Revision: 26421
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=26421
Author: blendix
Date: 2010-01-30 10:24:50 +0100 (Sat, 30 Jan 2010)
Log Message:
-----------
Fix #19875: drawing smoke on graphics cards that do not support
non-power-of-two textures lead to artifacts due to uninitialized
memory if the domain had a non-power-of-two size.
Modified Paths:
--------------
trunk/blender/source/blender/gpu/intern/gpu_extensions.c
Modified: trunk/blender/source/blender/gpu/intern/gpu_extensions.c
===================================================================
--- trunk/blender/source/blender/gpu/intern/gpu_extensions.c 2010-01-30
09:18:59 UTC (rev 26420)
+++ trunk/blender/source/blender/gpu/intern/gpu_extensions.c 2010-01-30
09:24:50 UTC (rev 26421)
@@ -372,6 +372,13 @@
GPU_print_error("3D glTexImage3D");
if (fpixels) {
+ if(!GPU_non_power_of_two_support() && (w != tex->w || h !=
tex->h || depth != tex->depth)) {
+ /* clear first to avoid unitialized pixels */
+ float *zero=
MEM_callocN(sizeof(float)*tex->w*tex->h*tex->depth, "zero");
+ glTexSubImage3D(tex->target, 0, 0, 0, 0, tex->w,
tex->h, tex->depth, format, type, zero);
+ MEM_freeN(zero);
+ }
+
glTexSubImage3D(tex->target, 0, 0, 0, 0, w, h, depth, format,
type, fpixels);
GPU_print_error("3D glTexSubImage3D");
}
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