Tser When I set the render engine to XPU the render takes quite a bit longer than CPU, and I don't think you can get the same effect as a shadow matte (Shadow Catcher) with an environment light hdri, unless this ability is hidden somewhere.
I think it would be essential for later compositing where you load the background footage. It would be cool to have a ShadowCatcher Material.
I agree that it is essential that Karma needs a Shadow Catcher, Pixar has one with their USD render engine, so it is possible with Karma, I think all current render engines have a Shadow Catcher, you just need it integrated with the Beauty pass, not just in a Shadow pass.
In XPU it gets a lot slower using the bg plate node, and also the glossy reflections feature is not supported from what I've tested. A shadow catcher would be great indeed.
johancc In XPU it gets a lot slower using the bg plate node, and also the glossy reflections feature is not supported from what I've tested. A shadow catcher would be great indeed.
Ok, happy to see you guys see it also as an essential. So I will send a feature request :-)