void DistortionRenderer::SubmitEye(int eyeId, const ovrTexture* eyeTexture)
{
//Doesn't do a lot in here??
const ovrD3D9Texture* tex = (const ovrD3D9Texture*)eyeTexture;
//Write in values
eachEye[eyeId].texture = tex->D3D9.pTexture;
// Its only at this point we discover what the viewport of the texture is.
// because presumably we allow users to realtime adjust the resolution.
eachEye[eyeId].TextureSize = tex->D3D9.Header.TextureSize;
eachEye[eyeId].RenderViewport = tex->D3D9.Header.RenderViewport;
const ovrEyeRenderDesc& erd = RState.EyeRenderDesc[eyeId];
ovrHmd_GetRenderScaleAndOffset( erd.Fov,
eachEye[eyeId].TextureSize, eachEye[eyeId].RenderViewport,
eachEye[eyeId].UVScaleOffset );
if (RState.DistortionCaps & ovrDistortionCap_FlipInput)
{
eachEye[eyeId].UVScaleOffset[0].y = -eachEye[eyeId].UVScaleOffset[0].y;
eachEye[eyeId].UVScaleOffset[1].y = 1.0f - eachEye[eyeId].UVScaleOffset[1].y;
}
}
void initGl() {
RiftGlfwApp::initGl();
for_each_eye([&](ovrEyeType eye){
EyeArg & eyeArg = eyeArgs[eye];
ovrFovPort fov = hmdDesc.DefaultEyeFov[eye];
ovrEyeRenderDesc renderDesc = ovrHmd_GetRenderDesc(hmd, eye, fov);
// Set up the per-eye projection matrix
eyeArg.projection = Rift::fromOvr(
ovrMatrix4f_Projection(fov, 0.01, 100000, true));
eyeArg.viewOffset = glm::translate(glm::mat4(), Rift::fromOvr(renderDesc.ViewAdjust));
ovrRecti texRect;
texRect.Size = ovrHmd_GetFovTextureSize(hmd, eye,
hmdDesc.DefaultEyeFov[eye], 1.0f);
texRect.Pos.x = texRect.Pos.y = 0;
eyeArg.frameBuffer.init(Rift::fromOvr(texRect.Size));
ovrVector2f scaleAndOffset[2];
ovrHmd_GetRenderScaleAndOffset(fov, texRect.Size,
texRect, scaleAndOffset);
eyeArg.scale = Rift::fromOvr(scaleAndOffset[0]);
eyeArg.offset = Rift::fromOvr(scaleAndOffset[1]);
ovrHmd_CreateDistortionMesh(hmd, eye, fov, 0, &eyeArg.mesh);
eyeArg.meshVao = gl::VertexArrayPtr(new gl::VertexArray());
eyeArg.meshVao->bind();
eyeArg.meshIbo = gl::IndexBufferPtr(new gl::IndexBuffer());
eyeArg.meshIbo->bind();
size_t bufferSize = eyeArg.mesh.IndexCount * sizeof(unsigned short);
eyeArg.meshIbo->load(bufferSize, eyeArg.mesh.pIndexData);
eyeArg.meshVbo = gl::VertexBufferPtr(new gl::VertexBuffer());
eyeArg.meshVbo->bind();
bufferSize = eyeArg.mesh.VertexCount * sizeof(ovrDistortionVertex);
eyeArg.meshVbo->load(bufferSize, eyeArg.mesh.pVertexData);
size_t stride = sizeof(ovrDistortionVertex);
size_t offset = offsetof(ovrDistortionVertex, Pos);
glEnableVertexAttribArray(gl::Attribute::Position);
glVertexAttribPointer(gl::Attribute::Position, 2, GL_FLOAT, GL_FALSE,
stride, (void*)offset);
offset = offsetof(ovrDistortionVertex, TexG);
glEnableVertexAttribArray(gl::Attribute::TexCoord0);
glVertexAttribPointer(gl::Attribute::TexCoord0, 2, GL_FLOAT, GL_FALSE,
stride, (void*)offset);
gl::VertexArray::unbind();
gl::Program::clear();
});
distortionProgram = GlUtils::getProgram(
Resource::SHADERS_DISTORTION_VS,
Resource::SHADERS_DISTORTION_FS
);
}
int RiftAppSkeleton::ConfigureClientRendering()
{
if (m_Hmd == NULL)
return 1;
ovrSizei l_TextureSizeLeft = ovrHmd_GetFovTextureSize(m_Hmd, ovrEye_Left, m_Hmd->DefaultEyeFov[0], 1.0f);
ovrSizei l_TextureSizeRight = ovrHmd_GetFovTextureSize(m_Hmd, ovrEye_Right, m_Hmd->DefaultEyeFov[1], 1.0f);
ovrSizei l_TextureSize;
l_TextureSize.w = l_TextureSizeLeft.w + l_TextureSizeRight.w;
l_TextureSize.h = std::max(l_TextureSizeLeft.h, l_TextureSizeRight.h);
// Renderbuffer init - we can use smaller subsets of it easily
deallocateFBO(m_renderBuffer);
allocateFBO(m_renderBuffer, l_TextureSize.w, l_TextureSize.h);
l_EyeTexture[0].OGL.Header.API = ovrRenderAPI_OpenGL;
l_EyeTexture[0].OGL.Header.TextureSize.w = l_TextureSize.w;
l_EyeTexture[0].OGL.Header.TextureSize.h = l_TextureSize.h;
l_EyeTexture[0].OGL.Header.RenderViewport.Pos.x = 0;
l_EyeTexture[0].OGL.Header.RenderViewport.Pos.y = 0;
l_EyeTexture[0].OGL.Header.RenderViewport.Size.w = l_TextureSize.w/2;
l_EyeTexture[0].OGL.Header.RenderViewport.Size.h = l_TextureSize.h;
l_EyeTexture[0].OGL.TexId = m_renderBuffer.tex;
// Right eye the same, except for the x-position in the texture...
l_EyeTexture[1] = l_EyeTexture[0];
l_EyeTexture[1].OGL.Header.RenderViewport.Pos.x = (l_TextureSize.w+1) / 2;
m_RenderViewports[0] = l_EyeTexture[0].OGL.Header.RenderViewport;
m_RenderViewports[1] = l_EyeTexture[1].OGL.Header.RenderViewport;
const int distortionCaps =
ovrDistortionCap_Chromatic |
ovrDistortionCap_TimeWarp |
ovrDistortionCap_Vignette;
// Generate distortion mesh for each eye
for (int eyeNum = 0; eyeNum < 2; eyeNum++)
{
// Allocate & generate distortion mesh vertices.
ovrHmd_CreateDistortionMesh(
m_Hmd,
m_EyeRenderDesc[eyeNum].Eye,
m_EyeRenderDesc[eyeNum].Fov,
distortionCaps,
&m_DistMeshes[eyeNum]);
ovrHmd_GetRenderScaleAndOffset(
m_EyeRenderDesc[eyeNum].Fov,
l_TextureSize,
m_RenderViewports[eyeNum],
&m_uvScaleOffsetOut[2*eyeNum]);
}
return 0;
}
void GetRenderScaleAndOffset(ovrFovPort fov, const math::vector2di& textureSize, const math::recti& renderVP, math::vector2d& scale, math::vector2d& offset)
{
ovrSizei sz;
sz.w = textureSize.x;
sz.h = textureSize.y;
ovrRecti r;
r.Pos.x = renderVP.ULPoint.x;
r.Pos.y = renderVP.ULPoint.y;
r.Size.w = renderVP.getWidth();
r.Size.h = renderVP.getHeight();
ovrVector2f so[2];
ovrHmd_GetRenderScaleAndOffset(fov, sz, r, so);
scale.set(so[0].x, so[0].y);
offset.set(so[1].x, so[1].y);
}
HRESULT InitOculusRiftObjects(unsigned distortionCaps, ovrHmd HMD)
{
HRESULT hr = S_OK;
// ステレオ描画設定を取得
// レンダーターゲットの作成するためのサイズ決定に必要。
// なお DK1 ではかなり変なサイズで返ってくるのでこのまま信用していいのかは不明
ovrSizei recommenedTex0Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Left, HMDDesc.DefaultEyeFov[0], 1.0f);
ovrSizei recommenedTex1Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Right, HMDDesc.DefaultEyeFov[1], 1.0f);
ovrSizei RenderTargetSize;
RenderTargetSize.w = recommenedTex0Size.w + recommenedTex1Size.w;
RenderTargetSize.h = max(recommenedTex0Size.h, recommenedTex1Size.h);
{
// レンダーターゲット用のテクスチャを作成する
// ここにシーンを描画する
D3D11_TEXTURE2D_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.Width = RenderTargetSize.w;
desc.Height = RenderTargetSize.h;
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
desc.SampleDesc.Count = 1;
desc.Usage = D3D11_USAGE_DEFAULT;
desc.BindFlags = D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE;
//テクスチャを作成する
g_pd3dDevice->CreateTexture2D(&desc, NULL, &g_pTextureOculus);
//シェーダーリソースビュー作ることで描画元として使用出来る
g_pd3dDevice->CreateShaderResourceView(g_pTextureOculus, NULL, &g_pShaderResViewOculus);
//レンダーターゲットビューを作る
g_pd3dDevice->CreateRenderTargetView(g_pTextureOculus, NULL, &g_pRenderTargetViewOculus);
// 実際に作成されたサイズを取得しておく（ミスがあるかもしれない）
g_pTextureOculus->GetDesc(&desc);
RenderTargetSize.w = desc.Width;
RenderTargetSize.h = desc.Height;
//深度バッファ作成（ステンシル）
D3D11_TEXTURE2D_DESC descDepth;
ZeroMemory(&descDepth, sizeof(descDepth));
descDepth.Width = RenderTargetSize.w;
descDepth.Height = RenderTargetSize.h;
descDepth.MipLevels = 1;
descDepth.ArraySize = 1;
descDepth.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
descDepth.SampleDesc.Count = 1;
descDepth.SampleDesc.Quality = 0;
descDepth.Usage = D3D11_USAGE_DEFAULT;
descDepth.BindFlags = D3D11_BIND_DEPTH_STENCIL;
descDepth.CPUAccessFlags = 0;
descDepth.MiscFlags = 0;
g_pd3dDevice->CreateTexture2D(&descDepth, NULL, &g_pDepthStencilOculus);
//ステンシルビューの作成
D3D11_DEPTH_STENCIL_VIEW_DESC descDSV;
ZeroMemory(&descDSV, sizeof(descDSV));
descDSV.Format = descDepth.Format;
descDSV.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
descDSV.Texture2D.MipSlice = 0;
g_pd3dDevice->CreateDepthStencilView(g_pDepthStencilOculus, &descDSV, &g_pDepthStencilViewOculus);
}
// それぞれの目に対応する描画のための情報を取得します。
ovrFovPort eyeFov[2] = { HMDDesc.DefaultEyeFov[0], HMDDesc.DefaultEyeFov[1] };
EyeRenderDesc[0] = ovrHmd_GetRenderDesc(HMD, ovrEye_Left, eyeFov[0]);
EyeRenderDesc[1] = ovrHmd_GetRenderDesc(HMD, ovrEye_Right, eyeFov[1]);
// HMDで使用する機能を設定します。
ovrHmd_SetEnabledCaps(HMD, ovrHmdCap_LowPersistence |
ovrHmdCap_LatencyTest);
// センサーの使用を開始します。
// YawCorrection(?) Orientation(姿勢)、Position(位置)を取得できるようにします。
ovrHmd_StartSensor(HMD, ovrSensorCap_Orientation |
ovrSensorCap_YawCorrection |
ovrSensorCap_Position, 0);
//ビューポートの情報を格納します。
EyeRenderViewport[0].Pos.x = 0;
EyeRenderViewport[0].Pos.y = 0;
EyeRenderViewport[0].Size.w = RenderTargetSize.w / 2;
EyeRenderViewport[0].Size.h = RenderTargetSize.h;
EyeRenderViewport[1].Pos.x = (RenderTargetSize.w + 1) / 2;
EyeRenderViewport[1].Pos.y = 0;
EyeRenderViewport[1].Size = EyeRenderViewport[0].Size;
//ゆがませるメッシュをそれぞれの目に対応するように作成する
for (int eyeNum = 0; eyeNum < 2; eyeNum++)
{
// メッシュデータを取得する
ovrDistortionMesh meshData;
ovrHmd_CreateDistortionMesh(HMD,
EyeRenderDesc[eyeNum].Eye, EyeRenderDesc[eyeNum].Fov,
distortionCaps, &meshData);
ovrHmd_GetRenderScaleAndOffset(EyeRenderDesc[eyeNum].Fov,
RenderTargetSize, EyeRenderViewport[eyeNum],
(ovrVector2f*)UVScaleOffset[eyeNum]);
// こちらで用意した頂点形式にあうようにパースします。
DistortionVertex * pVBVerts = (DistortionVertex*)OVR_ALLOC(
sizeof(DistortionVertex)* meshData.VertexCount);
DistortionVertex * v = pVBVerts;
ovrDistortionVertex * ov = meshData.pVertexData;
for (unsigned vertNum = 0; vertNum < meshData.VertexCount; vertNum++)
{
v->Pos.x = ov->Pos.x;
v->Pos.y = ov->Pos.y;
v->TexR = (*(ovrVector2f*)&ov->TexR);
v->TexG = (*(ovrVector2f*)&ov->TexG);
v->TexB = (*(ovrVector2f*)&ov->TexB);
v->Col[0] = v->Col[1] = v->Col[2] = (BYTE)(ov->VignetteFactor*255.99f);
v->Col[3] = (BYTE)(ov->TimeWarpFactor*255.99f);
v++; ov++;
}
//メッシュの頂点データを用いて頂点バッファを作成します。
D3D11_BUFFER_DESC bd = { 0 };
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(DistortionVertex)* meshData.VertexCount;
bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
bd.CPUAccessFlags = 0;
D3D11_SUBRESOURCE_DATA InitData = { 0 };
InitData.pSysMem = pVBVerts;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pVertexBufferOculus[eyeNum]);
if (FAILED(hr))
return hr;
//同様にインデックスバッファを作成します。
bd.ByteWidth = sizeof(unsigned short)* meshData.IndexCount;
bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
bd.CPUAccessFlags = 0;
InitData.pSysMem = meshData.pIndexData;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pIndexBufferOculus[eyeNum]);
if (FAILED(hr))
return hr;
oculusIndexCount = meshData.IndexCount;
OVR_FREE(pVBVerts);
ovrHmd_DestroyDistortionMesh(&meshData);
}
{
//頂点シェーダーをコンパイル
ID3DBlob* pBlob = NULL;
hr = CompileShaderFromFile("OculusRift.hlsl", "VS_TimeWarp", "vs_4_0", &pBlob);
if (FAILED(hr))
{
MessageBox(NULL, "ピクセルシェーダーを読み込めませんでした。", "Error", MB_OK);
return hr;
}
//ピクセルシェーダーからピクセルシェーダのオブジェクトを作成
hr = g_pd3dDevice->CreateVertexShader(pBlob->GetBufferPointer(), pBlob->GetBufferSize(), NULL, &g_pVertexShaderOculus);
if (FAILED(hr))
return hr;
//インプットレイアウトの形式
static D3D11_INPUT_ELEMENT_DESC DistortionMeshVertexDesc[] =
{
{ "Position", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TexCoord", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 8, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TexCoord", 1, DXGI_FORMAT_R32G32_FLOAT, 0, 16, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TexCoord", 2, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "Color", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, 32, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
//インプットレイアウトの作成
hr = g_pd3dDevice->CreateInputLayout(DistortionMeshVertexDesc, ARRAYSIZE(DistortionMeshVertexDesc), pBlob->GetBufferPointer(),
pBlob->GetBufferSize(), &g_pVertexLayoutOculus);
if (FAILED(hr))
return hr;
pBlob->Release();
}
{
//ピクセルシェーダーをコンパイル
ID3DBlob* pBlob = NULL;
hr = CompileShaderFromFile("OculusRift.hlsl", "PS_Oculus", "ps_4_0", &pBlob);
if (FAILED(hr))
{
MessageBox(NULL, "ピクセルシェーダーを読み込めませんでした。", "Error", MB_OK);
return hr;
}
//ピクセルシェーダーからピクセルシェーダのオブジェクトを作成
hr = g_pd3dDevice->CreatePixelShader(pBlob->GetBufferPointer(), pBlob->GetBufferSize(), NULL, &g_pPixelShaderOculus);
pBlob->Release();
if (FAILED(hr))
return hr;
}
// コンスタントバッファの作成
// ゆがませるメッシュを描画するためのシェーダー用の設定
{
D3D11_BUFFER_DESC bd = { 0 };
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(OculusRiftSettings);
bd.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
bd.CPUAccessFlags = 0;
hr = g_pd3dDevice->CreateBuffer(&bd, NULL, &g_pConstantBufferOculus);
if (FAILED(hr))
return hr;
}
return hr;
}
/**
* Render the Oculus Rift View.
***/
void* OculusRenderer::Provoke(void* pThis, int eD3D, int eD3DInterface, int eD3DMethod, DWORD dwNumberConnected, int& nProvokerIndex)
{
// return if wrong call
if ((eD3D >= (int)AQU_DirectXVersion::DirectX_9_0) &&
(eD3D <= (int)AQU_DirectXVersion::DirectX_9_29))
{
if (((eD3DInterface == INTERFACE_IDIRECT3DDEVICE9) &&
(eD3DMethod == METHOD_IDIRECT3DDEVICE9_PRESENT)) ||
((eD3DInterface == INTERFACE_IDIRECT3DDEVICE9) &&
(eD3DMethod == METHOD_IDIRECT3DDEVICE9_ENDSCENE)) ||
((eD3DInterface == INTERFACE_IDIRECT3DSWAPCHAIN9) &&
(eD3DMethod == METHOD_IDIRECT3DSWAPCHAIN9_PRESENT)))
{
(pThis);
}
else return nullptr;
}
else
return nullptr;
// get input data
if (m_paInput[(int)ORN_Decommanders::LeftTexture])
m_pcTextureLeft = *(LPDIRECT3DTEXTURE9*)m_paInput[(int)ORN_Decommanders::LeftTexture];
else
m_pcTextureLeft = nullptr;
if (m_paInput[(int)ORN_Decommanders::RightTexture])
m_pcTextureRight = *(LPDIRECT3DTEXTURE9*)m_paInput[(int)ORN_Decommanders::RightTexture];
else m_pcTextureRight = nullptr;
if (m_paInput[(int)ORN_Decommanders::DistortionVertexBufferLeft])
if (*(LPDIRECT3DVERTEXBUFFER9**)m_paInput[(int)ORN_Decommanders::DistortionVertexBufferLeft])
m_pcDistortionVertexBufferLeft = **(LPDIRECT3DVERTEXBUFFER9**)m_paInput[(int)ORN_Decommanders::DistortionVertexBufferLeft];
else m_pcDistortionVertexBufferLeft = nullptr;
else m_pcDistortionVertexBufferLeft = nullptr;
if (m_paInput[(int)ORN_Decommanders::DistortionVertexBufferRight])
if (*(LPDIRECT3DVERTEXBUFFER9**)m_paInput[(int)ORN_Decommanders::DistortionVertexBufferRight])
m_pcDistortionVertexBufferRight = **(LPDIRECT3DVERTEXBUFFER9**)m_paInput[(int)ORN_Decommanders::DistortionVertexBufferRight];
else m_pcDistortionVertexBufferRight = nullptr;
else m_pcDistortionVertexBufferRight = nullptr;
if (m_paInput[(int)ORN_Decommanders::DistortionIndexBufferLeft])
if (*(LPDIRECT3DINDEXBUFFER9**)m_paInput[(int)ORN_Decommanders::DistortionIndexBufferLeft])
m_pcDistortionIndexBufferLeft = **(LPDIRECT3DINDEXBUFFER9**)m_paInput[(int)ORN_Decommanders::DistortionIndexBufferLeft];
else m_pcDistortionIndexBufferLeft = nullptr;
else m_pcDistortionIndexBufferLeft = nullptr;
if (m_paInput[(int)ORN_Decommanders::DistortionIndexBufferRight])
if (*(LPDIRECT3DINDEXBUFFER9**)m_paInput[(int)ORN_Decommanders::DistortionIndexBufferRight])
m_pcDistortionIndexBufferRight = **(LPDIRECT3DINDEXBUFFER9**)m_paInput[(int)ORN_Decommanders::DistortionIndexBufferRight];
else m_pcDistortionIndexBufferRight = nullptr;
else m_pcDistortionIndexBufferRight = nullptr;
if (m_paInput[(int)ORN_Decommanders::OculusVertexDeclaration])
if (*(LPDIRECT3DVERTEXDECLARATION9**)m_paInput[(int)ORN_Decommanders::OculusVertexDeclaration])
m_pcVertexDecl = **(LPDIRECT3DVERTEXDECLARATION9**)m_paInput[(int)ORN_Decommanders::OculusVertexDeclaration];
else m_pcVertexDecl = nullptr;
else m_pcVertexDecl = nullptr;
if (m_paInput[(int)ORN_Decommanders::DefaultEyeFovLeft])
if (*(ovrFovPort**)m_paInput[(int)ORN_Decommanders::DefaultEyeFovLeft])
m_psFOVPortLeft = *(ovrFovPort**)m_paInput[(int)ORN_Decommanders::DefaultEyeFovLeft];
else m_psFOVPortLeft = nullptr;
else m_psFOVPortLeft = nullptr;
if (m_paInput[(int)ORN_Decommanders::DefaultEyeFovRight])
if (*(ovrFovPort**)m_paInput[(int)ORN_Decommanders::DefaultEyeFovRight])
m_psFOVPortRight = *(ovrFovPort**)m_paInput[(int)ORN_Decommanders::DefaultEyeFovRight];
else m_psFOVPortRight = nullptr;
else m_psFOVPortRight = nullptr;
// get device
LPDIRECT3DDEVICE9 pcDevice = nullptr;
bool bReleaseDevice = false;
if (eD3DInterface == INTERFACE_IDIRECT3DDEVICE9)
{
pcDevice = (LPDIRECT3DDEVICE9)pThis;
}
else if (eD3DInterface == INTERFACE_IDIRECT3DSWAPCHAIN9)
{
LPDIRECT3DSWAPCHAIN9 pSwapChain = (LPDIRECT3DSWAPCHAIN9)pThis;
if (!pSwapChain)
{
OutputDebugString(L"Oculus Renderer Node : No swapchain !");
return nullptr;
}
pSwapChain->GetDevice(&pcDevice);
bReleaseDevice = true;
}
if (!pcDevice)
{
OutputDebugString(L"Oculus Renderer Node : No device !");
return nullptr;
}
// Original code (LibOVR) :
// pShaderCode = ShaderCompile("precompiledVertexShaderSrc",VertexShaderSrc,"vs_2_0");
// pShaderCode = ShaderCompile("precompiledVertexShaderTimewarpSrc",VertexShaderTimewarpSrc,"vs_3_0");
// pShaderCode = ShaderCompile("precompiledPixelShaderSrc",PixelShaderSrc,"ps_3_0");
// pixel shader created ?
if (!m_pcOculusPixelShader)
{
LPD3DXBUFFER pShader;
// compile and create shader
if (SUCCEEDED(D3DXCompileShader(PixelShaderSrc,strlen(PixelShaderSrc),NULL,NULL,"main","ps_3_0",NULL,&pShader,NULL,&m_pcOculusPixelShaderCT)))
{
OutputDebugString(L"Pixel shader compiled!");
pcDevice->CreatePixelShader((DWORD*)pShader->GetBufferPointer(), &m_pcOculusPixelShader);
}
}
// vertex shader created ?
if (!m_pcOculusVertexShader)
{
LPD3DXBUFFER pShader;
// compile and create shader
if (SUCCEEDED(D3DXCompileShader(VertexShaderSrc,strlen(VertexShaderSrc),NULL,NULL,"main","vs_2_0",NULL,&pShader,NULL,&m_pcOculusVertexShaderCT)))
{
OutputDebugString(L"Vertex shader compiled!");
pcDevice->CreateVertexShader((DWORD*)pShader->GetBufferPointer(), &m_pcOculusVertexShader);
}
}
// side by side pixel shader ?
if (!m_pcSideBySidePixelShader)
{
LPD3DXBUFFER pShader;
// compile and create shader
if (SUCCEEDED(D3DXCompileShader(PixelShaderSrcSideBySide,strlen(PixelShaderSrcSideBySide),NULL,NULL,"SBS","ps_2_0",NULL,&pShader,NULL,&m_pcSideBySidePixelShaderCT)))
{
OutputDebugString(L"Pixel shader compiled!");
pcDevice->CreatePixelShader((DWORD*)pShader->GetBufferPointer(), &m_pcSideBySidePixelShader);
}
}
// test textures created ?
