I have made a 3d tracked scene with background image sequence. There is a composite tag on the floor plane with “Compositing Background” option ticked.
Now I need to render multipass exr (32bit) from cinema 4d to after effects, but there is a bug (or something) with the rendering.
This bug is a WHITE FRINGE between shadow and diffuse pass.
I have googled a lot, and found many questions regarding this problem (this seems to be a quite common problem with multi pass rendering?), but still there are not nearly any (useful) answers to solve this fringe problem.
So could someone please tell me what is the correct way to deal with this problem, and does anyone have a clew why this is happening?
I believe that this problem has something to do with the fact that the object is rendered against floorplane which has the background applied on it ( “Compositing Background” option ticked on)
It would be great to hear about your workflows when dealing with this problem?
Some things to keep in mind:
1. I have tried AE chokers, MinMax, Remove color matting, Pre comping etc. already and these are pretty crappy solutions as renderers should (in my opinion) do these passes correctly in the first place..
2. I would like to make rendering just once. (no extra rendering of separate diffuse or shadow passes)
3. Separate Shadow catcher material- pass with the floor is not an ideal option. (I want all passes with one go)
4. I cannot hide the floor plane as it gives affects the rendering (reflections and catches the shadows. (cannot render everything agains black background)
5 Antialiasing settings give some help, but wont get rid of the problem
6. This job has to be done with the standard renderer, so external renderers are not an option.
7. Problem exists in both Straight alpha and Premultiplied alpha versions of the render.
8. Tried with separate object mattes.. did not work
9. Tried compositing with linearize working space and without it.
Hope that someone could try to find a solution to this problem.. It would be nice to have some kind of a workshop to get rid of this (common?) problem and find solution..