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Strange light behavour , rendering becomes darker when light is turned on.

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  • Strange light behavour , rendering becomes darker when light is turned on.

    Hi,

    I have a scene where I animate how a building is being built as I move true it. While doing this I animate a Vray light that is inside the building so as the roof panels is put on the light becomes stronger.
    When I was doing this I noticed that the rendering actually gets darker when the lights that is inside the building is turned on. I have done a simple seen to show the problem

    The scene has a white plane a camera and two lights as in the image below. In the rendered image the problem is clearly visible, On the left side of the image the area light is of (multiplier 0 or of makes same result) and on the right side of the image the area light is on and multiplier 12, the dome light is on and same value both times. It looks like the area light is actually throwing a shadow on to the plane. I have attached the max file.

    Any help is greatly appreciated.

    Roger,
    Attached Files

  • #2
    Probably blocking GI: https://forums.chaosgroup.com/forum/...d-the-vray-sky
    A.

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