if ((!m_pcTextureRightTest) || (!m_pcTextureLeftTest))
{
HMODULE hModule = GetModuleHandle(L"OculusRenderer.dll");
if (!m_pcTextureLeftTest)
{
// create a test texture
if (SUCCEEDED(D3DXCreateTextureFromResource(pcDevice, hModule, MAKEINTRESOURCE(IMG_BACKGROUND01), &m_pcTextureLeftTest)))
OutputDebugString(L"Texture created !");
else m_pcTextureLeftTest = nullptr;
}
if (!m_pcTextureRightTest)
{
// create a test texture
if (SUCCEEDED(D3DXCreateTextureFromResource(pcDevice, hModule, MAKEINTRESOURCE(IMG_BACKGROUND02), &m_pcTextureRightTest)))
OutputDebugString(L"Texture created !");
else m_pcTextureRightTest = nullptr;
}
}
// default vertex buffer ?
if (!m_pcVertexBufferDefault)
{
InitDefaultVertexBuffer(pcDevice);
if (!m_pcVertexBufferDefault) return nullptr;
}
// vertex buffers ? index buffers ? not all present ?
if ((!m_pcDistortionVertexBufferLeft) || (!m_pcDistortionVertexBufferRight) ||
(!m_pcDistortionIndexBufferLeft) || (!m_pcDistortionIndexBufferRight) ||
(!m_pcVertexDecl))
{
if (m_bBuffersConnected)
{
// clear all descriptions for safety
ZeroMemory(&m_sVertexBufferDescLeft, sizeof(D3DVERTEXBUFFER_DESC));
ZeroMemory(&m_sVertexBufferDescRight, sizeof(D3DVERTEXBUFFER_DESC));
ZeroMemory(&m_sIndexBufferDescLeft, sizeof(D3DINDEXBUFFER_DESC));
ZeroMemory(&m_sIndexBufferDescRight, sizeof(D3DINDEXBUFFER_DESC));
m_bBuffersConnected = false;
}
}
else
{
m_bBuffersConnected = true;
// vertex buffer description ? left
if (!m_sVertexBufferDescLeft.Size)
m_pcDistortionVertexBufferLeft->GetDesc(&m_sVertexBufferDescLeft);
// vertex buffer length matches oculus vertex type ?
if ((m_sVertexBufferDescLeft.Size % sizeof(ovrDistortionVertex)) != 0)
{
OutputDebugString(L"OculusRenderer Node : Connected vertex buffer size mismatch !");
return nullptr;
}
// and right
if (!m_sVertexBufferDescRight.Size)
m_pcDistortionVertexBufferRight->GetDesc(&m_sVertexBufferDescRight);
// vertex buffer length matches oculus vertex type ?
if ((m_sVertexBufferDescRight.Size % sizeof(ovrDistortionVertex)) != 0)
{
OutputDebugString(L"OculusRenderer Node : Connected vertex buffer size mismatch !");
return nullptr;
}
// index buffer ?
if ((!m_pcDistortionIndexBufferLeft) || (!m_pcDistortionIndexBufferRight))
return nullptr;
// index buffer description ?
if (!m_sIndexBufferDescLeft.Size)
{
m_pcDistortionIndexBufferLeft->GetDesc(&m_sIndexBufferDescLeft);
// index buffer length matches vertex buffer size ? TODO !!
/*if ()
{
OutputDebugString(L"OculusRenderer Node : Connected index buffer size mismatch !");
return nullptr;
}*/
}
if (!m_sIndexBufferDescRight.Size)
{
m_pcDistortionIndexBufferRight->GetDesc(&m_sIndexBufferDescRight);
// index buffer length matches vertex buffer size ? TODO !!
/*if ()
{
OutputDebugString(L"OculusRenderer Node : Connected index buffer size mismatch !");
return nullptr;
}*/
}
}
// start to render
pcDevice->BeginScene();
// save states
IDirect3DStateBlock9* pStateBlock = nullptr;
pcDevice->CreateStateBlock(D3DSBT_ALL, &pStateBlock);
// set ALL render states to default
SetAllRenderStatesDefault(pcDevice);
// set states
pcDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1);
pcDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
pcDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1);
pcDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_CONSTANT);
pcDevice->SetTextureStageState(0, D3DTSS_CONSTANT, 0xffffffff);
pcDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
pcDevice->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE);
pcDevice->SetRenderState(D3DRS_ZWRITEENABLE, FALSE);
pcDevice->SetSamplerState(0, D3DSAMP_SRGBTEXTURE, 0);
pcDevice->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP);
pcDevice->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP);
pcDevice->SetSamplerState(0, D3DSAMP_ADDRESSW, D3DTADDRESS_CLAMP);
pcDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_ANISOTROPIC);
pcDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_ANISOTROPIC);
pcDevice->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_NONE);
D3DCOLOR clearColor = D3DCOLOR_RGBA(0, 0, 0, 0);
pcDevice->Clear(0, NULL, D3DCLEAR_TARGET, clearColor, 0, 0);
// required fields
D3DSURFACE_DESC sSurfaceDesc;
ovrSizei sTextureSize;
ovrRecti sRenderViewport;
ovrVector2f UVScaleOffset[2];
// LEFT EYE :
// left eye, first set stream source, indices
if (m_bBuffersConnected)
{
// no timewarp here, use standard vertex shader, set pixel shader, set vertex declaration
pcDevice->SetVertexShader( m_pcOculusVertexShader);
pcDevice->SetPixelShader( m_pcOculusPixelShader );
pcDevice->SetVertexDeclaration( m_pcVertexDecl );
// set texture
if (m_pcTextureLeft)
pcDevice->SetTexture( 0, m_pcTextureLeft );
else if (m_pcTextureLeftTest)
pcDevice->SetTexture( 0, m_pcTextureLeftTest );
else pcDevice->SetTexture( 0, 0);
// get texture size
if (m_pcTextureLeft)
m_pcTextureLeft->GetLevelDesc(0, &sSurfaceDesc);
else if (m_pcTextureLeftTest)
m_pcTextureLeftTest->GetLevelDesc(0, &sSurfaceDesc);
else ZeroMemory(&sSurfaceDesc, sizeof(D3DSURFACE_DESC));
sTextureSize.w = (int)sSurfaceDesc.Width;
sTextureSize.h = (int)sSurfaceDesc.Height;
// set render viewport size the same size as the texture size (!)
sRenderViewport.Pos.x = 0;
sRenderViewport.Pos.y = 0;
sRenderViewport.Size.w = sTextureSize.w;
sRenderViewport.Size.h = sTextureSize.h;
// get and set scale and offset
if (m_psFOVPortLeft)
ovrHmd_GetRenderScaleAndOffset(*m_psFOVPortLeft, sTextureSize, sRenderViewport, UVScaleOffset);
else
ovrHmd_GetRenderScaleAndOffset(m_sDefaultFOVPortLeft, sTextureSize, sRenderViewport, UVScaleOffset);
pcDevice->SetVertexShaderConstantF( 0, ( FLOAT* )&UVScaleOffset[0], 1 );
pcDevice->SetVertexShaderConstantF( 2, ( FLOAT* )&UVScaleOffset[1], 1 );
pcDevice->SetStreamSource( 0, m_pcDistortionVertexBufferLeft,0, sizeof(ovrDistortionVertex) );
pcDevice->SetIndices( m_pcDistortionIndexBufferLeft);
// draw
pcDevice->DrawIndexedPrimitive( D3DPT_TRIANGLELIST,0,0, m_sVertexBufferDescLeft.Size / sizeof(ovrDistortionVertex) , 0, m_sIndexBufferDescLeft.Size / 6 );
}
else
{
pcDevice->SetSamplerState(1, D3DSAMP_SRGBTEXTURE, 0);
pcDevice->SetSamplerState(1, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP);
pcDevice->SetSamplerState(1, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP);
pcDevice->SetSamplerState(1, D3DSAMP_ADDRESSW, D3DTADDRESS_CLAMP);
pcDevice->SetSamplerState(1, D3DSAMP_MAGFILTER, D3DTEXF_ANISOTROPIC);
pcDevice->SetSamplerState(1, D3DSAMP_MINFILTER, D3DTEXF_ANISOTROPIC);
pcDevice->SetSamplerState(1, D3DSAMP_MIPFILTER, D3DTEXF_NONE);
// side by side render
pcDevice->SetVertexShader(NULL);
pcDevice->SetPixelShader(m_pcSideBySidePixelShader);
pcDevice->SetVertexDeclaration( NULL );
pcDevice->SetFVF(D3DFVF_TEXVERTEX);
// set textures
if (m_pcTextureLeft)
pcDevice->SetTexture( 0, m_pcTextureLeft );
else if (m_pcTextureLeftTest)
pcDevice->SetTexture( 0, m_pcTextureLeftTest );
else pcDevice->SetTexture( 0, 0);
if (m_pcTextureRight)
pcDevice->SetTexture( 1, m_pcTextureRight );
else if (m_pcTextureRightTest)
pcDevice->SetTexture( 1, m_pcTextureRightTest );
else pcDevice->SetTexture( 1, 0);
// set stream and draw
pcDevice->SetStreamSource( 0, m_pcVertexBufferDefault,0, sizeof(TEXVERTEX) );
pcDevice->DrawPrimitive(D3DPT_TRIANGLEFAN, 0, 2);
}
// RIGHT EYE:
if (m_bBuffersConnected)
{
// set texture
if (m_pcTextureRight)
pcDevice->SetTexture( 0, m_pcTextureRight );
else if (m_pcTextureRightTest)
pcDevice->SetTexture( 0, m_pcTextureRightTest );
else pcDevice->SetTexture( 0, 0);
// get texture size
if (m_pcTextureRight)
m_pcTextureRight->GetLevelDesc(0, &sSurfaceDesc);
else if (m_pcTextureRightTest)
m_pcTextureRightTest->GetLevelDesc(0, &sSurfaceDesc);
else ZeroMemory(&sSurfaceDesc, sizeof(D3DSURFACE_DESC));
sTextureSize.w = (int)sSurfaceDesc.Width;
sTextureSize.h = (int)sSurfaceDesc.Height;
// get and set scale and offset
if (m_psFOVPortRight)
ovrHmd_GetRenderScaleAndOffset(*m_psFOVPortRight, sTextureSize, sRenderViewport, UVScaleOffset);
else
ovrHmd_GetRenderScaleAndOffset(m_sDefaultFOVPortRight, sTextureSize, sRenderViewport, UVScaleOffset);
pcDevice->SetVertexShaderConstantF( 0, ( FLOAT* )&UVScaleOffset[0], 1 );
pcDevice->SetVertexShaderConstantF( 2, ( FLOAT* )&UVScaleOffset[1], 1 );
// set stream source, indices, draw
pcDevice->SetStreamSource( 0, m_pcDistortionVertexBufferRight,0, sizeof(ovrDistortionVertex) );
pcDevice->SetIndices( m_pcDistortionIndexBufferRight);
// draw
pcDevice->DrawIndexedPrimitive( D3DPT_TRIANGLELIST,0,0, m_sVertexBufferDescRight.Size / sizeof(ovrDistortionVertex) , 0, m_sIndexBufferDescRight.Size / 6 );
}
pcDevice->EndScene();
// apply and release state block
if (pStateBlock)
{
pStateBlock->Apply();
pStateBlock->Release();
}
// release device if provided by swapchain
if (bReleaseDevice) pcDevice->Release();
return nullptr;
}
//-------------------------------------------------------------------------------------
int Init()
{
// Initializes LibOVR, and the Rift
ovr_Initialize();
HMD = ovrHmd_Create(0);
if (!HMD)
{
MessageBoxA(NULL,"Oculus Rift not detected.","", MB_OK);
return(1);
}
if (HMD->ProductName[0] == '\0')
MessageBoxA(NULL,"Rift detected, display not enabled.","", MB_OK);
//Setup Window and Graphics - use window frame if relying on Oculus driver
const int backBufferMultisample = 1;
bool UseAppWindowFrame = (HMD->HmdCaps & ovrHmdCap_ExtendDesktop) ? false : true;
HWND window = Util_InitWindowAndGraphics(Recti(HMD->WindowsPos, HMD->Resolution),
FullScreen, backBufferMultisample, UseAppWindowFrame,&pRender);
if (!window) return 1;
ovrHmd_AttachToWindow(HMD, window, NULL, NULL);
//Configure Stereo settings.
