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Diffstat (limited to 'source/blender/render/intern/include/strand.h')
-rw-r--r-- | source/blender/render/intern/include/strand.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/source/blender/render/intern/include/strand.h b/source/blender/render/intern/include/strand.h new file mode 100644 index 00000000000..f4e22c78b42 --- /dev/null +++ b/source/blender/render/intern/include/strand.h @@ -0,0 +1,99 @@ +/* + * ***** 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): Brecht Van Lommel. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/render/intern/include/strand.h + * \ingroup render + */ + + +#ifndef __STRAND_H__ +#define __STRAND_H__ + +struct StrandVert; +struct StrandRen; +struct StrandBuffer; +struct ShadeSample; +struct StrandPart; +struct Render; +struct ZSpan; +struct ObjectInstanceRen; +struct StrandSurface; +struct DerivedMesh; +struct ObjectRen; + +typedef struct StrandPoint { + /* position within segment */ + float t; + + /* camera space */ + float co[3]; + float nor[3]; + float tan[3]; + float strandco; + float width; + + /* derivatives */ + float dtco[3], dsco[3]; + float dtstrandco; + + /* outer points */ + float co1[3], co2[3]; + float hoco1[4], hoco2[4]; + float zco1[3], zco2[3]; + int clip1, clip2; + + /* screen space */ + float hoco[4]; + float x, y; + + /* simplification */ + float alpha; +} StrandPoint; + +typedef struct StrandSegment { + struct StrandVert *v[4]; + struct StrandRen *strand; + struct StrandBuffer *buffer; + struct ObjectInstanceRen *obi; + float sqadaptcos; + + StrandPoint point1, point2; + int shaded; +} StrandSegment; + +struct StrandShadeCache; +typedef struct StrandShadeCache StrandShadeCache; + +void strand_eval_point(StrandSegment *sseg, StrandPoint *spoint); +void render_strand_segment(struct Render *re, float winmat[4][4], struct StrandPart *spart, struct ZSpan *zspan, int totzspan, StrandSegment *sseg); +void strand_minmax(struct StrandRen *strand, float min[3], float max[3], const float width); + +struct StrandSurface *cache_strand_surface(struct Render *re, struct ObjectRen *obr, struct DerivedMesh *dm, float mat[4][4], int timeoffset); +void free_strand_surface(struct Render *re); + +struct StrandShadeCache *strand_shade_cache_create(void); +void strand_shade_cache_free(struct StrandShadeCache *cache); +void strand_shade_segment(struct Render *re, struct StrandShadeCache *cache, struct StrandSegment *sseg, struct ShadeSample *ssamp, float t, float s, int addpassflag); +void strand_shade_unref(struct StrandShadeCache *cache, struct ObjectInstanceRen *obi, struct StrandVert *svert); + +#endif + |