void SolarSysDemo::genSphericalTexCoords()
{
// D3DXCreate* functions generate vertices with position
// and normal data. But for texturing, we also need
// tex-coords. So clone the mesh to change the vertex
// format to a format with tex-coords.
D3DVERTEXELEMENT9 elements[64];
UINT numElements = 0;
VertexPNT::Decl->GetDeclaration(elements, &numElements);
ID3DXMesh* temp = 0;
HR(mSphere->CloneMesh(D3DXMESH_SYSTEMMEM,
elements, gd3dDevice, &temp));
ReleaseCOM(mSphere);
// Now generate texture coordinates for each vertex.
VertexPNT* vertices = 0;
HR(temp->LockVertexBuffer(0, (void**)&vertices));
for(UINT i = 0; i < temp->GetNumVertices(); ++i)
{
// Convert to spherical coordinates.
D3DXVECTOR3 p = vertices[i].pos;
float theta = atan2f(p.z, p.x);
float phi = acosf(p.y / sqrtf(p.x*p.x+p.y*p.y+p.z*p.z));
// Phi and theta give the texture coordinates, but are not in
// the range [0, 1], so scale them into that range.
float u = theta / (2.0f*D3DX_PI);
float v = phi / D3DX_PI;
// Save texture coordinates.
vertices[i].tex0.x = u;
vertices[i].tex0.y = v;
}
HR(temp->UnlockVertexBuffer());
// Clone back to a hardware mesh.
HR(temp->CloneMesh(D3DXMESH_MANAGED | D3DXMESH_WRITEONLY,
elements, gd3dDevice, &mSphere));
ReleaseCOM(temp);
}
void Cone3D::buildTexCoords(IDirect3DDevice9* gd3dDevice)
{
D3DVERTEXELEMENT9 elements[64];
UINT numElements = 0;
VertexPos::Decl->GetDeclaration(elements, &numElements);
ID3DXMesh* temp = 0;
HR(mpMesh->CloneMesh(D3DXMESH_SYSTEMMEM,
elements, gd3dDevice, &temp));
ReleaseCOM(mpMesh);
// Now generate texture coordinates for each vertex.
VertexPos* vertices = 0;
HR(temp->LockVertexBuffer(0, (void**)&vertices));
D3DXVECTOR3 maxPoint(-FLT_MAX, -FLT_MAX, -FLT_MAX);
D3DXVECTOR3 minPoint(FLT_MAX, FLT_MAX, FLT_MAX);
for (UINT i = 0; i < temp->GetNumVertices(); ++i)
{
D3DXVec3Maximize(&maxPoint, &maxPoint, &vertices[i].mPos);
D3DXVec3Minimize(&minPoint, &minPoint, &vertices[i].mPos);
}
float a = minPoint.z;
float b = maxPoint.z;
float h = b - a;
for (int i = 0; i < (int)temp->GetNumVertices(); i++)
{
float x = vertices[i].mPos.x;
float y = vertices[i].mPos.z;
float z = vertices[i].mPos.y;
float theta = atan2f(z, x);
float y2 = y - b;
float u = theta / (2.0f * D3DX_PI);
float v = y2 / -h;
vertices[i].mTexCoord.x = u;
vertices[i].mTexCoord.y = v;
}
HR(temp->UnlockVertexBuffer());
HR(temp->CloneMesh(D3DXMESH_MANAGED | D3DXMESH_WRITEONLY,
elements, gd3dDevice, &mpMesh));
ReleaseCOM(temp);
}
void MeshX::BuildSkinnedMesh()
{
ID3DXMesh* oldMesh = allocMeshHierarchy.GetMeshList().front()->MeshData.pMesh;
//compute normal
D3DVERTEXELEMENT9 elements[MAX_FVF_DECL_SIZE];
oldMesh->GetDeclaration(elements);
ID3DXMesh* tempMesh = 0;
ID3DXMesh* tempOpMesh = 0;
oldMesh->CloneMesh(D3DXMESH_SYSTEMMEM, elements, pDevice, &tempMesh);
if( !HasNormals(tempMesh) )
D3DXComputeNormals(tempMesh, 0);
//optimize the mesh
DWORD* adj = new DWORD[tempMesh->GetNumFaces()*3];
ID3DXBuffer* remap = 0;
tempMesh->GenerateAdjacency(0.00001f, adj);
tempMesh->Optimize(D3DXMESH_SYSTEMMEM | D3DXMESHOPT_VERTEXCACHE |
D3DXMESHOPT_ATTRSORT, adj, 0, 0, &remap, &tempOpMesh);
SafeRelease(tempMesh);
// In the .X file (specifically the array DWORD vertexIndices[nWeights]
// data member of the SkinWeights template) each bone has an array of
// indices which identify the vertices of the mesh that the bone influences.
