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Dispersion test but strong colors
Posted: Tue Apr 22, 2014 3:25 pm
by nuno1980
Hello.
My scene:
- circular tape mirrored
- ball light in inside of semi-ball mirrored
- prism w/ refractive index 1.5 and dispersion 1.0
- torus knot (blue clear) w/ index 1.6 and dispersion 0.018
screenshot:
I used PMC kernel with 32 max depth, 10k-reject, 45k-sample, caustics blur 0.00 and parallelism 2.
Strong colors are bad!? Why? Because the maxdepth 32 isn't sufficient? Will the newer version improve from 32 to 1024? Or has OR plugin for "3DS Max" infinite max depth?
Re: Dispersion test but strong colors
Posted: Wed Apr 23, 2014 10:20 am
by nuno1980
Please should response!

Due to my EASY question.
Re: Dispersion test but strong colors
Posted: Wed Apr 23, 2014 1:46 pm
by gordonrobb
I'm not sure what you're trying tidy, or what you're asking

Re: Dispersion test but strong colors
Posted: Wed Apr 23, 2014 11:37 pm
by nuno1980
Will I need more samples? Or am I waiting new version of OR w/ max depth increased?
Re: Dispersion test but strong colors
Posted: Thu Apr 24, 2014 1:04 am
by Rikk The Gaijin
What am I looking at?

Re: Dispersion test but strong colors
Posted: Thu Apr 24, 2014 8:09 am
by gordonrobb
Could you explain again which part of the image you are concerned with, perhaps circle it or something? I don't know what it is you are asking - sorry.
Re: Dispersion test but strong colors
Posted: Thu Apr 24, 2014 10:43 am
by nuno1980
Better understand to see new image. But sorry for bad english.

Re: Dispersion test but strong colors
Posted: Thu Apr 24, 2014 11:02 am
by gordonrobb
OK, so you are talking about the tray caustics, on the right hand side of the image?
If you are, then you need to let it render for longer. Personally, I would reduce the maximum depth. Think of the depth as how many surfaces you want the light to go through or reflect off. With less, it may be cleaner and render faster. However, the number of samples is what will take the noise away (eventually). If you are using PMC, try Path Tracing. Also, try to add a little Caustic Blur perhaps.
All of this is assuming you want the caustics
btw, I have no idea what a 'circular tape mirror' is

Re: Dispersion test but strong colors
Posted: Thu Apr 24, 2014 1:48 pm
by nuno1980
gordonrobb wrote:OK, so you are talking about the tray caustics, on the right hand side of the image?
If you are, then you need to let it render for longer. Personally, I would reduce the maximum depth. Think of the depth as how many surfaces you want the light to go through or reflect off. With less, it may be cleaner and render faster. However, the number of samples is what will take the noise away (eventually). If you are using PMC, try Path Tracing. Also, try to add a little Caustic Blur perhaps.
All of this is assuming you want the caustics
btw, I have no idea what a 'circular tape mirror' is

Tried PT but good caustics appeared are too much later.
I have changed DL imp to 0.2 and parallelism from 2 to 1 in PMC settings. I want keep 32 max depth because less max depth is less realistic.
Sounds look much better. I will post tomorrow new image with 50k- or 100k-sample.

Re: Dispersion test but strong colors
Posted: Thu Apr 24, 2014 2:11 pm
by bepeg4d
hi,
my suggestion is to leave the coustic blur at the default value (should be 0.010) or something near, otherwise the coustics will never clean up.
Octane 1.52 can go till 2048 max depth and all the plugin that use the this sdk can do the same.
ciao beppe