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|
void RenduCubeMap( ID3D10Device* pd3dDevice )
{
HRESULT hr = E_FAIL;
struct CubeMapVertex
{
D3DXVECTOR3 Pos;
D3DXVECTOR3 Normal;
D3DXVECTOR2 Tex;
};
D3DXMATRIX matCubeMapView[6]; // tableau de vues pour les face du cube
ID3D10EffectTechnique* g_pRenderCubeMapTech; // techniques shader
ID3D10EffectShaderResourceVariable* ptxDiffuse;
ID3D10EffectMatrixVariable* pmWorld;
ID3D10EffectMatrixVariable* pmView;
ID3D10EffectMatrixVariable* pmProj;
ID3D10EffectMatrixVariable* pmWorldView;
ID3D10EffectMatrixVariable* pmWorldViewProj;
ID3D10Texture2D* g_pEnvMap; // Environment map
ID3D10RenderTargetView* g_pEnvMapRTV; // Render target view for the alpha map
ID3D10Texture2D* g_pEnvMapDepth; // Depth stencil for the environment map
ID3D10DepthStencilView* g_pEnvMapDSV; // Depth stencil view for environment map for all 6 faces
ID3D10DepthStencilView* g_pEnvMapOneDSV; // Depth stencil view for environment map for all 1 face
//ID3D10Buffer* g_pVBVisual; // Vertex buffer for quad used for visualization
ID3D10EffectVectorVariable* g_pvDiffuse; // élciarage diffus
ID3D10EffectVectorVariable* g_pvSpecular; // éclairage spéculaire
ID3D10EffectVectorVariable* g_pvEye; // eye dir
ID3D10EffectMatrixVariable* g_pmViewCM; // matrice de vue globale cube map
ID3D10InputLayout* g_pVertexLayout = NULL;
ID3D10InputLayout* g_pVertexLayoutCM = NULL; // layout cube map
ID3D10InputLayout* g_pVertexLayoutCMInst = NULL; // layout cube map instancié
ID3D10InputLayout* g_pVertexLayoutEnv = NULL;
D3DXMATRIX g_amCubeMapViewAdjust[6]; // Adjustment for view matrices when rendering the cube map
D3DXMATRIX g_mProjCM; // Projection matrix for cubic env map rendering
// initialisation procédure
if ( !g_stbCubemapInited )
{
g_stbCubemapInited = true; // maj drapeaux d'initialisation
// génère les cube map view matrices, orientées selon chaque face
float fHeight = 1.5f;
D3DXVECTOR3 vEyePt = D3DXVECTOR3( 0.0f, fHeight, 0.0f );
D3DXVECTOR3 vLookDir;
D3DXVECTOR3 vUpDir;
vLookDir = D3DXVECTOR3( 1.0f, fHeight, 0.0f );
vUpDir = D3DXVECTOR3( 0.0f, 1.0f, 0.0f );
D3DXMatrixLookAtLH( &matCubeMapView[0], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( -1.0f, fHeight, 0.0f );
vUpDir = D3DXVECTOR3( 0.0f, 1.0f, 0.0f );
D3DXMatrixLookAtLH( &matCubeMapView[1], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( 0.0f, fHeight + 1.0f, 0.0f );
vUpDir = D3DXVECTOR3( 0.0f, 0.0f, -1.0f );
D3DXMatrixLookAtLH( &matCubeMapView[2], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( 0.0f, fHeight - 1.0f, 0.0f );
vUpDir = D3DXVECTOR3( 0.0f, 0.0f, 1.0f );
D3DXMatrixLookAtLH( &matCubeMapView[3], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( 0.0f, fHeight, 1.0f );
vUpDir = D3DXVECTOR3( 0.0f, 1.0f, 0.0f );
D3DXMatrixLookAtLH( &matCubeMapView[4], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( 0.0f, fHeight, -1.0f );
