Speed of complicated Shader

[Helper]

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On 21/09/2005 at 14:06, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   9.1 
Platform:      
Language(s) :     C++  ;

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I am creating a fairly complicated shader that requires a fair bit of processing, quite a bit of Sampling existing shaders.

Now, when C4D creates a preview of the shader in the AM, its quite fast (fast enough to use), when rendering, the shader is fast enough to use. The problem I am getting is when C4D updates the editor window and maps a low res version across a mesh, this is taking FOR-EVER.

I can speed this up a bit by generating a basic version of the shader when !cd->vd, but this also creates a basic version in the preview of the AM, which i don't really want.

Is there someway to detect what part of c4d is creating the shader for previewing, so I could create the basic version on just the editor update stage?

Or any other suggestions hanging around?

Thanks