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Use Vertex Depth Range when zRange Exceeds farZ

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When the inverted depth range is unsupported and zRange is greater than farZ then min_depth becomes a negative value and far_depth will then exceed a depth of 1.0 (which is outside the scope of most backends and greater than GX_MAX_DEPTH of the console).

This happens when the backend supports depth clamping the min_depth is not clamped to zero.
This commit is contained in:
Patrick Ferry
2023-09-28 03:00:04 +01:00
parent 467c7435d1
commit 9e950c6959
1 changed files with 8 additions and 2 deletions
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10
Source/Core/VideoCommon/VertexShaderManager.cpp
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@ -168,8 +168,14 @@ bool VertexShaderManager::UseVertexDepthRange()
return true; return true;
// If an inverted depth range is unsupported, we also need to check if the range is inverted. // If an inverted depth range is unsupported, we also need to check if the range is inverted.
if (!g_ActiveConfig.backend_info.bSupportsReversedDepthRange && xfmem.viewport.zRange < 0.0f) if (!g_ActiveConfig.backend_info.bSupportsReversedDepthRange)
return true; {
if (xfmem.viewport.zRange < 0.0f)
return true;
if (xfmem.viewport.zRange > xfmem.viewport.farZ)
return true;
}
// If an oversized depth range or a ztexture is used, we need to calculate the depth range // If an oversized depth range or a ztexture is used, we need to calculate the depth range
// in the vertex shader. // in the vertex shader.