DNA_meta_types.h

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/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "DNA_ID.h"
#include "DNA_defs.h"
#include "DNA_listBase.h"
 
struct AnimData;
struct BoundBox;
struct Material;
 
typedef struct MetaElem {
  struct MetaElem *next, *prev;

  struct BoundBox *bb;
 
  short type, flag;
  char _pad[4];
  float x, y, z;
  float quat[4];
  float expx;
  float expy;
  float expz;
  float rad;
  float rad2;
  float s;
  float len;

  float *mat, *imat;
} MetaElem;
 
typedef struct MetaBall {
#ifdef __cplusplus
  static constexpr ID_Type id_type = ID_MB;
#endif
 
  ID id;
  struct AnimData *adt;
 
  ListBase elems;
  ListBase *editelems;
 
  /* material of the mother ball will define the material used of all others */
  struct Material **mat;

  char flag, flag2;
  short totcol;
  char texspace_flag;
  char _pad[2];

  char needs_flush_to_id;
 
  float texspace_location[3];
  float texspace_size[3];

  float wiresize, rendersize;
 
  /* bias elements to have an offset volume.
   * mother ball changes will effect other objects thresholds,
   * but these may also have their own thresh as an offset */
  float thresh;
 
  char _pad0[4];

  MetaElem *lastelem;
 
} MetaBall;
 
/* **************** METABALL ********************* */

enum {
  MB_TEXSPACE_FLAG_AUTO = 1 << 0,
};

enum {
  MB_UPDATE_ALWAYS = 0,
  MB_UPDATE_HALFRES = 1,
  MB_UPDATE_FAST = 2,
  MB_UPDATE_NEVER = 3,
};

enum {
  MB_DS_EXPAND = 1 << 0,
};

enum {
  MB_BALL = 0,
  MB_TUBEX = 1, /* Deprecated. */
  MB_TUBEY = 2, /* Deprecated. */
  MB_TUBEZ = 3, /* Deprecated. */
  MB_TUBE = 4,
  MB_PLANE = 5,
  MB_ELIPSOID = 6,
  MB_CUBE = 7,
};
 
#define MB_TYPE_SIZE_SQUARED(type) ((type) == MB_ELIPSOID)

enum {
  MB_NEGATIVE = 1 << 1,
  MB_HIDE = 1 << 3,
  MB_SCALE_RAD = 1 << 4,
};