173 lines
5.8 KiB
C
173 lines
5.8 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
#pragma once
|
|
|
|
/** \file
|
|
* \ingroup bke
|
|
* \brief Volume data-block.
|
|
*/
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct BoundBox;
|
|
struct Depsgraph;
|
|
struct Main;
|
|
struct Object;
|
|
struct ReportList;
|
|
struct Scene;
|
|
struct Volume;
|
|
struct VolumeGridVector;
|
|
|
|
/* Module */
|
|
|
|
void BKE_volumes_init(void);
|
|
|
|
/* Data-block Management */
|
|
|
|
void BKE_volume_init_grids(struct Volume *volume);
|
|
void *BKE_volume_add(struct Main *bmain, const char *name);
|
|
|
|
struct BoundBox *BKE_volume_boundbox_get(struct Object *ob);
|
|
|
|
bool BKE_volume_is_y_up(const struct Volume *volume);
|
|
bool BKE_volume_is_points_only(const struct Volume *volume);
|
|
|
|
/* Depsgraph */
|
|
|
|
void BKE_volume_eval_geometry(struct Depsgraph *depsgraph, struct Volume *volume);
|
|
void BKE_volume_data_update(struct Depsgraph *depsgraph,
|
|
struct Scene *scene,
|
|
struct Object *object);
|
|
|
|
void BKE_volume_grids_backup_restore(struct Volume *volume,
|
|
struct VolumeGridVector *grids,
|
|
const char *filepath);
|
|
|
|
/* Draw Cache */
|
|
|
|
enum {
|
|
BKE_VOLUME_BATCH_DIRTY_ALL = 0,
|
|
};
|
|
|
|
void BKE_volume_batch_cache_dirty_tag(struct Volume *volume, int mode);
|
|
void BKE_volume_batch_cache_free(struct Volume *volume);
|
|
|
|
extern void (*BKE_volume_batch_cache_dirty_tag_cb)(struct Volume *volume, int mode);
|
|
extern void (*BKE_volume_batch_cache_free_cb)(struct Volume *volume);
|
|
|
|
/* Grids
|
|
*
|
|
* For volumes referencing a file, the list of grids and metadata must be
|
|
* loaded before it can be accessed. This happens on-demand, only when needed
|
|
* by the user interface, dependency graph or render engine. */
|
|
|
|
typedef struct VolumeGrid VolumeGrid;
|
|
|
|
bool BKE_volume_load(const struct Volume *volume, const struct Main *bmain);
|
|
void BKE_volume_unload(struct Volume *volume);
|
|
bool BKE_volume_is_loaded(const struct Volume *volume);
|
|
|
|
int BKE_volume_num_grids(const struct Volume *volume);
|
|
const char *BKE_volume_grids_error_msg(const struct Volume *volume);
|
|
const char *BKE_volume_grids_frame_filepath(const struct Volume *volume);
|
|
const VolumeGrid *BKE_volume_grid_get_for_read(const struct Volume *volume, int grid_index);
|
|
VolumeGrid *BKE_volume_grid_get_for_write(struct Volume *volume, int grid_index);
|
|
const VolumeGrid *BKE_volume_grid_active_get_for_read(const struct Volume *volume);
|
|
/* Tries to find a grid with the given name. Make sure that the volume has been loaded. */
|
|
const VolumeGrid *BKE_volume_grid_find_for_read(const struct Volume *volume, const char *name);
|
|
VolumeGrid *BKE_volume_grid_find_for_write(struct Volume *volume, const char *name);
|
|
|
|
/* Tries to set the name of the velocity field. If no such grid exists with the given base name,
|
|
* this will try common post-fixes in order to detect velocity fields split into multiple grids.
