RenderMan & RISpec, [Newbie Question] Initializing a shader..

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RenderMan & RISpec >> [Newbie Question] Initializing a shader..

by shpyo » Tue, 07 Oct 2003 17:19:34 GMT

Hello.

Currently, I'm implementing a light shader which needs some
preprocessing.
I coded it in the shader and it is performed every time when the light
shader
is called. So, I want to know if there is a method to let the
initializing(preprocessing) code be performed only one time.

Thank you in advance.
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RenderMan & RISpec >> [Newbie Question] Initializing a shader..

by Petr Lobaz » Thu, 09 Oct 2003 16:37:34 GMT


Hi,
if I remember it correctly, light shader is divided into two parts -
illuminate and the rest. The only code that is executed in a loop is the
illuminate block. The rest of the code is executed just once. So - put
the preprocessing outside of the illuminate and you should be happy.

Petr
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