// Because we have just rearranged the vertices (from optimizing), the vertex
// indices of a bone are obviously incorrect (i.e., they index to vertices the bone
// does not influence since we moved vertices around). In order to update a bone's
// vertex indices to the vertices the bone _does_ influence, we simply need to specify
// where we remapped the vertices to, so that the vertex indices can be updated to
// match. This is done with the ID3DXSkinInfo::Remap method.
skinInfo->Remap(tempOpMesh->GetNumVertices(),
(DWORD*)remap->GetBufferPointer());
SafeRelease(remap); // Done with remap info.
DWORD numBoneComboEntries = 0;
ID3DXBuffer* boneComboTable = 0;
DWORD maxVertInfluences;
skinInfo->ConvertToIndexedBlendedMesh(tempOpMesh, 0,
128, 0, 0, 0, 0, &maxVertInfluences,
&numBoneComboEntries, &boneComboTable, &this->mesh);
SafeRelease(tempOpMesh);
SafeRelease(boneComboTable);
delete[] adj;
}
void LoadXFile(const std::string & filename, ID3DXMesh** meshOut, std::vector<Mtrl> & mtrls, std::vector<IDirect3DTexture9*> & texs)
{
ID3DXMesh* meshSys = 0;
ID3DXBuffer * adjBuffer = 0;
ID3DXBuffer * mtrlBuffer = 0;
DWORD numMtrls = 0;
//step 1. Load the x file into system memory
HR(D3DXLoadMeshFromX(filename.c_str(), D3DXMESH_SYSTEMMEM, gd3dDevice, &adjBuffer, &mtrlBuffer, 0, &numMtrls, &meshSys));
//step 2. look into MAX_FVF_DECL_SIZE
D3DVERTEXELEMENT9 elems[MAX_FVF_DECL_SIZE];
HR(meshSys->GetDeclaration(elems));
bool hasNormals = false;
D3DVERTEXELEMENT9 term = D3DDECL_END();
for(int i = 0; i < MAX_FVF_DECL_SIZE; ++i)
{
//did we reach end?
if(elems[i].Stream == 0xff)
break;
if(elems[i].Type == D3DDECLTYPE_FLOAT3 && elems[i].Usage == D3DDECLUSAGE_NORMAL && elems[i].UsageIndex == 0)
{
hasNormals = true;
break;
}
}
//step 3.
D3DVERTEXELEMENT9 elements[64];
UINT numElements = 0;
VertexPNT::Decl->GetDeclaration(elements, &numElements);
ID3DXMesh * temp = 0;
//HR(meshSys->CloneMesh(D3DXMESH_SYSTEMMEM, elements, gd3dDevice, &temp));
HR(meshSys->CloneMesh(D3DXMESH_32BIT, elements, gd3dDevice, &temp));
ReleaseCOM(meshSys);
meshSys = temp;
//step 4
if( hasNormals == false )
HR(D3DXComputeNormals(meshSys, 0));
//step 5
HR(meshSys->Optimize(D3DXMESH_MANAGED | D3DXMESHOPT_COMPACT | D3DXMESHOPT_ATTRSORT
| D3DXMESHOPT_VERTEXCACHE, (DWORD*)adjBuffer->GetBufferPointer(), 0, 0, 0, meshOut));
ReleaseCOM(meshSys); //Done w/ system mesh
ReleaseCOM(adjBuffer); //done with buffer
//step 6: get the materials and load the textures
if(mtrlBuffer != 0 && numMtrls != 0)
{
D3DXMATERIAL *d3dxMtrls = (D3DXMATERIAL*)mtrlBuffer->GetBufferPointer();
for(DWORD i = 0; i < numMtrls; ++i)
{
//save the ith material. MatD3D ambient
//doesnt have a default value, so I'm setting
//it to be the same as the diffuse
Mtrl m;
m.ambient = d3dxMtrls[i].MatD3D.Diffuse;
m.diffuse = d3dxMtrls[i].MatD3D.Diffuse;
m.spec = d3dxMtrls[i].MatD3D.Specular;
m.specPower = d3dxMtrls[i].MatD3D.Power;
mtrls.push_back(m);
//check if the ith material has an associative texture
if(d3dxMtrls[i].pTextureFilename != 0)
{
//yes, load the texture for the ith subset
IDirect3DTexture9* tex = 0;
char *texFN = d3dxMtrls[i].pTextureFilename;
HR(D3DXCreateTextureFromFile(gd3dDevice, texFN, &tex));
//save the loaded texure
texs.push_back(tex);
}
else
{
//no texture
texs.push_back( 0 );
}
}
}
ReleaseCOM(mtrlBuffer); // done with the buffer
}
void LoadXFile(
const std::string& filename,
ID3DXMesh** meshOut,
std::vector<Mtrl>& mtrls,
std::vector<IDirect3DTexture9*>& texs)
{
// Step 1: Load the .x file from file into a system memory mesh.