|
|
* Return false if neither finding with the base name nor with the post-fixes succeeded. */
|
|
bool BKE_volume_set_velocity_grid_by_name(struct Volume *volume, const char *base_name);
|
|
|
|
/* Grid
|
|
*
|
|
* By default only grid metadata is loaded, for access to the tree and voxels
|
|
* BKE_volume_grid_load must be called first. */
|
|
|
|
typedef enum VolumeGridType {
|
|
VOLUME_GRID_UNKNOWN = 0,
|
|
VOLUME_GRID_BOOLEAN,
|
|
VOLUME_GRID_FLOAT,
|
|
VOLUME_GRID_DOUBLE,
|
|
VOLUME_GRID_INT,
|
|
VOLUME_GRID_INT64,
|
|
VOLUME_GRID_MASK,
|
|
VOLUME_GRID_VECTOR_FLOAT,
|
|
VOLUME_GRID_VECTOR_DOUBLE,
|
|
VOLUME_GRID_VECTOR_INT,
|
|
VOLUME_GRID_POINTS,
|
|
} VolumeGridType;
|
|
|
|
bool BKE_volume_grid_load(const struct Volume *volume, const struct VolumeGrid *grid);
|
|
void BKE_volume_grid_unload(const struct Volume *volume, const struct VolumeGrid *grid);
|
|
bool BKE_volume_grid_is_loaded(const struct VolumeGrid *grid);
|
|
|
|
/* Metadata */
|
|
|
|
const char *BKE_volume_grid_name(const struct VolumeGrid *grid);
|
|
VolumeGridType BKE_volume_grid_type(const struct VolumeGrid *grid);
|
|
int BKE_volume_grid_channels(const struct VolumeGrid *grid);
|
|
/**
|
|
* Transformation from index space to object space.
|
|
*/
|
|
void BKE_volume_grid_transform_matrix(const struct VolumeGrid *grid, float mat[4][4]);
|
|
void BKE_volume_grid_transform_matrix_set(const struct Volume *volume,
|
|
struct VolumeGrid *volume_grid,
|
|
const float mat[4][4]);
|
|
|
|
/* Volume Editing
|
|
*
|
|
* These are intended for modifiers to use on evaluated data-blocks.
|
|
*
|
|
* new_for_eval creates a volume data-block with no grids or file path, but
|
|
* preserves other settings such as viewport display options.
|
|
*
|
|
* copy_for_eval creates a volume data-block preserving everything except the
|
|
* file path. Grids are shared with the source data-block, not copied. */
|
|
|
|
struct Volume *BKE_volume_new_for_eval(const struct Volume *volume_src);
|
|
struct Volume *BKE_volume_copy_for_eval(const struct Volume *volume_src);
|
|
|
|
struct VolumeGrid *BKE_volume_grid_add(struct Volume *volume,
|
|
const char *name,
|
|
VolumeGridType type);
|
|
void BKE_volume_grid_remove(struct Volume *volume, struct VolumeGrid *grid);
|
|
|
|
/**
|
|
* OpenVDB crashes when the determinant of the transform matrix becomes too small.
|
|
*/
|
|
bool BKE_volume_grid_determinant_valid(double determinant);
|
|
|
|
/* Simplify */
|
|
int BKE_volume_simplify_level(const struct Depsgraph *depsgraph);
|
|
float BKE_volume_simplify_factor(const struct Depsgraph *depsgraph);
|
|
|
|
/* File Save */
|
|
bool BKE_volume_save(const struct Volume *volume,
|
|
const struct Main *bmain,
|
|
struct ReportList *reports,
|
|
const char *filepath);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/* OpenVDB Grid Access
|
|
*
|
|
* Access to OpenVDB grid for C++. These will automatically load grids from
|
|
* file or copy shared grids to make them writeable. */
|
|
|
|
#ifdef __cplusplus
|
|
|
|
# include "BLI_math_vector_types.hh"
|
|
|
|
bool BKE_volume_min_max(const Volume *volume, blender::float3 &r_min, blender::float3 &r_max);
|
|
|
|
#endif
|