so, say for example, I want to make a spinning Minecraft cake in blender cycles, and I want a blue, unaffected background from the light, so I have the world background be blue, and it reflects onto the cake, how would I make it so the objects in the scene are not affected by background reflections and whatnot?


1 Answer 1


The Light Path node's Is Camera Ray output yields a mask that can be used to change the look of the world when viewed directly from the camera.


Transparent materials such as a window will not work with this since any transmitted light is indirect. bummer


Ways around this issue include masking, transparent film, and making use of the other outputs of the Light Path node. 😉


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