Opacity Noise [Corona 5 - 3ds Max 2020]

[David Neal Goodman]

How do I reduce the noise in her hair (right side)? The overall noise in the image is at 1.59% and I can't get it to clear.

[David Neal Goodman]

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[romullus]

I don't think that's a noise, that's not enough antialiasing. What image filter is set in your Corona render settings? Maybe try to change it to some that produce softer result and/or increase its radius. Run experiments with render region selected around problematic area, see if rendering more passes will helps with antialiasing the hair.

[David Neal Goodman]

Thanks for your reply, romullus.

The filter is default. I'll look at changing the filter and see if I can get better results. I can't really afford more render passes in the budget though, but I'll experiment to see if more passes would have helped.

[romullus]

Is this for animation? If that's the case, then you definitely should try softer filtering. I think box is the softest. Also try to increase filter width to 3-4 px. Motion blur also could help a great deal with your issue, but it would add to render time, so maybe worth to try to apply it in post.

[David Neal Goodman]

Is this for animation? If that's the case, then you definitely should try softer filtering. I think box is the softest. Also try to increase filter width to 3-4 px. Motion blur also could help a great deal with your issue, but it would add to render time, so maybe worth to try to apply it in post.

Yes it is. I'll try that. Thanks again.