radv: replace discard with demote for Quantic Dream games
Detroit: Become Human uses dFdx/dFdy immediately after a quad-divergent discard, which can cause the image to become white. Signed-off-by: Rhys Perry <pendingchaos02@gmail.com> Reviewed-by: Daniel Schürmann <daniel@schuermann.dev> Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Cc: <mesa-stable@lists.freedesktop.org> Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3212 Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5991>
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@ -571,7 +571,8 @@ radv_handle_per_app_options(struct radv_instance *instance,
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instance->debug_flags |= RADV_DEBUG_ZERO_VRAM;
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} else if (!strcmp(engine_name, "Quantic Dream Engine")) {
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/* Fix various artifacts in Detroit: Become Human */
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instance->debug_flags |= RADV_DEBUG_ZERO_VRAM;
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instance->debug_flags |= RADV_DEBUG_ZERO_VRAM |
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RADV_DEBUG_DISCARD_TO_DEMOTE;
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}
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}
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