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Vignette Effect
show user profile  HG
Hi everybody..
I have a question about Vignette in Vray.
Is it a different if I render my scene and after that give a vignette effect in aftereffects or in the VRayPhysicalCamera give the vignetting effect in Camera Setting ?
Tnx in advance
read 496 times
2/9/2016 8:49:24 PM (last edit: 2/9/2016 8:49:24 PM)
show user profile  9krausec
I'd highly recommend doing a vignette in post production. That way you have full control to change it at your desire.

The only thing I personally would make sure to bake into your renders would be motion blur. You can find tools that will allow you to put it into post, but from the way I understand it, MB of objects going away from the camera usually turns out not so good (as opposed to objects running across the frame).

- Portfolio-

read 490 times
2/9/2016 9:04:14 PM (last edit: 2/9/2016 9:04:14 PM)
show user profile  HG
Is there no different between this too Vignette ?
I have the feeling that there is a difference ...
but tnx for your help
read 481 times
2/9/2016 9:32:41 PM (last edit: 2/9/2016 9:32:41 PM)
show user profile  Bolteon
Of course there's a lot of difference.

You're talking about a mathematics model that approximates the falloff of light as it reaches through a lens system towards some sort of sensor/film back.

Doing it in post is usually just a matter of darkening the outer edges of a frame.

That being said, unless you're the one making the creative choices; and you know you'll stick with what you decide upon, leave it to post.

-Marko Mandaric

read 479 times
2/9/2016 9:39:22 PM (last edit: 2/9/2016 9:39:22 PM)
show user profile  Garp
You could render a strong vignette on a white uniform background and use it as a mask in post.
Best of both worlds.

read 462 times
2/9/2016 11:47:16 PM (last edit: 2/9/2016 11:47:16 PM)
show user profile  Error404
so long as your highlights aren't clipped (can after effects handle files with ranges above 1.0?) I see no reason to bake in the vignette to the render. Vignette is very simple and fast to calculate in post, and you really don't gain a whole lot by doing in the render.

Unless you are rendering to an 8 or 16 bit format that clips the highlights. In which case I'd do it in the render.

Depending on situations, I'll sometimes bake in DOF or even lens distortion. But I take that on a case by case basis. Vignette, almost 100% of the time is done in post. -

read 445 times
2/10/2016 1:20:05 AM (last edit: 2/10/2016 1:21:09 AM)
show user profile  HG
my Scene is a Gold Ring. And I render it in exr file 32 bit.
because I want to use the light information in aftereffect. I have my aftereffect in 32 bpc . and my glow and star filter is based on the reflection intensity of the metal. I used always Vignette effect in aftereffect, but this time I tried it once in VRay Camera, and I found a small different.
But I think that I can do it in the Grap's way. to Render a strong Vignette on a white uniform background and use it as a Mask in aftereffect .
Tnx a lot for all your Help

read 421 times
2/10/2016 9:21:57 AM (last edit: 2/10/2016 9:21:57 AM)
show user profile  Nik Clark

That is all.

read 416 times
2/10/2016 10:28:06 AM (last edit: 2/10/2016 10:28:06 AM)
show user profile  Bolteon
Grap grap.

-Marko Mandaric

read 401 times
2/10/2016 4:09:50 PM (last edit: 2/10/2016 4:09:50 PM)
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