Commit: 6e8321f2c033367dc6a7d6ec305c2a27e0b62969
Author: Sv. Lockal
Date: Tue Jan 14 22:58:07 2014 +0400
https://developer.blender.org/rB6e8321f2c033367dc6a7d6ec305c2a27e0b62969
Fix GLSL compatible_pow to give 1.0 for 0 ^ 0
===================================================================
M source/blender/gpu/shaders/gpu_shader_material.glsl
===================================================================
diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl
b/source/blender/gpu/shaders/gpu_shader_material.glsl
index 3a4aa75..cdb3f57 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -6,6 +6,9 @@ float exp_blender(float f)
float compatible_pow(float x, float y)
{
+ if(y == 0.0) /* x^0 -> 1, including 0^0 */
+ return 1.0;
+
/* glsl pow doesn't accept negative x */
if(x < 0.0) {
if(mod(-y, 2.0) == 0.0)
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