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| author | Egor Yusov <egor.yusov@gmail.com> | 2018-07-06 05:04:23 +0000 |
|---|---|---|
| committer | Egor Yusov <egor.yusov@gmail.com> | 2018-07-06 05:04:23 +0000 |
| commit | 6c6dd47448a7478884f8856a8543964ab6d981fb (patch) | |
| tree | fc61c53a2a658d225a003ec7a8f993fe09d0eacf /Graphics/GraphicsEngine | |
| parent | Enabled back some Vulkan performance warnings (diff) | |
| download | DiligentCore-6c6dd47448a7478884f8856a8543964ab6d981fb.tar.gz DiligentCore-6c6dd47448a7478884f8856a8543964ab6d981fb.zip | |
Always using negative viewport height in Vulkan to be 100% consistent with Direct3D
Diffstat (limited to 'Graphics/GraphicsEngine')
| -rw-r--r-- | Graphics/GraphicsEngine/interface/DeviceCaps.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Graphics/GraphicsEngine/interface/DeviceCaps.h b/Graphics/GraphicsEngine/interface/DeviceCaps.h index 496f3599..aacedfcf 100644 --- a/Graphics/GraphicsEngine/interface/DeviceCaps.h +++ b/Graphics/GraphicsEngine/interface/DeviceCaps.h @@ -149,7 +149,11 @@ namespace Diligent { if (IsVulkanDevice()) { - static constexpr const NDCAttribs NDCAttribsVk {0.0f, 1.0f, 0.5f}; + // Note that Vulkan itself does not invert Y coordinate when transforming + // normalized device Y to window space. However, we use negative viewport + // height which achieves the same effect as in D3D, thererfore we need to + // invert y (see comments in DeviceContextVkImpl::CommitViewports() for details) + static constexpr const NDCAttribs NDCAttribsVk {0.0f, 1.0f, -0.5f}; return NDCAttribsVk; } else if (IsD3DDevice()) |