Noise in render when using procedural noise in Bump channel

[Brian Jones]

you also might want to set Antialiasing/Filter to Gauss(Animation)

[Thomas Hendrikson]

Hi Brian,
Thanks so much for looking at my file, I just did a test render and there’s still flickering. Other ways I can reduce it? Or is there some other way I can create a sand texture that might be better?

[Brian Jones]

are you looking at flickering in the noise at the bottom of the screen (close to the camera) or the moire stuff further back?

[Thomas Hendrikson]

It’s all quite flickery to me. Hmm. Don’t know if the bump has any value when it’s this vague, would you know of anything that could enhance it?

[Brian Jones]

I don’t know, your texture is, as you say, ‘sand like’ but not really looking like real sand so it depends. Of course my experience is more snow which shares some of the same problems getting it to look like it might be snow (i.e. it’s pretty much a smooth surface shaped by wind etc. until you get real close to it) And snow has sparkles in the right light – I’ve never seen sand do that but my personal experience has been limited.
There are sand textures in the browser, I don’t know whether any of those are a place to look for hints (or if you have already been there and done that…)