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If you want to use VR, you have to adjust it slowly. Replicate to the instance for scaling.
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Generally, it is a curve, and the size of the line can be adjusted at will, or you can make other curved cuboids or something, glowing materials, hiding luminescent bodies. VR polarization doesn't make curves.
Either the direction of the surface is wrong.
Then there is no indirect lighting. >>>More
Probably you're using the default renderer. Put a few floodlights in the position of the lights, adjust the light intensity in the modification panel, and turn on the remote attenuation.
If you don't turn off the shadow, try turning off the shadow in the upper left corner.
After you have done Boolean operations, this situation will occur, convert to grid, select lines, and delete.
Supplement the light source near the original plaster line.