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1

How to Matte 3D scenes with multiple layers

New Here ,
Oct 23, 2024 Oct 23, 2024

Hello again, today i have a question about working with Set Matte (or similar effects like CC Composite) inside a 3D Environment. I find it very peculiar, that effects like cc composite have no option to use the selected layer like it is projected inside of the viewport. In 2D this is not a big problem, but when i for example want to build a complex matte for something inside of my 3D Environment, there is no way for me to do so, except by copy-pasting and pre-comping a bunch of layers or other silly solutions.

I made a quick example to show my problem, before i explain further:
3D circle:

FynnDebus_1-1729713510962.png

Wrong Matte:

FynnDebus_2-1729713531511.png

Correct Matte:

FynnDebus_3-1729713547664.png

 

I understand why this happens, but i wish there was a feature to make Set Matte's output equivalent to the Track Matte feature, because i want to track matte multiple layers at one.

 

So heres my question:
What is the best (most render efficient and cleanest) way to achieve the intended behavior for more than one layer (for example imagine a complex (3D) scene with 20 layers, where i want to matte 15 of them onto a solid), since you can only Track Matte one layer (Why isnt this a feature???)?

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