I've just made a test render of frostyed glass and found out that it is quite difficult to render a realistic (noiseless) shiny glass. Is there a way to reduce the noise without cranking up the samples count? Maybe there are some lighting/texture setting I don't know about?
The image below was rendered with pathtracing 2048 samples. But the result is bad. In the render region you may see that it needs more than 13000 samples just to render a satisfactory result, not even a good one. I'd say it's too much for 1080p animation. Or it's not?
click to open the image:
