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Some years ago this existed, but with the rewrite to using a Mesh class that code got obsoleted and removed since no one currently is interested in using it. At the time I think we had a derived triangle class and associated texture to do this. Perhaps someone else on this list has a better way to do this, but I think the best way you could do this now is by creating a Texture that takes the 3 colors and does the interpolation using texture coordinates; then pass that texture to your traditional MeshTriangle (no changes required). I would imagine this should be fairly simple to implement. The only downside is that it is a bit more memory heavy since there is redundant color information, but for most scenes this shouldn't be a problem.

Thiago

Li-Ta Lo wrote:

Hi,

Is there any reason we can only assign one "surface" color to
a triangle rather than three "vertex" color to each vertex of
the triangle like OpenGL? There is code to interpolate normal
vector for triangle, why not color too?

Ollie

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• [Manta] Vectex v.s. Surface color, Li-Ta Lo, 03/19/2008
  • Re: [Manta] Vectex v.s. Surface color, Thiago Ize, 03/19/2008

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