Material Replacement/Override in Render

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On 29/11/2011 at 04:58, xxxxxxxx wrote:

Hello,

I need to replace some materials but only in the render not the viewport i am doing this in tests just using a python tag on the object . Currently when rendering to picture viewer this can be done and works as c4d clones the document to render(Not sure if i should be changing materials in this clonned doc or not so if you can give me a good scenerio why i should not please let me know).

The problem is when i render to editor view c4d does not (seem) to clone the document and i dont want to alter the actual working document(as there is no entry/exit messages/points to be be able to tell when picture viewer has started rendering and when its done/cancelled ).

Has anyone got any ideas or thoughts on how this can be achieved? - replacing materials in render only

Thanks