versioning_260.cc

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#include <algorithm>
 
#include "BKE_idprop.hh"
#include "BLI_listbase.h"
#include "BLI_utildefines.h"
 
/* allow readfile to use deprecated functionality */
#define DNA_DEPRECATED_ALLOW
 
/* Define macros in `DNA_genfile.h`. */
#define DNA_GENFILE_VERSIONING_MACROS
 
#include "DNA_anim_types.h"
#include "DNA_brush_types.h"
#include "DNA_camera_types.h"
#include "DNA_cloth_types.h"
#include "DNA_constraint_types.h"
#include "DNA_dynamicpaint_types.h"
#include "DNA_fluid_types.h"
#include "DNA_genfile.h"
#include "DNA_light_types.h"
#include "DNA_linestyle_types.h"
#include "DNA_material_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_node_types.h"
#include "DNA_object_fluidsim_types.h"
#include "DNA_object_types.h"
#include "DNA_screen_types.h"
#include "DNA_sequence_types.h"
#include "DNA_space_types.h"
#include "DNA_text_types.h"
#include "DNA_view3d_types.h"
#include "DNA_world_types.h"
 
#undef DNA_GENFILE_VERSIONING_MACROS
 
#include "MEM_guardedalloc.h"
 
#include "BLI_math_matrix.h"
#include "BLI_math_rotation.h"
#include "BLI_math_vector.h"
#include "BLI_path_utils.hh"
#include "BLI_string.h"
#include "BLI_string_utf8.h"
#include "BLI_string_utils.hh"
 
#include "BKE_anim_visualization.h"
#include "BKE_customdata.hh"
#include "BKE_image.hh"
#include "BKE_main.hh" /* for Main */
#include "BKE_mesh_legacy_convert.hh"
#include "BKE_modifier.hh"
#include "BKE_node_legacy_types.hh"
#include "BKE_node_runtime.hh"
#include "BKE_node_tree_update.hh"
#include "BKE_particle.h"
#include "BKE_scene.hh"
#include "BKE_screen.hh"
#include "BKE_text.h" /* for txt_extended_ascii_as_utf8 */
#include "BKE_texture.h"
#include "BKE_tracking.h"
 
#include "SEQ_iterator.hh"
#include "SEQ_modifier.hh"
#include "SEQ_utils.hh"
 
#include "IMB_imbuf_enums.h"
 
#include "MOV_enums.hh"
 
#include "NOD_common.hh"
#include "NOD_composite.hh"
 
#include "BLO_readfile.hh"
 
#include "readfile.hh"

#define CLANG_FORMAT_NOP_WORKAROUND ((void)0)
 
/* Make preferences read-only, use `versioning_userdef.cc`. */
#define U (*((const UserDef *)&U))
 
static void do_versions_nodetree_image_default_alpha_output(bNodeTree *ntree)
{
  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
    if (ELEM(node->type_legacy, CMP_NODE_IMAGE, CMP_NODE_R_LAYERS)) {
      /* default Image output value should have 0 alpha */
      bNodeSocket *sock = static_cast<bNodeSocket *>(node->outputs.first);
      ((bNodeSocketValueRGBA *)sock->default_value)->value[3] = 0.0f;
    }
  }
}
 
static void do_versions_nodetree_convert_angle(bNodeTree *ntree)
{
  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
    if (node->type_legacy == CMP_NODE_ROTATE) {
      /* Convert degrees to radians. */
      bNodeSocket *sock = static_cast<bNodeSocket *>(node->inputs.first)->next;
      ((bNodeSocketValueFloat *)sock->default_value)->value = DEG2RADF(
          ((bNodeSocketValueFloat *)sock->default_value)->value);
    }
    else if (node->type_legacy == CMP_NODE_DBLUR) {
      /* Convert degrees to radians. */
      NodeDBlurData *ndbd = static_cast<NodeDBlurData *>(node->storage);
      ndbd->angle = DEG2RADF(ndbd->angle);
      ndbd->spin = DEG2RADF(ndbd->spin);
    }
    else if (node->type_legacy == CMP_NODE_DEFOCUS) {
      /* Convert degrees to radians. */
      NodeDefocus *nqd = static_cast<NodeDefocus *>(node->storage);
      /* XXX DNA char to float conversion seems to map the char value
       * into the [0.0f, 1.0f] range. */
      nqd->rotation = DEG2RADF(nqd->rotation * 255.0f);
    }
    else if (node->type_legacy == CMP_NODE_CHROMA_MATTE) {
      /* Convert degrees to radians. */
      NodeChroma *ndc = static_cast<NodeChroma *>(node->storage);
      ndc->t1 = DEG2RADF(ndc->t1);
      ndc->t2 = DEG2RADF(ndc->t2);
    }
    else if (node->type_legacy == CMP_NODE_GLARE) {
      /* Convert degrees to radians. */
      NodeGlare *ndg = static_cast<NodeGlare *>(node->storage);
      /* XXX DNA char to float conversion seems to map the char value
       * into the [0.0f, 1.0f] range. */
      ndg->angle_ofs = DEG2RADF(ndg->angle_ofs * 255.0f);
    }
    /* XXX TexMapping struct is used by other nodes too (at least node_composite_mapValue),
     *     but not the rot part...
     */
    else if (node->type_legacy == SH_NODE_MAPPING) {
      /* Convert degrees to radians. */
      TexMapping *tmap = static_cast<TexMapping *>(node->storage);
      tmap->rot[0] = DEG2RADF(tmap->rot[0]);
      tmap->rot[1] = DEG2RADF(tmap->rot[1]);
      tmap->rot[2] = DEG2RADF(tmap->rot[2]);
    }
  }
}
 
static void do_versions_image_settings_2_60(Scene *sce)
{
  /* RenderData.subimtype flag options for imtype */
  enum {
    R_OPENEXR_HALF = (1 << 0),
    R_OPENEXR_ZBUF = (1 << 1),
    R_PREVIEW_JPG = (1 << 2),
    R_CINEON_LOG = (1 << 3),
    R_TIFF_16BIT = (1 << 4),
 
    R_JPEG2K_12BIT = (1 << 5),
    /* Jpeg2000 */
    R_JPEG2K_16BIT = (1 << 6),
    R_JPEG2K_YCC = (1 << 7),
    /* when disabled use RGB */
    R_JPEG2K_CINE_PRESET = (1 << 8),
    R_JPEG2K_CINE_48FPS = (1 << 9),
  };
 
  /* NOTE: rd->subimtype is moved into individual settings now and no longer
   * exists */
  RenderData *rd = &sce->r;
  ImageFormatData *imf = &sce->r.im_format;
 
  /* we know no data loss happens here, the old values were in char range */
  imf->imtype = char(rd->imtype);
  imf->planes = char(rd->planes);
  imf->compress = char(rd->quality);
  imf->quality = char(rd->quality);
 
  /* default, was stored in multiple places, may override later */
  imf->depth = R_IMF_CHAN_DEPTH_8;
 
  /* openexr */
  imf->exr_codec = rd->quality & 7; /* 0-4 were valid values back then */
 
  switch (imf->imtype) {
    case R_IMF_IMTYPE_OPENEXR:
      imf->depth = (rd->subimtype & R_OPENEXR_HALF) ? R_IMF_CHAN_DEPTH_16 : R_IMF_CHAN_DEPTH_32;
      if (rd->subimtype & R_PREVIEW_JPG) {
        imf->flag |= R_IMF_FLAG_PREVIEW_JPG;
      }
      break;
    case R_IMF_IMTYPE_TIFF:
      if (rd->subimtype & R_TIFF_16BIT) {
        imf->depth = R_IMF_CHAN_DEPTH_16;
      }
      break;
    case R_IMF_IMTYPE_JP2:
      if (rd->subimtype & R_JPEG2K_16BIT) {
        imf->depth = R_IMF_CHAN_DEPTH_16;
      }
      else if (rd->subimtype & R_JPEG2K_12BIT) {
        imf->depth = R_IMF_CHAN_DEPTH_12;
      }
 
      if (rd->subimtype & R_JPEG2K_YCC) {
        imf->jp2_flag |= R_IMF_JP2_FLAG_YCC;
      }
      if (rd->subimtype & R_JPEG2K_CINE_PRESET) {
        imf->jp2_flag |= R_IMF_JP2_FLAG_CINE_PRESET;
      }
      if (rd->subimtype & R_JPEG2K_CINE_48FPS) {
        imf->jp2_flag |= R_IMF_JP2_FLAG_CINE_48;
      }
      break;
    case R_IMF_IMTYPE_CINEON:
    case R_IMF_IMTYPE_DPX:
      if (rd->subimtype & R_CINEON_LOG) {
        imf->cineon_flag |= R_IMF_CINEON_FLAG_LOG;
      }
      break;
  }
}
 
/* socket use flags were only temporary before */
static void do_versions_nodetree_socket_use_flags_2_62(bNodeTree *ntree)
{
  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
    LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
      sock->flag &= ~SOCK_IS_LINKED;
    }
    LISTBASE_FOREACH (bNodeSocket *, sock, &node->outputs) {
      sock->flag &= ~SOCK_IS_LINKED;
    }
  }
  LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->inputs_legacy) {
    sock->flag &= ~SOCK_IS_LINKED;
  }
  LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->outputs_legacy) {
    sock->flag &= ~SOCK_IS_LINKED;
  }
 
  LISTBASE_FOREACH (bNodeLink *, link, &ntree->links) {
    link->fromsock->flag |= SOCK_IS_LINKED;
    link->tosock->flag |= SOCK_IS_LINKED;
  }
}
 
static void do_versions_nodetree_multi_file_output_format_2_62_1(Scene *sce, bNodeTree *ntree)
{
  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
    if (node->type_legacy == CMP_NODE_OUTPUT_FILE) {
      /* previous CMP_NODE_OUTPUT_FILE nodes get converted to multi-file outputs */
      NodeImageFile *old_data = static_cast<NodeImageFile *>(node->storage);
      NodeImageMultiFile *nimf = MEM_callocN<NodeImageMultiFile>("node image multi file");
      bNodeSocket *old_image = static_cast<bNodeSocket *>(BLI_findlink(&node->inputs, 0));
      bNodeSocket *old_z = static_cast<bNodeSocket *>(BLI_findlink(&node->inputs, 1));
 
      char filename[FILE_MAXFILE];
 
      /* ugly, need to remove the old inputs list to avoid bad pointer
       * checks when adding new sockets.
       * sock->storage is expected to contain path info in ntreeCompositOutputFileAddSocket.
       */
      BLI_listbase_clear(&node->inputs);
 
      node->storage = nimf;
 
      /* looks like storage data can be messed up somehow, stupid check here */
      if (old_data) {
        char basepath[FILE_MAXDIR];
 
        /* split off filename from the old path, to be used as socket sub-path */
        BLI_path_split_dir_file(
            old_data->name, basepath, sizeof(basepath), filename, sizeof(filename));
 
        STRNCPY(nimf->base_path, basepath);
        nimf->format = old_data->im_format;
      }
      else {
        STRNCPY(filename, old_image->name);
      }
 
      /* If Z buffer is saved, change the image type to multi-layer EXR.
       * XXX: this is slightly messy, Z buffer was ignored before for anything but EXR and IRIS ...
       * I'm just assuming here that IRIZ means IRIS with z buffer. */
      if (old_data && ELEM(old_data->im_format.imtype, R_IMF_IMTYPE_IRIZ, R_IMF_IMTYPE_OPENEXR)) {
        char sockpath[FILE_MAX];
 
        nimf->format.imtype = R_IMF_IMTYPE_MULTILAYER;
 
        SNPRINTF(sockpath, "%s_Image", filename);
        bNodeSocket *sock = ntreeCompositOutputFileAddSocket(ntree, node, sockpath, &nimf->format);
        /* XXX later do_versions copies path from socket name, need to set this explicitly */
        STRNCPY(sock->name, sockpath);
        if (old_image->link) {
          old_image->link->tosock = sock;
          sock->link = old_image->link;
        }
 