ID3DXMesh* meshSys = 0;
ID3DXBuffer* adjBuffer = 0;
ID3DXBuffer* mtrlBuffer = 0;
DWORD numMtrls = 0;
HR(D3DXLoadMeshFromX(filename.c_str(), D3DXMESH_SYSTEMMEM, gd3dDevice,
&adjBuffer, &mtrlBuffer, 0, &numMtrls, &meshSys));
// Step 2: Find out if the mesh already has normal info?
D3DVERTEXELEMENT9 elems[MAX_FVF_DECL_SIZE];
HR(meshSys->GetDeclaration(elems));
bool hasNormals = false;
D3DVERTEXELEMENT9 term = D3DDECL_END();
for(int i = 0; i < MAX_FVF_DECL_SIZE; ++i)
{
// Did we reach D3DDECL_END() {0xFF,0,D3DDECLTYPE_UNUSED, 0,0,0}?
if(elems[i].Stream == 0xff )
break;
if( elems[i].Type == D3DDECLTYPE_FLOAT3 &&
elems[i].Usage == D3DDECLUSAGE_NORMAL &&
elems[i].UsageIndex == 0 )
{
hasNormals = true;
break;
}
}
// Step 3: Change vertex format to VertexPNT.
D3DVERTEXELEMENT9 elements[64];
UINT numElements = 0;
VertexPNT::Decl->GetDeclaration(elements, &numElements);
ID3DXMesh* temp = 0;
HR(meshSys->CloneMesh(D3DXMESH_SYSTEMMEM,
elements, gd3dDevice, &temp));
ReleaseCOM(meshSys);
meshSys = temp;
// Step 4: If the mesh did not have normals, generate them.
if( hasNormals == false)
HR(D3DXComputeNormals(meshSys, 0));
// Step 5: Optimize the mesh.
HR(meshSys->Optimize(D3DXMESH_MANAGED |
D3DXMESHOPT_COMPACT | D3DXMESHOPT_ATTRSORT | D3DXMESHOPT_VERTEXCACHE,
(DWORD*)adjBuffer->GetBufferPointer(), 0, 0, 0, meshOut));
ReleaseCOM(meshSys); // Done w/ system mesh.
ReleaseCOM(adjBuffer); // Done with buffer.
// Step 6: Extract the materials and load the textures.
if( mtrlBuffer != 0 && numMtrls != 0 )
{
D3DXMATERIAL* d3dxmtrls = (D3DXMATERIAL*)mtrlBuffer->GetBufferPointer();
for(DWORD i = 0; i < numMtrls; ++i)
{
// Save the ith material. Note that the MatD3D property does not have an ambient
// value set when its loaded, so just set it to the diffuse value.
