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Hi, I have an issue with getting area shadows on thin objects. Objects that are .5" thick using a top down lighting solution. When I render, I get a nice soft shadow, but I also get something that resembles a caustic, a negative energy shadow. Original problem started with a standard direct light, vray shadow generator, setting the area shadow type to spherical. When increasing the spherical size (U) above 20", the effect became obvious.
Turning on GI, problem still persists. Turned off caustics, tried override materials, no reflections, etc. Tried a test using a large cube versus a thin sliver. The large cube is fine, the sliver produces the same phenomenon. I tried using vray planar light, same results. Is there a solution for avoiding this concentration of energy that should be spread out and dark?
I'm using the brute force, 0 multiplier, vray shader method. Linear color mapping. Tried max lights and vray lights.
The image shows the results I am getting.
Turning on GI, problem still persists. Turned off caustics, tried override materials, no reflections, etc. Tried a test using a large cube versus a thin sliver. The large cube is fine, the sliver produces the same phenomenon. I tried using vray planar light, same results. Is there a solution for avoiding this concentration of energy that should be spread out and dark?
I'm using the brute force, 0 multiplier, vray shader method. Linear color mapping. Tried max lights and vray lights.
The image shows the results I am getting.
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