Shadow Catcher 5.7 Movie Render Queue

Development Cinematics & Media
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This question was created in reference to: [Is it possible to render a .png or .exr with the shadow on the floor [Content removed]

Hello, I’ve had a look on here for similar posts, on this topic, but most are quite old and I was wondering if there was anything new in the way of outputting a shadow catcher pass from MRQ?

Our use case is a car, where we want to only have the shadow cast by the car on the floor as a single pass.

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Steps to Reproduce

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Hey Elliot,

Unfortunately, there is nothing new in the engine that will let you natively generate a shadow pass like in other renderers. Though it’s getting more traction here internally. The best way I have found is just the super old school way.

  1. in MRG with a modifier assign a white “lambert” on everything at render time
  2. in MRG with a modifier disable shadow casting on anything you don’t want to cast a shadow in the shadow pass
  3. in MRG with a modifier hide the shadowing object (car) and enable Cast Shadows while hidden

This will give you a pass you can mult down your BG Bty render.

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Hi Shaun, thanks for confirming this.

I got a semi good result following this tutorial - very similar to what you have said.

I found the movie render graph to be a solid option to make the configurations to geometry as you mentioned (changing materials & altering actor settings like the cast shadows while hidden).