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[3D] Depth Pass Questions
Hi there.
I’m using cinema4d for my animations, and I want to use after effects for my depth pass, because as I know, it is a lot faster than rendering depth effects (like dof) in the 3d package itself.
Ok, here is the first question:
Is it possible to create realistic dof with a depth pass ? The plugin I hear as “the best” is fruschluft depth of field, but it has some artefects on foreground objects, which can not be fixed by tweaking plugin settings. And the default “compound blur” in ae is… Not close to anything real.
I was a plugin called “depth of field” in after effects “3d channel” effects (&presets), but I have no idea about how to use it, and I could not find any possible solution to that on net.
The second question about depth pass, is, 3d fog. I’ve used fusion before, and it has a very nice plugin called “fog3d” (deep pixel) and I’m looking for something close, to add 3d fog to my rendered scene by using the depth info in my depth layer.
Again, there is a plugin called “Fog 3d” in “3d channel” effects in after effects, but once again, I2m unsure how it can be used… it doesnt even have a setting to select the depth layer..The last question – and hardest (for me) to explain, is, again a depth effect; which we can see on digital cameras “while taking photo or etc”.
I knew this effect could be made, but did not see any examples so far, and could not explain to anyone; but; a nice video by aixsponze did that; and here is a screenshot
as you can see, as the objects go further from camera, they start to have “blue” and “red” lines at their left and right, which is VERY close to a real optical effect on a digital camera shot.
I’m wonderig how something like this can be achieved using a depth layer (and I guess it is achieved with that only !).Ok. I know this is quite long, but I tried to -not to- keep this post boring as it becomes longer.
Time to shut up.Waiting for answers, thanks for reading.
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1 Reply
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That digital effect that you are looking for is called chromatic distortion. It has nothing to do with DOF, it has to do with the image sensor of the camera (called a CCD). The Photoshop manual talks a little about it in relation to camera RAW and how to remove it. You can, however, use those settings to add it, not remove it (just by ‘overcompensating’). The only problem is that you would have to open the image in Camera RAW, which means that you would have to batch edit an amination (which is possible).
I am sure there is an easier way to handle this, but that is what I would suggest.
– Spencer
PS
I just remembered that I saw a tutorial a little bit ago that shows you how to take a depth pass into photoshop and you can use it to do a rack defocus (animation and all). I am currently trying to find how to do this in AE for more animation ability and control
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