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VR: Properly support MSAA in OVR builds

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Fixes #338

Create the swap chain without MSAA, and the eye textures
with MSAA. The core issue was using the surface description
for the backbuffer for the DSV on the eye textures which did
not match.

This meethod follows both the oculus and openvr guidance on MSAA -
MSAA is configured on the eye render targets, but not on the swap
chain.
This commit is contained in:
Matthew Endsley 2015-06-04 19:15:05 -07:00
parent ad4b2f134f
commit 9a1b1f892c
2 changed files with 27 additions and 7 deletions
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22
src/renderer_d3d11.cpp
View file

@ -1725,18 +1725,29 @@ BX_PRAGMA_DIAGNOSTIC_POP();
DX_RELEASE(m_swapChain, 0);
SWAP_CHAIN_DESC_TYPE* scd = &m_scd;
#if BGFX_CONFIG_USE_OVR
SWAP_CHAIN_DESC_TYPE swapChainScd;
if ((m_flags & BGFX_RESET_HMD) && m_ovr.isInitialized())
{
swapChainScd = m_scd;
swapChainScd.SampleDesc = s_msaa[0];
scd = &swapChainScd;
}
#endif // BGFX_CONFIG_USE_OVR
#if BX_PLATFORM_WINRT
HRESULT hr;
hr = m_factory->CreateSwapChainForCoreWindow(m_device
, (::IUnknown*)g_platformData.nwh
, &m_scd
, scd
, NULL
, &m_swapChain
);
#else
HRESULT hr;
hr = m_factory->CreateSwapChain(m_device
, &m_scd
, scd
, &m_swapChain
);
#endif // BX_PLATFORM_WINRT
@ -2294,7 +2305,7 @@ BX_PRAGMA_DIAGNOSTIC_POP();
bx::write(&writer, magic);
TextureCreate tc;
tc.m_flags = BGFX_TEXTURE_RT;
tc.m_flags = BGFX_TEXTURE_RT|(((m_flags & BGFX_RESET_MSAA_MASK) >> BGFX_RESET_MSAA_SHIFT) << BGFX_TEXTURE_RT_MSAA_SHIFT);
tc.m_width = m_ovr.m_rtSize.w;
tc.m_height = m_ovr.m_rtSize.h;
tc.m_sides = 0;
@ -2702,10 +2713,11 @@ BX_PRAGMA_DIAGNOSTIC_POP();
bool m_wireframe;
#if BX_PLATFORM_WINRT
DXGI_SWAP_CHAIN_DESC1 m_scd;
typedef DXGI_SWAP_CHAIN_DESC1 SWAP_CHAIN_DESC_TYPE;
#else
DXGI_SWAP_CHAIN_DESC m_scd;
typedef DXGI_SWAP_CHAIN_DESC SWAP_CHAIN_DESC_TYPE;
#endif
SWAP_CHAIN_DESC_TYPE m_scd;
uint32_t m_flags;
uint32_t m_maxAnisotropy;

12
src/renderer_gl.cpp
View file

@ -2150,9 +2150,17 @@ namespace bgfx { namespace gl
m_resolution = _resolution;
m_resolution.m_flags = flags;
uint32_t flags = m_resolution.m_flags;
#if BGFX_CONFIG_USE_OVR
if ((flags & BGFX_RESET_HMD) && m_ovr.isInitialized())
{
flags &= ~BGFX_RESET_MSAA_MASK;
}
#endif // BGFX_CONFIG_OVR
setRenderContextSize(m_resolution.m_width
, m_resolution.m_height
, m_resolution.m_flags
, flags
);
updateCapture();
@ -2461,7 +2469,7 @@ namespace bgfx { namespace gl
bx::write(&writer, magic);
TextureCreate tc;
tc.m_flags = BGFX_TEXTURE_RT;
tc.m_flags = BGFX_TEXTURE_RT|(((m_resolution.m_flags & BGFX_RESET_MSAA_MASK) >> BGFX_RESET_MSAA_SHIFT) << BGFX_TEXTURE_RT_MSAA_SHIFT);;
tc.m_width = m_ovr.m_rtSize.w;
tc.m_height = m_ovr.m_rtSize.h;
tc.m_sides = 0;