From BlenderWiki
Known Bugs
Open
- Background window texture coordinates are wrong in orthographic mode.
- The tangent vector is not smooth across the surface.
- Generated texture coordinates are not computed from the undeformed mesh.
- Normal and tangent coordinates do not have derivatives, so texture filtering and bump mapping does not work when using these as texture coordinates.
- When using Instancing or Dynamic BVH, self-intersection may occur due to precision issues. Switching to Static BVH may avoid some problems (example).
- Missing viewport updates for:
- Shader changes for displacement
- Changing visibility in outliner.
- GPU rendering with F12 can be slower than viewport and command line rendering. The bottleneck is in the GPU to CPU memory copy, it's unclear why it takes so much time, but doing an asynchronous copy may avoid the issue.
- Crash when trying to do a 3D View Render while in Local View.
- Packed, painted or animated image textures do not work.
- Problem loading png images (saved in e.g. gimp, not blender) on linux (example .png)
- Crash rendering durian files, e.g. pro/scenes/03.2_bandaging/03.2a_comp.blend and pro/scenes/03.4_chickenrun/03.4l_comp.blend.
- Error in group node rendering (test file)
- Assigning images in image editor doesn't work when there is no material (report)
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Missing add material button in node editor, for new object with no material slot
- Changing threads number or auto/fixed does not update viewport render.
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Problem with black lines in win32 renders (image)
- Bump maps after beckmann reflection not working when (report)
- Displacement maps get quantized (report)