vUpDir = D3DXVECTOR3( 0.0f, 1.0f, 0.0f );
D3DXMatrixLookAtLH( &matCubeMapView[5], &vEyePt, &vLookDir, &vUpDir );
// compilation shader
if ( !g_pCubeMapEffect )
{
WCHAR* szEffectFilePath = L"c://DOOM2011/Shaders/CubeMapGS.fx";
VerifHR( D3DX10CreateEffectFromFile(
szEffectFilePath,
NULL,
NULL,
"fx_4_0",
D3D10_SHADER_ENABLE_STRICTNESS||D3D10_SHADER_DEBUG,
0,
pd3dDevice,
NULL,
NULL,
&g_pCubeMapEffect,
NULL,
NULL
) );
if ( hr == S_OK )
OutputDebugString( L"compilation c://DOOM2011/Shaders/CubeMapGS.fx OK\n" );
}
// acquiert shader technique handles
g_pRenderCubeMapTech = g_pCubeMapEffect->GetTechniqueByName( "RenderCubeMap" );
//g_pRenderCubeMapInstTech = g_pCubeMapEffect->GetTechniqueByName( "RenderCubeMap_Inst" );
//g_pRenderSceneTech = g_pCubeMapEffect->GetTechniqueByName( "RenderScene" );
//g_pRenderEnvMappedSceneTech = g_pCubeMapEffect->GetTechniqueByName( "RenderEnvMappedScene" );
//g_pRenderEnvMappedSceneNoTexTech = g_pCubeMapEffect->GetTechniqueByName( "RenderEnvMappedScene_NoTexture" );
//g_pRenderEnvMappedGlassTech = g_pCubeMapEffect->GetTechniqueByName( "RenderEnvMappedGlass" );
// obtient les handles des paramètres variables shader
ptxDiffuse = g_pCubeMapEffect->GetVariableByName( "g_txDiffuse" )->AsShaderResource();
//g_ptxEnvMap = g_pCubeMapEffect->GetVariableByName( "g_txEnvMap" )->AsShaderResource();
//g_ptxFalloffMap = g_pCubeMapEffect->GetVariableByName( "g_txFalloff" )->AsShaderResource();
g_pvDiffuse = g_pCubeMapEffect->GetVariableByName( "vMaterialDiff" )->AsVector();
g_pvSpecular = g_pCubeMapEffect->GetVariableByName( "vMaterialSpec" )->AsVector();
g_pvEye = g_pCubeMapEffect->GetVariableByName( "vEye" )->AsVector();
g_pmViewCM = g_pCubeMapEffect->GetVariableByName( "g_mViewCM" )->AsMatrix();
pmWorld = g_pCubeMapEffect->GetVariableByName( "mWorld" )->AsMatrix();
pmView = g_pCubeMapEffect->GetVariableByName( "mView" )->AsMatrix();
pmProj = g_pCubeMapEffect->GetVariableByName( "mProj" )->AsMatrix();
pmWorldView = g_pCubeMapEffect->GetVariableByName( "mWorldView" )->AsMatrix();
pmWorldViewProj= g_pCubeMapEffect->GetVariableByName( "mWorldViewProj" )->AsMatrix();
// créé cubic depth stencil texture.
D3D10_TEXTURE2D_DESC dstex;
dstex.Width = ENVMAPSIZE;
dstex.Height = ENVMAPSIZE;
dstex.MipLevels = 1;
dstex.ArraySize = 6;
dstex.SampleDesc.Count = 1;
dstex.SampleDesc.Quality = 0;
dstex.Format = DXGI_FORMAT_D32_FLOAT;
dstex.Usage = D3D10_USAGE_DEFAULT;
dstex.BindFlags = D3D10_BIND_DEPTH_STENCIL;
dstex.CPUAccessFlags = 0;
dstex.MiscFlags = D3D10_RESOURCE_MISC_TEXTURECUBE;
VerifHR( pd3dDevice->CreateTexture2D( &dstex, NULL, &g_pEnvMapDepth ) );
// créé depth stencil view pour le cube entier
D3D10_DEPTH_STENCIL_VIEW_DESC DescDS;
DescDS.Format = DXGI_FORMAT_D32_FLOAT;
DescDS.ViewDimension = D3D10_DSV_DIMENSION_TEXTURE2DARRAY;
DescDS.Texture2DArray.FirstArraySlice = 0;
DescDS.Texture2DArray.ArraySize = 6;
DescDS.Texture2DArray.MipSlice = 0;
VerifHR( pd3dDevice->CreateDepthStencilView( g_pEnvMapDepth, &DescDS, &g_pEnvMapDSV ) );
// créé un depth stencil view pour single face rendering
DescDS.Texture2DArray.ArraySize = 1;
VerifHR( pd3dDevice->CreateDepthStencilView( g_pEnvMapDepth, &DescDS, &g_pEnvMapOneDSV ) );
// créé texture cube map avec mips pour rendu avec env map render target
dstex.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
dstex.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
dstex.MiscFlags = D3D10_RESOURCE_MISC_GENERATE_MIPS | D3D10_RESOURCE_MISC_TEXTURECUBE;
dstex.MipLevels = MIPLEVELS;
VerifHR( pd3dDevice->CreateTexture2D( &dstex, NULL, &g_pEnvMap ) );
// créé une render target view pour l'ensemble des 6 faces
D3D10_RENDER_TARGET_VIEW_DESC DescRT;
DescRT.Format = dstex.Format;
DescRT.ViewDimension = D3D10_RTV_DIMENSION_TEXTURE2DARRAY;
DescRT.Texture2DArray.FirstArraySlice = 0;
DescRT.Texture2DArray.ArraySize = 6;
DescRT.Texture2DArray.MipSlice = 0;
VerifHR( pd3dDevice->CreateRenderTargetView( g_pEnvMap, &DescRT, &g_pEnvMapRTV ) );
// créé les target views pour chaque face du cube
DescRT.Texture2DArray.ArraySize = 1;
for( int i = 0; i < 6; ++i )
{
DescRT.Texture2DArray.FirstArraySlice = i;
VerifHR( pd3dDevice->CreateRenderTargetView( g_pEnvMap, &DescRT, &g_apEnvMapOneRTV[i] ) );
}
// créé shader resource view pour la cubic env map
D3D10_SHADER_RESOURCE_VIEW_DESC SRVDesc;
ZeroMemory( &SRVDesc, sizeof( SRVDesc ) );
SRVDesc.Format = dstex.Format;
SRVDesc.ViewDimension = D3D10_SRV_DIMENSION_TEXTURECUBE;
SRVDesc.TextureCube.MipLevels = MIPLEVELS;
SRVDesc.TextureCube.MostDetailedMip = 0;
VerifHR( pd3dDevice->CreateShaderResourceView( g_pEnvMap, &SRVDesc, &g_pEnvMapSRV ) );
// définit le vertex data layout
const D3D10_INPUT_ELEMENT_DESC layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D10_INPUT_PER_VERTEX_DATA, 0 },
};
g_pRenderCubeMapTech = g_pCubeMapEffect->GetTechniqueByName( "RenderCubeMap" );
// créé le vertex layout pour la cube map
D3D10_PASS_DESC PassDesc;
g_pRenderCubeMapTech->GetPassByIndex( 0 )->GetDesc( &PassDesc );
VerifHR( pd3dDevice->CreateInputLayout( layout, 3, PassDesc.pIAInputSignature,
PassDesc.IAInputSignatureSize, &g_pVertexLayoutCM ) );
//g_pRenderCubeMapInstTech->GetPassByIndex( 0 )->GetDesc( &PassDesc );
//VerifHR( pd3dDevice->CreateInputLayout( layout, 3, PassDesc.pIAInputSignature,
// PassDesc.IAInputSignatureSize, &g_pVertexLayoutCMInst ) );
//g_pRenderEnvMappedSceneTech->GetPassByIndex( 0 )->GetDesc( &PassDesc );
//VerifHR( pd3dDevice->CreateInputLayout( layout, 3, PassDesc.pIAInputSignature,
// PassDesc.IAInputSignatureSize, &g_pVertexLayoutEnv ) );
// créé matrice de projection cube map
D3DXMatrixPerspectiveFovLH( &g_mProjCM, D3DX_PI * 0.5f, 1.0f, .5f, 1000.f );
