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[C4D] General Discussion / Re: Shadow Catcher material not blocking light - causing double shadows
« on: 2019-02-28, 03:41:26 »
Yeah, I think this is a difference between how C4D and Max handle render/composite tags?... but I agree it seems like there should be a new kind of material to solve the issue.
SO... I figured out a different way around the problem which will take more work and compositing... but that's kind of what I'm trying to do so I might as well do it the hard way.
I'm going to render a pass with alpha that has just all the 3D elements with the correct lighting and shadows applied to them, and render a pass with the background video and the shadow catcher material without the 3D parts, then layer them in After effects.
From that point, I will put the original footage on the bottom, the shadow catcher render above that, then the 3D elements above that. But I will animate a vector mask of the double shadow footage to remove that part of it using motion tracking on the original footage in AE... so there will be normal shadows on the bottom and right, then the top left will basically be just the original footage showing through the mask.
I think it'll work.
SO... I figured out a different way around the problem which will take more work and compositing... but that's kind of what I'm trying to do so I might as well do it the hard way.
I'm going to render a pass with alpha that has just all the 3D elements with the correct lighting and shadows applied to them, and render a pass with the background video and the shadow catcher material without the 3D parts, then layer them in After effects.
From that point, I will put the original footage on the bottom, the shadow catcher render above that, then the 3D elements above that. But I will animate a vector mask of the double shadow footage to remove that part of it using motion tracking on the original footage in AE... so there will be normal shadows on the bottom and right, then the top left will basically be just the original footage showing through the mask.
I think it'll work.