Scale Model: layer blending

kwistenbiebel · Post by **kwistenbiebel** » Sat Oct 03, 2009 3:46 am

That's exactly how I am fixing the vignetting now

pixie · Post by **pixie** » Sat Oct 03, 2009 4:52 am

Pibuz wrote:The control of the vignetting during the rendering is one of the things I requested. I hope they will introduce a parameter or something soon, sometimes, vignette is annoying. There's no way to fix it inside Indigo, you have to apply a PS filter under filters->distortion->lens correction (CS4). There's a tool to modify the vignetting..

You can fix it the way you would in the real world, by choosing the biggest f/stop available. The lower the aperture the less vignetting.

CTZn · Post by **CTZn** » Sun Oct 04, 2009 3:50 am

That is, a smaller aperture radius will generate a more pronounced vignetting.

One get a smaller radius by increasing the f/stop setting though

pixie · Post by **pixie** » Sun Oct 04, 2009 5:52 am

CTZn wrote:That is, a smaller aperture radius will generate a more pronounced vignetting.

One get a smaller radius by increasing the f/stop setting though

Smaller radius smaller aperture bigger f/stop?

CTZn · Post by **CTZn** » Sun Oct 04, 2009 6:40 am

pixie wrote:
CTZn wrote:That is, a smaller aperture radius will generate a more pronounced vignetting.

One get a smaller radius by increasing the f/stop setting though

Smaller radius smaller aperture bigger f/stop?

eeyup that's what I mean... aperture is defined by a radius, it's a distance expressed in meters.

f/stop in another hand is a ratio comparing two distances if I'm correct, it has no unit.

[removed attached image]

pixie · Post by **pixie** » Sun Oct 04, 2009 8:37 am

I made a quick test one for the biggest and another for the smaller f/stop

F1

: F1; F1.png (121.05 KiB) Viewed 1473 times

F64

: F64; F64.png (125.04 KiB) Viewed 1474 times

CTZn · Post by **CTZn** » Tue Oct 06, 2009 12:41 am

The twop images look identical ? Aren't both using a fstop of 64 ? There's something fishy in your comparison pixie I think.

pixie · Post by **pixie** » Tue Oct 06, 2009 12:56 am

CTZn wrote:The twop images look identical ? Aren't both using a fstop of 64 ? There's something fishy in your comparison pixie I think.

That was what surprised me too... I assure you that both were taken as advertised, I had to tweak the tonemapping so that they could despite the aperture size have the same light exposure. So they have also quite different iso and ev adjust accordingly

CTZn · Post by **CTZn** » Wed Oct 07, 2009 7:14 pm

Weirdo...

Can you provide the dimensions of the bridge in your scene plz pixie ? I must test that out... or just replace the bridge with it's textured bounding box (vertical bandings, to see fov details) and send the pigs.

pixie · Post by **pixie** » Wed Oct 07, 2009 9:45 pm

CTZn wrote:Weirdo...

Can you provide the dimensions of the bridge in your scene plz pixie ? I must test that out... or just replace the bridge with it's textured bounding box (vertical bandings, to see fov details) and send the pigs.

I've uploaded it on Leonardo's bridge thread, go check it out

CTZn · Post by **CTZn** » Thu Oct 08, 2009 7:18 am

Oh yes thanks, I started an argument then lost myself

I'm sorry I drove OT kwistenbiebel, meeeh...

edit: plus, I'm not sure I didn't tell bullpacks. No one to watch me

Scale Model: layer blending

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