// créé un quad vertex buffer pour la visualisation
D3D10_BUFFER_DESC bufferdesc =
{
6 * sizeof( CubeMapVertex ),
D3D10_USAGE_DEFAULT,
D3D10_BIND_VERTEX_BUFFER,
0,
0
};
CubeMapVertex QuadVertices[6] =
{
{ D3DXVECTOR3( -1.0f, 1.0f, 0.5f ), D3DXVECTOR3( 0.0f, 0.0f, -1.0f ), D3DXVECTOR2( 0.0f, 0.0f ) },
{ D3DXVECTOR3( 1.0f, 1.0f, 0.5f ), D3DXVECTOR3( 0.0f, 0.0f, -1.0f ), D3DXVECTOR2( 1.0f, 0.0f ) },
{ D3DXVECTOR3( -1.0f, -1.0f, 0.5f ), D3DXVECTOR3( 0.0f, 0.0f, -1.0f ), D3DXVECTOR2( 0.0f, 1.0f ) },
{ D3DXVECTOR3( -1.0f, -1.0f, 0.5f ), D3DXVECTOR3( 0.0f, 0.0f, -1.0f ), D3DXVECTOR2( 0.0f, 1.0f ) },
{ D3DXVECTOR3( 1.0f, 1.0f, 0.5f ), D3DXVECTOR3( 0.0f, 0.0f, -1.0f ), D3DXVECTOR2( 1.0f, 0.0f ) },
{ D3DXVECTOR3( 1.0f, -1.0f, 0.5f ), D3DXVECTOR3( 0.0f, 0.0f, -1.0f ), D3DXVECTOR2( 1.0f, 1.0f ) }
};
D3D10_SUBRESOURCE_DATA InitData =
{
QuadVertices,
sizeof( QuadVertices ),
sizeof( QuadVertices )
};
VerifHR( pd3dDevice->CreateBuffer( &bufferdesc, &InitData, &g_pVBVisual ) ); // pour visualisation ???
} // fin de if !inited
// RenderSceneIntoCubeMap()
// construction de la cube map, sauve old render target et depth stencil
ID3D10RenderTargetView* apOldRTVs[1] = { NULL };
ID3D10DepthStencilView* pOldDS = NULL;
pd3dDevice->OMGetRenderTargets( 1, apOldRTVs, &pOldDS );
// sauve old viewport
D3D10_VIEWPORT OldVP;
UINT cRT = 1;
pd3dDevice->RSGetViewports( &cRT, &OldVP );
// créé un nouveau viewport pour la cube map
D3D10_VIEWPORT SMVP;
SMVP.Height = ENVMAPSIZE;
SMVP.Width = ENVMAPSIZE;
SMVP.MinDepth = 0;
SMVP.MaxDepth = 1;
SMVP.TopLeftX = 0;
SMVP.TopLeftY = 0;
pd3dDevice->RSSetViewports( 1, &SMVP );
// génère les cube map view matrices pour chaque face
float fHeight = 1.5f;
D3DXVECTOR3 vEyePt = D3DXVECTOR3( 0.0f, fHeight, 0.0f );
D3DXVECTOR3 vLookDir;
D3DXVECTOR3 vUpDir;
vLookDir = D3DXVECTOR3( 1.0f, fHeight, 0.0f );
vUpDir = D3DXVECTOR3( 0.0f, 1.0f, 0.0f );
D3DXMatrixLookAtLH( &g_amCubeMapViewAdjust[0], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( -1.0f, fHeight, 0.0f );
vUpDir = D3DXVECTOR3( 0.0f, 1.0f, 0.0f );
D3DXMatrixLookAtLH( &g_amCubeMapViewAdjust[1], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( 0.0f, fHeight + 1.0f, 0.0f );
vUpDir = D3DXVECTOR3( 0.0f, 0.0f, -1.0f );
D3DXMatrixLookAtLH( &g_amCubeMapViewAdjust[2], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( 0.0f, fHeight - 1.0f, 0.0f );
vUpDir = D3DXVECTOR3( 0.0f, 0.0f, 1.0f );
D3DXMatrixLookAtLH( &g_amCubeMapViewAdjust[3], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( 0.0f, fHeight, 1.0f );
vUpDir = D3DXVECTOR3( 0.0f, 1.0f, 0.0f );
D3DXMatrixLookAtLH( &g_amCubeMapViewAdjust[4], &vEyePt, &vLookDir, &vUpDir );
vLookDir = D3DXVECTOR3( 0.0f, fHeight, -1.0f );
vUpDir = D3DXVECTOR3( 0.0f, 1.0f, 0.0f );
D3DXMatrixLookAtLH( &g_amCubeMapViewAdjust[5], &vEyePt, &vLookDir, &vUpDir );
// Here, compute the view matrices used for cube map rendering.
