BKE_volume_render.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "BLI_sys_types.h"
 
#include "DNA_volume_types.h"
 
#include "BKE_volume_enums.hh"
#include "BKE_volume_grid_fwd.hh"
 
struct Volume;
 
/* Dense Voxels */
 
struct DenseFloatVolumeGrid {
  VolumeGridType type;
  int resolution[3];
  float texture_to_object[4][4];
  int channels;
  float *voxels;
};
 
bool BKE_volume_grid_dense_floats(const Volume *volume,
                                  const blender::bke::VolumeGridData *volume_grid,
                                  DenseFloatVolumeGrid *r_dense_grid);
void BKE_volume_dense_float_grid_clear(DenseFloatVolumeGrid *dense_grid);
 
/* Wireframe */
 
using BKE_volume_wireframe_cb = void (*)(
    void *userdata, const float (*verts)[3], const int (*edges)[2], int totvert, int totedge);
 
void BKE_volume_grid_wireframe(const Volume *volume,
                               const blender::bke::VolumeGridData *volume_grid,
                               BKE_volume_wireframe_cb cb,
                               void *cb_userdata);
 
/* Selection Surface */
 
using BKE_volume_selection_surface_cb =
    void (*)(void *userdata, float (*verts)[3], int (*tris)[3], int totvert, int tottris);
 
void BKE_volume_grid_selection_surface(const Volume *volume,
                                       const blender::bke::VolumeGridData *volume_grid,
                                       BKE_volume_selection_surface_cb cb,
                                       void *cb_userdata);
 
/* Render */
 
float BKE_volume_density_scale(const Volume *volume, const float matrix[4][4]);