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Refractive glass without shadows added

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Ondra:
Refracts rays from camera, but does not form caustics, so it lets light though and does not cause fireflies:


From left to right: ordinary glass, twosided (thin) glass, new hybrid glass:

cecofuli:
Great! Thanks so much. Is it supported absorption too? So,  can we have  transparent colored shadows?

Ondra:
For direct visibility yes, but the shadows won't pick up absorbtion color

cecofuli:
So, isn't it possible this effect?

Ondra:
You would have to do it with the refraction color itself, not the attenuation.

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