Mtrl m;
m.ambient = d3dxmtrls[i].MatD3D.Diffuse;
m.diffuse = d3dxmtrls[i].MatD3D.Diffuse;
m.spec = d3dxmtrls[i].MatD3D.Specular;
m.specPower = d3dxmtrls[i].MatD3D.Power;
mtrls.push_back( m );
// Check if the ith material has an associative texture
if( d3dxmtrls[i].pTextureFilename != 0 )
{
// Yes, load the texture for the ith subset
IDirect3DTexture9* tex = 0;
char* texFN = d3dxmtrls[i].pTextureFilename;
HR(D3DXCreateTextureFromFile(gd3dDevice, texFN, &tex));
// Save the loaded texture
texs.push_back( tex );
}
else
{
// No texture for the ith subset
texs.push_back( 0 );
}
}
}
ReleaseCOM(mtrlBuffer); // done w/ buffer
}
WaterDemo::WaterDemo(HINSTANCE hInstance, std::string winCaption, D3DDEVTYPE devType, DWORD requestedVP)
: D3DApp(hInstance, winCaption, devType, requestedVP)
{
if(!checkDeviceCaps())
{
MessageBox(0, "checkDeviceCaps() Failed", 0, 0);
PostQuitMessage(0);
}
InitAllVertexDeclarations();
mLight.dirW = D3DXVECTOR3(0.0f, -2.0f, -1.0f);
D3DXVec3Normalize(&mLight.dirW, &mLight.dirW);
mLight.ambient = D3DXCOLOR(0.3f, 0.3f, 0.3f, 1.0f);
mLight.diffuse = D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f);
mLight.spec = D3DXCOLOR(0.7f, 0.7f, 0.7f, 1.0f);
mGfxStats = new GfxStats();
mSky = new Sky("grassenvmap1024.dds", 10000.0f);
D3DXMATRIX waterWorld;
D3DXMatrixTranslation(&waterWorld, 0.0f, 2.0f, 0.0f);
Mtrl waterMtrl;
waterMtrl.ambient = D3DXCOLOR(0.26f, 0.23f, 0.3f, 0.90f);
waterMtrl.diffuse = D3DXCOLOR(0.26f, 0.23f, 0.3f, 0.90f);
waterMtrl.spec = 1.0f*WHITE;
waterMtrl.specPower = 64.0f;
Water::InitInfo waterInitInfo;
waterInitInfo.dirLight = mLight;
waterInitInfo.mtrl = waterMtrl;
waterInitInfo.vertRows = 128;
waterInitInfo.vertCols = 128;
waterInitInfo.dx = 1.0f;
waterInitInfo.dz = 1.0f;
waterInitInfo.waveMapFilename0 = "wave0.dds";
waterInitInfo.waveMapFilename1 = "wave1.dds";
waterInitInfo.waveMapVelocity0 = D3DXVECTOR2(0.05f, 0.08f);
waterInitInfo.waveMapVelocity1 = D3DXVECTOR2(-0.02f, 0.1f);
waterInitInfo.texScale = 16.0f;
waterInitInfo.toWorld = waterWorld;
mWater = new Water(waterInitInfo);
mWater->setEnvMap(mSky->getEnvMap());
ID3DXMesh* tempMesh = 0;
LoadXFile("BasicColumnScene.x", &tempMesh, mSceneMtrls, mSceneTextures);
// Get the vertex declaration for the NMapVertex.
D3DVERTEXELEMENT9 elems[MAX_FVF_DECL_SIZE];
UINT numElems = 0;
HR(NMapVertex::Decl->GetDeclaration(elems, &numElems));
// Clone the mesh to the NMapVertex format.
ID3DXMesh* clonedTempMesh = 0;
HR(tempMesh->CloneMesh(D3DXMESH_MANAGED, elems, gd3dDevice, &clonedTempMesh));
// Now use D3DXComputeTangentFrameEx to build the TNB-basis for each vertex
// in the mesh.
HR(D3DXComputeTangentFrameEx(
clonedTempMesh, // Input mesh
D3DDECLUSAGE_TEXCOORD, 0, // Vertex element of input tex-coords.
D3DDECLUSAGE_BINORMAL, 0, // Vertex element to output binormal.
D3DDECLUSAGE_TANGENT, 0, // Vertex element to output tangent.
D3DDECLUSAGE_NORMAL, 0, // Vertex element to output normal.
0, // Options
0, // Adjacency
0.01f, 0.25f, 0.01f, // Thresholds for handling errors
&mSceneMesh, // Output mesh
0)); // Vertex Remapping
// Done with temps.
