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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Blender Foundation
*
* ***** END GPL LICENSE BLOCK *****
*
*/
/** \file DNA_hair_types.h
* \ingroup DNA
*/
#ifndef __DNA_HAIR_TYPES_H__
#define __DNA_HAIR_TYPES_H__
#include "DNA_defs.h"
#include "DNA_listBase.h"
#include "DNA_ID.h"
#include "DNA_meshdata_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Root point (follicle) of a hair on a surface */
typedef struct HairFollicle {
/* Sample on the scalp mesh for the root vertex */
MeshSample mesh_sample;
/* Parent curve indices for shape interpolation */
unsigned int parent_index[4];
/* Parent curve weights for shape interpolation */
float parent_weight[4];
} HairFollicle;
/* Collection of hair roots on a surface */
typedef struct HairPattern {
struct HairFollicle *follicles;
int num_follicles;
int pad;
} HairPattern;
typedef struct HairGuideCurve {
/* Sample on the scalp mesh for the root vertex */
MeshSample mesh_sample;
/* Offset in the vertex array where the curve starts */
int vertstart;
/* Number of vertices in the curve */
int numverts;
} HairGuideCurve;
typedef struct HairGuideVertex {
int flag;
float co[3];
} HairGuideVertex;
typedef struct HairSystem {
int flag;
int pad;
/* Set of hair follicles on the scalp mesh */
struct HairPattern *pattern;
/* Curves for guiding hair fibers */
struct HairGuideCurve *curves;
/* Control vertices on guide curves */
struct HairGuideVertex *verts;
/* Number of guide curves */
int totcurves;
/* Number of guide curve vertices */
int totverts;
/* Material used for drawing and rendering hair fibers */
int material_index;
int pad2;
/* Data buffers for drawing */
void *draw_batch_cache;
/* Texture buffer for drawing */
void *draw_texture_cache;
} HairSystem;
typedef enum eHairSystemFlag
{
/* Guide curves vertices have been changed, recalc buffer offsets */
HAIR_SYSTEM_UPDATE_GUIDE_VERT_OFFSET = (1 << 8),
/* Guide curve positions have changed, rebind hair follicles */
HAIR_SYSTEM_UPDATE_FOLLICLE_BINDING = (1 << 9),
} eHairSystemFlag;
typedef struct HairDrawSettings
{
short follicle_mode;
short pad1;
int pad2;
} HairDrawSettings;
typedef enum eHairDrawFollicleMode
{
HAIR_DRAW_FOLLICLE_NONE = 0,
HAIR_DRAW_FOLLICLE_POINTS = 1,
HAIR_DRAW_FOLLICLE_AXES = 2,
} eHairDrawFollicleMode;
#ifdef __cplusplus
}
#endif
#endif /* __DNA_HAIR_TYPES_H__ */
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