Models and particles demo

[Andreaz]

I'm afraid, the sample did not work for me. I'm currently using a somewhat dated videocard, so I'm guessing that's what's causing this error.

I'm afraid it's just to old, dont seems it supports GLSL at all. Hovever it would probably be to slow to run the demo in software skinning anyhow.

I'm loading the shaders even if using the software skinning, just to be able to change it on the fly.

I'm also getting an error when the program runs.
I see one error in the Log file :

Change the line 14 in mesh.frag to

  color = (1.0f - primary_factor) * color + primary_factor * primary_color.rgba;

and it should work.