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VideoBackends: Use vertex shader depth range if ztexture is used.

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This commit is contained in:
Jules Blok
2017-02-24 15:16:28 +01:00
parent bde8126913
commit a15555fe03
8 changed files with 69 additions and 60 deletions
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47
Source/Core/VideoBackends/OGL/Render.cpp
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@ -1135,41 +1135,36 @@ void Renderer::SetViewport()
glViewport(iceilf(X), iceilf(Y), iceilf(Width), iceilf(Height));
}
// Set the reversed depth range.
if (g_ActiveConfig.backend_info.bSupportsOversizedDepthRanges)
if (!g_ActiveConfig.backend_info.bSupportsOversizedDepthRanges &&
!g_ActiveConfig.backend_info.bSupportsDepthClamp)
{
glDepthRangedNV(max_depth, min_depth);
// There's no way to support oversized depth ranges in this situation. Let's just clamp the
// range to the maximum value supported by the console GPU and hope for the best.
min_depth = MathUtil::Clamp(min_depth, 0.0f, GX_MAX_DEPTH);
max_depth = MathUtil::Clamp(max_depth, 0.0f, GX_MAX_DEPTH);
}
else
if (UseVertexDepthRange())
{
// If an oversized depth range is used, we need to calculate the depth range in the
// vertex shader.
if (g_ActiveConfig.backend_info.bSupportsDepthClamp &&
(fabs(xfmem.viewport.zRange) > 16777215.0f || fabs(xfmem.viewport.farZ) > 16777215.0f))
// We need to ensure depth values are clamped the maximum value supported by the console GPU.
// Taking into account whether the depth range is inverted or not.
if (xfmem.viewport.zRange < 0.0f)
{
// We need to ensure depth values are clamped the maximum value supported by the console GPU.
// Taking into account whether the depth range is inverted or not.
if (xfmem.viewport.zRange < 0.0f)
{
min_depth = GX_MAX_DEPTH;
max_depth = 0.0f;
}
else
{
min_depth = 0.0f;
max_depth = GX_MAX_DEPTH;
}
min_depth = GX_MAX_DEPTH;
max_depth = 0.0f;
}
else
{
// There's no way to support oversized depth ranges in this situation. Let's just clamp the
// range to the maximum value supported by the console GPU and hope for the best.
min_depth = MathUtil::Clamp(min_depth, 0.0f, GX_MAX_DEPTH);
max_depth = MathUtil::Clamp(max_depth, 0.0f, GX_MAX_DEPTH);
min_depth = 0.0f;
max_depth = GX_MAX_DEPTH;
}
glDepthRangef(max_depth, min_depth);
}
// Set the reversed depth range.
if (g_ActiveConfig.backend_info.bSupportsOversizedDepthRanges)
glDepthRangedNV(max_depth, min_depth);
else
glDepthRangef(max_depth, min_depth);
}
void Renderer::ClearScreen(const EFBRectangle& rc, bool colorEnable, bool alphaEnable, bool zEnable,