        SNPRINTF(sockpath, "%s_Z", filename);
        sock = ntreeCompositOutputFileAddSocket(ntree, node, sockpath, &nimf->format);
        /* XXX later do_versions copies path from socket name, need to set this explicitly */
        STRNCPY(sock->name, sockpath);
        if (old_z->link) {
          old_z->link->tosock = sock;
          sock->link = old_z->link;
        }
      }
      else {
        bNodeSocket *sock = ntreeCompositOutputFileAddSocket(ntree, node, filename, &nimf->format);
        /* XXX later do_versions copies path from socket name, need to set this explicitly */
        STRNCPY(sock->name, filename);
        if (old_image->link) {
          old_image->link->tosock = sock;
          sock->link = old_image->link;
        }
      }
 
      blender::bke::node_remove_socket(*ntree, *node, *old_image);
      blender::bke::node_remove_socket(*ntree, *node, *old_z);
      if (old_data) {
        MEM_freeN(old_data);
      }
    }
    else if (node->type_legacy == CMP_NODE_OUTPUT_MULTI_FILE__DEPRECATED) {
      NodeImageMultiFile *nimf = static_cast<NodeImageMultiFile *>(node->storage);
 
      /* CMP_NODE_OUTPUT_MULTI_FILE has been re-declared as CMP_NODE_OUTPUT_FILE */
      node->type_legacy = CMP_NODE_OUTPUT_FILE;
 
      /* initialize the node-wide image format from render data, if available */
      if (sce) {
        nimf->format = sce->r.im_format;
      }
 
      /* transfer render format toggle to node format toggle */
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
        NodeImageMultiFileSocket *simf = static_cast<NodeImageMultiFileSocket *>(sock->storage);
        simf->use_node_format = simf->use_render_format;
      }
 
      /* we do have preview now */
      node->flag |= NODE_PREVIEW;
    }
  }
}
 
/* blue and red are swapped pre 2.62.1, be sane (red == red) now! */
static void do_versions_mesh_mloopcol_swap_2_62_1(Mesh *mesh)
{
  for (int a = 0; a < mesh->corner_data.totlayer; a++) {
    CustomDataLayer *layer = &mesh->corner_data.layers[a];
 
    if (layer->type == CD_PROP_BYTE_COLOR) {
      MLoopCol *mloopcol = static_cast<MLoopCol *>(layer->data);
      for (int i = 0; i < mesh->corners_num; i++, mloopcol++) {
        std::swap(mloopcol->r, mloopcol->b);
      }
    }
  }
}
 
static void do_versions_nodetree_multi_file_output_path_2_63_1(bNodeTree *ntree)
{
  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
    if (node->type_legacy == CMP_NODE_OUTPUT_FILE) {
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
        NodeImageMultiFileSocket *input = static_cast<NodeImageMultiFileSocket *>(sock->storage);
        /* input file path is stored in dedicated struct now instead socket name */
        STRNCPY(input->path, sock->name);
      }
    }
  }
}
 
static void do_versions_nodetree_file_output_layers_2_64_5(bNodeTree *ntree)
{
  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
    if (node->type_legacy == CMP_NODE_OUTPUT_FILE) {
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
        NodeImageMultiFileSocket *input = static_cast<NodeImageMultiFileSocket *>(sock->storage);
 
        /* Multi-layer names are stored as separate strings now,
         * used the path string before, so copy it over. */
        STRNCPY_UTF8(input->layer, input->path);
 
        /* paths/layer names also have to be unique now, initial check */
        ntreeCompositOutputFileUniquePath(&node->inputs, sock, input->path, '_');
        ntreeCompositOutputFileUniqueLayer(&node->inputs, sock, input->layer, '_');
      }
    }
  }
}
 
static void do_versions_nodetree_image_layer_2_64_5(bNodeTree *ntree)
{
  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
    if (node->type_legacy == CMP_NODE_IMAGE) {
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->outputs) {
        NodeImageLayer *output = MEM_callocN<NodeImageLayer>("node image layer");
 
        /* Take pass index both from current storage pointer (actually an int). */
        output->pass_index = POINTER_AS_INT(sock->storage);
 
        /* replace socket data pointer */
        sock->storage = output;
      }
    }
  }
}
 
static void do_versions_nodetree_frame_2_64_6(bNodeTree *ntree)
{
  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
    if (node->type_legacy == NODE_FRAME) {
      /* initialize frame node storage data */
      if (node->storage == nullptr) {
        NodeFrame *data = MEM_callocN<NodeFrame>("frame node storage");
        node->storage = data;
 
        /* copy current flags */
        data->flag = node->custom1;
 
        data->label_size = 20;
      }
    }
 
    /* initialize custom node color */
    node->color[0] = node->color[1] = node->color[2] = 0.608f; /* default theme color */
  }
}
 
static void do_versions_affine_tracker_track(MovieTrackingTrack *track)
{
  for (int i = 0; i < track->markersnr; i++) {
    MovieTrackingMarker *marker = &track->markers[i];
 
    if (is_zero_v2(marker->pattern_corners[0]) && is_zero_v2(marker->pattern_corners[1]) &&
        is_zero_v2(marker->pattern_corners[2]) && is_zero_v2(marker->pattern_corners[3]))
    {
      marker->pattern_corners[0][0] = track->pat_min_legacy[0];
      marker->pattern_corners[0][1] = track->pat_min_legacy[1];
 
      marker->pattern_corners[1][0] = track->pat_max_legacy[0];
      marker->pattern_corners[1][1] = track->pat_min_legacy[1];
 
      marker->pattern_corners[2][0] = track->pat_max_legacy[0];
      marker->pattern_corners[2][1] = track->pat_max_legacy[1];
 
      marker->pattern_corners[3][0] = track->pat_min_legacy[0];
      marker->pattern_corners[3][1] = track->pat_max_legacy[1];
    }
 
    if (is_zero_v2(marker->search_min) && is_zero_v2(marker->search_max)) {
      copy_v2_v2(marker->search_min, track->search_min_legacy);
      copy_v2_v2(marker->search_max, track->search_max_legacy);
    }
  }
}
 
