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Blender Discussions

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Smoke simulation really slow

Hello RPR-users,

I'm currently trying out RPR under macOS to make use of my RX 5700 XT graphics card.

I noticed, that using Blenders in built smoke simulation the rendering inside viewport render is crazy slow (for me 50 seconds per frame) compared with the cycles renderer (approx 5 seconds). While RPR renders the viewport my Mac Pro 2013 becomes unusable (besides cursor moving no interacting of the system - feels like a complete freeze).

Are there currently known limitations? Has anyone else discovered this?

One thing I noticed is when switching back from Cycles to RPR the frame seems to render quite fast (3 seconds). As soon as I jump to another frame in the timeline the above described happens.

Best regards,

Jonas

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