Oh, one more question about light control... Can I select one or more direct lights in a scene to affect ONLY the ambient channel of object shaders... and ignore shadow casting, diffuse, and specular properties of objects in a scene? This allows you to render a very fast ambient pass, to use as a base layer for compositing. After that, then you can render key lights, specularity, reflections, shadows, etc. to seperate layers for compositing in post. It's a good way to achieve fake GI in a scene, without having to render with actual GI calculations (faster). Also, can I use shadow maps instead of soft raytraced shadows? I find it very interesting that Carrara has a lot of the pro-level rendering features at such an affordable price. I actually began my 3D career with RayDream many years ago. It's the app I learned on. :-)

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Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.