Animation

maya pattern animation

by muratg on Nov.30, 2008, under 2D, Animation, Coding, Dynamics, Maya, Renderman

The animation and notes on this page explain how custom shaders written in the RenderMan Shading Language can be animated using SLIM parameter expressions.

the final image was composited on maya ‘playblast’ for getting the wireframe on objects
all the animation here is dynamics except for the stretch and squash, after setting up a regular 3d bouncing ball simulation i copied the baked animation to the sliders on the box that control the shader animation, one thing was to reverse the y axis since renderman t axis is inverse
[mattr “pCube1._parameter_” f$] tcl expression was used to feed the maya animation data to renderman shader variables
it is possible to control the color of the surface, the ball, and the line, the position of the ball and the line, the size of the ball in terms of its radius, squash and stretch, and the line in terms of its thickness
even though the shader isn’t complex, it is still having trouble with image maps and causing maya and RAT not respond, occasionally. couldn’t figure out why
patternanim-sl (1.5 KiB, 170 hits)