camera tracking

[rajdarge]

if you have a sequence of video shot on a particular camera, tracked with after-effects and exported to 3ds Max: it creates a standard 3ds max camera.
Is there a way of making a sequence like this accurately track with a Vray Physcamera instead.

I ask this because the footage is shot with a camera for which I can use a .lens file for distortion in vray.
separately tracking it in max with its own plugin again resolves to a standard max camera, and that might be potentially different to the AE solution.

IMO the vray physcamera is far superior so I would like to use it to provide the render especially as I can match pretty accurately the DOF, vignetting etc.

is there a workflow that would work?
Raj

[Morbid Angel]

you probably will have best chance creating a vray physical cam and parenting it to 3ds max tracked cam, then linking any explicit attributes which have animation also to it.

[werticus]

I've used this in the past with success:

https://knowledge.autodesk.com/suppo...43E0A-htm.html

[rajdarge]

Thanks for the link, I was aware of linking one object to another. I was thinking more of focal length and aperture, and zoom which I thought I could wire together or use a script, but then I thought "can auto camera tracking even give me this information?"
Having only used it once, the piece of footage I was using, no zoom or focal change was performed.
Before I fully research this topic: is there a device that does this? That is record information about the zoom, focal length, focus points etc.
I know you can get this information from the EXIF on a still image, but from a video sequence?
Raj