Implementing multi-pass rendering in VisionOS

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Created Feb ’25

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I’m working on a Vision Pro app using Metal and need to implement multi-pass rendering. Specifically, I want to render intermediate results to a texture, then use that texture in a second pass for post-processing before presenting the final output.

What’s the best approach in visionOS? Should I use multiple render passes in a single command buffer or separate command buffers? Any insights on efficiently handling this in RealityKit or Metal?

Thanks!

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Answer 1

DTS Engineer OP

Apple

Mar ’25

We recommend starting with this Compositor Services sample project Interacting with virtual content blended with passthrough.

It provides a simple single-encoder rendering pipeline that you can repurpose for more sophisticated techniques like multi-pass rendering. The Render class is where you can use whatever Metal API you like (that's supported on device).

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