Is there a way to change a texture after a certain frame ? I want to change the texture of one person after the frame 10. I've found the "frame" node but i dunno how to use it. Thanks Laurent

I use the blend function to change textures on objects. 1) Connect the blender function to the top and third nodes; 2) Connect the 2 textures you want to the 2 inputs on the blender node; 3) I can't remember exactly, but varying the value from 0 to 1 will change from one texture to the next. Play around with it to be sure. Hope this helps.

The frame node only outputs the current frame number. It's a variable.

I posted some examples of animated materials (with illustrations) in an earlier thread:

http://www.renderosity.com/messages.ez?Form.ShowMessage=994366#7

As an experiment, variable nodes were used to determine the rate at which the Blending value changes, but it's usually easier to click the little key-symbol next to the number and manually keyframe the changes.