static const char *node_get_static_idname(int type, int treetype)
{
  /* XXX hack, group types share a single static integer identifier,
   * but are registered as separate types */
  if (type == NODE_GROUP) {
    switch (treetype) {
      case NTREE_COMPOSIT:
        return "CompositorNodeGroup";
      case NTREE_SHADER:
        return "ShaderNodeGroup";
      case NTREE_TEXTURE:
        return "TextureNodeGroup";
    }
  }
  else {
    switch (type) {
      case NODE_FRAME:
        return "NodeFrame";
      case NODE_GROUP:
        return "NodeGroup";
      case NODE_GROUP_INPUT:
        return "NodeGroupInput";
      case NODE_GROUP_OUTPUT:
        return "NodeGroupOutput";
      case NODE_REROUTE:
        return "NodeReroute";
      case /*SH_NODE_OUTPUT*/ 1:
        return "ShaderNodeOutput";
      case /*SH_NODE_MATERIAL*/ 100:
        return "ShaderNodeMaterial";
      case SH_NODE_RGB:
        return "ShaderNodeRGB";
      case SH_NODE_VALUE:
        return "ShaderNodeValue";
      case SH_NODE_MIX_RGB_LEGACY:
        return "ShaderNodeMixRGB";
      case SH_NODE_VALTORGB:
        return "ShaderNodeValToRGB";
      case SH_NODE_RGBTOBW:
        return "ShaderNodeRGBToBW";
      case /*SH_NODE_TEXTURE*/ 106:
        return "ShaderNodeTexture";
      case SH_NODE_NORMAL:
        return "ShaderNodeNormal";
      case SH_NODE_GAMMA:
        return "ShaderNodeGamma";
      case SH_NODE_BRIGHTCONTRAST:
        return "ShaderNodeBrightContrast";
      case /*SH_NODE_GEOMETRY*/ 108:
        return "ShaderNodeGeometry";
      case SH_NODE_MAPPING:
        return "ShaderNodeMapping";
      case SH_NODE_CURVE_VEC:
        return "ShaderNodeVectorCurve";
      case SH_NODE_CURVE_RGB:
        return "ShaderNodeRGBCurve";
      case SH_NODE_CAMERA:
        return "ShaderNodeCameraData";
      case SH_NODE_MATH:
        return "ShaderNodeMath";
      case SH_NODE_VECTOR_MATH:
        return "ShaderNodeVectorMath";
      case SH_NODE_SQUEEZE:
        return "ShaderNodeSqueeze";
      case /*SH_NODE_MATERIAL_EXT*/ 118:
        return "ShaderNodeExtendedMaterial";
      case SH_NODE_INVERT:
        return "ShaderNodeInvert";
      case SH_NODE_SEPRGB_LEGACY:
        return "ShaderNodeSeparateRGB";
      case SH_NODE_COMBRGB_LEGACY:
        return "ShaderNodeCombineRGB";
      case SH_NODE_HUE_SAT:
        return "ShaderNodeHueSaturation";
      case SH_NODE_OUTPUT_MATERIAL:
        return "ShaderNodeOutputMaterial";
      case SH_NODE_OUTPUT_LIGHT:
        return "ShaderNodeOutputLamp";
      case SH_NODE_OUTPUT_WORLD:
        return "ShaderNodeOutputWorld";
      case SH_NODE_FRESNEL:
        return "ShaderNodeFresnel";
      case SH_NODE_LAYER_WEIGHT:
        return "ShaderNodeLayerWeight";
      case SH_NODE_MIX_SHADER:
        return "ShaderNodeMixShader";
      case SH_NODE_ADD_SHADER:
        return "ShaderNodeAddShader";
      case SH_NODE_ATTRIBUTE:
        return "ShaderNodeAttribute";
      case SH_NODE_AMBIENT_OCCLUSION:
        return "ShaderNodeAmbientOcclusion";
      case SH_NODE_BACKGROUND:
        return "ShaderNodeBackground";
      case SH_NODE_HOLDOUT:
        return "ShaderNodeHoldout";
      case /*SH_NODE_BSDF_ANISOTROPIC*/ 131:
        return "ShaderNodeBsdfAnisotropic";
      case SH_NODE_BSDF_DIFFUSE:
        return "ShaderNodeBsdfDiffuse";
      case /*SH_NODE_BSDF_GLOSSY*/ 133:
        return "ShaderNodeBsdfGlossy";
      case SH_NODE_BSDF_GLASS:
        return "ShaderNodeBsdfGlass";
      case SH_NODE_BSDF_REFRACTION:
        return "ShaderNodeBsdfRefraction";
      case SH_NODE_BSDF_TRANSLUCENT:
        return "ShaderNodeBsdfTranslucent";
      case SH_NODE_BSDF_TRANSPARENT:
        return "ShaderNodeBsdfTransparent";
      case SH_NODE_BSDF_RAY_PORTAL:
        return "ShaderNodeBsdfRayPortal";
      case /*SH_NODE_BSDF_VELVET*/ 139:
        return "ShaderNodeBsdfVelvet";
      case /*SH_NODE_VOLUME_TRANSPARENT*/ 161:
        return "ShaderNodeVolumeTransparent";
      case /*SH_NODE_VOLUME_ISOTROPIC*/ 162:
        return "ShaderNodeVolumeIsotropic";
      case SH_NODE_EMISSION:
        return "ShaderNodeEmission";
      case SH_NODE_NEW_GEOMETRY:
        return "ShaderNodeNewGeometry";
      case SH_NODE_LIGHT_PATH:
        return "ShaderNodeLightPath";
      case SH_NODE_LIGHT_FALLOFF:
        return "ShaderNodeLightFalloff";
      case SH_NODE_OBJECT_INFO:
        return "ShaderNodeObjectInfo";
      case SH_NODE_PARTICLE_INFO:
        return "ShaderNodeParticleInfo";
      case SH_NODE_HAIR_INFO:
        return "ShaderNodeHairInfo";
      case SH_NODE_BUMP:
        return "ShaderNodeBump";
      case SH_NODE_NORMAL_MAP:
        return "ShaderNodeNormalMap";
      case SH_NODE_TANGENT:
        return "ShaderNodeTangent";
      case SH_NODE_SCRIPT:
        return "ShaderNodeScript";
      case SH_NODE_TEX_IMAGE:
        return "ShaderNodeTexImage";
      case SH_NODE_TEX_ENVIRONMENT:
        return "ShaderNodeTexEnvironment";
      case SH_NODE_TEX_SKY:
        return "ShaderNodeTexSky";
      case SH_NODE_TEX_GRADIENT:
        return "ShaderNodeTexGradient";
      case SH_NODE_TEX_NOISE:
        return "ShaderNodeTexNoise";
      case SH_NODE_TEX_MAGIC:
        return "ShaderNodeTexMagic";
      case SH_NODE_TEX_WAVE:
        return "ShaderNodeTexWave";
      case SH_NODE_TEX_MUSGRAVE_DEPRECATED:
        return "ShaderNodeTexMusgrave";
      case SH_NODE_TEX_VORONOI:
        return "ShaderNodeTexVoronoi";
      case SH_NODE_TEX_CHECKER:
        return "ShaderNodeTexChecker";
      case SH_NODE_TEX_BRICK:
        return "ShaderNodeTexBrick";
      case SH_NODE_TEX_COORD:
        return "ShaderNodeTexCoord";
      case CMP_NODE_VIEWER:
        return "CompositorNodeViewer";
      case CMP_NODE_RGB:
        return "CompositorNodeRGB";
      case CMP_NODE_VALUE:
        return "CompositorNodeValue";
      case CMP_NODE_MIX_RGB:
        return "CompositorNodeMixRGB";
      case CMP_NODE_VALTORGB:
        return "CompositorNodeValToRGB";
      case CMP_NODE_RGBTOBW:
        return "CompositorNodeRGBToBW";
      case CMP_NODE_NORMAL:
        return "CompositorNodeNormal";
      case CMP_NODE_CURVE_VEC:
        return "CompositorNodeCurveVec";
      case CMP_NODE_CURVE_RGB:
        return "CompositorNodeCurveRGB";
      case CMP_NODE_ALPHAOVER:
        return "CompositorNodeAlphaOver";
      case CMP_NODE_BLUR:
        return "CompositorNodeBlur";
      case CMP_NODE_FILTER:
        return "CompositorNodeFilter";
      case CMP_NODE_MAP_VALUE:
        return "CompositorNodeMapValue";
      case CMP_NODE_MAP_RANGE:
        return "CompositorNodeMapRange";
      case CMP_NODE_TIME:
        return "CompositorNodeTime";
      case CMP_NODE_VECBLUR:
        return "CompositorNodeVecBlur";
      case CMP_NODE_SEPRGBA_LEGACY:
        return "CompositorNodeSepRGBA";
      case CMP_NODE_SEPHSVA_LEGACY:
        return "CompositorNodeSepHSVA";
      case CMP_NODE_SETALPHA:
        return "CompositorNodeSetAlpha";
      case CMP_NODE_HUE_SAT:
        return "CompositorNodeHueSat";
      case CMP_NODE_IMAGE:
        return "CompositorNodeImage";
      case CMP_NODE_R_LAYERS:
        return "CompositorNodeRLayers";
      case CMP_NODE_COMPOSITE:
        return "CompositorNodeComposite";
      case CMP_NODE_OUTPUT_FILE:
        return "CompositorNodeOutputFile";
      case CMP_NODE_TEXTURE:
        return "CompositorNodeTexture";
      case CMP_NODE_TRANSLATE:
        return "CompositorNodeTranslate";
      case CMP_NODE_ZCOMBINE:
        return "CompositorNodeZcombine";
      case CMP_NODE_COMBRGBA_LEGACY:
        return "CompositorNodeCombRGBA";
      case CMP_NODE_DILATEERODE:
        return "CompositorNodeDilateErode";
      case CMP_NODE_INPAINT:
        return "CompositorNodeInpaint";
      case CMP_NODE_DESPECKLE:
        return "CompositorNodeDespeckle";
      case CMP_NODE_ROTATE:
        return "CompositorNodeRotate";
      case CMP_NODE_SCALE:
        return "CompositorNodeScale";
      case CMP_NODE_SEPYCCA_LEGACY:
        return "CompositorNodeSepYCCA";
      case CMP_NODE_COMBYCCA_LEGACY:
        return "CompositorNodeCombYCCA";
      case CMP_NODE_SEPYUVA_LEGACY:
        return "CompositorNodeSepYUVA";
      case CMP_NODE_COMBYUVA_LEGACY:
        return "CompositorNodeCombYUVA";
      case CMP_NODE_DIFF_MATTE:
        return "CompositorNodeDiffMatte";
      case CMP_NODE_COLOR_SPILL:
        return "CompositorNodeColorSpill";
      case CMP_NODE_CHROMA_MATTE:
        return "CompositorNodeChromaMatte";
      case CMP_NODE_CHANNEL_MATTE:
        return "CompositorNodeChannelMatte";
      case CMP_NODE_FLIP:
        return "CompositorNodeFlip";
      case CMP_NODE_SPLITVIEWER__DEPRECATED:
        return "CompositorNodeSplitViewer";
      case CMP_NODE_MAP_UV:
        return "CompositorNodeMapUV";
      case CMP_NODE_ID_MASK:
        return "CompositorNodeIDMask";
      case CMP_NODE_DOUBLEEDGEMASK:
        return "CompositorNodeDoubleEdgeMask";
      case CMP_NODE_DEFOCUS:
        return "CompositorNodeDefocus";
      case CMP_NODE_DISPLACE:
        return "CompositorNodeDisplace";
      case CMP_NODE_COMBHSVA_LEGACY:
        return "CompositorNodeCombHSVA";
      case CMP_NODE_MATH:
        return "CompositorNodeMath";
      case CMP_NODE_LUMA_MATTE:
        return "CompositorNodeLumaMatte";
      case CMP_NODE_BRIGHTCONTRAST:
        return "CompositorNodeBrightContrast";
      case CMP_NODE_GAMMA:
        return "CompositorNodeGamma";
      case CMP_NODE_INVERT:
        return "CompositorNodeInvert";
      case CMP_NODE_NORMALIZE:
        return "CompositorNodeNormalize";
      case CMP_NODE_CROP:
        return "CompositorNodeCrop";
      case CMP_NODE_DBLUR:
        return "CompositorNodeDBlur";
      case CMP_NODE_BILATERALBLUR:
        return "CompositorNodeBilateralblur";
      case CMP_NODE_PREMULKEY:
        return "CompositorNodePremulKey";
      case CMP_NODE_GLARE:
        return "CompositorNodeGlare";
      case CMP_NODE_TONEMAP:
        return "CompositorNodeTonemap";
      case CMP_NODE_LENSDIST:
        return "CompositorNodeLensdist";
      case CMP_NODE_VIEW_LEVELS:
        return "CompositorNodeLevels";
      case CMP_NODE_COLOR_MATTE:
        return "CompositorNodeColorMatte";
      case CMP_NODE_DIST_MATTE:
        return "CompositorNodeDistanceMatte";
      case CMP_NODE_COLORBALANCE:
        return "CompositorNodeColorBalance";
      case CMP_NODE_HUECORRECT:
        return "CompositorNodeHueCorrect";
      case CMP_NODE_MOVIECLIP:
        return "CompositorNodeMovieClip";
      case CMP_NODE_TRANSFORM:
        return "CompositorNodeTransform";
      case CMP_NODE_STABILIZE2D:
        return "CompositorNodeStabilize";
      case CMP_NODE_MOVIEDISTORTION:
        return "CompositorNodeMovieDistortion";
      case CMP_NODE_MASK_BOX:
        return "CompositorNodeBoxMask";
      case CMP_NODE_MASK_ELLIPSE:
        return "CompositorNodeEllipseMask";
      case CMP_NODE_BOKEHIMAGE:
        return "CompositorNodeBokehImage";
      case CMP_NODE_BOKEHBLUR:
        return "CompositorNodeBokehBlur";
      case CMP_NODE_SWITCH:
        return "CompositorNodeSwitch";
      case CMP_NODE_COLORCORRECTION:
        return "CompositorNodeColorCorrection";
      case CMP_NODE_MASK:
        return "CompositorNodeMask";
      case CMP_NODE_KEYINGSCREEN:
        return "CompositorNodeKeyingScreen";
      case CMP_NODE_KEYING:
        return "CompositorNodeKeying";
      case CMP_NODE_TRACKPOS:
        return "CompositorNodeTrackPos";
      case CMP_NODE_PIXELATE:
        return "CompositorNodePixelate";
      case TEX_NODE_OUTPUT:
        return "TextureNodeOutput";
      case TEX_NODE_CHECKER:
        return "TextureNodeChecker";
      case TEX_NODE_TEXTURE:
        return "TextureNodeTexture";
      case TEX_NODE_BRICKS:
        return "TextureNodeBricks";
      case TEX_NODE_MATH:
        return "TextureNodeMath";
      case TEX_NODE_MIX_RGB:
        return "TextureNodeMixRGB";
      case TEX_NODE_RGBTOBW:
        return "TextureNodeRGBToBW";
      case TEX_NODE_VALTORGB:
        return "TextureNodeValToRGB";
      case TEX_NODE_IMAGE:
        return "TextureNodeImage";
      case TEX_NODE_CURVE_RGB:
        return "TextureNodeCurveRGB";
      case TEX_NODE_INVERT:
        return "TextureNodeInvert";
      case TEX_NODE_HUE_SAT:
        return "TextureNodeHueSaturation";
      case TEX_NODE_CURVE_TIME:
        return "TextureNodeCurveTime";
      case TEX_NODE_ROTATE:
        return "TextureNodeRotate";
      case TEX_NODE_VIEWER:
        return "TextureNodeViewer";
      case TEX_NODE_TRANSLATE:
        return "TextureNodeTranslate";
      case TEX_NODE_COORD:
        return "TextureNodeCoordinates";
      case TEX_NODE_DISTANCE:
        return "TextureNodeDistance";
      case TEX_NODE_COMPOSE_LEGACY:
        return "TextureNodeCompose";
      case TEX_NODE_DECOMPOSE_LEGACY:
        return "TextureNodeDecompose";
      case TEX_NODE_VALTONOR:
        return "TextureNodeValToNor";
      case TEX_NODE_SCALE:
        return "TextureNodeScale";
      case TEX_NODE_AT:
        return "TextureNodeAt";
      case TEX_NODE_PROC + TEX_VORONOI:
        return "TextureNodeTexVoronoi";
      case TEX_NODE_PROC + TEX_BLEND:
        return "TextureNodeTexBlend";
      case TEX_NODE_PROC + TEX_MAGIC:
        return "TextureNodeTexMagic";
      case TEX_NODE_PROC + TEX_MARBLE:
        return "TextureNodeTexMarble";
      case TEX_NODE_PROC + TEX_CLOUDS:
        return "TextureNodeTexClouds";
      case TEX_NODE_PROC + TEX_WOOD:
        return "TextureNodeTexWood";
      case TEX_NODE_PROC + TEX_MUSGRAVE:
        return "TextureNodeTexMusgrave";
      case TEX_NODE_PROC + TEX_NOISE:
        return "TextureNodeTexNoise";
      case TEX_NODE_PROC + TEX_STUCCI:
        return "TextureNodeTexStucci";
      case TEX_NODE_PROC + TEX_DISTNOISE:
        return "TextureNodeTexDistNoise";
    }
  }
  return "";
}
 
static blender::StringRefNull node_socket_get_static_idname(bNodeSocket *sock)
{
  switch (sock->type) {
    case SOCK_FLOAT: {
      bNodeSocketValueFloat *dval = sock->default_value_typed<bNodeSocketValueFloat>();
      return *blender::bke::node_static_socket_type(SOCK_FLOAT, dval->subtype);
    }
    case SOCK_INT: {
      bNodeSocketValueInt *dval = sock->default_value_typed<bNodeSocketValueInt>();
      return *blender::bke::node_static_socket_type(SOCK_INT, dval->subtype);
    }
    case SOCK_BOOLEAN: {
      return *blender::bke::node_static_socket_type(SOCK_BOOLEAN, PROP_NONE);
    }
    case SOCK_VECTOR: {
      bNodeSocketValueVector *dval = sock->default_value_typed<bNodeSocketValueVector>();
      return *blender::bke::node_static_socket_type(SOCK_VECTOR, dval->subtype);
    }
    case SOCK_RGBA: {
      return *blender::bke::node_static_socket_type(SOCK_RGBA, PROP_NONE);
    }
    case SOCK_STRING: {
      bNodeSocketValueString *dval = sock->default_value_typed<bNodeSocketValueString>();
      return *blender::bke::node_static_socket_type(SOCK_STRING, dval->subtype);
    }
    case SOCK_SHADER: {
      return *blender::bke::node_static_socket_type(SOCK_SHADER, PROP_NONE);
    }
  }
  return "";
}
 
static void do_versions_nodetree_customnodes(bNodeTree *ntree, int /*is_group*/)
{
  /* initialize node tree type idname */
  {
    ntree->typeinfo = nullptr;
 
