is it possible to take Houdini's variable (e.g. $F, $NCY……) to rman shaders? How about if I am not using Prman? I may be using other renderman renderer.

Thank you for your attention!

I think you might want to consult the latest RenderMan specification:
https://renderman.pixar.com/products/rispec/index.htm [renderman.pixar.com]

Note: If you render via the RenderMan ROP in Houdini you won't need to change anything, locally, to the scripts (RIBs). Unless that's what you want, of course.

brucelay
is it possible to take Houdini's variable (e.g. $F, $NCY……) to rman shaders? How about if I am not using Prman? I may be using other renderman renderer.

All RenderMan renderers “should” behave the same way.

You can take any Houdini attribute and then have a RenderMan shader use that attribute for whatever purpose. All you need to do is set up the attribute mapping. (See attached hip file) and have a shader that knows about the attribute.


surface test(uniform float ptNum = 0 {
Ci = ptNum/100;
}


www.stickylight.com/FLinks/spheres.hip [stickylight.com]

jim.