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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 366 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 360 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 351 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 349 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 332 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 315 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 291 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.

Click here to send me an emailClick here to visit my websiteClick here to visit my photo gallery on Flickr

read 286 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 271 times
2/10/2016 4:09:50 PM (last edit: 2/10/2016 4:09:50 PM)
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