Renderman Shading Language

[buffer]

Hi, I have a very basic question. Can I create custom nodes for Renderman functions inside houdini just like in vshade or shaderman? Or I can only use the ones provided inside Houdini.

Thanks.

[rjpieke]

I'm assuming you're talking about VOPs. If so, here's a reply I got from SESI (thanks Luca!) when I asked the same thing:

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There is no way to have vcc generate an RSL VOP. But you can create a custom VOP and edit the Inner Code and Outer Code sections to do different things in the VEX and RSL contexts.

I tried this out and confirmed that it worked, here's what I did.

I started by creating a RSL surface shader.

I dove inside and created a rainbow vop.

I right clicked on the node and went to the operator type manager, the

definition for rainbow is highlighted.

I right clicked on the definition of rainbow and copied it. I the

dialog that popped up I renamed it to lucaRainbow.

In my vopnetwork I laid down an instance of lucaRainbow VOP, RMB on

it and brought up the operator type properties.

under the vex menu I started altering the code, hit apply and TA DA!

brand new RSL VOP.