Revision: 28352
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=28352
Author: blendix
Date: 2010-04-22 18:47:25 +0200 (Thu, 22 Apr 2010)
Log Message:
-----------
Render Branch: tweak to SSS code to avoid division by zero, and remove
some comments.
Modified Paths:
--------------
branches/render25/source/blender/render/intern/source/sss.c
Modified: branches/render25/source/blender/render/intern/source/sss.c
===================================================================
--- branches/render25/source/blender/render/intern/source/sss.c 2010-04-22
16:37:13 UTC (rev 28351)
+++ branches/render25/source/blender/render/intern/source/sss.c 2010-04-22
16:47:25 UTC (rev 28352)
@@ -30,12 +30,6 @@
/* Possible Improvements:
- add fresnel terms
- adapt Rd table to scale, now with small scale there are a lot of misses?
- - possible interesting method: perform sss on all samples in the tree,
- and then use those values interpolated somehow later. can also do this
- filtering on demand for speed. since we are doing things in screen
- space now there is an exact correspondence
- - avoid duplicate shading (filtering points in advance, irradiance cache
- like lookup?)
- lower resolution samples
*/
@@ -440,7 +434,7 @@
memset(&result, 0, sizeof(result));
/* this is used to multiply areas and squared distance */
- result.scalefac= 1.0f/(scale*scale);
+ result.scalefac= 1.0f/maxf(scale*scale, 1e-20f);
traverse_octree(tree, tree->root, co, 1, &result);
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