ReleaseCOM(tempMesh);
ReleaseCOM(clonedTempMesh);
D3DXMatrixIdentity(&mSceneWorld);
D3DXMatrixIdentity(&mSceneWorldInv);
HR(D3DXCreateTextureFromFile(gd3dDevice, "floor_nmap.bmp", &mSceneNormalMaps[0]));
HR(D3DXCreateTextureFromFile(gd3dDevice, "bricks_nmap.bmp", &mSceneNormalMaps[1]));
HR(D3DXCreateTextureFromFile(gd3dDevice, "whitetex.dds", &mWhiteTex));
// Initialize camera.
gCamera->pos().y = 7.0f;
gCamera->pos().z = -30.0f;
gCamera->setSpeed(10.0f);
mGfxStats->addVertices(mSceneMesh->GetNumVertices());
mGfxStats->addTriangles(mSceneMesh->GetNumFaces());
mGfxStats->addVertices(mWater->getNumVertices());
mGfxStats->addTriangles(mWater->getNumTriangles());
mGfxStats->addVertices(mSky->getNumVertices());
mGfxStats->addTriangles(mSky->getNumTriangles());
buildFX();
onResetDevice();
}
void XManager::loadXFile(IDirect3DDevice9* dev, const std::string& filename, ID3DXMesh** meshOut, std::vector<Material>* mtrls, std::vector<IDirect3DTexture9*>* texs) {
// Step 1: Load the .x file from file into a system memory mesh.
ID3DXMesh* meshSys = 0;
ID3DXBuffer* adjBuffer = 0;
ID3DXBuffer* mtrlBuffer = 0;
DWORD numMtrls = 0;
HR(D3DXLoadMeshFromX(filename.c_str(), D3DXMESH_SYSTEMMEM, dev,
&adjBuffer, &mtrlBuffer, 0, &numMtrls, &meshSys));
// Step 2: Find out if the mesh already has normal info?
D3DVERTEXELEMENT9 elems[MAX_FVF_DECL_SIZE];
HR(meshSys->GetDeclaration(elems));
bool hasNormals = false;
D3DVERTEXELEMENT9 term = D3DDECL_END();
for(int i = 0; i < MAX_FVF_DECL_SIZE; ++i)
{
// Did we reach D3DDECL_END() {0xFF,0,D3DDECLTYPE_UNUSED, 0,0,0}?
if(elems[i].Stream == 0xff )
break;
if( elems[i].Type == D3DDECLTYPE_FLOAT3 &&
elems[i].Usage == D3DDECLUSAGE_NORMAL &&
elems[i].UsageIndex == 0 )
{
hasNormals = true;
break;
}
}
// Step 3: Change vertex format to CustomVertex3NormalUV
D3DVERTEXELEMENT9 elements[64];
UINT numElements = 0;
CustomVertex3NormalUV::decl->GetDeclaration(elements, &numElements);
ID3DXMesh* temp = 0;
HR(meshSys->CloneMesh(D3DXMESH_SYSTEMMEM,
elements, dev, &temp));
SAFERELEASECOM(meshSys);
meshSys = temp;
// Step 4: If the mesh did not have normals, generate them.
if( hasNormals == false)
HR(D3DXComputeNormals(meshSys, 0));
// Step 5: Optimize the mesh.
HR(meshSys->Optimize(D3DXMESH_MANAGED |
D3DXMESHOPT_COMPACT | D3DXMESHOPT_ATTRSORT | D3DXMESHOPT_VERTEXCACHE,
(DWORD*)adjBuffer->GetBufferPointer(), 0, 0, 0, meshOut));
SAFERELEASECOM(meshSys); // Done w/ system mesh.
SAFERELEASECOM(adjBuffer); // Done with buffer.
// Step 6: Extract the materials and load the textures.
if( mtrlBuffer != 0 && numMtrls != 0 )
{
D3DXMATERIAL* d3dxmtrls = (D3DXMATERIAL*)mtrlBuffer->GetBufferPointer();
for(DWORD i = 0; i < numMtrls; ++i)
{
// Save the ith material. Note that the MatD3D property does not have an ambient
// value set when its loaded, so just set it to the diffuse value.