// First, construct mViewAlignCM, a view matrix with the same orientation as m_mView but with eye point at the car position.
// matrice de positionnement de l'observateur pour générer chaque face
D3DXMATRIX mViewAlignCM;
D3DXMatrixIdentity( &mViewAlignCM );
mViewAlignCM._41 = -g_matView._41;
mViewAlignCM._42 = -g_matView._42;
mViewAlignCM._43 = -g_matView._43;
// combine les 6 differentes view direction, corrigé par la position de l'oeil
// pour obtenir une matrice de vue pour chaque face
D3DXMATRIX amViewCM[6];
for( int view = 0; view < 6; ++view )
{
D3DXMatrixMultiply( &amViewCM[view], &mViewAlignCM, &g_amCubeMapViewAdjust[view] );
}
pd3dDevice->IASetInputLayout( g_pVertexLayoutCM ); // assigne le layout rendu cubemap
ID3D10EffectTechnique* pTechnique = g_pCubeMapEffect->GetTechniqueByName( "RenderCubeMap" ); // aquiert handle technique
if ( pTechnique->IsValid() != TRUE )
return;
// assigne variables shader
g_pmViewCM = g_pCubeMapEffect->GetVariableByName( "g_mViewCM" )->AsMatrix();
pmWorld = g_pCubeMapEffect->GetVariableByName( "mWorld" )->AsMatrix();
pmView = g_pCubeMapEffect->GetVariableByName( "mView" )->AsMatrix();
pmProj = g_pCubeMapEffect->GetVariableByName( "mProj" )->AsMatrix();
ptxDiffuse = g_pCubeMapEffect->GetVariableByName( "g_txDiffuse" )->AsShaderResource();
// rendu de chaque face du cube
for( int view = 0; view < 6; ++view )
{
// efface cible et stencil buffer de la face
float ClearColor[4] = { 0.0f, 0.8f, 0.9f, 1.0f };
pd3dDevice->ClearRenderTargetView( g_apEnvMapOneRTV[view], ClearColor );
pd3dDevice->ClearDepthStencilView( g_pEnvMapOneDSV, D3D10_CLEAR_DEPTH, 1.0, 0 );
// fixe cible de rendu selon la face
ID3D10RenderTargetView* aRTViews[ 1 ] = { g_apEnvMapOneRTV[view] };
pd3dDevice->OMSetRenderTargets( sizeof( aRTViews ) / sizeof( aRTViews[0] ), aRTViews, g_pEnvMapOneDSV );
// assigne variables shader
pmWorld->SetMatrix( ( float* )&g_matWorld ); // matrice du monde
g_pmViewCM->SetMatrix( ( float* )&amViewCM[view] ); // matrice de vue de la face
pmProj->SetMatrix( ( float* )&g_matProj ); // matrice de projection
ptxDiffuse->SetResource( g_pTestTex1_SRV ); // texture pour la face
// MANQUE QUELQUE CHOSE ICI ??
// rendu tableau instancié étoiles sur la face du cube
Rendu_F9( pd3dDevice );
}
pd3dDevice->RSSetViewports( 1, &OldVP ); // restaure old view port
pd3dDevice->OMSetRenderTargets( 1, apOldRTVs, pOldDS ); // restaure old RT and DS buffer views
pd3dDevice->GenerateMips( g_pEnvMapSRV ); // Generate Mip Maps ???
SAFE_RELEASE( apOldRTVs[0] ); // libère les cibles de rendu
SAFE_RELEASE( pOldDS );
// fin de RenderSceneIntoCubeMap()
// DEBUG: sauve texture 2D de la map créée
// dimensions : 3072x512, 6*512 de large
D3DX10_IMAGE_FILE_FORMAT loadinfo = D3DX10_IFF_DDS;
VerifHR( D3DX10SaveTextureToFileW(
g_pEnvMap,
loadinfo,
L"C://DOOM2011/Test_cubemap.dds"
) );
// DEBUG 13-2-2011
// à faire exploiter le résultat du rendu cubemap qui de setrouve dans g_pEnvMapSRV texture cube
return;
} |
Cube map
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