Genesis 8 Eyeballs - Problem
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Hi There
I have a strange problem with eyeballs. They seems to be transparent or something and after rendering them they turn very dark and noisy. Does anyone have this same problem?
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strange eyeballs.jpg
598 x 350 - 131K
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strange eyeballs_render.jpg
598 x 350 - 302K
Comments
The noisiness will be down to their materials, they are the slowest part of the image to converge so Iray decalres it done (95% of the total pixels converged) while the eyes are still far from converged. You could try doing a spot render (setting it to go to a new window in Tool settings) of each eye separately, where they will force the render to keep going as they account for more than 5% of the pixels, and composite in your image editor (just save the spot renders as PNG or tiff to get a mask). You could also up the quality setting in Render settings, which means Iray is stricter about what counts as converged. Finally, in the 4.11 beta, you could turn on the denoiser as long as the scene fits into your GPU's RAM - though given just how noisy the eyes are you may need to use one of the other approaches as well to give the denoiser enough to work with.
I find this happens most when Cornea and Eye Moisture are set to Thin Shell: Off. Setting it to Thin Shell: On isn't as realistic... but it will render faster/better.
Also if your character has a cornea bulge- or other correction morph, try dialing it in, as the eye topology of the Genesis models is far from physically accurate.