Material m;
m.ambient = d3dxmtrls[i].MatD3D.Diffuse;
m.diffuse = d3dxmtrls[i].MatD3D.Diffuse;
m.spec = d3dxmtrls[i].MatD3D.Specular;
m.specPower = d3dxmtrls[i].MatD3D.Power;
mtrls->push_back( m );
// Check if the ith material has an associative texture
if( d3dxmtrls[i].pTextureFilename != 0 )
{
IDirect3DTexture9* tex = 0;
std::string s(d3dxmtrls[i].pTextureFilename);
const char folder[] = "./texture/";
unsigned int pos = s.find_last_of('\/');
std::string newFileName(folder);
// std::string::npos gets returned if no / was found
if(pos != std::string::npos) {
//std::string sub = s.substr(pos,s.size());
if(strcmp(s.substr(pos+1,s.size()).c_str(),"Watcher.tga") == 0) {
newFileName.append("Watcher_Black.tga");
}
else {
newFileName.append(s.substr(pos+1,s.size()));
}
}
else {
newFileName.append(s);
}
// Save the loaded texture
HR(D3DXCreateTextureFromFile(dev, newFileName.c_str(), &tex));
texs->push_back( tex );
}
else
{
//--------------------------------------------------------------------------------------
HRESULT CLoaderXFile::Load( WCHAR* szFileName, FRAME_TRANSFORM_TYPE requestedBHT )
{
HRESULT hr = E_FAIL;
ID3DXBuffer *pMat = NULL;
ID3DXMesh *pRawMesh = NULL;
ID3DXMesh *pMesh = NULL;
DWORD cMat;
IDirect3DDevice9* pDev9 = NULL;
DWORD* pAdjBuffer = NULL;
// Create a d3d9 object
IDirect3D9* pD3D9 = Direct3DCreate9( D3D_SDK_VERSION );
if( pD3D9 == NULL )
return E_FAIL;
D3DPRESENT_PARAMETERS pp;
pp.BackBufferWidth = 320;
pp.BackBufferHeight = 240;
pp.BackBufferFormat = D3DFMT_X8R8G8B8;
pp.BackBufferCount = 1;
pp.MultiSampleType = D3DMULTISAMPLE_NONE;
pp.MultiSampleQuality = 0;
pp.SwapEffect = D3DSWAPEFFECT_DISCARD;
pp.hDeviceWindow = GetShellWindow();
pp.Windowed = true;
pp.Flags = 0;
pp.FullScreen_RefreshRateInHz = 0;
pp.PresentationInterval = D3DPRESENT_INTERVAL_DEFAULT;
pp.EnableAutoDepthStencil = false;
hr = pD3D9->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_NULLREF, NULL, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &pp, &pDev9 );
if(FAILED(hr))
goto Error;
if( szFileName )
{
hr = D3DXLoadMeshFromX( szFileName, 0, pDev9, NULL, &pMat, NULL, &cMat, &pRawMesh );
if(FAILED(hr))
goto Error;
}
D3DVERTEXELEMENT9 declTanBi[] =
{
{ 0, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0 },
{ 0, 12, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_NORMAL, 0 },
{ 0, 24, D3DDECLTYPE_FLOAT2, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 0 },
{ 0, 32, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TANGENT, 0 },
{ 0, 44, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_BINORMAL, 0 },
D3DDECL_END()
};
D3DVERTEXELEMENT9* pdecl = declTanBi;
// Make a clone with the desired vertex format.
