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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup DNA
*/
#pragma once
#include "DNA_ID.h"
#ifdef __cplusplus
extern "C" {
#endif
struct PackedFile;
struct VolumeGridVector;
typedef struct Volume_Runtime {
/** OpenVDB Grids. */
struct VolumeGridVector *grids;
/** Current frame in sequence for evaluated volume. */
int frame;
/** Default simplify level for volume grids loaded from files. */
int default_simplify_level;
/* Names for scalar grids which would need to be merged to recompose the velocity grid. */
char velocity_x_grid[64];
char velocity_y_grid[64];
char velocity_z_grid[64];
} Volume_Runtime;
typedef struct VolumeDisplay {
float density;
int wireframe_type;
int wireframe_detail;
int interpolation_method;
int axis_slice_method;
int slice_axis;
float slice_depth;
int _pad[1];
} VolumeDisplay;
typedef struct VolumeRender {
int precision;
int space;
float step_size;
float clipping;
} VolumeRender;
typedef struct Volume {
ID id;
struct AnimData *adt; /* animation data (must be immediately after id) */
/* File */
char filepath[1024]; /* FILE_MAX */
struct PackedFile *packedfile;
/* Sequence */
char is_sequence;
char sequence_mode;
char _pad1[2];
int frame_start;
int frame_duration;
int frame_offset;
/* Flag */
int flag;
/* Grids */
int active_grid;
/* Material */
struct Material **mat;
short totcol;
short _pad2[3];
/* Render & Display Settings */
VolumeRender render;
VolumeDisplay display;
/* Velocity field name. */
char velocity_grid[64];
char _pad3[3];
/* Unit of time the velocity vectors are expressed in.
* This uses the same enumeration values as #CacheFile.velocity_unit. */
char velocity_unit;
/* Factor for velocity vector for artistic control. */
float velocity_scale;
/* Draw Cache */
void *batch_cache;
/* Runtime Data */
Volume_Runtime runtime;
} Volume;
/** #Volume.flag */
enum {
VO_DS_EXPAND = (1 << 0),
};
/** #Volume.sequence_mode */
typedef enum VolumeSequenceMode {
VOLUME_SEQUENCE_CLIP = 0,
VOLUME_SEQUENCE_EXTEND = 1,
VOLUME_SEQUENCE_REPEAT = 2,
VOLUME_SEQUENCE_PING_PONG = 3,
} VolumeSequenceMode;
/** #VolumeDisplay.wireframe_type */
typedef enum VolumeWireframeType {
VOLUME_WIREFRAME_NONE = 0,
VOLUME_WIREFRAME_BOUNDS = 1,
VOLUME_WIREFRAME_BOXES = 2,
VOLUME_WIREFRAME_POINTS = 3,
} VolumeWireframeType;
/** #VolumeDisplay.wireframe_detail */
typedef enum VolumeWireframeDetail {
VOLUME_WIREFRAME_COARSE = 0,
VOLUME_WIREFRAME_FINE = 1,
} VolumeWireframeDetail;
/** #VolumeRender.precision */
typedef enum VolumeRenderPrecision {
VOLUME_PRECISION_HALF = 0,
VOLUME_PRECISION_FULL = 1,
VOLUME_PRECISION_VARIABLE = 2,
} VolumeRenderPrecision;
/** #VolumeRender.space */
typedef enum VolumeRenderSpace {
VOLUME_SPACE_OBJECT = 0,
VOLUME_SPACE_WORLD = 1,
} VolumeRenderSpace;
/** #VolumeDisplay.interpolation_method */
typedef enum VolumeDisplayInterpMethod {
VOLUME_DISPLAY_INTERP_LINEAR = 0,
VOLUME_DISPLAY_INTERP_CUBIC = 1,
VOLUME_DISPLAY_INTERP_CLOSEST = 2,
} VolumeDisplayInterpMethod;
/** #VolumeDisplay.axis_slice_method */
typedef enum AxisAlignedSlicingMethod {
VOLUME_AXIS_SLICE_FULL = 0,
VOLUME_AXIS_SLICE_SINGLE = 1,
} AxisAlignedSlicingMethod;
/** #VolumeDisplay.slice_axis */
typedef enum SliceAxis {
VOLUME_SLICE_AXIS_AUTO = 0,
VOLUME_SLICE_AXIS_X = 1,
VOLUME_SLICE_AXIS_Y = 2,
VOLUME_SLICE_AXIS_Z = 3,
} SliceAxis;
/* Only one material supported currently. */
#define VOLUME_MATERIAL_NR 1
#ifdef __cplusplus
}
#endif
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