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Sorry for the bunch of threads lately but I keep finding things here and there with RT. 
This time I'm having issues with refractions in car windows. They render correctly with the Advanced renderer and RT CPU but come out strange with RT CUDA. The glass material itself is pretty simple - VrayMtl with nearly white reflection color, slightly blue refraction color and turned on "Reflect on back side". Everything else is at default. Also all glass objects have thickness.
Here's the screenshot with the results. Notice the strange refraction of the side mirror:
This time I'm having issues with refractions in car windows. They render correctly with the Advanced renderer and RT CPU but come out strange with RT CUDA. The glass material itself is pretty simple - VrayMtl with nearly white reflection color, slightly blue refraction color and turned on "Reflect on back side". Everything else is at default. Also all glass objects have thickness.
Here's the screenshot with the results. Notice the strange refraction of the side mirror:
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