Advanced Compositing with UE5 and Ultimatte 12

| 1 min read

Today we're looking at how we can composite things on top of our greenscreen footage and put our little Giraffe in a field of grass using some post processing tricks at the Ultimatte.

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In this video, I demonstrate how to achieve advanced compositing in Unreal Engine 5 using the Ultimatte 12 plugin. I start by showing how to add 3D objects, like a cube, in front of a character on a green screen and explain how adjusting the custom depth stencil settings can control their occlusion properly. This method ensures the character is correctly masked while allowing objects to appear naturally in the foreground from all camera angles.

Next, I dive into handling more complex scenes with multiple layered elements, such as outdoor landscapes with plants, animals, and props. Instead of manually setting depth stencils on every object, I modify the post-process material to create a dynamic 3D depth mask. By blending the custom depth and scene depth passes, I generate an accurate occlusion effect that integrates seamlessly with camera movements and tracking.

Overall, you’ll learn a powerful workflow for 3D-based masking in UE5 that simplifies compositing intricate environments with Ultimatte 12. This approach eliminates tedious manual stencil assignments and enhances the realism of your final keyed shots, all while maintaining flexibility in your camera work.