On Aug 15, 2005, at 6:47 PM, Frank Condello wrote:
On 15-Aug-05, at 8:09 PM, Lo Saeteurn wrote:
Does anyone know if vertex colors are supported for OBJ or 3DS?
I'm trying to support vertex lighting in my game and it would be
much easier if I didn't have to calculate fixed lights myself. I'm
not exactly sure how to calculate lighting based on vertex
position and normals.
I'm 99% sure OBJ does not support this, but I'm pretty sure 3DS
does. Whether or not you can find a 3D app that can bake lighting
into vertex colours and export that information in the 3DS format
is another question...
Thanks for the information. I was told 3DS Max supports vertex
colors, but I'll have to test it myself to see if it exports that
information. Does 3DMF Workshop import the vertex colors?
Calculating vertex lighting yourself isn't terribly difficult
though. Here's an old but useful reference: <http://
www.flipcode.com/articles/article_doinglighting.shtml>.
Thanks. I'll take a look if it's the last resort. Does it include
directional lights? Not very important as the dynamic lights should
work just fine since not many directional lights should really be
needed.
Shadows/occlusion are a little more work
These would be really great to have, but I'm not skilled enough to do
these. I'm willing to pay anyone to willing do it for me.
but if you're pre-processing the lighting doing brute-force ray/
triangle tests for every vertex from every light will do just fine.
Yep, preprocessed lights.
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