Blender Git Loki

Fix: Bicubic bump mapping does not work for UVs outside the 0,1 range.

This issue is caused by texelFetch which does not take wrapping options into account as it uses unnormalized uv coordinates to access a texel. A hack was made to do manual wrapping in the shader. This is acceptable because texture wrap mode is always treated as "repeat" elsewhere in 3D view in blender.

Thanks to Morten Mikkelsen for pointing out the cause of the issue and providing the fix.