Commit: 10b30928904fbdc586964f3d984a7b3b00ef0562
Author: Sergey Sharybin
Date: Wed Apr 30 14:06:25 2014 +0600
https://developer.blender.org/rB10b30928904fbdc586964f3d984a7b3b00ef0562
Enable threading on the CCG evaluation
Makes it so OSD SS modifier is about 10% slower than the
legacy one. This might be speed up further by skipping
all the tricks with CCGVert/Edge/Face intemediate storage
i guess.
Anyway, consider the current implementation not that bad.
NOTE: You need latest development version of OpenSubdiv,
otherwise threaded evaluation wouldn't work at all.
===================================================================
M source/blender/blenkernel/intern/CCGSubSurf.c
===================================================================
diff --git a/source/blender/blenkernel/intern/CCGSubSurf.c
b/source/blender/blenkernel/intern/CCGSubSurf.c
index 5cf1fc8..16eb780 100644
--- a/source/blender/blenkernel/intern/CCGSubSurf.c
+++ b/source/blender/blenkernel/intern/CCGSubSurf.c
@@ -2565,6 +2565,7 @@ static void opensubdiv_evaluateQuadFaceGrids(CCGSubSurf
*ss,
int vertDataSize = ss->meshIFC.vertDataSize;
int S;
+#pragma omp parallel for
for (S = 0; S < face->numVerts; S++) {
int x, y, k;
CCGEdge *edge = NULL;
@@ -2663,6 +2664,7 @@ static void opensubdiv_evaluateNGonFaceGrids(CCGSubSurf
*ss,
int S;
/* Evaluate face grids. */
+#pragma omp parallel for
for (S = 0; S < face->numVerts; S++) {
int x, y;
for (x = 0; x < gridSize; x++) {
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