Sizei recommenedTex0Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Left, HMD->DefaultEyeFov[0], 1.0f);
Sizei recommenedTex1Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Right, HMD->DefaultEyeFov[1], 1.0f);
Sizei RenderTargetSize;
RenderTargetSize.w = recommenedTex0Size.w + recommenedTex1Size.w;
RenderTargetSize.h = max ( recommenedTex0Size.h, recommenedTex1Size.h );
const int eyeRenderMultisample = 1;
pRendertargetTexture = pRender->CreateTexture(Texture_RGBA | Texture_RenderTarget |
eyeRenderMultisample,
RenderTargetSize.w, RenderTargetSize.h, NULL);
// The actual RT size may be different due to HW limits.
RenderTargetSize.w = pRendertargetTexture->GetWidth();
RenderTargetSize.h = pRendertargetTexture->GetHeight();
// Initialize eye rendering information.
// The viewport sizes are re-computed in case RenderTargetSize changed due to HW limitations.
ovrFovPort eyeFov[2] = { HMD->DefaultEyeFov[0], HMD->DefaultEyeFov[1] } ;
EyeRenderViewport[0].Pos = Vector2i(0,0);
EyeRenderViewport[0].Size = Sizei(RenderTargetSize.w / 2, RenderTargetSize.h);
EyeRenderViewport[1].Pos = Vector2i((RenderTargetSize.w + 1) / 2, 0);
EyeRenderViewport[1].Size = EyeRenderViewport[0].Size;
#if SDK_RENDER
// Query D3D texture data.
EyeTexture[0].D3D11.Header.API = ovrRenderAPI_D3D11;
EyeTexture[0].D3D11.Header.TextureSize = RenderTargetSize;
EyeTexture[0].D3D11.Header.RenderViewport = EyeRenderViewport[0];
EyeTexture[0].D3D11.pTexture = pRendertargetTexture->Tex.GetPtr();
EyeTexture[0].D3D11.pSRView = pRendertargetTexture->TexSv.GetPtr();
// Right eye uses the same texture, but different rendering viewport.
EyeTexture[1] = EyeTexture[0];
EyeTexture[1].D3D11.Header.RenderViewport = EyeRenderViewport[1];
// Configure d3d11.
ovrD3D11Config d3d11cfg;
d3d11cfg.D3D11.Header.API = ovrRenderAPI_D3D11;
d3d11cfg.D3D11.Header.RTSize = Sizei(HMD->Resolution.w, HMD->Resolution.h);
d3d11cfg.D3D11.Header.Multisample = backBufferMultisample;
d3d11cfg.D3D11.pDevice = pRender->Device;
d3d11cfg.D3D11.pDeviceContext = pRender->Context;
d3d11cfg.D3D11.pBackBufferRT = pRender->BackBufferRT;
d3d11cfg.D3D11.pSwapChain = pRender->SwapChain;
if (!ovrHmd_ConfigureRendering(HMD, &d3d11cfg.Config,
ovrDistortionCap_Chromatic | ovrDistortionCap_Vignette |
ovrDistortionCap_TimeWarp | ovrDistortionCap_Overdrive,
eyeFov, EyeRenderDesc)) return(1);
#else
//Shader vertex format
D3D11_INPUT_ELEMENT_DESC DistortionMeshVertexDesc[] = {
{"Position", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0},
{"Position", 1, DXGI_FORMAT_R32_FLOAT, 0, 8, D3D11_INPUT_PER_VERTEX_DATA, 0},
{"Position", 2, DXGI_FORMAT_R32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0},
{"TexCoord", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 16, D3D11_INPUT_PER_VERTEX_DATA, 0},
{"TexCoord", 1, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D11_INPUT_PER_VERTEX_DATA, 0},
{"TexCoord", 2, DXGI_FORMAT_R32G32_FLOAT, 0, 32, D3D11_INPUT_PER_VERTEX_DATA, 0}};
//Distortion vertex shader
const char* vertexShader =
"float2 EyeToSourceUVScale, EyeToSourceUVOffset; \n"
"float4x4 EyeRotationStart, EyeRotationEnd; \n"
"float2 TimewarpTexCoord(float2 TexCoord, float4x4 rotMat) \n"
"{ \n"
// Vertex inputs are in TanEyeAngle space for the R,G,B channels (i.e. after chromatic
// aberration and distortion). These are now "real world" vectors in direction (x,y,1)
// relative to the eye of the HMD. Apply the 3x3 timewarp rotation to these vectors.
" float3 transformed = float3( mul ( rotMat, float4(TexCoord.xy, 1, 1) ).xyz); \n"
// Project them back onto the Z=1 plane of the rendered images.
" float2 flattened = (transformed.xy / transformed.z); \n"
// Scale them into ([0,0.5],[0,1]) or ([0.5,0],[0,1]) UV lookup space (depending on eye)
" return(EyeToSourceUVScale * flattened + EyeToSourceUVOffset); \n"
"} \n"
"void main(in float2 Position : POSITION, in float timewarpLerpFactor : POSITION1, \n"
" in float Vignette : POSITION2, in float2 TexCoord0 : TEXCOORD0, \n"
" in float2 TexCoord1 : TEXCOORD1, in float2 TexCoord2 : TEXCOORD2, \n"
" out float4 oPosition : SV_Position, \n"
" out float2 oTexCoord0 : TEXCOORD0, out float2 oTexCoord1 : TEXCOORD1, \n"
" out float2 oTexCoord2 : TEXCOORD2, out float oVignette : TEXCOORD3) \n"
"{ \n"
" float4x4 lerpedEyeRot = lerp(EyeRotationStart, EyeRotationEnd, timewarpLerpFactor);\n"
" oTexCoord0 = TimewarpTexCoord(TexCoord0,lerpedEyeRot); \n"
" oTexCoord1 = TimewarpTexCoord(TexCoord1,lerpedEyeRot); \n"
" oTexCoord2 = TimewarpTexCoord(TexCoord2,lerpedEyeRot); \n"
" oPosition = float4(Position.xy, 0.5, 1.0); oVignette = Vignette; \n"
"}";
//Distortion pixel shader
const char* pixelShader =
"Texture2D Texture : register(t0); \n"
"SamplerState Linear : register(s0); \n"
"float4 main(in float4 oPosition : SV_Position, in float2 oTexCoord0 : TEXCOORD0, \n"
" in float2 oTexCoord1 : TEXCOORD1, in float2 oTexCoord2 : TEXCOORD2, \n"
" in float oVignette : TEXCOORD3) : SV_Target \n"
"{ \n"
// 3 samples for fixing chromatic aberrations
" float R = Texture.Sample(Linear, oTexCoord0.xy).r; \n"
" float G = Texture.Sample(Linear, oTexCoord1.xy).g; \n"
" float B = Texture.Sample(Linear, oTexCoord2.xy).b; \n"
" return (oVignette*float4(R,G,B,1)); \n"
"}";
pRender->InitShaders(vertexShader, pixelShader, &Shaders, &VertexIL,DistortionMeshVertexDesc,6);
for ( int eyeNum = 0; eyeNum < 2; eyeNum++ )
{
// Allocate mesh vertices, registering with renderer using the OVR vertex format.
ovrDistortionMesh meshData;
ovrHmd_CreateDistortionMesh(HMD, (ovrEyeType) eyeNum, eyeFov[eyeNum],
ovrDistortionCap_Chromatic | ovrDistortionCap_TimeWarp, &meshData);
MeshVBs[eyeNum] = *pRender->CreateBuffer();
MeshVBs[eyeNum]->Data(Buffer_Vertex,meshData.pVertexData,sizeof(ovrDistortionVertex)*meshData.VertexCount);
MeshIBs[eyeNum] = *pRender->CreateBuffer();
MeshIBs[eyeNum]->Data(Buffer_Index,meshData.pIndexData,sizeof(unsigned short) * meshData.IndexCount);
ovrHmd_DestroyDistortionMesh( &meshData );
//Create eye render description for use later
EyeRenderDesc[eyeNum] = ovrHmd_GetRenderDesc(HMD, (ovrEyeType) eyeNum, eyeFov[eyeNum]);
//Do scale and offset
ovrHmd_GetRenderScaleAndOffset(eyeFov[eyeNum],RenderTargetSize, EyeRenderViewport[eyeNum], UVScaleOffset[eyeNum]);
}
#endif
ovrHmd_SetEnabledCaps(HMD, ovrHmdCap_LowPersistence | ovrHmdCap_DynamicPrediction);
// Start the sensor which informs of the Rift's pose and motion
ovrHmd_ConfigureTracking(HMD, ovrTrackingCap_Orientation |
ovrTrackingCap_MagYawCorrection |
ovrTrackingCap_Position, 0);
// This creates lights and models.
pRoomScene = new Scene;
sbuilder.PopulateRoomScene(pRoomScene, pRender);
return (0);
}
void OVR_FrameStart(int32_t changeBackBuffers)
{
if (vr_ovr_maxfov->modified)
{
int newValue = vr_ovr_maxfov->value ? 1 : 0;
if (newValue != (int)vr_ovr_maxfov->value)
Cvar_SetInteger("vr_ovr_maxfov",newValue);
changeBackBuffers = 1;
vr_ovr_maxfov->modified = (qboolean) false;
}
if (vr_ovr_supersample->modified)
{
if (vr_ovr_supersample->value < 1.0)
Cvar_Set("vr_ovr_supersample", "1.0");
else if (vr_ovr_supersample->value > 2.0)
Cvar_Set("vr_ovr_supersample", "2.0");
changeBackBuffers = 1;
vr_ovr_supersample->modified = false;
}
if (useChroma != (qboolean) !!vr_chromatic->value)
{
useChroma = (qboolean) !!vr_chromatic->value;
}
if (vr_ovr_lumoverdrive->modified)
{
changeBackBuffers = 1;
currentFrame = 0;
vr_ovr_lumoverdrive->modified = false;
}
if (changeBackBuffers)
{
int i;
float width, height;
float ovrScale;
OVR_CalculateState(¤tState);
width = glConfig.render_width / (float) hmd->Resolution.w;
height = glConfig.render_height / (float) hmd->Resolution.h;
ovrScale = (width + height) / 2.0;
ovrScale *= R_AntialiasGetScale() * vr_ovr_supersample->value;
if (vr_ovr_debug->value)
Com_Printf("VR_OVR: Set render target scale to %.2f\n",ovrScale);
for (i = 0; i < 2; i++)
{
ovrRecti viewport = {{0,0}, {0,0}};
renderInfo[i].renderTarget = ovrHmd_GetFovTextureSize(hmd, (ovrEyeType) i, renderInfo[i].eyeFov, ovrScale);
viewport.Size.w = renderInfo[i].renderTarget.w;
viewport.Size.h = renderInfo[i].renderTarget.h;
ovrHmd_GetRenderScaleAndOffset(renderInfo[i].eyeFov, renderInfo[i].renderTarget, viewport, (ovrVector2f*) renderInfo[i].UVScaleOffset);
if (renderInfo[i].renderTarget.w != renderInfo[i].eyeFBO.width || renderInfo[i].renderTarget.h != renderInfo[i].eyeFBO.height)
{
if (vr_ovr_debug->value)
Com_Printf("VR_OVR: Set buffer %i to size %i x %i\n",i,renderInfo[i].renderTarget.w, renderInfo[i].renderTarget.h);
R_ResizeFBO(renderInfo[i].renderTarget.w, renderInfo[i].renderTarget.h, 1, GL_RGBA8, &renderInfo[i].eyeFBO);
R_ClearFBO(&renderInfo[i].eyeFBO);
}
}
}
}
COculusVR::COculusVR(bool latency)
{
m_isReady = true;
// Initializes LibOVR, and the Rift
ovr_Initialize();
Hmd = ovrHmd_Create(0);
if (!Hmd)
{
MessageBoxA(NULL, "Oculus Rift not detected.", "", MB_OK);
return;
}
if (Hmd->ProductName[0] == '\0')
MessageBoxA(NULL, "Rift detected, display not enabled.", "", MB_OK);
if (Hmd->HmdCaps & ovrHmdCap_ExtendDesktop)
{
WindowSize = Hmd->Resolution;
}
else
{
// In Direct App-rendered mode, we can use smaller window size,
// as it can have its own contents and isn't tied to the buffer.
WindowSize = Sizei(1100, 618);//Sizei(960, 540); avoid rotated output bug.
}
ovrHmd_AttachToWindow(Hmd, wzGetWindowHandle(), NULL, NULL);
// Configure Stereo settings.
