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Hallo,

very often I wish I would get less vignetting. It is to strong. I have written a while ago, that a darkroom process compensate a part of the camera vignetting. Now, the renderings looks like done with a customer digital camera.

Here an example with 40 mm lens. I have done some color and contrast correction in PS and I could be happy with the image, but the vignetting ... . Please, give me a control.

Neat Image is capable of effectively reducing vignetting, supposing you have a large enough noise-only region... did you try that?

PS: where did you take the dragon model? I see everywhere in rendered image but I can't find it! is it a free model?

j_petrucci wrote:Neat Image is capable of effectively reducing vignetting, supposing you have a large enough noise-only region... did you try that?

PS: where did you take the dragon model? I see everywhere in rendered image but I can't find it! is it a free model?

Thanks, I will try neatimage. Is not the optimum, but could be a first aid.

The modell is free and from http://graphics.stanford.edu/data/3Dscanrep/.

j_petrucci wrote:PS: where did you take the dragon model? I see everywhere in rendered image but I can't find it! is it a free model?

http://graphics.stanford.edu/data/3Dscanrep/ if you are able to import that kind of format to youre 3d app.

There's absolutely no point in curing for that on the image level (which means after the image was converted to TGA or whatever...

It's all simple math, and it's lined out here:
http://www.maxwellrender.com/forum/viewtopic.php?t=2923

It should be pretty easy to get such an option which adjusts vignetting before the image conversion. And it really is a pain in the but. I have tried to compensate the Basilika QTVR, but this is actually pretty hard to do n the image level because the color does not easily tranlates to the energy levels if you don't know the transfer function that was used. :-/

Kabe

thanks Micha and Luden!
I downloaded it, but it seems to be in the QSplat format... how did you convert in something like .DXF or .OBJ?

I use Rhino and for Rhino it is possible to get an import plugin (http://www.maxwellrender.com/forum/view ... 4&start=15)

yep, I took it now... many many thanks!