    /* tree type idname */
    switch (ntree->type) {
      case NTREE_COMPOSIT:
        STRNCPY(ntree->idname, "CompositorNodeTree");
        break;
      case NTREE_SHADER:
        STRNCPY(ntree->idname, "ShaderNodeTree");
        break;
      case NTREE_TEXTURE:
        STRNCPY(ntree->idname, "TextureNodeTree");
        break;
    }
 
    /* node type idname */
    LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
      BLI_strncpy(node->idname,
                  node_get_static_idname(node->type_legacy, ntree->type),
                  sizeof(node->idname));
 
      /* existing old nodes have been initialized already */
      node->flag |= NODE_INIT;
 
      /* sockets idname */
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
        STRNCPY(sock->idname, node_socket_get_static_idname(sock).c_str());
      }
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->outputs) {
        STRNCPY(sock->idname, node_socket_get_static_idname(sock).c_str());
      }
    }
    /* tree sockets idname */
    LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->inputs_legacy) {
      STRNCPY(sock->idname, node_socket_get_static_idname(sock).c_str());
    }
    LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->outputs_legacy) {
      STRNCPY(sock->idname, node_socket_get_static_idname(sock).c_str());
    }
  }
 
  {
    CLANG_FORMAT_NOP_WORKAROUND;
    /* initialize socket in_out values */
    LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
        sock->in_out = SOCK_IN;
      }
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->outputs) {
        sock->in_out = SOCK_OUT;
      }
    }
    LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->inputs_legacy) {
      sock->in_out = SOCK_IN;
    }
    LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->outputs_legacy) {
      sock->in_out = SOCK_OUT;
    }
  }
 
  /* initialize socket identifier strings */
  {
    LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
        STRNCPY(sock->identifier, sock->name);
        BLI_uniquename(&node->inputs,
                       sock,
                       "socket",
                       '.',
                       offsetof(bNodeSocket, identifier),
                       sizeof(sock->identifier));
      }
      LISTBASE_FOREACH (bNodeSocket *, sock, &node->outputs) {
        STRNCPY(sock->identifier, sock->name);
        BLI_uniquename(&node->outputs,
                       sock,
                       "socket",
                       '.',
                       offsetof(bNodeSocket, identifier),
                       sizeof(sock->identifier));
      }
    }
    LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->inputs_legacy) {
      STRNCPY(sock->identifier, sock->name);
      BLI_uniquename(&ntree->inputs_legacy,
                     sock,
                     "socket",
                     '.',
                     offsetof(bNodeSocket, identifier),
                     sizeof(sock->identifier));
    }
    LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->outputs_legacy) {
      STRNCPY(sock->identifier, sock->name);
      BLI_uniquename(&ntree->outputs_legacy,
                     sock,
                     "socket",
                     '.',
                     offsetof(bNodeSocket, identifier),
                     sizeof(sock->identifier));
    }
  }
}
 
/* Sync functions update formula parameters for other modes, such that the result is comparable.
 * Note that the results are not exactly the same due to differences in color handling
 * (sRGB conversion happens for LGG),
 * but this keeps settings comparable. */
static void color_balance_node_cdl_from_lgg(bNode *node)
{
  NodeColorBalance *n = (NodeColorBalance *)node->storage;
 
  for (int c = 0; c < 3; c++) {
    n->slope[c] = (2.0f - n->lift[c]) * n->gain[c];
    n->offset[c] = (n->lift[c] - 1.0f) * n->gain[c];
    n->power[c] = (n->gamma[c] != 0.0f) ? 1.0f / n->gamma[c] : 1000000.0f;
  }
}
 
static void color_balance_node_lgg_from_cdl(bNode *node)
{
  NodeColorBalance *n = (NodeColorBalance *)node->storage;
 
  for (int c = 0; c < 3; c++) {
    float d = n->slope[c] + n->offset[c];
    n->lift[c] = (d != 0.0f ? n->slope[c] + 2.0f * n->offset[c] / d : 0.0f);
    n->gain[c] = d;
    n->gamma[c] = (n->power[c] != 0.0f) ? 1.0f / n->power[c] : 1000000.0f;
  }
}
 
static bool strip_colorbalance_update_cb(Strip *strip, void * /*user_data*/)
{
  StripData *data = strip->data;
 
  if (data && data->color_balance) {
    StripModifierData *smd = blender::seq::modifier_new(
        strip, nullptr, seqModifierType_ColorBalance);
    ColorBalanceModifierData *cbmd = (ColorBalanceModifierData *)smd;
 
    cbmd->color_balance = *data->color_balance;
 
    /* multiplication with color balance used is handled differently,
     * so we need to move multiplication to modifier so files would be
     * compatible
     */
    cbmd->color_multiply = strip->mul;
    strip->mul = 1.0f;
 
    MEM_freeN(data->color_balance);
    data->color_balance = nullptr;
  }
  return true;
}
 
static bool strip_set_alpha_mode_cb(Strip *strip, void * /*user_data*/)
{
  enum { SEQ_MAKE_PREMUL = (1 << 6) };
  if (strip->flag & SEQ_MAKE_PREMUL) {
    strip->alpha_mode = SEQ_ALPHA_STRAIGHT;
  }
  else {
    blender::seq::alpha_mode_from_file_extension(strip);
  }
  return true;
}
 
static bool strip_set_wipe_angle_cb(Strip *strip, void * /*user_data*/)
{
  if (strip->type == STRIP_TYPE_WIPE) {
    WipeVars *wv = static_cast<WipeVars *>(strip->effectdata);
    wv->angle = DEG2RADF(wv->angle);
  }
  return true;
}
 
/* Create a socket stub without typeinfo. */
static bNodeSocket *version_make_socket_stub(const char *idname,
                                             eNodeSocketDatatype type,
                                             eNodeSocketInOut in_out,
                                             const char *identifier,
                                             const char *name,
                                             const void *default_value,
                                             const IDProperty *prop)
{
  bNodeSocket *socket = MEM_callocN<bNodeSocket>(__func__);
  socket->runtime = MEM_new<blender::bke::bNodeSocketRuntime>(__func__);
  STRNCPY(socket->idname, idname);
  socket->type = int(type);
  socket->in_out = int(in_out);
 
  socket->limit = (in_out == SOCK_IN ? 1 : 0xFFF);
 
  STRNCPY(socket->identifier, identifier);
  STRNCPY(socket->name, name);
  socket->storage = nullptr;
  socket->flag |= SOCK_COLLAPSED;
 
  /* NOTE: technically socket values can store ref-counted ID pointers, but at this stage the
   * refcount can be ignored. It gets recomputed after lib-linking for all ID pointers. Socket
   * values don't have allocated data, so a simple duplication works here. */
  socket->default_value = default_value ? MEM_dupallocN(default_value) : nullptr;
  socket->prop = prop ? IDP_CopyProperty(prop) : nullptr;
 
  return socket;
}
 
/* Same as node_add_static_node but does not rely on node typeinfo. */
static bNode *version_add_group_in_out_node(bNodeTree *ntree, const int type)
{
  ListBase *ntree_socket_list = nullptr;
  ListBase *node_socket_list = nullptr;
  eNodeSocketInOut socket_in_out = SOCK_IN;
 
  bNode *node = MEM_callocN<bNode>("new node");
  switch (type) {
    case NODE_GROUP_INPUT:
      STRNCPY(node->idname, "NodeGroupInput");
      ntree_socket_list = &ntree->inputs_legacy;
      /* Group input has only outputs. */
      node_socket_list = &node->outputs;
      socket_in_out = SOCK_OUT;
      break;
    case NODE_GROUP_OUTPUT:
      STRNCPY(node->idname, "NodeGroupOutput");
      ntree_socket_list = &ntree->outputs_legacy;
      /* Group output has only inputs. */
      node_socket_list = &node->inputs;
      socket_in_out = SOCK_IN;
      break;
    default:
      BLI_assert_unreachable();
      return nullptr;
  }
 
  node->runtime = MEM_new<blender::bke::bNodeRuntime>(__func__);
  BLI_addtail(&ntree->nodes, node);
  blender::bke::node_unique_id(*ntree, *node);
 
  /* Manual initialization of the node,
   * node->typeinfo is only set after versioning. */
  node->type_legacy = type;
  {
    if (ntree->typeinfo && ntree->typeinfo->node_add_init) {
      ntree->typeinfo->node_add_init(ntree, node);
    }
 
    /* Add sockets without relying on declarations or typeinfo.
     * These are stubs for links, full typeinfo is defined later. */
    LISTBASE_FOREACH (bNodeSocket *, tree_socket, ntree_socket_list) {
      bNodeSocket *node_socket = version_make_socket_stub(tree_socket->idname,
                                                          eNodeSocketDatatype(tree_socket->type),
                                                          socket_in_out,
                                                          tree_socket->identifier,
                                                          tree_socket->name,
                                                          tree_socket->default_value,
                                                          tree_socket->prop);
 
      BLI_addtail(node_socket_list, node_socket);
      BKE_ntree_update_tag_socket_type(ntree, node_socket);
      BKE_ntree_update_tag_socket_new(ntree, node_socket);
    }
  }
  BKE_ntree_update_tag_node_new(ntree, node);
  return node;
}
 
/* NOLINTNEXTLINE: readability-function-size */
void blo_do_versions_260(FileData *fd, Library * /*lib*/, Main *bmain)
{
  if (bmain->versionfile < 260) {
    {
      /* set default alpha value of Image outputs in image and render layer nodes to 0 */
      CLANG_FORMAT_NOP_WORKAROUND;
      LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
        /* there are files with invalid audio_channels value, the real cause
         * is unknown, but we fix it here anyway to avoid crashes */
        if (sce->r.ffcodecdata.audio_channels == 0) {
          sce->r.ffcodecdata.audio_channels = 2;
        }
 
        if (sce->nodetree) {
          do_versions_nodetree_image_default_alpha_output(sce->nodetree);
        }
      }
 
      LISTBASE_FOREACH (bNodeTree *, ntree, &bmain->nodetrees) {
        do_versions_nodetree_image_default_alpha_output(ntree);
      }
    }
 
    {
      /* Support old particle dupli-object rotation settings. */
      LISTBASE_FOREACH (ParticleSettings *, part, &bmain->particles) {
        if (ELEM(part->ren_as, PART_DRAW_OB, PART_DRAW_GR)) {
          part->draw |= PART_DRAW_ROTATE_OB;
 
          if (part->rotmode == 0) {
            part->rotmode = PART_ROT_VEL;
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 260, 1)) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      ob->collision_boundtype = ob->boundtype;
    }
 
    {
      LISTBASE_FOREACH (Camera *, cam, &bmain->cameras) {
        if (cam->sensor_x < 0.01f) {
          cam->sensor_x = DEFAULT_SENSOR_WIDTH;
        }
 
        if (cam->sensor_y < 0.01f) {
          cam->sensor_y = DEFAULT_SENSOR_HEIGHT;
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 260, 2)) {
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_SHADER) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == SH_NODE_MAPPING) {
            TexMapping *tex_mapping = static_cast<TexMapping *>(node->storage);
            tex_mapping->projx = PROJ_X;
            tex_mapping->projy = PROJ_Y;
            tex_mapping->projz = PROJ_Z;
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 260, 4)) {
    {
      /* Convert node angles to radians! */
      CLANG_FORMAT_NOP_WORKAROUND;
      LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
        if (sce->nodetree) {
          do_versions_nodetree_convert_angle(sce->nodetree);
        }
      }
 
      LISTBASE_FOREACH (Material *, mat, &bmain->materials) {
        if (mat->nodetree) {
          do_versions_nodetree_convert_angle(mat->nodetree);
        }
      }
 
      LISTBASE_FOREACH (bNodeTree *, ntree, &bmain->nodetrees) {
        do_versions_nodetree_convert_angle(ntree);
      }
    }
 
    {
      /* Tomato compatibility code. */
      CLANG_FORMAT_NOP_WORKAROUND;
      LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
            if (sl->spacetype == SPACE_VIEW3D) {
              View3D *v3d = (View3D *)sl;
              if (v3d->bundle_size == 0.0f) {
                v3d->bundle_size = 0.2f;
                v3d->flag2 |= V3D_SHOW_RECONSTRUCTION;
              }
 
              if (v3d->bundle_drawtype == 0) {
                v3d->bundle_drawtype = OB_PLAINAXES;
              }
            }
            else if (sl->spacetype == SPACE_CLIP) {
              SpaceClip *sclip = (SpaceClip *)sl;
              if (sclip->scopes.track_preview_height == 0) {
                sclip->scopes.track_preview_height = 120;
              }
            }
          }
        }
      }
 
      LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
        if (clip->aspx < 1.0f) {
          clip->aspx = 1.0f;
          clip->aspy = 1.0f;
        }
 
        clip->proxy.build_tc_flag = IMB_TC_RECORD_RUN;
 
        if (clip->proxy.build_size_flag == 0) {
          clip->proxy.build_size_flag = IMB_PROXY_25;
        }
 
        if (clip->proxy.quality == 0) {
          clip->proxy.quality = 90;
        }
 
        if (clip->tracking.camera.pixel_aspect < 0.01f) {
          clip->tracking.camera.pixel_aspect = 1.0f;
        }
 
        MovieTrackingTrack *track = static_cast<MovieTrackingTrack *>(
            clip->tracking.tracks_legacy.first);
        while (track) {
          if (track->minimum_correlation == 0.0f) {
            track->minimum_correlation = 0.75f;
          }
 
          track = static_cast<MovieTrackingTrack *>(track->next);
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 260, 6)) {
    LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
      do_versions_image_settings_2_60(sce);
    }
 
    LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
      MovieTrackingSettings *settings = &clip->tracking.settings;
 
      if (settings->default_pattern_size == 0.0f) {
        settings->default_motion_model = TRACK_MOTION_MODEL_TRANSLATION;
        settings->default_minimum_correlation = 0.75;
        settings->default_pattern_size = 11;
        settings->default_search_size = 51;
      }
    }
 
    {
      LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
        /* convert delta addition into delta scale */
        int i;
        for (i = 0; i < 3; i++) {
          if ((ob->dsize[i] == 0.0f) || /* simple case, user never touched dsize */
              (ob->scale[i] == 0.0f))   /* can't scale the dsize to give a non zero result,
                                         * so fallback to 1.0f */
          {
            ob->dscale[i] = 1.0f;
          }
          else {
            ob->dscale[i] = (ob->scale[i] + ob->dsize[i]) / ob->scale[i];
          }
        }
      }
    }
  }
  /* sigh, this dscale vs dsize version patching was not done right, fix for fix,
   * this intentionally checks an exact subversion, also note this was never in a release,
   * at some point this could be removed. */
  else if (bmain->versionfile == 260 && bmain->subversionfile == 6) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      if (is_zero_v3(ob->dscale)) {
        copy_vn_fl(ob->dscale, 3, 1.0f);
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 260, 8)) {
    LISTBASE_FOREACH (Brush *, brush, &bmain->brushes) {
      if (brush->sculpt_brush_type == SCULPT_BRUSH_TYPE_ROTATE) {
        brush->alpha = 1.0f;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 261, 1)) {
    {
      /* update use flags for node sockets (was only temporary before) */
      CLANG_FORMAT_NOP_WORKAROUND;
      LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
        if (sce->nodetree) {
          do_versions_nodetree_socket_use_flags_2_62(sce->nodetree);
        }
      }
 
      LISTBASE_FOREACH (Material *, mat, &bmain->materials) {
        if (mat->nodetree) {
          do_versions_nodetree_socket_use_flags_2_62(mat->nodetree);
        }
      }
 
      LISTBASE_FOREACH (Tex *, tex, &bmain->textures) {
        if (tex->nodetree) {
          do_versions_nodetree_socket_use_flags_2_62(tex->nodetree);
        }
      }
 
      LISTBASE_FOREACH (Light *, la, &bmain->lights) {
        if (la->nodetree) {
          do_versions_nodetree_socket_use_flags_2_62(la->nodetree);
        }
      }
 
      LISTBASE_FOREACH (World *, world, &bmain->worlds) {
        if (world->nodetree) {
          do_versions_nodetree_socket_use_flags_2_62(world->nodetree);
        }
      }
 
      LISTBASE_FOREACH (bNodeTree *, ntree, &bmain->nodetrees) {
        do_versions_nodetree_socket_use_flags_2_62(ntree);
      }
    }
    {
      LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
        MovieTracking *tracking = &clip->tracking;
        MovieTrackingObject *tracking_object = static_cast<MovieTrackingObject *>(
            tracking->objects.first);
 
        clip->proxy.build_tc_flag |= IMB_TC_RECORD_RUN_NO_GAPS;
 
        if (!tracking->settings.object_distance) {
          tracking->settings.object_distance = 1.0f;
        }
 
        if (BLI_listbase_is_empty(&tracking->objects)) {
          BKE_tracking_object_add(tracking, "Camera");
        }
 
        while (tracking_object) {
          if (!tracking_object->scale) {
            tracking_object->scale = 1.0f;
          }
 
          tracking_object = static_cast<MovieTrackingObject *>(tracking_object->next);
        }
      }
 
      LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
        LISTBASE_FOREACH (bConstraint *, con, &ob->constraints) {
          if (con->type == CONSTRAINT_TYPE_OBJECTSOLVER) {
            bObjectSolverConstraint *data = static_cast<bObjectSolverConstraint *>(con->data);
 
            if (data->invmat[3][3] == 0.0f) {
              unit_m4(data->invmat);
            }
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 261, 2)) {
    {
      /* convert deprecated sculpt_paint_unified_* fields to
       * UnifiedPaintSettings */
      LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
        ToolSettings *ts = scene->toolsettings;
        UnifiedPaintSettings *ups = &ts->unified_paint_settings;
        ups->size = ts->sculpt_paint_unified_size;
        ups->unprojected_radius = ts->sculpt_paint_unified_unprojected_radius;
        ups->alpha = ts->sculpt_paint_unified_alpha;
        ups->flag = ts->sculpt_paint_settings;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 261, 3)) {
    {
      /* Convert extended ASCII to UTF8 for text editor. */
      CLANG_FORMAT_NOP_WORKAROUND;
      LISTBASE_FOREACH (Text *, text, &bmain->texts) {
        if (!(text->flags & TXT_ISEXT)) {
          LISTBASE_FOREACH (TextLine *, tl, &text->lines) {
            int added = txt_extended_ascii_as_utf8(&tl->line);
            tl->len += added;
 
            /* reset cursor position if line was changed */
            if (added && tl == text->curl) {
              text->curc = 0;
            }
          }
        }
      }
    }
    {
      /* set new dynamic paint values */
      LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
          if (md->type == eModifierType_DynamicPaint) {
            DynamicPaintModifierData *pmd = (DynamicPaintModifierData *)md;
            if (pmd->canvas) {
              DynamicPaintSurface *surface = static_cast<DynamicPaintSurface *>(
                  pmd->canvas->surfaces.first);
              for (; surface; surface = static_cast<DynamicPaintSurface *>(surface->next)) {
                surface->color_dry_threshold = 1.0f;
                surface->influence_scale = 1.0f;
                surface->radius_scale = 1.0f;
                surface->flags |= MOD_DPAINT_USE_DRYING;
              }
            }
          }
        }
      }
    }
  }
 
  if (bmain->versionfile < 262) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
        if (md->type == eModifierType_Cloth) {
          ClothModifierData *clmd = (ClothModifierData *)md;
          if (clmd->sim_parms) {
            clmd->sim_parms->vel_damping = 1.0f;
          }
        }
      }
    }
  }
 
  if (bmain->versionfile < 263) {
    /* set fluidsim rate. the version patch for this in 2.62 was wrong, so
     * try to correct it, if rate is 0.0 that's likely not intentional */
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
        if (md->type == eModifierType_Fluidsim) {
          FluidsimModifierData *fmd = (FluidsimModifierData *)md;
          if (fmd->fss->animRate == 0.0f) {
            fmd->fss->animRate = 1.0f;
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 262, 1)) {
    /* update use flags for node sockets (was only temporary before) */
    LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
      if (sce->nodetree) {
        do_versions_nodetree_multi_file_output_format_2_62_1(sce, sce->nodetree);
      }
    }
 
    /* XXX can't associate with scene for group nodes, image format will stay uninitialized */
    LISTBASE_FOREACH (bNodeTree *, ntree, &bmain->nodetrees) {
      do_versions_nodetree_multi_file_output_format_2_62_1(nullptr, ntree);
    }
  }
 
  /* only swap for pre-release bmesh merge which had MLoopCol red/blue swap */
  if (bmain->versionfile == 262 && bmain->subversionfile == 1) {
    {
      LISTBASE_FOREACH (Mesh *, me, &bmain->meshes) {
        do_versions_mesh_mloopcol_swap_2_62_1(me);
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 262, 2)) {
    /* Set new idname of keyingsets from their now "label-only" name. */
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      LISTBASE_FOREACH (KeyingSet *, ks, &scene->keyingsets) {
        if (!ks->idname[0]) {
          STRNCPY(ks->idname, ks->name);
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 262, 3)) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
        if (md->type == eModifierType_Lattice) {
          LatticeModifierData *lmd = (LatticeModifierData *)md;
          lmd->strength = 1.0f;
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 262, 4)) {
    /* Read Viscosity presets from older files */
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
        if (md->type == eModifierType_Fluidsim) {
          FluidsimModifierData *fmd = (FluidsimModifierData *)md;
          if (fmd->fss->viscosityMode == 3) {
            fmd->fss->viscosityValue = 5.0;
            fmd->fss->viscosityExponent = 5;
          }
          else if (fmd->fss->viscosityMode == 4) {
            fmd->fss->viscosityValue = 2.0;
            fmd->fss->viscosityExponent = 3;
          }
        }
      }
    }
  }
 
  if (bmain->versionfile < 263) {
    /* Default for old files is to save particle rotations to pointcache */
    LISTBASE_FOREACH (ParticleSettings *, part, &bmain->particles) {
      part->flag |= PART_ROTATIONS;
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 1)) {
    /* file output node paths are now stored in the file info struct instead socket name */
    LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
      if (sce->nodetree) {
        do_versions_nodetree_multi_file_output_path_2_63_1(sce->nodetree);
      }
    }
    LISTBASE_FOREACH (bNodeTree *, ntree, &bmain->nodetrees) {
      do_versions_nodetree_multi_file_output_path_2_63_1(ntree);
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 3)) {
    /* For weight paint, each brush now gets its own weight;
     * unified paint settings also have weight. Update unified
     * paint settings and brushes with a default weight value. */
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      ToolSettings *ts = scene->toolsettings;
      if (ts) {
        ts->unified_paint_settings.weight = ts->vgroup_weight;
        ts->unified_paint_settings.flag |= UNIFIED_PAINT_WEIGHT;
      }
    }
 
    LISTBASE_FOREACH (Brush *, brush, &bmain->brushes) {
      brush->weight = 0.5;
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 2)) {
    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
          if (sl->spacetype == SPACE_CLIP) {
            SpaceClip *sclip = (SpaceClip *)sl;
            bool hide = false;
 
            LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
              if (region->regiontype == RGN_TYPE_PREVIEW) {
                if (region->alignment != RGN_ALIGN_NONE) {
                  region->flag |= RGN_FLAG_HIDDEN;
                  region->v2d.flag &= ~V2D_IS_INIT;
                  region->alignment = RGN_ALIGN_NONE;
 
                  hide = true;
                }
              }
            }
 
            if (hide) {
              sclip->view = SC_VIEW_CLIP;
            }
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 4)) {
    LISTBASE_FOREACH (Camera *, cam, &bmain->cameras) {
      if (cam->flag & CAM_PANORAMA) {
        cam->type = CAM_PANO;
        cam->flag &= ~CAM_PANORAMA;
      }
    }
 
    LISTBASE_FOREACH (Curve *, cu, &bmain->curves) {
      if (cu->bevfac2 == 0.0f) {
        cu->bevfac1 = 0.0f;
        cu->bevfac2 = 1.0f;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 5)) {
    {
      /* file output node paths are now stored in the file info struct instead socket name */
      LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
        if (sce->nodetree) {
          do_versions_nodetree_file_output_layers_2_64_5(sce->nodetree);
          do_versions_nodetree_image_layer_2_64_5(sce->nodetree);
        }
      }
      LISTBASE_FOREACH (bNodeTree *, ntree, &bmain->nodetrees) {
        do_versions_nodetree_file_output_layers_2_64_5(ntree);
        do_versions_nodetree_image_layer_2_64_5(ntree);
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 6)) {
    /* update use flags for node sockets (was only temporary before) */
    LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
      if (sce->nodetree) {
        do_versions_nodetree_frame_2_64_6(sce->nodetree);
      }
    }
 
