Miguel Pozo fe39456ba5 Workbench: Fix: Performance Regressions
Optimize Workbench performance so it's on par with the previous
implementation.
Most of these changes are barely noticeable on powerful GPUs,
but can cause a notable performance improvement on old or low-end
hardware.

* Avoid unnecessary texture copies and draw directly to the viewport
   textures.
* Optimize-out depth/stencil reads, using stencil testing instead.
* Avoid using `Texture::clear` and use framebuffer clears instead.
* Avoid framebuffer state changes (always use the same attachments).
* Avoid constant variation of acquired `TextureFromPool`s.

Fix #113010

Pull Request: https://projects.blender.org/blender/blender/pulls/113251
2023-10-06 15:31:44 +02:00
2023-10-06 21:47:31 +11:00
2023-10-06 21:47:31 +11:00
2023-08-16 19:29:47 +02:00

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