Sometimes i try to render a part of my model with Cycles in the viewport and get something like this:
The topology is simple:
I have to reload Blender to fix it.
Is it ok?
I think I have a similar issue. If I am using Cycles to render my image it gets worse and worse if I use more samples. It doesn't matter if I use the CPU or the GPU. The only lightsource is ambient occlusion.
That's weird, but i get another issue.
The same scene. The watches base has twomaterials assigned to it. The model is UV Unwrapped, the texture applied to the front digits panel.
The checker texture renders just fine:
If i replace the checker texture with the image everything seems fine in the Textured/Material vewport mode:
However, if i choose Rendered viewport mode it renders something like this:
Ooops! Sorry for the image size, can't find how to fix it
The issue has been resolved by upgrading to the 2.64 latest test build.