    LISTBASE_FOREACH (Material *, mat, &bmain->materials) {
      if (mat->nodetree) {
        do_versions_nodetree_frame_2_64_6(mat->nodetree);
      }
    }
 
    LISTBASE_FOREACH (Tex *, tex, &bmain->textures) {
      if (tex->nodetree) {
        do_versions_nodetree_frame_2_64_6(tex->nodetree);
      }
    }
 
    LISTBASE_FOREACH (Light *, la, &bmain->lights) {
      if (la->nodetree) {
        do_versions_nodetree_frame_2_64_6(la->nodetree);
      }
    }
 
    LISTBASE_FOREACH (World *, world, &bmain->worlds) {
      if (world->nodetree) {
        do_versions_nodetree_frame_2_64_6(world->nodetree);
      }
    }
 
    LISTBASE_FOREACH (bNodeTree *, ntree, &bmain->nodetrees) {
      do_versions_nodetree_frame_2_64_6(ntree);
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 7)) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
        if (md->type == eModifierType_Fluid) {
          FluidModifierData *fmd = (FluidModifierData *)md;
          if ((fmd->type & MOD_FLUID_TYPE_DOMAIN) && fmd->domain) {
            int maxres = max_iii(fmd->domain->res[0], fmd->domain->res[1], fmd->domain->res[2]);
            fmd->domain->scale = fmd->domain->dx * maxres;
            fmd->domain->dx = 1.0f / fmd->domain->scale;
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 9)) {
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_SHADER) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (ELEM(node->type_legacy, SH_NODE_TEX_IMAGE, SH_NODE_TEX_ENVIRONMENT)) {
            NodeTexImage *tex = static_cast<NodeTexImage *>(node->storage);
 
            tex->iuser.frames = 1;
            tex->iuser.sfra = 1;
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 10)) {
    {
      /* composite redesign */
      FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
        if (ntree->type == NTREE_COMPOSIT) {
          LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
            if (node->type_legacy == CMP_NODE_DEFOCUS) {
              NodeDefocus *data = static_cast<NodeDefocus *>(node->storage);
              if (data->maxblur == 0.0f) {
                data->maxblur = 16.0f;
              }
            }
          }
        }
      }
      FOREACH_NODETREE_END;
    }
 
    {
      CLANG_FORMAT_NOP_WORKAROUND;
      LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
            if (sl->spacetype == SPACE_CLIP) {
              SpaceClip *sclip = (SpaceClip *)sl;
 
              if (sclip->around == 0) {
                sclip->around = V3D_AROUND_CENTER_MEDIAN;
              }
            }
          }
        }
      }
    }
 
    {
      LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
        clip->start_frame = 1;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 11)) {
    LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
      MovieTrackingTrack *track = static_cast<MovieTrackingTrack *>(
          clip->tracking.tracks_legacy.first);
      while (track) {
        do_versions_affine_tracker_track(track);
 
        track = static_cast<MovieTrackingTrack *>(track->next);
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 13)) {
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_COMPOSIT) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == CMP_NODE_DILATEERODE) {
            if (node->storage == nullptr) {
              NodeDilateErode *data = MEM_callocN<NodeDilateErode>(__func__);
              data->falloff = PROP_SMOOTH;
              node->storage = data;
            }
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 14)) {
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_COMPOSIT) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == CMP_NODE_KEYING) {
            NodeKeyingData *data = static_cast<NodeKeyingData *>(node->storage);
 
            if (data->despill_balance == 0.0f) {
              data->despill_balance = 0.5f;
            }
          }
        }
      }
    }
    FOREACH_NODETREE_END;
 
    /* Keep compatibility for dupli-object particle size. */
    LISTBASE_FOREACH (ParticleSettings *, part, &bmain->particles) {
      if (ELEM(part->ren_as, PART_DRAW_OB, PART_DRAW_GR)) {
        if ((part->draw & PART_DRAW_ROTATE_OB) == 0) {
          part->draw |= PART_DRAW_NO_SCALE_OB;
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 17)) {
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_COMPOSIT) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == CMP_NODE_MASK) {
            if (node->storage == nullptr) {
              NodeMask *data = MEM_callocN<NodeMask>(__func__);
              /* move settings into own struct */
              data->size_x = int(node->custom3);
              data->size_y = int(node->custom4);
              node->custom3 = 0.5f; /* default shutter */
              node->storage = data;
            }
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 18)) {
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      if (scene->ed) {
        blender::seq::for_each_callback(
            &scene->ed->seqbase, strip_colorbalance_update_cb, nullptr);
      }
    }
  }
 
  /* color management pipeline changes compatibility code */
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 19)) {
    bool colormanagement_disabled = false;
 
    /* make scenes which are not using color management have got None as display device,
     * so they wouldn't perform linear-to-sRGB conversion on display
     */
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      if ((scene->r.color_mgt_flag & R_COLOR_MANAGEMENT) == 0) {
        ColorManagedDisplaySettings *display_settings = &scene->display_settings;
 
        if (display_settings->display_device[0] == 0) {
          BKE_scene_disable_color_management(scene);
        }
 
        colormanagement_disabled = true;
      }
    }
 
    LISTBASE_FOREACH (Image *, ima, &bmain->images) {
      if (ima->source == IMA_SRC_VIEWER) {
        ima->flag |= IMA_VIEW_AS_RENDER;
      }
      else if (colormanagement_disabled) {
        /* if color-management not used, set image's color space to raw, so no sRGB->linear
         * conversion would happen on display and render there's no clear way to check whether
         * color management is enabled or not in render engine so set all images to raw if there's
         * at least one scene with color management disabled this would still behave incorrect in
         * cases when color management was used for only some of scenes, but such a setup is
         * crazy anyway and think it's fair enough to break compatibility in that cases.
         */
 
        STRNCPY(ima->colorspace_settings.name, "Raw");
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 20)) {
    LISTBASE_FOREACH (Key *, key, &bmain->shapekeys) {
      blo_do_versions_key_uidgen(key);
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 263, 21)) {
    {
      LISTBASE_FOREACH (Mesh *, me, &bmain->meshes) {
        CustomData_update_typemap(&me->vert_data);
        CustomData_free_layers(&me->vert_data, CD_MSTICKY);
      }
    }
  }
 
  /* correction for files saved in blender version when BKE_pose_copy_data
   * didn't copy animation visualization, which lead to deadlocks on motion
   * path calculation for proxied armatures, see #32742.
   */
  if (bmain->versionfile < 264) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      if (ob->pose) {
        if (ob->pose->avs.path_step == 0) {
          animviz_settings_init(&ob->pose->avs);
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 264, 1)) {
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_SHADER) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == SH_NODE_TEX_COORD) {
            node->flag |= NODE_OPTIONS;
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 264, 2)) {
    LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
      MovieTracking *tracking = &clip->tracking;
      LISTBASE_FOREACH (MovieTrackingObject *, tracking_object, &tracking->objects) {
        if (tracking_object->keyframe1 == 0 && tracking_object->keyframe2 == 0) {
          tracking_object->keyframe1 = tracking->settings.keyframe1_legacy;
          tracking_object->keyframe2 = tracking->settings.keyframe2_legacy;
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 264, 3)) {
    /* smoke branch */
    {
      CLANG_FORMAT_NOP_WORKAROUND;
      LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
          if (md->type == eModifierType_Fluid) {
            FluidModifierData *fmd = (FluidModifierData *)md;
            if ((fmd->type & MOD_FLUID_TYPE_DOMAIN) && fmd->domain) {
              /* keep branch saves if possible */
              if (!fmd->domain->flame_max_temp) {
                fmd->domain->burning_rate = 0.75f;
                fmd->domain->flame_smoke = 1.0f;
                fmd->domain->flame_vorticity = 0.5f;
                fmd->domain->flame_ignition = 1.25f;
                fmd->domain->flame_max_temp = 1.75f;
                fmd->domain->adapt_threshold = 0.02f;
                fmd->domain->adapt_margin = 4;
                fmd->domain->flame_smoke_color[0] = 0.7f;
                fmd->domain->flame_smoke_color[1] = 0.7f;
                fmd->domain->flame_smoke_color[2] = 0.7f;
              }
            }
            else if ((fmd->type & MOD_FLUID_TYPE_FLOW) && fmd->flow) {
              if (!fmd->flow->texture_size) {
                fmd->flow->fuel_amount = 1.0;
                fmd->flow->surface_distance = 1.5;
                fmd->flow->color[0] = 0.7f;
                fmd->flow->color[1] = 0.7f;
                fmd->flow->color[2] = 0.7f;
                fmd->flow->texture_size = 1.0f;
              }
            }
          }
        }
      }
    }
 
    /* render border for viewport */
    {
      LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
            if (sl->spacetype == SPACE_VIEW3D) {
              View3D *v3d = (View3D *)sl;
              if (v3d->render_border.xmin == 0.0f && v3d->render_border.ymin == 0.0f &&
                  v3d->render_border.xmax == 0.0f && v3d->render_border.ymax == 0.0f)
              {
                v3d->render_border.xmax = 1.0f;
                v3d->render_border.ymax = 1.0f;
              }
            }
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 264, 5)) {
    /* set a unwrapping margin and ABF by default */
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      if (scene->toolsettings->uvcalc_margin == 0.0f) {
        scene->toolsettings->uvcalc_margin = 0.001f;
        scene->toolsettings->unwrapper = UVCALC_UNWRAP_METHOD_ANGLE;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 264, 7)) {
    /* convert tiles size from resolution and number of tiles */
    {
      CLANG_FORMAT_NOP_WORKAROUND;
      LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
        if (scene->r.tilex == 0 || scene->r.tiley == 1) {
          scene->r.tilex = scene->r.tiley = 64;
        }
      }
    }
 
    /* collision masks */
    {
      LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
        if (ob->col_group == 0) {
          ob->col_group = 0x01;
          ob->col_mask = 0xff;
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 264, 7)) {
    LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
      LISTBASE_FOREACH (MovieTrackingTrack *, track, &clip->tracking.tracks_legacy) {
        do_versions_affine_tracker_track(track);
      }
 
      LISTBASE_FOREACH (MovieTrackingObject *, tracking_object, &clip->tracking.objects) {
        LISTBASE_FOREACH (MovieTrackingTrack *, track, &tracking_object->tracks) {
          do_versions_affine_tracker_track(track);
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 265, 3)) {
    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
          switch (sl->spacetype) {
            case SPACE_VIEW3D: {
              View3D *v3d = (View3D *)sl;
              v3d->flag2 |= V3D_SHOW_ANNOTATION;
              break;
            }
            case SPACE_SEQ: {
              SpaceSeq *sseq = (SpaceSeq *)sl;
              sseq->flag |= SEQ_PREVIEW_SHOW_GPENCIL;
              break;
            }
            case SPACE_IMAGE: {
              SpaceImage *sima = (SpaceImage *)sl;
              sima->flag |= SI_SHOW_GPENCIL;
              break;
            }
            case SPACE_NODE: {
              SpaceNode *snode = (SpaceNode *)sl;
              snode->flag |= SNODE_SHOW_GPENCIL;
              break;
            }
            case SPACE_CLIP: {
              SpaceClip *sclip = (SpaceClip *)sl;
              sclip->flag |= SC_SHOW_ANNOTATION;
              break;
            }
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 265, 5)) {
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      if (scene->ed) {
        blender::seq::for_each_callback(&scene->ed->seqbase, strip_set_alpha_mode_cb, nullptr);
      }
 
      if (scene->r.bake_samples == 0) {
        scene->r.bake_samples = 256;
      }
    }
 
    LISTBASE_FOREACH (Image *, image, &bmain->images) {
      if (image->flag & IMA_DO_PREMUL) {
        image->alpha_mode = IMA_ALPHA_STRAIGHT;
      }
      else {
        BKE_image_alpha_mode_from_extension(image);
      }
    }
 