Sizei recommenedTex0Size = ovrHmd_GetFovTextureSize(Hmd, ovrEye_Left, Hmd->DefaultEyeFov[0], 1.0f);
Sizei recommenedTex1Size = ovrHmd_GetFovTextureSize(Hmd, ovrEye_Right, Hmd->DefaultEyeFov[1], 1.0f);
EyeRenderTargetSize.w = recommenedTex0Size.w + recommenedTex1Size.w;
EyeRenderTargetSize.h = Alg::Max( recommenedTex0Size.h, recommenedTex1Size.h );
//Create Framebuffer
wzCreateRenderTarget(&m_screenRender);
wzCreateRenderBufferDepth(&m_screenBuffer,EyeRenderTargetSize.w,EyeRenderTargetSize.h);
wzCreateTexture(&m_screenTex,EyeRenderTargetSize.w,EyeRenderTargetSize.h,WZ_FORMATTYPE_RGB,NULL);
//attach
wzSetRenderBuffer(&m_screenRender,&m_screenBuffer);
wzSetRenderTexture(&m_screenRender,&m_screenTex);
// Initialize eye rendering information.
// The viewport sizes are re-computed in case RenderTargetSize changed due to HW limitations.
ovrFovPort eyeFov[2] = { Hmd->DefaultEyeFov[0], Hmd->DefaultEyeFov[1] } ;
EyeRenderViewport[0].Pos = Vector2i(0,0);
EyeRenderViewport[0].Size = Sizei(EyeRenderTargetSize.w / 2, EyeRenderTargetSize.h);
EyeRenderViewport[1].Pos = Vector2i((EyeRenderTargetSize.w + 1) / 2, 0);
EyeRenderViewport[1].Size = EyeRenderViewport[0].Size;
//Shader vertex format
wzVertexElements ve_var[] = {
{WZVETYPE_FLOAT2,"position"},
{WZVETYPE_FLOAT1,"timewarpLerpFactor"},
{WZVETYPE_FLOAT1,"vignette"},
{WZVETYPE_FLOAT2,"texCoord0"},
{WZVETYPE_FLOAT2,"texCoord1"},
{WZVETYPE_FLOAT2,"texCoord2"},
WZVE_TMT()
};
//carete mesh
for ( int eyeNum = 0; eyeNum < 2; eyeNum++ )
{
// Allocate mesh vertices, registering with renderer using the OVR vertex format.
ovrDistortionMesh meshData;
ovrHmd_CreateDistortionMesh(Hmd, (ovrEyeType) eyeNum, eyeFov[eyeNum],
ovrDistortionCap_Chromatic | ovrDistortionCap_TimeWarp, &meshData);
//Create datas
wzVector2* vertex_pos = new wzVector2[meshData.VertexCount];
float* vertex_posTimewarp = new float[meshData.VertexCount];
float* vertex_posVignette = new float[meshData.VertexCount];
wzVector2* vertex_textanR = new wzVector2[meshData.VertexCount];
wzVector2* vertex_textanG = new wzVector2[meshData.VertexCount];
wzVector2* vertex_textanB = new wzVector2[meshData.VertexCount];
//data copy
for(unsigned int i = 0; i < meshData.VertexCount; i++) {
vertex_pos[i].x = meshData.pVertexData[i].ScreenPosNDC.x;
vertex_pos[i].y = meshData.pVertexData[i].ScreenPosNDC.y;
vertex_posTimewarp[i] = meshData.pVertexData[i].TimeWarpFactor;
vertex_posVignette[i] = meshData.pVertexData[i].VignetteFactor;
vertex_textanR[i].x = meshData.pVertexData[i].TanEyeAnglesR.x;
vertex_textanR[i].y = meshData.pVertexData[i].TanEyeAnglesR.y;
vertex_textanG[i].x = meshData.pVertexData[i].TanEyeAnglesG.x;
vertex_textanG[i].y = meshData.pVertexData[i].TanEyeAnglesG.y;
vertex_textanB[i].x = meshData.pVertexData[i].TanEyeAnglesB.x;
vertex_textanB[i].y = meshData.pVertexData[i].TanEyeAnglesB.y;
}
void* vertex_pointer[] = {vertex_pos,vertex_posTimewarp,vertex_posVignette,vertex_textanR,vertex_textanG,vertex_textanB};
if(wzCreateMesh(&MeshBuffer[eyeNum], vertex_pointer, ve_var,
meshData.pIndexData, meshData.VertexCount, meshData.IndexCount)) {
MessageBoxA(NULL, "Lens Distort Mesh Error.", "", MB_OK);
delete[] vertex_pos;
delete[] vertex_posTimewarp;
delete[] vertex_posVignette;
delete[] vertex_textanR;
delete[] vertex_textanG;
delete[] vertex_textanB;
return; //error
}
wzChangeDrawMode(&MeshBuffer[eyeNum],WZ_MESH_DF_TRIANGLELIST);
delete[] vertex_pos;
delete[] vertex_posTimewarp;
delete[] vertex_posVignette;
delete[] vertex_textanR;
delete[] vertex_textanG;
delete[] vertex_textanB;
ovrHmd_DestroyDistortionMesh(&meshData);
//Create eye render description for use later
EyeRenderDesc[eyeNum] = ovrHmd_GetRenderDesc(Hmd, (ovrEyeType) eyeNum, eyeFov[eyeNum]);
//Do scale and offset
ovrHmd_GetRenderScaleAndOffset(eyeFov[eyeNum],EyeRenderTargetSize, EyeRenderViewport[eyeNum], UVScaleOffset[eyeNum]);
}
//Create shader
if(wzCreateShader(&LensShader, ols_vertexshader,ols_flagshader, ve_var)) {
MessageBoxA(NULL, "Lens Shader Compile Error.", "", MB_OK);
return;
}
if(latency) ovrHmd_SetEnabledCaps(Hmd, ovrHmdCap_DynamicPrediction); //ovrHmdCap_LowPersistence
// Start the sensor which informs of the Rift's pose and motion
ovrHmd_ConfigureTracking(Hmd, ovrTrackingCap_Orientation |
ovrTrackingCap_MagYawCorrection, 0); //not use : ovrTrackingCap_Position
m_isReady = false;
}
void DistortionMeshInit(unsigned distortionCaps, ovrHmd HMD,
ovrEyeRenderDesc eyeRenderDesc[2],
ovrSizei textureSize, ovrRecti viewports[2],
RenderDevice* pRender)
{
//Generate distortion mesh for each eye
for ( int eyeNum = 0; eyeNum < 2; eyeNum++ )
{
// Allocate & generate distortion mesh vertices.
ovrDistortionMesh meshData;
ovrHmd_CreateDistortionMesh(HMD,
eyeRenderDesc[eyeNum].Eye, eyeRenderDesc[eyeNum].Fov,
distortionCaps, &meshData);
ovrHmd_GetRenderScaleAndOffset(eyeRenderDesc[eyeNum].Fov,
textureSize, viewports[eyeNum],
(ovrVector2f*) DistortionData.UVScaleOffset[eyeNum]);
// Now parse the vertex data and create a render ready vertex buffer from it
DistortionVertex * pVBVerts = (DistortionVertex*)OVR_ALLOC(
sizeof(DistortionVertex) * meshData.VertexCount );
DistortionVertex * v = pVBVerts;
ovrDistortionVertex * ov = meshData.pVertexData;
for ( unsigned vertNum = 0; vertNum < meshData.VertexCount; vertNum++ )
{
v->Pos.x = ov->Pos.x;
v->Pos.y = ov->Pos.y;
v->TexR = (*(Vector2f*)&ov->TexR);
v->TexG = (*(Vector2f*)&ov->TexG);
v->TexB = (*(Vector2f*)&ov->TexB);
v->Col.R = v->Col.G = v->Col.B = (OVR::UByte)( ov->VignetteFactor * 255.99f );
v->Col.A = (OVR::UByte)( ov->TimeWarpFactor * 255.99f );
v++; ov++;
}
//Register this mesh with the renderer
DistortionData.MeshVBs[eyeNum] = *pRender->CreateBuffer();
DistortionData.MeshVBs[eyeNum]->Data ( Buffer_Vertex, pVBVerts,
sizeof(DistortionVertex) * meshData.VertexCount );
DistortionData.MeshIBs[eyeNum] = *pRender->CreateBuffer();
DistortionData.MeshIBs[eyeNum]->Data ( Buffer_Index, meshData.pIndexData,
sizeof(unsigned short) * meshData.IndexCount );
OVR_FREE ( pVBVerts );
ovrHmd_DestroyDistortionMesh( &meshData );
}
// Pixel shader for the mesh
//-------------------------------------------------------------------------------------------
const char* pixelShader =
"Texture2D Texture : register(t0); \n"
"SamplerState Linear : register(s0); \n"
"float4 main(in float4 oPosition : SV_Position, in float4 oColor : COLOR, \n"
" in float2 oTexCoord0 : TEXCOORD0, in float2 oTexCoord1 : TEXCOORD1, \n"
" in float2 oTexCoord2 : TEXCOORD2) : SV_Target \n"
"{ \n"
// 3 samples for fixing chromatic aberrations
" float ResultR = Texture.Sample(Linear, oTexCoord0.xy).r; \n"
" float ResultG = Texture.Sample(Linear, oTexCoord1.xy).g; \n"
" float ResultB = Texture.Sample(Linear, oTexCoord2.xy).b; \n"
" return float4(ResultR * oColor.r, ResultG * oColor.g, ResultB * oColor.b, 1.0); \n"
"}";
// Choose the vertex shader, according to if you have timewarp enabled
if (distortionCaps & ovrDistortionCap_TimeWarp)
{ // TIMEWARP
//--------------------------------------------------------------------------------------------
const char* vertexShader =
"float2 EyeToSourceUVScale; \n"
"float2 EyeToSourceUVOffset; \n"
"float4x4 EyeRotationStart; \n"
"float4x4 EyeRotationEnd; \n"
"float2 TimewarpTexCoord(float2 TexCoord, float4x4 rotMat) \n"
"{ \n"
// Vertex inputs are in TanEyeAngle space for the R,G,B channels (i.e. after chromatic
// aberration and distortion). These are now "real world" vectors in direction (x,y,1)
// relative to the eye of the HMD. Apply the 3x3 timewarp rotation to these vectors.
" float3 transformed = float3( mul ( rotMat, float4(TexCoord.xy, 1, 1) ).xyz); \n"
// Project them back onto the Z=1 plane of the rendered images.
