Hello,
I would appreciate some help with the following:
I am simulating the Illuminance levels on a horizontal surface due solely to a light pipe. I am using photon mapping. Everything goes well when I assign a mirror material to the tube (no errors and I get caustics). But when I assign a metal material (specular reflectance/highlights) to the tube, I get the attached error message.

Thanks!!!

Tags: Error when assigning metal material to tube

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