    LISTBASE_FOREACH (Tex *, tex, &bmain->textures) {
      if (tex->type == TEX_IMAGE && (tex->imaflag & TEX_USEALPHA) == 0) {
        Image *image = static_cast<Image *>(
            blo_do_versions_newlibadr(fd, &tex->id, ID_IS_LINKED(tex), tex->ima));
 
        if (image && (image->flag & IMA_DO_PREMUL) == 0) {
          enum { IMA_IGNORE_ALPHA = (1 << 12) };
          image->flag |= IMA_IGNORE_ALPHA;
        }
      }
    }
 
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_COMPOSIT) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == CMP_NODE_IMAGE) {
            Image *image = static_cast<Image *>(
                blo_do_versions_newlibadr(fd, &ntree->id, ID_IS_LINKED(ntree), node->id));
 
            if (image) {
              if ((image->flag & IMA_DO_PREMUL) == 0 && image->alpha_mode == IMA_ALPHA_STRAIGHT) {
                node->custom1 |= CMP_NODE_IMAGE_USE_STRAIGHT_OUTPUT;
              }
            }
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
  else if (!MAIN_VERSION_FILE_ATLEAST(bmain, 266, 1)) {
    /* texture use alpha was removed for 2.66 but added back again for 2.66a,
     * for compatibility all textures assumed it to be enabled */
    LISTBASE_FOREACH (Tex *, tex, &bmain->textures) {
      if (tex->type == TEX_IMAGE) {
        tex->imaflag |= TEX_USEALPHA;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 265, 7)) {
    LISTBASE_FOREACH (Curve *, cu, &bmain->curves) {
      if (cu->flag & (CU_FRONT | CU_BACK)) {
        if (cu->extrude != 0.0f || cu->bevel_radius != 0.0f) {
          LISTBASE_FOREACH (Nurb *, nu, &cu->nurb) {
            int a;
 
            if (nu->bezt) {
              BezTriple *bezt = nu->bezt;
              a = nu->pntsu;
 
              while (a--) {
                bezt->radius = 1.0f;
                bezt++;
              }
            }
            else if (nu->bp) {
              BPoint *bp = nu->bp;
              a = nu->pntsu * nu->pntsv;
 
              while (a--) {
                bp->radius = 1.0f;
                bp++;
              }
            }
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 265, 9)) {
    LISTBASE_FOREACH (Mesh *, me, &bmain->meshes) {
      BKE_mesh_do_versions_cd_flag_init(me);
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 265, 10)) {
    LISTBASE_FOREACH (Brush *, br, &bmain->brushes) {
      if (br->ob_mode & OB_MODE_TEXTURE_PAINT) {
        br->mtex.brush_map_mode = MTEX_MAP_MODE_TILED;
      }
    }
  }
 
  /* add storage for compositor translate nodes when not existing */
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 265, 11)) {
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_COMPOSIT) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == CMP_NODE_TRANSLATE && node->storage == nullptr) {
            node->storage = MEM_callocN<NodeTranslateData>("node translate data");
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 266, 2)) {
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      do_versions_nodetree_customnodes(ntree, ((ID *)ntree == id));
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 266, 2)) {
    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
          if (sl->spacetype == SPACE_NODE) {
            SpaceNode *snode = (SpaceNode *)sl;
 
            /* reset pointers to force tree path update from context */
            snode->nodetree = nullptr;
            snode->edittree = nullptr;
            snode->id = nullptr;
            snode->from = nullptr;
 
            /* convert deprecated treetype setting to tree_idname */
            switch (snode->treetype) {
              case NTREE_COMPOSIT:
                STRNCPY(snode->tree_idname, "CompositorNodeTree");
                break;
              case NTREE_SHADER:
                STRNCPY(snode->tree_idname, "ShaderNodeTree");
                break;
              case NTREE_TEXTURE:
                STRNCPY(snode->tree_idname, "TextureNodeTree");
                break;
            }
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 266, 3)) {
    {
      /* Fix for a very old issue:
       * Node names were nominally made unique in r24478 (2.50.8), but the do_versions check
       * to update existing node names only applied to `bmain->nodetree` (i.e. group nodes).
       * Uniqueness is now required for proper preview mapping,
       * so do this now to ensure old files don't break.
       */
      FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
        if (id == &ntree->id) {
          continue; /* already fixed for node groups */
        }
 
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          blender::bke::node_unique_name(*ntree, *node);
        }
      }
      FOREACH_NODETREE_END;
    }
 
    /* Convert the previously used ntree->inputs/ntree->outputs lists to interface nodes.
     * Pre 2.56.2 node trees automatically have all unlinked sockets exposed already,
     * see do_versions_after_linking_250.
     *
     * This assumes valid typeinfo pointers, as set in lib_link_ntree.
     *
     * NOTE: theoretically only needed in node groups (main->nodetree),
     * but due to a temporary bug such links could have been added in all trees,
     * so have to clean up all of them ...
     *
     * NOTE: this always runs, without it links with nullptr fromnode and tonode remain
     * which causes problems.
     */
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      bNode *input_node = nullptr, *output_node = nullptr;
      int num_inputs = 0, num_outputs = 0;
      bNodeLink *link, *next_link;
      /* Only create new interface nodes for actual older files.
       * New file versions already have input/output nodes with duplicate links,
       * in that case just remove the invalid links.
       */
      const bool create_io_nodes = MAIN_VERSION_FILE_OLDER(bmain, 266, 2);
 
      float input_locx = 1000000.0f, input_locy = 0.0f;
      float output_locx = -1000000.0f, output_locy = 0.0f;
      /* Rough guess, not nice but we don't have access to UI constants here. */
      const float offsetx = 42 + 3 * 20 + 20;
      // const float offsety = 0.0f;
 
      if (create_io_nodes) {
        if (ntree->inputs_legacy.first) {
          input_node = version_add_group_in_out_node(ntree, NODE_GROUP_INPUT);
        }
 
        if (ntree->outputs_legacy.first) {
          output_node = version_add_group_in_out_node(ntree, NODE_GROUP_OUTPUT);
        }
      }
 
      /* Redirect links from/to the node tree interface to input/output node.
       * If the fromnode/tonode pointers are nullptr, this means a link from/to
       * the ntree interface sockets, which need to be redirected to new interface nodes.
       */
      for (link = static_cast<bNodeLink *>(ntree->links.first); link != nullptr; link = next_link)
      {
        bool free_link = false;
        next_link = link->next;
 
        if (link->fromnode == nullptr) {
          if (input_node) {
            link->fromnode = input_node;
            link->fromsock = node_group_input_find_socket(input_node, link->fromsock->identifier);
            BLI_assert(link->fromsock != nullptr);
            num_inputs++;
 
            if (link->tonode) {
              input_locx = std::min(input_locx, link->tonode->locx_legacy - offsetx);
              input_locy += link->tonode->locy_legacy;
            }
          }
          else {
            free_link = true;
          }
        }
 
        if (link->tonode == nullptr) {
          if (output_node) {
            link->tonode = output_node;
            link->tosock = node_group_output_find_socket(output_node, link->tosock->identifier);
            BLI_assert(link->tosock != nullptr);
            num_outputs++;
 
            if (link->fromnode) {
              output_locx = std::max(output_locx, link->fromnode->locx_legacy + offsetx);
              output_locy += link->fromnode->locy_legacy;
            }
          }
          else {
            free_link = true;
          }
        }
 
        if (free_link) {
          blender::bke::node_remove_link(ntree, *link);
        }
      }
 
      if (num_inputs > 0) {
        input_locy /= num_inputs;
        input_node->locx_legacy = input_locx;
        input_node->locy_legacy = input_locy;
      }
      if (num_outputs > 0) {
        output_locy /= num_outputs;
        output_node->locx_legacy = output_locx;
        output_node->locy_legacy = output_locy;
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 280, 60)) {
    /* From this point we no longer write incomplete links for forward
     * compatibility with 2.66, we have to clean them up for all previous
     * versions. */
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      bNodeLink *link, *next_link;
 
      for (link = static_cast<bNodeLink *>(ntree->links.first); link != nullptr; link = next_link)
      {
        next_link = link->next;
        if (link->fromnode == nullptr || link->tonode == nullptr) {
          blender::bke::node_remove_link(ntree, *link);
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 266, 4)) {
    LISTBASE_FOREACH (Brush *, brush, &bmain->brushes) {
      BKE_texture_mtex_default(&brush->mask_mtex);
 
      if (brush->ob_mode & OB_MODE_TEXTURE_PAINT) {
        brush->spacing /= 2;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 266, 6)) {
#define BRUSH_TEXTURE_OVERLAY (1 << 21)
 
    LISTBASE_FOREACH (Brush *, brush, &bmain->brushes) {
      brush->overlay_flags = 0;
      if (brush->flag & BRUSH_TEXTURE_OVERLAY) {
        brush->overlay_flags |= (BRUSH_OVERLAY_PRIMARY | BRUSH_OVERLAY_CURSOR);
      }
    }
#undef BRUSH_TEXTURE_OVERLAY
  }
 
  if (bmain->versionfile < 267) {
    // if (!DNA_struct_member_exists(fd->filesdna, "Brush", "int", "stencil_pos")) {
    LISTBASE_FOREACH (Brush *, brush, &bmain->brushes) {
      if (brush->stencil_dimension[0] == 0) {
        brush->stencil_dimension[0] = 256;
        brush->stencil_dimension[1] = 256;
        brush->stencil_pos[0] = 256;
        brush->stencil_pos[1] = 256;
      }
      if (brush->mask_stencil_dimension[0] == 0) {
        brush->mask_stencil_dimension[0] = 256;
        brush->mask_stencil_dimension[1] = 256;
        brush->mask_stencil_pos[0] = 256;
        brush->mask_stencil_pos[1] = 256;
      }
    }

  }
 
  /* default values in Freestyle settings */
  if (bmain->versionfile < 267) {
    LISTBASE_FOREACH (Scene *, sce, &bmain->scenes) {
      if (sce->r.line_thickness_mode == 0) {
        sce->r.line_thickness_mode = R_LINE_THICKNESS_ABSOLUTE;
        sce->r.unit_line_thickness = 1.0f;
      }
      LISTBASE_FOREACH (SceneRenderLayer *, srl, &sce->r.layers) {
        if (srl->freestyleConfig.mode == 0) {
          srl->freestyleConfig.mode = FREESTYLE_CONTROL_EDITOR_MODE;
        }
        if (ELEM(srl->freestyleConfig.raycasting_algorithm,
                 FREESTYLE_ALGO_CULLED_ADAPTIVE_CUMULATIVE,
                 FREESTYLE_ALGO_CULLED_ADAPTIVE_TRADITIONAL))
        {
          srl->freestyleConfig.raycasting_algorithm = 0; /* deprecated */
          srl->freestyleConfig.flags |= FREESTYLE_CULLING;
        }
      }
 
      /* not freestyle */
      {
        MeshStatVis *statvis = &sce->toolsettings->statvis;
        if (statvis->thickness_samples == 0) {
          statvis->overhang_axis = OB_NEGZ;
          statvis->overhang_min = 0;
          statvis->overhang_max = DEG2RADF(45.0f);
 
          statvis->thickness_max = 0.1f;
          statvis->thickness_samples = 1;
 
          statvis->distort_min = DEG2RADF(5.0f);
          statvis->distort_max = DEG2RADF(45.0f);
 
          statvis->sharp_min = DEG2RADF(90.0f);
          statvis->sharp_max = DEG2RADF(180.0f);
        }
      }
    }
    LISTBASE_FOREACH (FreestyleLineStyle *, linestyle, &bmain->linestyles) {
#if 1
      /* disable the Misc panel for now */
      if (linestyle->panel == LS_PANEL_MISC) {
        linestyle->panel = LS_PANEL_STROKES;
      }
#endif
      if (linestyle->thickness_position == 0) {
        linestyle->thickness_position = LS_THICKNESS_CENTER;
        linestyle->thickness_ratio = 0.5f;
      }
      if (linestyle->chaining == 0) {
        linestyle->chaining = LS_CHAINING_PLAIN;
      }
      if (linestyle->rounds == 0) {
        linestyle->rounds = 3;
      }
    }
  }
 
  if (bmain->versionfile < 267) {
    /* Initialize the active_viewer_key for compositing */
    bNodeInstanceKey active_viewer_key = {0};
    /* simply pick the first node space and use that for the active viewer key */
    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
          if (sl->spacetype == SPACE_NODE) {
            SpaceNode *snode = (SpaceNode *)sl;
            bNodeTreePath *path = static_cast<bNodeTreePath *>(snode->treepath.last);
            if (!path) {
              continue;
            }
 
            active_viewer_key = path->parent_key;
            break;
          }
        }
        if (active_viewer_key.value != 0) {
          break;
        }
      }
      if (active_viewer_key.value != 0) {
        break;
      }
    }
 
