Revision: 26581
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=26581
Author: campbellbarton
Date: 2010-02-03 14:54:09 +0100 (Wed, 03 Feb 2010)
Log Message:
-----------
bugfix [#20709] Strange rendering artifacts in raytraced refraction
Modified Paths:
--------------
trunk/blender/source/blender/render/intern/source/rayshade.c
Modified: trunk/blender/source/blender/render/intern/source/rayshade.c
===================================================================
--- trunk/blender/source/blender/render/intern/source/rayshade.c
2010-02-03 12:01:57 UTC (rev 26580)
+++ trunk/blender/source/blender/render/intern/source/rayshade.c
2010-02-03 13:54:09 UTC (rev 26581)
@@ -699,7 +699,8 @@
col[2] = col[2]*blendfac + (1.0 - blendfac)*blendcol[2];
}
-/* the main recursive tracer itself */
+/* the main recursive tracer itself
+ * note: 'col' must be initialized */
static void traceray(ShadeInput *origshi, ShadeResult *origshr, short depth,
float *start, float *vec, float *col, ObjectInstanceRen *obi, VlakRen *vlr, int
traflag)
{
ShadeInput shi;
@@ -1316,7 +1317,9 @@
/* no blurriness, use the original normal */
VECCOPY(v_refract_new, v_refract);
}
-
+
+ sampcol[0]= sampcol[1]= sampcol[2]= sampcol[3]= 0.0f;
+
traceray(shi, shr, shi->mat->ray_depth_tra, shi->co,
v_refract_new, sampcol, shi->obi, shi->vlr, RAY_TRA|RAY_TRAFLIP);
col[0] += sampcol[0];
@@ -1414,6 +1417,8 @@
else
reflection(v_reflect, v_nor_new, shi->view, NULL);
+ sampcol[0]= sampcol[1]= sampcol[2]= sampcol[3]= 0.0f;
+
traceray(shi, shr, shi->mat->ray_depth, shi->co, v_reflect,
sampcol, shi->obi, shi->vlr, 0);
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