Christoph Hormann wrote:
> Maurice wrote:
> 
>> Sometimes I find a file with the extension .rca after rendering.
> 
> 
> Only when you interrupt a render.
> 
>> Anybody know what the rca file is for?
>>
> 
> That's the radiosity sample cache, it is always written during a render 
> using radiosity and is deleted when the render is finished.
> 
> Christoph
> 

Thanks, I suspected radiosity to be involved. Didn't make the link to 
interupted renders though.

-- 
Maurice

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