animating shaders

[Hello world]

Hi I guess few effects are created by taking parameters to sops.

I have created a simple shader.could anyone tell me how to animate the red color so that it spreads fully.

Here is my file.Looking forward to learn how this can be done.Thanks

scratchedpaint_v1.hipnc

[moondeer]

here is a lesson by Sean Lewkiw that includes animated shaders...

http://online.cg-masters.com/videos/houdini-11-introduction-to-procedural-animation-and-shading

Edited March 1, 2012 by moondeer

[Macha]

Hey Brian, you can drive shaders either by animating parameters on the shader itself, or by animating attributes that are being picked up by the shader ( they need to have a common name and type with parameters in the shader, they are then picked ub and overriden automatically). I did a fair bit of volume and cloud animations that way.

Vex is very special in the sense that as a language it is basically dealing with vectors, so you can build test setups in a sop context and easily preview, debug and understand them before setting them into a shop context.

Edited March 1, 2012 by Macha