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driconf/Intel: Add lower_depth_range_rate option workaround for Homerun Clash misrendering issue

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Intel has different Z interpolation float point rounding
than other mesa gpus
For example gl_Position.z = 0.0 will be interpolated to
gl_FragCoord.z = 0.5 for all gpus

gl_FragCoord = -0.00000001 will be interpolated to
gl_FragCoord.z = 0.4999999702 for Intel
and rounded to gl_FragCoord.z = 0.5 for other gpus

Games with LEQUAL depth func will fail depth test on Intel
and will pass it on other gpus in such case

This workaround lowers translated depth range
and several gl_FragCoord.z coords with extra small difference
will be translated to the same UINT16\UINT24\UINT32
value of an integer depth buffer

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/7199

Signed-off-by: Illia Polishchuk <illia.a.polishchuk@globallogic.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18412>
This commit is contained in:
Illia Polishchuk
2022-09-13 12:22:33 +03:00
committed by Marge Bot
parent dedd8affd8
commit 74658b01d2
16 changed files with 59 additions and 0 deletions
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1
src/intel/vulkan/anv_private.h
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@@ -997,6 +997,7 @@ struct anv_instance {
bool assume_full_subgroups;
bool limit_trig_input_range;
bool sample_mask_out_opengl_behaviour;
float lower_depth_range_rate;
};
VkResult anv_init_wsi(struct anv_physical_device *physical_device);