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jetwasp

Poster

17 Posts

Severe banding problem

Posted 30-Jan-2007 4:05 PM

This is the model of the laptop I've tweaked and I'm working on animating a tutorial about pixels. This is a plain rectangular shape colored flat gray, with one light on it.
As you can see, I've got a pretty severe banding problem. Compounding this is 1) I wasn't having this problem yesterday, and 2) It seems to be getting worse in the course of the day. Earlier today, my renders would start with the banding, then it would smooth out by the end of 16 passes. Now, even with 25 passes it's still somewhat visible.

Any suggestions are welcome.

Gerry

GraphicGuru

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399 Posts

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RE: Severe banding problem

Posted 30-Jan-2007 5:12 PM

let me ask, what program are you rendering it in? And, do you have the splines set to smooth (Peak) or flat (Peak)?

Typically AM renders well within itself (Native render) but if you export it to another rendering program, you have to take in consideration the problem you (can) run into with peaking...(smoothing and unsmoothing).

I am not sure if I answered your question, but you can drop me a line at geraldhattaway@sbcglobal.net

jetwasp

Poster

17 Posts

RE: Severe banding problem

Posted 31-Jan-2007 8:28 AM

Hi GG - I'm rendering right in AM. As for the peaking of splines, the area with the banding is one patch, so peaking splines I don't think enters into it.

I'm trying another tweak or two and will post results shortly.

Thanks for your response.

Gerry

jetwasp

Poster

17 Posts

RE: Severe banding problem

Posted 31-Jan-2007 11:12 AM
Modified by jetwasp On 31-Jan-2007 3:49 PM

edit - double post.
Gerry

jetwasp

Poster

17 Posts

RE: Severe banding problem

Posted 02-Feb-2007 8:39 AM

Here's a link to a first draft of the movie I'm working on. As you can see there is still some banding in the opening shot. This is with 16 passes. I have a little "roughness" on all the other surfaces of the laptop except for the top panel. I found it too distracting but I may go back and reconsider that.

http://www.mooneyart.com/animationtests/laptopmovietest_01.mov

Here also is the zipped prj file if you want to look at it. Plus, you get a free laptop model!

http://www.mooneyart.com/animationtests/nvidia_animation.zip

jetwasp

Poster

17 Posts

RE: Severe banding problem

Posted 02-Feb-2007 10:34 AM

Hm, this is interesting. The banding seems to have been a problem with the default light. No matter where I moved it I got banding perpendicular to the light source. So I deleted the light and created a new light, same settings, and the banding has completely disappeared.

jetwasp

Poster

17 Posts

RE: Severe banding problem

Posted 02-Feb-2007 11:16 AM


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