" float2 flattened = (transformed.xy / transformed.z); \n"
// Scale them into ([0,0.5],[0,1]) or ([0.5,0],[0,1]) UV lookup space (depending on eye)
" return(EyeToSourceUVScale * flattened + EyeToSourceUVOffset); \n"
"} \n"
"void main(in float2 Position : POSITION, in float4 Color : COLOR0, \n"
" in float2 TexCoord0 : TEXCOORD0, in float2 TexCoord1 : TEXCOORD1, \n"
" in float2 TexCoord2 : TEXCOORD2, \n"
" out float4 oPosition : SV_Position, out float4 oColor : COLOR, \n"
" out float2 oTexCoord0 : TEXCOORD0, out float2 oTexCoord1 : TEXCOORD1, \n"
" out float2 oTexCoord2 : TEXCOORD2) \n"
"{ \n"
" float timewarpLerpFactor = Color.a; \n"
" float4x4 lerpedEyeRot = lerp(EyeRotationStart, EyeRotationEnd, timewarpLerpFactor);\n"
" oTexCoord0 = TimewarpTexCoord(TexCoord0,lerpedEyeRot); \n"
" oTexCoord1 = TimewarpTexCoord(TexCoord1,lerpedEyeRot); \n"
" oTexCoord2 = TimewarpTexCoord(TexCoord2,lerpedEyeRot); \n"
" oPosition = float4(Position.xy, 0.5, 1.0); \n"
" oColor = Color.r; /*For vignette fade*/ \n"
"}";
pRender->InitShaders(vertexShader, pixelShader, &DistortionData.Shaders,
&DistortionData.VertexIL,DistortionMeshVertexDesc,5);
}
else
{
//-------------------------------------------------------------------------------------------
const char* vertexShader =
"float2 EyeToSourceUVScale; \n"
"float2 EyeToSourceUVOffset; \n"
"void main(in float2 Position : POSITION, in float4 Color : COLOR0, \n"
" in float2 TexCoord0 : TEXCOORD0, in float2 TexCoord1 : TEXCOORD1, \n"
" in float2 TexCoord2 : TEXCOORD2, \n"
" out float4 oPosition : SV_Position, out float4 oColor : COLOR, \n"
" out float2 oTexCoord0 : TEXCOORD0, out float2 oTexCoord1 : TEXCOORD1, \n"
" out float2 oTexCoord2 : TEXCOORD2) \n"
"{ \n"
// Scale them into ([0,0.5],[0,1]) or ([0.5,0],[0,1]) UV lookup space (depending on eye)
" oTexCoord0 = EyeToSourceUVScale * TexCoord0 + EyeToSourceUVOffset; \n"
" oTexCoord1 = EyeToSourceUVScale * TexCoord1 + EyeToSourceUVOffset; \n"
" oTexCoord2 = EyeToSourceUVScale * TexCoord2 + EyeToSourceUVOffset; \n"
" oPosition = float4(Position.xy, 0.5, 1.0); \n"
" oColor = Color.r; /*For vignette fade*/ \n"
"}";
pRender->InitShaders(vertexShader, pixelShader, &DistortionData.Shaders,
&DistortionData.VertexIL,DistortionMeshVertexDesc,5);
}
}
int
setup_rift(struct weston_compositor *compositor)
{
struct oculus_rift *rift = compositor->rift;
rift->enabled = 1;
rift->screen_z = -5.0;
rift->screen_scale = 1.0;
weston_compositor_add_key_binding(compositor, KEY_5, MODIFIER_SUPER,
toggle_sbs, compositor);
weston_compositor_add_key_binding(compositor, KEY_6, MODIFIER_SUPER,
toggle_rotate, compositor);
weston_compositor_add_key_binding(compositor, KEY_7, MODIFIER_SUPER,
move_in, compositor);
weston_compositor_add_key_binding(compositor, KEY_8, MODIFIER_SUPER,
move_out, compositor);
weston_compositor_add_key_binding(compositor, KEY_9, MODIFIER_SUPER,
scale_up, compositor);
weston_compositor_add_key_binding(compositor, KEY_0, MODIFIER_SUPER,
scale_down, compositor);
/*// use this at some point in the future to detect and grab the rift display
struct weston_output *output;
wl_list_for_each(output, &compositor->output_list, link)
{
weston_log("Output (%i): %s\n\t%ix%i\n", output->id, output->name,
output->width, output->height);
}*/
rift->distortion_shader = calloc(1, sizeof *(rift->distortion_shader));
struct distortion_shader_ *d = rift->distortion_shader;
d->program = CreateProgram(distortion_vertex_shader, distortion_fragment_shader);
d->EyeToSourceUVScale = glGetUniformLocation(d->program, "EyeToSourceUVScale");
d->EyeToSourceUVOffset = glGetUniformLocation(d->program, "EyeToSourceUVOffset");
d->RightEye = glGetUniformLocation(d->program, "RightEye");
d->angle = glGetUniformLocation(d->program, "angle");
d->Position = glGetAttribLocation(d->program, "Position");
d->TexCoord0 = glGetAttribLocation(d->program, "TexCoord0");
d->TexCoordR = glGetAttribLocation(d->program, "TexCoordR");
d->TexCoordG = glGetAttribLocation(d->program, "TexCoordG");
d->TexCoordB = glGetAttribLocation(d->program, "TexCoordB");
d->eyeTexture = glGetAttribLocation(d->program, "Texture0");
rift->eye_shader = calloc(1, sizeof *(rift->eye_shader));
struct eye_shader_ *e = rift->eye_shader;
e->program = CreateProgram(eye_vertex_shader, eye_fragment_shader);
e->Position = glGetAttribLocation(d->program, "Position");
e->TexCoord0 = glGetAttribLocation(d->program, "TexCoord0");
e->Projection = glGetUniformLocation(e->program, "Projection");
e->ModelView = glGetUniformLocation(e->program, "ModelView");
e->virtualScreenTexture = glGetAttribLocation(d->program, "Texture0");
rift->scene = calloc(1, sizeof *(rift->scene));
glGenBuffers(1, &rift->scene->vertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, rift->scene->vertexBuffer);
static const GLfloat rectangle[] =
{-1.0f, -1.0f, -0.5f,
1.0f, -1.0f, -0.5f,
-1.0f, 1.0f, -0.5f,
1.0f, -1.0f, -0.5f,
1.0f, 1.0f, -0.5f,
-1.0f, 1.0f, -0.5f};
glBufferData(GL_ARRAY_BUFFER, sizeof(rectangle), rectangle, GL_STATIC_DRAW);
glGenBuffers(2, &rift->scene->SBSuvsBuffer[0]);
glGenBuffers(1, &rift->scene->uvsBuffer);
static const GLfloat uvs[3][12] =
{{ 0.0, 0.0,
0.5, 0.0,
0.0, 1.0,
0.5, 0.0,
0.5, 1.0,
0.0, 1.0},
{ 0.5, 0.0,
1.0, 0.0,
0.5, 1.0,
1.0, 0.0,
1.0, 1.0,
0.5, 1.0},
{ 0.0, 0.0,
1.0, 0.0,
0.0, 1.0,
1.0, 0.0,
1.0, 1.0,
0.0, 1.0}};
glBindBuffer(GL_ARRAY_BUFFER, rift->scene->SBSuvsBuffer[0]);
glBufferData(GL_ARRAY_BUFFER, sizeof(uvs[0]), uvs[0], GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, rift->scene->SBSuvsBuffer[1]);
glBufferData(GL_ARRAY_BUFFER, sizeof(uvs[1]), uvs[1], GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, rift->scene->uvsBuffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(uvs[2]), uvs[2], GL_STATIC_DRAW);
rift->width = 1920;
rift->height = 1080;
glGenTextures(1, &rift->fbTexture);
glBindTexture(GL_TEXTURE_2D, rift->fbTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, rift->width, rift->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glGenFramebuffers(1, &rift->redirectedFramebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, rift->redirectedFramebuffer);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rift->fbTexture, 0); show_error();
if(glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
{
switch(glCheckFramebufferStatus(GL_FRAMEBUFFER))
{
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: weston_log("incomplete attachment\n"); break;
case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: weston_log("incomplete dimensions\n"); break;
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: weston_log("incomplete missing attachment\n"); break;
case GL_FRAMEBUFFER_UNSUPPORTED: weston_log("unsupported\n"); break;
}
weston_log("framebuffer not working\n");
show_error();
exit(1);
}
glClear(GL_COLOR_BUFFER_BIT);
/*EGLint pbufferAttributes[] = {
EGL_WIDTH, rift->width,
EGL_HEIGHT, rift->height,
EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB,
EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
EGL_NONE
};
rift->pbuffer = eglCreatePbufferSurface(
rift->egl_display, rift->egl_config,
pbufferAttributes);
glGenTextures(1, &(rift->texture));
glBindTexture(GL_TEXTURE_2D, rift->texture);
//glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, rift->width, rift->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
eglMakeCurrent(rift->egl_display, rift->pbuffer, rift->pbuffer, rift->egl_context);
eglBindTexImage(rift->egl_display, rift->pbuffer, EGL_BACK_BUFFER);
eglMakeCurrent(rift->egl_display, rift->orig_surface, rift->orig_surface, rift->egl_context);*/
ovr_Initialize(0);
rift->hmd = ovrHmd_Create(0);
if(rift->hmd == NULL)
{
rift->hmd = ovrHmd_CreateDebug(ovrHmd_DK2);
}
ovrHmd_ConfigureTracking(rift->hmd, ovrTrackingCap_Orientation |
ovrTrackingCap_Position | ovrTrackingCap_MagYawCorrection, 0);
ovrHmd_ResetFrameTiming(rift->hmd, 0);
int eye;
for(eye = 0; eye < 2; eye++)
{
ovrFovPort fov = rift->hmd->DefaultEyeFov[eye];
ovrEyeRenderDesc renderDesc = ovrHmd_GetRenderDesc(rift->hmd, eye, fov);
struct EyeArg *eyeArg = &rift->eyeArgs[eye];
eyeArg->projection = ovrMatrix4f_Projection(fov, 0.1, 100000, true);
/*int j, k;
for(k=0; k<4; k++)
{
for(j=0; j<4; j++)
{
printf("%f\t", eyeArg->projection.M[k][j]);
}
printf("\n");
}*/
rift->hmdToEyeOffsets[eye] = renderDesc.HmdToEyeViewOffset;
ovrRecti texRect;
texRect.Size = ovrHmd_GetFovTextureSize(rift->hmd, eye, rift->hmd->DefaultEyeFov[eye],
1.0f);
texRect.Pos.x = texRect.Pos.y = 0;
eyeArg->textureWidth = texRect.Size.w;
eyeArg->textureHeight = texRect.Size.h;
glGenTextures(1, &eyeArg->texture);
glBindTexture(GL_TEXTURE_2D, eyeArg->texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, eyeArg->textureWidth, eyeArg->textureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glGenFramebuffers(1, &eyeArg->framebuffer); show_error();
glBindFramebuffer(GL_FRAMEBUFFER, eyeArg->framebuffer); show_error();
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, eyeArg->texture, 0); show_error();
if(glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
{
switch(glCheckFramebufferStatus(GL_FRAMEBUFFER))
{
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: weston_log("incomplete attachment\n"); break;
case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: weston_log("incomplete dimensions\n"); break;
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: weston_log("incomplete missing attachment\n"); break;
case GL_FRAMEBUFFER_UNSUPPORTED: weston_log("unsupported\n"); break;
}
weston_log("framebuffer not working\n");
show_error();
exit(1);
}
if(eye)
{
glClearColor(1.0, 0.0, 0.0, 1.0); show_error();
}
else
{
glClearColor(0.0, 1.0, 0.0, 1.0); show_error();
}
glClear(GL_COLOR_BUFFER_BIT); show_error();
/*EGLint eyePbufferAttributes[] = {
EGL_WIDTH, texRect.Size.w,
EGL_HEIGHT, texRect.Size.h,
EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB,
EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
EGL_NONE
};
eyeArg.surface = eglCreatePbufferSurface(
rift->egl_display, rift->egl_config,
eyePbufferAttributes);*/
ovrVector2f scaleAndOffset[2];
ovrHmd_GetRenderScaleAndOffset(fov, texRect.Size, texRect, scaleAndOffset);
eyeArg->scale = scaleAndOffset[0];
eyeArg->offset = scaleAndOffset[1];
ovrHmd_CreateDistortionMesh(rift->hmd, eye, fov, 0, &eyeArg->mesh);
glGenBuffers(1, &eyeArg->indexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, eyeArg->indexBuffer);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, eyeArg->mesh.IndexCount * sizeof(unsigned short), eyeArg->mesh.pIndexData, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
float vertices_buffer[eyeArg->mesh.VertexCount*2];
float uvs_buffer[3][eyeArg->mesh.VertexCount*2];
uint i;
for(i=0; i<eyeArg->mesh.VertexCount; i++)
{
ovrDistortionVertex vertex = eyeArg->mesh.pVertexData[i];
vertices_buffer[i*2] = vertex.ScreenPosNDC.x;
vertices_buffer[(i*2)+1] = vertex.ScreenPosNDC.y;
uvs_buffer[0][i*2] = vertex.TanEyeAnglesR.x;
uvs_buffer[0][(i*2)+1] = vertex.TanEyeAnglesR.y;
uvs_buffer[1][i*2] = vertex.TanEyeAnglesG.x;
uvs_buffer[1][(i*2)+1] = vertex.TanEyeAnglesG.y;
uvs_buffer[2][i*2] = vertex.TanEyeAnglesB.x;
uvs_buffer[2][(i*2)+1] = vertex.TanEyeAnglesB.y;
}
glGenBuffers(1, &eyeArg->vertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, eyeArg->vertexBuffer);
glBufferData(GL_ARRAY_BUFFER, eyeArg->mesh.VertexCount * sizeof(GL_FLOAT) * 2, vertices_buffer, GL_STATIC_DRAW);
glGenBuffers(3, &eyeArg->uvsBuffer[0]);
for(i=0; i<3; i++)
{
glBindBuffer(GL_ARRAY_BUFFER, eyeArg->uvsBuffer[i]);
glBufferData(GL_ARRAY_BUFFER, eyeArg->mesh.VertexCount * sizeof(GL_FLOAT) * 2, uvs_buffer[i], GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
}
return 0;
}
osg::Geode* OculusDevice::distortionMesh(Eye eye, osg::Program* program, int x, int y, int w, int h, bool splitViewport) {
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
// Allocate & generate distortion mesh vertices.
