RenderMan & RISpec, Layering Ensembles?

comp.graphics.rendering.renderman - RenderMan interface & shading language.


RenderMan & RISpec >> Layering Ensembles?

by shefali joshi » Tue, 05 Jul 2005 05:03:15 GMT

Hi,

I'm trying to layer 2 ensembles. I found the "Layer" shader, but it only
allows layering AdditiveFX nodes.
Basically I want to have 2 layers and each layer has a
color,transparency and Bump to it. Since ensemble allows displacements,
I used 2 layers of ensembles. but now I'm at a loss as to how I can
layer these.

Is there a way to layer Ensembles?

Thanks.
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RenderMan & RISpec >> Layering Ensembles?

by Don Rudy » Tue, 05 Jul 2005 23:02:08 GMT


Im sorry to tell you that there is no way to layer ensembles in slim.
The reason for this is that ensembles take a surface and a displacement
(plus other shader types) and assigns them to your geometry.

Every piece of geometry can have only one surface and one displacement
shader at the time, so if you where allowed to layer ensembles you
would end up with more than one surface and displacement shader.

You can use the layer template to layer the surface shaders. For the
displacement one you will have to use the combine displacement
template.


Good luck!

"Don" Rudy
Shader TD - DNA Productions
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