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
+