ovrDistortionMesh meshData;
ovrHmd_CreateDistortionMesh(m_hmdDevice, m_eyeRenderDesc[eye].Eye, m_eyeRenderDesc[eye].Fov, ovrDistortionCap_Chromatic | ovrDistortionCap_TimeWarp, &meshData);
// Now parse the vertex data and create a render ready vertex buffer from it
ovrDistortionVertex* ov = meshData.pVertexData;
osg::Vec2Array* positionArray = new osg::Vec2Array;
osg::Vec4Array* colorArray = new osg::Vec4Array;
osg::Vec2Array* textureRArray = new osg::Vec2Array;
osg::Vec2Array* textureGArray = new osg::Vec2Array;
osg::Vec2Array* textureBArray = new osg::Vec2Array;
for (unsigned vertNum = 0; vertNum < meshData.VertexCount; ++vertNum)
{
if (splitViewport) {
// Positions need to be scaled and translated if we are using one viewport per eye
if (eye == LEFT) {
positionArray->push_back(osg::Vec2f(2 * ov[vertNum].ScreenPosNDC.x + 1.0, ov[vertNum].ScreenPosNDC.y));
}
else if (eye == RIGHT) {
positionArray->push_back(osg::Vec2f(2 * ov[vertNum].ScreenPosNDC.x - 1.0, ov[vertNum].ScreenPosNDC.y));
}
}
else {
positionArray->push_back(osg::Vec2f(ov[vertNum].ScreenPosNDC.x, ov[vertNum].ScreenPosNDC.y));
}
colorArray->push_back(osg::Vec4f(ov[vertNum].VignetteFactor, ov[vertNum].VignetteFactor, ov[vertNum].VignetteFactor, ov[vertNum].TimeWarpFactor));
textureRArray->push_back(osg::Vec2f(ov[vertNum].TanEyeAnglesR.x, ov[vertNum].TanEyeAnglesR.y));
textureGArray->push_back(osg::Vec2f(ov[vertNum].TanEyeAnglesG.x, ov[vertNum].TanEyeAnglesG.y));
textureBArray->push_back(osg::Vec2f(ov[vertNum].TanEyeAnglesB.x, ov[vertNum].TanEyeAnglesB.y));
}
// Get triangle indicies
osg::UShortArray* indexArray = new osg::UShortArray;
unsigned short* index = meshData.pIndexData;
for (unsigned indexNum = 0; indexNum < meshData.IndexCount; ++indexNum) {
indexArray->push_back(index[indexNum]);
}
// Deallocate the mesh data
ovrHmd_DestroyDistortionMesh(&meshData);
osg::ref_ptr<osg::Geometry> geometry = new osg::Geometry;
geometry->setUseDisplayList( false );
geometry->setUseVertexBufferObjects(true);
osg::ref_ptr<osg::DrawElementsUShort> drawElement = new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLES, indexArray->size(), (GLushort*) indexArray->getDataPointer());
geometry->addPrimitiveSet(drawElement);
GLuint positionLoc = 0;
GLuint colorLoc = 1;
GLuint texCoord0Loc = 2;
GLuint texCoord1Loc = 3;
GLuint texCoord2Loc = 4;
program->addBindAttribLocation("Position", positionLoc);
geometry->setVertexAttribArray(positionLoc, positionArray);
geometry->setVertexAttribBinding(positionLoc, osg::Geometry::BIND_PER_VERTEX);
program->addBindAttribLocation("Color", colorLoc);
geometry->setVertexAttribArray(colorLoc, colorArray);
geometry->setVertexAttribBinding(colorLoc, osg::Geometry::BIND_PER_VERTEX);
program->addBindAttribLocation("TexCoord0", texCoord0Loc);
geometry->setVertexAttribArray(texCoord0Loc, textureRArray);
geometry->setVertexAttribBinding(texCoord0Loc, osg::Geometry::BIND_PER_VERTEX);
program->addBindAttribLocation("TexCoord1", texCoord1Loc);
geometry->setVertexAttribArray(texCoord1Loc, textureGArray);
geometry->setVertexAttribBinding(texCoord1Loc, osg::Geometry::BIND_PER_VERTEX);
program->addBindAttribLocation("TexCoord2", texCoord2Loc);
geometry->setVertexAttribArray(texCoord2Loc, textureBArray);
geometry->setVertexAttribBinding(texCoord2Loc, osg::Geometry::BIND_PER_VERTEX);
// Compute UV scale and offset
ovrRecti eyeRenderViewport;
eyeRenderViewport.Pos.x = x;
eyeRenderViewport.Pos.y = y;
eyeRenderViewport.Size.w = w;
eyeRenderViewport.Size.h = h;
ovrSizei renderTargetSize;
renderTargetSize.w = m_renderTargetSize.w / 2;
renderTargetSize.h = m_renderTargetSize.h;
ovrHmd_GetRenderScaleAndOffset(m_eyeRenderDesc[eye].Fov, renderTargetSize, eyeRenderViewport, m_UVScaleOffset[eye]);
geode->addDrawable(geometry);
return geode.release();
}
//-------------------------------------------------------------------------------------
int Init()
{
// Initializes LibOVR, and the Rift
ovr_Initialize();
if (!HMD)
{
HMD = ovrHmd_Create(0);
if (!HMD)
{
MessageBoxA(NULL, "Oculus Rift not detected.", "", MB_OK);
return(1);
}
if (HMD->ProductName[0] == '\0')
MessageBoxA(NULL, "Rift detected, display not enabled.", "", MB_OK);
}
//Setup Window and Graphics - use window frame if relying on Oculus driver
const int backBufferMultisample = 1;
bool UseAppWindowFrame = (HMD->HmdCaps & ovrHmdCap_ExtendDesktop) ? false : true;
HWND window = Util_InitWindowAndGraphics(Recti(HMD->WindowsPos, HMD->Resolution),
FullScreen, backBufferMultisample, UseAppWindowFrame,&pRender);
if (!window) return 1;
ovrHmd_AttachToWindow(HMD, window, NULL, NULL);
//Configure Stereo settings.
Sizei recommenedTex0Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Left, HMD->DefaultEyeFov[0], 1.0f);
Sizei recommenedTex1Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Right, HMD->DefaultEyeFov[1], 1.0f);
Sizei RenderTargetSize;
RenderTargetSize.w = recommenedTex0Size.w + recommenedTex1Size.w;
RenderTargetSize.h = max ( recommenedTex0Size.h, recommenedTex1Size.h );
const int eyeRenderMultisample = 1;
pRendertargetTexture = pRender->CreateTexture(Texture_RGBA | Texture_RenderTarget |
eyeRenderMultisample,
RenderTargetSize.w, RenderTargetSize.h, NULL);
// The actual RT size may be different due to HW limits.
RenderTargetSize.w = pRendertargetTexture->GetWidth();
RenderTargetSize.h = pRendertargetTexture->GetHeight();
// Initialize eye rendering information.
// The viewport sizes are re-computed in case RenderTargetSize changed due to HW limitations.
ovrFovPort eyeFov[2] = { HMD->DefaultEyeFov[0], HMD->DefaultEyeFov[1] } ;
EyeRenderViewport[0].Pos = Vector2i(0,0);
EyeRenderViewport[0].Size = Sizei(RenderTargetSize.w / 2, RenderTargetSize.h);
EyeRenderViewport[1].Pos = Vector2i((RenderTargetSize.w + 1) / 2, 0);
EyeRenderViewport[1].Size = EyeRenderViewport[0].Size;
#if SDK_RENDER
// Query OGL texture data.
EyeTexture[0].OGL.Header.API = ovrRenderAPI_OpenGL;
EyeTexture[0].OGL.Header.TextureSize = RenderTargetSize;
EyeTexture[0].OGL.Header.RenderViewport = EyeRenderViewport[0];
EyeTexture[0].OGL.TexId = pRendertargetTexture->TexId;
// Right eye uses the same texture, but different rendering viewport.
EyeTexture[1] = EyeTexture[0];
EyeTexture[1].OGL.Header.RenderViewport = EyeRenderViewport[1];
// Configure OpenGL.
ovrGLConfig oglcfg;
oglcfg.OGL.Header.API = ovrRenderAPI_OpenGL;
oglcfg.OGL.Header.RTSize = Sizei(HMD->Resolution.w, HMD->Resolution.h);
oglcfg.OGL.Header.Multisample = backBufferMultisample;
oglcfg.OGL.Window = window;
oglcfg.OGL.DC = GetDC(window);
if (!ovrHmd_ConfigureRendering(HMD, &oglcfg.Config,
ovrDistortionCap_Chromatic | ovrDistortionCap_Vignette |
ovrDistortionCap_TimeWarp | ovrDistortionCap_Overdrive,
eyeFov, EyeRenderDesc)) return(1);
#else
//Distortion vertex shader
const char* vertexShader =
"#version 110 \n"
"uniform vec2 EyeToSourceUVScale; \n"
"uniform vec2 EyeToSourceUVOffset; \n"
"uniform mat4 EyeRotationStart; \n"
"uniform mat4 EyeRotationEnd; \n"
"attribute vec2 Position; \n"
"attribute vec2 inTWLF_V; \n"
"attribute vec2 inTexCoord0; \n"
"attribute vec2 inTexCoord1; \n"
"attribute vec2 inTexCoord2; \n"
"varying vec4 oPosition; \n"
"varying vec2 oTexCoord0; \n"
"varying vec2 oTexCoord1; \n"
"varying vec2 oTexCoord2; \n"
"varying float oVignette; \n"
"vec2 TexCoord0 = vec2(inTexCoord0.x, -inTexCoord0.y); \n"
"vec2 TexCoord1 = vec2(inTexCoord1.x, -inTexCoord1.y); \n"
"vec2 TexCoord2 = vec2(inTexCoord2.x, -inTexCoord2.y); \n"
"float timewarpLerpFactor = inTWLF_V.x; \n"
"float Vignette = inTWLF_V.y; \n"
"vec2 TimewarpTexCoord( in vec2 TexCoord, in mat4 rotMat ) \n"
"{ \n"
// Vertex inputs are in TanEyeAngle space for the R,G,B channels (i.e. after chromatic
// aberration and distortion). These are now "real world" vectors in direction (x,y,1)
// relative to the eye of the HMD. Apply the 3x3 timewarp rotation to these vectors.
" vec3 transformed = vec3( ( rotMat * vec4( TexCoord.xy , 1.00000, 1.00000) ).xyz ); \n"
// Project them back onto the Z=1 plane of the rendered images.
" vec2 flattened = (transformed.xy / transformed.z ); \n"
// Scale them into ([0,0.5],[0,1]) or ([0.5,0],[0,1]) UV lookup space (depending on eye)
" return ((EyeToSourceUVScale * flattened) + EyeToSourceUVOffset); \n"
"} \n"
"mat4 mat4_lerp( in mat4 x, in mat4 y, in mat4 s ) \n"
"{ \n"
" return mat4(mix(x[0],y[0],s[0]), mix(x[1],y[1],s[1]), mix(x[2],y[2],s[2]), mix(x[3],y[3],s[3]));\n"
"} \n"
"void main() \n"
"{ \n"
" mat4 lerpedEyeRot = mat4_lerp( EyeRotationStart, EyeRotationEnd, mat4( timewarpLerpFactor));\n"
" oTexCoord0 = TimewarpTexCoord( TexCoord0, lerpedEyeRot); \n"
" oTexCoord1 = TimewarpTexCoord( TexCoord1, lerpedEyeRot); \n"
" oTexCoord2 = TimewarpTexCoord( TexCoord2, lerpedEyeRot); \n"
" oPosition = vec4( Position.xy , 0.500000, 1.00000); \n"
" oVignette = Vignette; \n"
" gl_Position = oPosition; \n"
"}";
//Distortion pixel shader
const char* pixelShader =
"#version 110 \n"
"uniform sampler2D Texture0; \n"
"varying vec4 oPosition; \n"
"varying vec2 oTexCoord0; \n"
"varying vec2 oTexCoord1; \n"
"varying vec2 oTexCoord2; \n"
"varying float oVignette; \n"
"void main() \n"
"{ \n"
// 3 samples for fixing chromatic aberrations
" float R = texture2D(Texture0, oTexCoord0.xy).r; \n"
" float G = texture2D(Texture0, oTexCoord1.xy).g; \n"
" float B = texture2D(Texture0, oTexCoord2.xy).b; \n"
" gl_FragColor = (oVignette*vec4(R,G,B,1)); \n"
"}";
pRender->InitShaders(vertexShader, pixelShader, &Shaders);
for ( int eyeNum = 0; eyeNum < 2; eyeNum++ )
{
// Allocate mesh vertices, registering with renderer using the OVR vertex format.