if( SUCCEEDED( pRawMesh->CloneMesh( D3DXMESH_32BIT | D3DXMESH_DYNAMIC, pdecl, pDev9, &m_pMesh ) ) )
{
// Optimize
pAdjBuffer = new DWORD[ 3*m_pMesh->GetNumFaces() ];
if( !pAdjBuffer )
{
hr = E_OUTOFMEMORY;
goto Error;
}
m_pMesh->GenerateAdjacency( 0.001f, pAdjBuffer );
m_pMesh->OptimizeInplace( D3DXMESHOPT_ATTRSORT,
pAdjBuffer,
NULL,
NULL,
NULL );
// Attributes
m_pMesh->GetAttributeTable( NULL, &m_dwNumAttr );
if( m_dwNumAttr > 0 )
{
m_pAttr = new D3DXATTRIBUTERANGE[m_dwNumAttr];
m_pMesh->GetAttributeTable( m_pAttr, &m_dwNumAttr );
}
// Materials
m_dwNumMaterials = cMat;
if( m_dwNumMaterials > 0 )
{
D3DXMATERIAL* pMaterialBuffer = (D3DXMATERIAL*)pMat->GetBufferPointer();
m_pMats = new D3DXMATERIAL[ m_dwNumMaterials ];
if( !m_pMats )
{
hr = E_OUTOFMEMORY;
goto Error;
}
for( DWORD m=0; m<m_dwNumMaterials; m++ )
{
CopyMemory( &m_pMats[m], &pMaterialBuffer[m], sizeof(D3DXMATERIAL) );
}
}
// Create the intermediate mesh
hr = CreateIntermediateMesh( declTanBi, 6 );
if(FAILED(hr))
goto Error;
}
hr = S_OK;
Error:
SAFE_RELEASE( pMat );
SAFE_RELEASE( pRawMesh );
SAFE_RELEASE( pMesh );
SAFE_RELEASE( pDev9 );
SAFE_RELEASE( pD3D9 );
SAFE_DELETE_ARRAY( pAdjBuffer );
return hr;
}
void SphereCylDemo::genCylTexCoords(AXIS axis)
{
// D3DXCreate* functions generate vertices with position
// and normal data. But for texturing, we also need
// tex-coords. So clone the mesh to change the vertex
// format to a format with tex-coords.
D3DVERTEXELEMENT9 elements[64];
UINT numElements = 0;
VertexPNT::Decl->GetDeclaration(elements, &numElements);
ID3DXMesh* temp = 0;
HR(mCylinder->CloneMesh(D3DXMESH_SYSTEMMEM,
elements, gd3dDevice, &temp));
ReleaseCOM(mCylinder);
// Now generate texture coordinates for each vertex.
VertexPNT* vertices = 0;
HR(temp->LockVertexBuffer(0, (void**)&vertices));
// We need to get the height of the cylinder we are projecting the
// vertices onto. That height depends on which axis the client has
// specified that the cylinder lies on. The height is determined by
// finding the height of the bounding cylinder on the specified axis.
D3DXVECTOR3 maxPoint(-FLT_MAX, -FLT_MAX, -FLT_MAX);
D3DXVECTOR3 minPoint(FLT_MAX, FLT_MAX, FLT_MAX);
for(UINT i = 0; i < temp->GetNumVertices(); ++i)
{
D3DXVec3Maximize(&maxPoint, &maxPoint, &vertices[i].pos);
D3DXVec3Minimize(&minPoint, &minPoint, &vertices[i].pos);
}
float a = 0.0f;
float b = 0.0f;
float h = 0.0f;
switch( axis )
{
case X_AXIS:
a = minPoint.x;
b = maxPoint.x;
h = b-a;
break;
case Y_AXIS:
a = minPoint.y;
b = maxPoint.y;
h = b-a;
break;
case Z_AXIS:
a = minPoint.z;
b = maxPoint.z;
h = b-a;
break;
}
// Iterate over each vertex and compute its texture coordinate.
for(UINT i = 0; i < temp->GetNumVertices(); ++i)
{
// Get the coordinates along the axes orthogonal to the
// axis the cylinder is aligned with.
float x = 0.0f;
float y = 0.0f;
float z = 0.0f;
switch( axis )
{
case X_AXIS:
x = vertices[i].pos.y;
z = vertices[i].pos.z;
y = vertices[i].pos.x;
break;
case Y_AXIS:
x = vertices[i].pos.x;
z = vertices[i].pos.z;
y = vertices[i].pos.y;
break;
case Z_AXIS:
x = vertices[i].pos.x;
z = vertices[i].pos.y;
y = vertices[i].pos.z;
break;
}
// Convert to cylindrical coordinates.
float theta = atan2f(z, x);
float y2 = y - b; // Transform [a, b]-->[-h, 0]
// Transform theta from [0, 2*pi] to [0, 1] range and
// transform y2 from [-h, 0] to [0, 1].
float u = theta / (2.0f*D3DX_PI);
float v = y2 / -h;
// Save texture coordinates.
vertices[i].tex0.x = u;
vertices[i].tex0.y = v;
}
HR(temp->UnlockVertexBuffer());
// Clone back to a hardware mesh.
HR(temp->CloneMesh(D3DXMESH_MANAGED | D3DXMESH_WRITEONLY,
elements, gd3dDevice, &mCylinder));
ReleaseCOM(temp);
}
