Vertex color node worked only if VCol Paint/Light was enabled. Fixed
that, and removed the vertex color node making it part of the geometry
node instead.
Also, preview.blend had black vertex colors for the sphere, so set them
to white like the other primitives.
The preview.blend now shows raytracing/transparency, and also turns on and off
the fake shadow based on the 'shadbuf' setting.
Also included an updated preview.blend file to accomodate this.
- Improved lighting and background (also turned off shadows, unnecessary and
a potential slowdown in generating the preview)
- UV unwrapped the sphere and monkey models, so you can actually see something
useful when a texture is mapped to UV
- Added a 'hair' preview option (reused sphere icon will be eventually
forthcoming)
