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Michael Jones 77c3e67d3d Cycles: Improved render start/stop responsiveness on Metal ...

All kernel specialisation is now performed in the background regardless of kernel type, meaning that the first render will be visible a few seconds sooner. The only exception is during benchmark warm up, in which case we wait for all kernels to be cached. When stopping a render, we call a new `cancel()` method on the device which causes any outstanding compilation work to be cancelled, and we destroy the device in a detached thread so that any stale queued compilations can be safely purged without blocking the UI for longer than necessary.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D16371

2023-01-04 16:00:53 +00:00

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