Danylo Piliaiev 2c683519e2 turnip: Try harder to keep LRZ valid and fix a few edge cases
Refactored tu6_calculate_lrz_state and added comments.

1) If there is no depth write we could keep LRZ valid with any
compare op, we just have to temporary disable LRZ for incompatible
ops in such case.

2) Found that VK_COMPARE_OP_EQUAL is not compatible with LRZ,
and since it doesn't change LRZ buffer - LRZ could be just
temporary disabled. This fixes rendering of grass/trees in
PUBG mobile on angle.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6127

Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16014>
2022-04-19 18:06:58 +00:00
2022-04-08 17:48:13 +00:00
2022-01-19 15:17:17 +00:00
2022-04-12 10:42:31 +00:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================


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