OK, so we've finally arrived at your problem :)
On 15/10/10 14:31, Aitor Ardanza wrote:
Yeah, I understand it... but I can't work on a quad, because I need
to compare the position of the picking and the vertex in the vertex
shader, and depending on the distance between them make a new texture
....
Doing on a quad, the resulting image would be the next: [Image:
http://img836.imageshack.us/img836/3308/bakeoverride.jpg ] painting
in areas of blank. I need a way to find the coordinates of the
texture, having an vertex area of the model. With th picking, I get
the position and texture coordinates...
Check out the intersection code in osgmovie example in
MovieEventHandler::handle.
You get back the closest 3 vertices and a texture coordinate. I'm not
sure what else you need. It should work on a complex model and a quad.
jp
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