ovrDistortionMesh meshData;
ovrHmd_CreateDistortionMesh(HMD, (ovrEyeType) eyeNum, eyeFov[eyeNum],
ovrDistortionCap_Chromatic | ovrDistortionCap_TimeWarp, &meshData);
MeshVBs[eyeNum] = *pRender->CreateBuffer();
MeshVBs[eyeNum]->Data(Buffer_Vertex,meshData.pVertexData,sizeof(ovrDistortionVertex)*meshData.VertexCount);
MeshIBs[eyeNum] = *pRender->CreateBuffer();
MeshIBs[eyeNum]->Data(Buffer_Index,meshData.pIndexData,sizeof(unsigned short) * meshData.IndexCount);
ovrHmd_DestroyDistortionMesh( &meshData );
//Create eye render description for use later
EyeRenderDesc[eyeNum] = ovrHmd_GetRenderDesc(HMD, (ovrEyeType) eyeNum, eyeFov[eyeNum]);
//Do scale and offset
ovrHmd_GetRenderScaleAndOffset(eyeFov[eyeNum],RenderTargetSize, EyeRenderViewport[eyeNum], UVScaleOffset[eyeNum]);
}
#endif
ovrHmd_SetEnabledCaps(HMD, ovrHmdCap_LowPersistence | ovrHmdCap_DynamicPrediction);
// Start the sensor which informs of the Rift's pose and motion
ovrHmd_ConfigureTracking(HMD, ovrTrackingCap_Orientation |
ovrTrackingCap_MagYawCorrection |
ovrTrackingCap_Position, 0);
// This creates lights and models.
pRoomScene = new Scene;
PopulateRoomScene(pRoomScene, pRender);
return (0);
}
int Init()
{
ovr_Initialize();
HMD = ovrHmd_Create(0);
if (!HMD)
{
MessageBox(NULL, "Oculus Rift not detected.", "", MB_OK);
return 1;
}
if (HMD->ProductName[0] == '\0')
{
MessageBox(NULL, "Rift detected, display not enabled.", "", MB_OK);
}
//Setup Window and Graphics - use window frame if relying on Oculus driver
const int backBufferMultisample = 1;
bool UseAppWindowFrame = true;
HWND window = Util_InitWindowAndGraphics(Recti(HMD->WindowsPos, HMD->Resolution),
FullScreen, backBufferMultisample, UseAppWindowFrame, &pRender);
if (!window) return 1;
ovrHmd_AttachToWindow(HMD, window, NULL, NULL);
Sizei recommenedTex0Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Left, HMD->DefaultEyeFov[0], 1.0f);
Sizei recommenedTex1Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Right, HMD->DefaultEyeFov[1], 1.0f);
Sizei RenderTargetSize;
RenderTargetSize.w = recommenedTex0Size.w + recommenedTex1Size.w;
RenderTargetSize.h = max(recommenedTex0Size.h, recommenedTex1Size.h);
RenderTargetSize.w = HMD->Resolution.w;
RenderTargetSize.h = HMD->Resolution.h;
//const int eyeRenderMultisample = 1;
pRendertargetTexture = pRender->CreateRenderTarget(RenderTargetSize.w/2, RenderTargetSize.h/2);
//pRendertargetTexture = pRender->CreateRenderTarget(512, 512);
RenderTargetSize.w = pRendertargetTexture->Width;
RenderTargetSize.h = pRendertargetTexture->Height;
IDirect3DSurface9 *zb = 0;
pRender->Device->GetDepthStencilSurface(&zb);
D3DSURFACE_DESC d;
zb->GetDesc(&d);
// Initialize eye rendering information.
// The viewport sizes are re-computed in case RenderTargetSize due to HW limitations.
ovrFovPort eyeFov[2] = { HMD->DefaultEyeFov[0], HMD->DefaultEyeFov[1] };
EyeRenderViewport[0].Pos = Vector2i(0, 0);
EyeRenderViewport[0].Size = Sizei(RenderTargetSize.w / 2, RenderTargetSize.h);
EyeRenderViewport[1].Pos = Vector2i((RenderTargetSize.w + 1) / 2, 0);
EyeRenderViewport[1].Size = EyeRenderViewport[0].Size;
// ---------------------
DistortionShaders = pRender->CreateShaderSet();
DistortionShaders->SetShader(pRender->LoadBuiltinShader(Shader_Vertex, VShader_Distortion));
DistortionShaders->SetShader(pRender->LoadBuiltinShader(Shader_Pixel, PShader_Distortion));
DistortionDecl = VertexDecl::GetDecl(VertexType_Distortion);
for (int eyeNum = 0; eyeNum < 2; ++eyeNum)
{
ovrDistortionMesh meshData;
ovrHmd_CreateDistortionMesh(HMD, (ovrEyeType)eyeNum, eyeFov[eyeNum],
ovrDistortionCap_Chromatic | ovrDistortionCap_TimeWarp, &meshData);
MeshVBs[eyeNum] = pRender->CreateVertexBuffer();
MeshVBs[eyeNum]->Data(meshData.pVertexData, sizeof(ovrDistortionVertex)*meshData.VertexCount);
MeshIBs[eyeNum] = pRender->CreateIndexBuffer();
MeshIBs[eyeNum]->Data(meshData.pIndexData, sizeof(unsigned short)*meshData.IndexCount);
MeshVBCnts[eyeNum] = meshData.VertexCount;
MeshIBCnts[eyeNum] = meshData.IndexCount;
ovrHmd_DestroyDistortionMesh(&meshData);
EyeRenderDesc[eyeNum] = ovrHmd_GetRenderDesc(HMD, (ovrEyeType)eyeNum, eyeFov[eyeNum]);
ovrHmd_GetRenderScaleAndOffset(eyeFov[eyeNum], RenderTargetSize, EyeRenderViewport[eyeNum], UVScaleOffset[eyeNum]);
}
ovrHmd_SetEnabledCaps(HMD, ovrHmdCap_LowPersistence | ovrHmdCap_DynamicPrediction);
ovrHmd_ConfigureTracking(HMD,
ovrTrackingCap_Orientation | ovrTrackingCap_MagYawCorrection | ovrTrackingCap_Position, 0);
// ---------------------
pRoomScene = new Scene;
PopulateRoomScene(pRoomScene, pRender);
// texture model
ShaderSet* ss = pRender->CreateShaderSet();
ss->SetShader(pRender->LoadBuiltinShader(Shader_Vertex, VShader_MVP_UV));
ss->SetShader(pRender->LoadBuiltinShader(Shader_Pixel, PShader_UV));
Model<VertexXYZUV> *pModel2 = new Model<VertexXYZUV>();
pModel2->Decl = VertexDecl::GetDecl(VertexType_XYZUV);
pModel2->Fill = new ShaderFill(ss);
//Texture* ttt = new Texture(pRender);
//ttt->LoadFromFile("face.tga");
pModel2->Fill->SetTexture(0, pRendertargetTexture);
pModel2->AddVertex(VertexXYZUV(0.5f, -1.0f, 0.0f, 0.0f, 0.0f));
pModel2->AddVertex(VertexXYZUV(2.5f, -1.0f, 0.0f, 1.0f, 0.0f));
pModel2->AddVertex(VertexXYZUV(0.5f, 1.0f, 0.0f, 0.0f, 1.0f));
pModel2->AddVertex(VertexXYZUV(2.5f, 1.0f, 0.0f, 1.0f, 1.0f));
pModel2->AddVertex(VertexXYZUV(-1.0f, -1.5f, -1.0f, 0.0f, 0.0f));
pModel2->AddVertex(VertexXYZUV(1.0f, -1.5f, -1.0f, 1.0f, 0.0f));
pModel2->AddVertex(VertexXYZUV(-1.0f, -1.5f, 1.0f, 0.0f, 1.0f));
pModel2->AddVertex(VertexXYZUV(1.0f, -1.5f, 1.0f, 1.0f, 1.0f));
pModel2->AddTriangle(0, 1, 2);
pModel2->AddTriangle(2, 1, 3);
pModel2->AddTriangle(4, 5, 6);
pModel2->AddTriangle(6, 5, 7);
pScene = new Scene;
pScene->World.Add(pModel2);
return (0);
}
void gkOculus::InitHMD()
{
ovrHmd_SetEnabledCaps(HMD, ovrHmdCap_LowPersistence);
// Start the sensor which informs of the Rift's pose and motion
ovrHmd_ConfigureTracking(HMD, ovrTrackingCap_Orientation |
ovrTrackingCap_MagYawCorrection |
ovrTrackingCap_Position, 0);
OVR::Sizei recommenedTex0Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Left, HMD->DefaultEyeFov[0], 1.0f);
OVR::Sizei recommenedTex1Size = ovrHmd_GetFovTextureSize(HMD, ovrEye_Right, HMD->DefaultEyeFov[1], 1.0f);
gEnv->pRenderer->SetOverrideSize( recommenedTex0Size.w, recommenedTex0Size.h, true );
gkTexturePtr tex = gEnv->pSystem->getTextureMngPtr()->getByName(_T("RT_BACKBUFFER_STEREOOUT"));
for (int eyenum=0; eyenum < 2; ++eyenum)
{
m_disortation_renderable_eyes[eyenum] = new gkOculusDisortationRenderable(this);
m_disortation_renderable_eyes[eyenum]->m_eye_index = eyenum;
m_disortation_renderable_eyes[eyenum]->HMD = HMD;
gkNameValuePairList createlist;
createlist[_T("file")] = _T("engine/assets/meshs/oculus_disort.mtl");
TCHAR buffer[255];
_stprintf( buffer, _T("$OculusDisortation_%d"), eyenum );
gkMaterialPtr mat = gEnv->pSystem->getMaterialMngPtr()->create( buffer, _T("stereo"), &createlist );
mat->load();
mat->setTexture( tex , 0);
m_disortation_renderable_eyes[eyenum]->m_material = mat;
_stprintf( buffer, _T("$OculusDisortationMesh_%d"), eyenum );
createlist[_T("type")] = _T("Pt2T2T2T2T2");
gkMeshPtr mesh = gEnv->pSystem->getMeshMngPtr()->create( buffer, _T("stereo"), &createlist );
mesh->load();
m_disortation_renderable_eyes[eyenum]->m_mesh = mesh;
ovrFovPort eyeFov[2] = { HMD->DefaultEyeFov[0], HMD->DefaultEyeFov[1] } ;
float fovy = atan( eyeFov[0].UpTan ) * 2;
gEnv->p3DEngine->getMainCamera()->setFOVy( fovy );
ovrDistortionMesh meshData;
ovrHmd_CreateDistortionMesh(HMD, (ovrEyeType)eyenum, eyeFov[eyenum],
ovrDistortionCap_Chromatic | ovrDistortionCap_TimeWarp, &meshData);
mesh->getVertexBuffer()->resizeDiscard( meshData.VertexCount );
mesh->getIndexBuffer()->resizeDiscard( meshData.IndexCount );
memcpy( mesh->getVertexBuffer()->data, meshData.pVertexData, meshData.VertexCount * sizeof(ovrDistortionVertex) );
memcpy( mesh->getIndexBuffer()->data, meshData.pIndexData, meshData.IndexCount * sizeof(unsigned short) );
ovrHmd_DestroyDistortionMesh( &meshData );
//Create eye render description for use later
EyeRenderDesc[eyenum] = ovrHmd_GetRenderDesc(HMD, (ovrEyeType)eyenum, eyeFov[eyenum]);
//Do scale and offset
OVR::Sizei RenderTargetSize;
RenderTargetSize.w = recommenedTex0Size.w;
RenderTargetSize.h = recommenedTex1Size.h;
ovrRecti EyeRenderViewport[2];
EyeRenderViewport[0].Pos = OVR::Vector2i(0,0);
EyeRenderViewport[0].Size = OVR::Sizei(RenderTargetSize.w / 2, RenderTargetSize.h);
EyeRenderViewport[1].Pos = OVR::Vector2i((RenderTargetSize.w + 1) / 2, 0);
EyeRenderViewport[1].Size = EyeRenderViewport[0].Size;
ovrHmd_GetRenderScaleAndOffset(eyeFov[eyenum],RenderTargetSize, EyeRenderViewport[eyenum], m_disortation_renderable_eyes[eyenum]->UVScaleOffset[eyenum]);
}
}
