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What renderer do you use, is it 3D or VR, if it's 3D, there is a problem of the normal of the face is inverse, if you use a VR material, he defaults to double-sided, if the top is stretched out with a line, then check to see if the line is not closed, and the rest is not known!
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If there is a problem with the model, you can build a separate top and apply the material.
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Is it that the ceiling is not done or the camera is outside?
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Black must be no light, you look at the light on the roof of the shed, is there no loose boy to adjust the light, blocking the light behind the light of the impulsive things really can't lead source to the shed surface luminous material,
Causes: 1. The problem of lamp copying causes 3dmax rendering to be black, and all the lights in the shaded scene are turned off, including the default lights; Or manually add lights but don't turn on GI. >>>More
The first is the subdivision sampling, you choose the QMC maximum subdivision to 5 other defaults. >>>More
Maybe what you ate yesterday was green. This is normal, there is pigment in the food.
Find a love home integrated ceiling, because love home, so love home. >>>More
There are several reasons why 3dsMax renders black:
1 All scene lights are turned off, including the default lights in the render settings. >>>More