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      /* NOTE: `scene->nodetree` is a local ID block, has been direct_link'ed. */
      if (scene->nodetree) {
        scene->nodetree->active_viewer_key = active_viewer_key;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 267, 1)) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
        if (md->type == eModifierType_Fluid) {
          FluidModifierData *fmd = (FluidModifierData *)md;
          if ((fmd->type & MOD_FLUID_TYPE_DOMAIN) && fmd->domain) {
            if (fmd->domain->flags & FLUID_DOMAIN_USE_HIGH_SMOOTH) {
              fmd->domain->highres_sampling = SM_HRES_LINEAR;
            }
            else {
              fmd->domain->highres_sampling = SM_HRES_NEAREST;
            }
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 268, 1)) {
    LISTBASE_FOREACH (Brush *, brush, &bmain->brushes) {
      brush->spacing = std::max(1, brush->spacing);
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 268, 2)) {
#define BRUSH_FIXED (1 << 6)
    LISTBASE_FOREACH (Brush *, brush, &bmain->brushes) {
      brush->flag &= ~BRUSH_FIXED;
 
      if (brush->cursor_overlay_alpha < 2) {
        brush->cursor_overlay_alpha = 33;
      }
      if (brush->texture_overlay_alpha < 2) {
        brush->texture_overlay_alpha = 33;
      }
      if (brush->mask_overlay_alpha < 2) {
        brush->mask_overlay_alpha = 33;
      }
    }
#undef BRUSH_FIXED
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 268, 4)) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (bConstraint *, con, &ob->constraints) {
        if (con->type == CONSTRAINT_TYPE_SHRINKWRAP) {
          bShrinkwrapConstraint *data = static_cast<bShrinkwrapConstraint *>(con->data);
          if (data->projAxis & MOD_SHRINKWRAP_PROJECT_OVER_X_AXIS) {
            data->projAxis = OB_POSX;
          }
          else if (data->projAxis & MOD_SHRINKWRAP_PROJECT_OVER_Y_AXIS) {
            data->projAxis = OB_POSY;
          }
          else {
            data->projAxis = OB_POSZ;
          }
          data->projAxisSpace = CONSTRAINT_SPACE_LOCAL;
        }
      }
    }
 
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
        if (md->type == eModifierType_Fluid) {
          FluidModifierData *fmd = (FluidModifierData *)md;
          if ((fmd->type & MOD_FLUID_TYPE_FLOW) && fmd->flow) {
            if (!fmd->flow->particle_size) {
              fmd->flow->particle_size = 1.0f;
            }
          }
        }
      }
    }
 
    /*
     * FIX some files have a zoom level of 0, and was checked during the drawing of the node space
     *
     * We moved this check to the do versions to be sure the value makes any sense.
     */
    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
          if (sl->spacetype == SPACE_NODE) {
            SpaceNode *snode = (SpaceNode *)sl;
            if (snode->zoom < 0.02f) {
              snode->zoom = 1.0;
            }
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 268, 5)) {
    /* add missing (+) expander in node editor */
    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
        if (area->spacetype == SPACE_NODE) {
          ARegion *region = BKE_area_find_region_type(area, RGN_TYPE_TOOLS);
 
          if (region) {
            continue;
          }
 
          /* add subdiv level; after header */
          region = BKE_area_find_region_type(area, RGN_TYPE_HEADER);
 
          /* is error! */
          if (region == nullptr) {
            continue;
          }
 
          ARegion *arnew = BKE_area_region_new();
 
          BLI_insertlinkafter(&area->regionbase, region, arnew);
          arnew->regiontype = RGN_TYPE_TOOLS;
          arnew->alignment = RGN_ALIGN_LEFT;
 
          arnew->flag = RGN_FLAG_HIDDEN;
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 269, 1)) {
    /* Removal of Cycles SSS Compatible falloff */
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_SHADER) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == SH_NODE_SUBSURFACE_SCATTERING) {
            if (node->custom1 == SHD_SUBSURFACE_COMPATIBLE) {
              node->custom1 = SHD_SUBSURFACE_CUBIC;
            }
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 269, 2)) {
    /* Initialize CDL settings for Color Balance nodes */
    FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
      if (ntree->type == NTREE_COMPOSIT) {
        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
          if (node->type_legacy == CMP_NODE_COLORBALANCE) {
            NodeColorBalance *n = static_cast<NodeColorBalance *>(node->storage);
            if (node->custom1 == 0) {
              /* LGG mode stays the same, just init CDL settings */
              color_balance_node_cdl_from_lgg(node);
            }
            else if (node->custom1 == 1) {
              /* CDL previously used same variables as LGG, copy them over
               * and then sync LGG for comparable results in both modes.
               */
              copy_v3_v3(n->offset, n->lift);
              copy_v3_v3(n->power, n->gamma);
              copy_v3_v3(n->slope, n->gain);
              color_balance_node_lgg_from_cdl(node);
            }
          }
        }
      }
    }
    FOREACH_NODETREE_END;
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 269, 3)) {
    /* Update files using invalid (outdated) outlinevis Outliner values. */
    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
          if (sl->spacetype == SPACE_OUTLINER) {
            SpaceOutliner *space_outliner = (SpaceOutliner *)sl;
 
            if (!ELEM(
                    space_outliner->outlinevis, SO_SCENES, SO_LIBRARIES, SO_SEQUENCE, SO_DATA_API))
            {
              space_outliner->outlinevis = SO_SCENES;
            }
          }
        }
      }
    }
 
    if (!DNA_struct_member_exists(fd->filesdna, "MovieTrackingTrack", "float", "weight")) {
      LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
        const MovieTracking *tracking = &clip->tracking;
        LISTBASE_FOREACH (MovieTrackingObject *, tracking_object, &tracking->objects) {
          const ListBase *tracksbase = (tracking_object->flag & TRACKING_OBJECT_CAMERA) ?
                                           &tracking->tracks_legacy :
                                           &tracking_object->tracks;
          LISTBASE_FOREACH (MovieTrackingTrack *, track, tracksbase) {
            track->weight = 1.0f;
          }
        }
      }
    }
 
    if (!DNA_struct_member_exists(fd->filesdna, "TriangulateModifierData", "int", "quad_method")) {
      LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
          if (md->type == eModifierType_Triangulate) {
            TriangulateModifierData *tmd = (TriangulateModifierData *)md;
            if (tmd->flag & MOD_TRIANGULATE_BEAUTY) {
              tmd->quad_method = MOD_TRIANGULATE_QUAD_BEAUTY;
              tmd->ngon_method = MOD_TRIANGULATE_NGON_BEAUTY;
            }
            else {
              tmd->quad_method = MOD_TRIANGULATE_QUAD_FIXED;
              tmd->ngon_method = MOD_TRIANGULATE_NGON_EARCLIP;
            }
          }
        }
      }
    }
 
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      /* this can now be turned off */
      ToolSettings *ts = scene->toolsettings;
      if (ts->sculpt) {
        ts->sculpt->flags |= SCULPT_DYNTOPO_SUBDIVIDE;
      }
 
      /* 'Increment' mode disabled for nodes, use true grid snapping instead */
      if (scene->toolsettings->snap_node_mode == 0) { /* SCE_SNAP_TO_INCREMENT */
        scene->toolsettings->snap_node_mode = 8;      /* SCE_SNAP_TO_GRID */
      }
 
      /* Update for removed "sound-only" option in FFMPEG export settings. */
      if (scene->r.ffcodecdata.type >= FFMPEG_INVALID) {
        scene->r.ffcodecdata.type = FFMPEG_AVI;
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 269, 4)) {
    /* Internal degrees to radians conversions... */
    {
      LISTBASE_FOREACH (Light *, la, &bmain->lights) {
        la->spotsize = DEG2RADF(la->spotsize);
      }
 
      LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
          if (md->type == eModifierType_EdgeSplit) {
            EdgeSplitModifierData *emd = (EdgeSplitModifierData *)md;
            emd->split_angle = DEG2RADF(emd->split_angle);
          }
          else if (md->type == eModifierType_Bevel) {
            BevelModifierData *bmd = (BevelModifierData *)md;
            bmd->bevel_angle = DEG2RADF(bmd->bevel_angle);
          }
        }
      }
 
      LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
        if (scene->ed) {
          blender::seq::for_each_callback(&scene->ed->seqbase, strip_set_wipe_angle_cb, nullptr);
        }
      }
 
      FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
        if (ntree->type == NTREE_COMPOSIT) {
          LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
            if (node->type_legacy == CMP_NODE_BOKEHIMAGE) {
              NodeBokehImage *n = static_cast<NodeBokehImage *>(node->storage);
              n->angle = DEG2RADF(n->angle);
            }
            if (node->type_legacy == CMP_NODE_MASK_BOX) {
              NodeBoxMask *n = static_cast<NodeBoxMask *>(node->storage);
              n->rotation = DEG2RADF(n->rotation);
            }
            if (node->type_legacy == CMP_NODE_MASK_ELLIPSE) {
              NodeEllipseMask *n = static_cast<NodeEllipseMask *>(node->storage);
              n->rotation = DEG2RADF(n->rotation);
            }
          }
        }
      }
      FOREACH_NODETREE_END;
    }
 
    if (!DNA_struct_member_exists(
            fd->filesdna, "MovieTrackingPlaneTrack", "float", "image_opacity"))
    {
      LISTBASE_FOREACH (MovieClip *, clip, &bmain->movieclips) {
        LISTBASE_FOREACH (
            MovieTrackingPlaneTrack *, plane_track, &clip->tracking.plane_tracks_legacy)
        {
          plane_track->image_opacity = 1.0f;
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 269, 7)) {
    LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
      Sculpt *sd = scene->toolsettings->sculpt;
 
      if (sd) {
        enum {
          SCULPT_SYMM_X = (1 << 0),
          SCULPT_SYMM_Y = (1 << 1),
          SCULPT_SYMM_Z = (1 << 2),
          SCULPT_SYMMETRY_FEATHER = (1 << 6),
        };
        int symmetry_flags = sd->flags & 7;
 
        if (symmetry_flags & SCULPT_SYMM_X) {
          sd->paint.symmetry_flags |= PAINT_SYMM_X;
        }
        if (symmetry_flags & SCULPT_SYMM_Y) {
          sd->paint.symmetry_flags |= PAINT_SYMM_Y;
        }
        if (symmetry_flags & SCULPT_SYMM_Z) {
          sd->paint.symmetry_flags |= PAINT_SYMM_Z;
        }
        if (symmetry_flags & SCULPT_SYMMETRY_FEATHER) {
          sd->paint.symmetry_flags |= PAINT_SYMMETRY_FEATHER;
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 269, 8)) {
    LISTBASE_FOREACH (Curve *, cu, &bmain->curves) {
      if (cu->str) {
        cu->len_char32 = BLI_strlen_utf8(cu->str);
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 269, 9)) {
    LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
        if (md->type == eModifierType_Build) {
          BuildModifierData *bmd = (BuildModifierData *)md;
          if (bmd->randomize) {
            bmd->flag |= MOD_BUILD_FLAG_RANDOMIZE;
          }
        }
      }
    }
  }
 
  if (!MAIN_VERSION_FILE_ATLEAST(bmain, 269, 11)) {
    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
        LISTBASE_FOREACH (SpaceLink *, space_link, &area->spacedata) {
          if (space_link->spacetype == SPACE_IMAGE) {
            ListBase *lb;
 
            if (space_link == area->spacedata.first) {
              lb = &area->regionbase;
            }
            else {
              lb = &space_link->regionbase;
            }
 
            LISTBASE_FOREACH (ARegion *, region, lb) {
              if (region->regiontype == RGN_TYPE_PREVIEW) {
                region->regiontype = RGN_TYPE_TOOLS;
                region->alignment = RGN_ALIGN_LEFT;
              }
              else if (region->regiontype == RGN_TYPE_UI) {
                region->alignment = RGN_ALIGN_RIGHT;
              }
            }
          }
        }
      }
    }
  }
}
 
void do_versions_after_linking_260(Main * /*bmain*/) {}