Hi guys,
i have been working on a custom 3d model file format recently, however when i render the models with directx using ID3DXMesh, the textures appears to be in the wrong place as show below.
i am pretty sure that i have exported the correct vertex information becos when i tried rendering the models with my previous opengl based engine, everything seems fine.
the below code shows how i load the vertex information to ID3DXMesh
void CMGS::ConvertToD3DMesh()
{
int i,j;
D3DVERTEXELEMENT9 decl[] =
{
{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, 2},
{0, 44, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_BINORMAL, 3},
D3DDECL_END()
};
//create the vertex declaration
g_d3dDevice->CreateVertexDeclaration(decl, &m_decl);
if(FAILED(D3DXCreateMesh(m_totalFaceCount,m_totalVertexCount,D3DXMESH_MANAGED | D3DXMESH_32BIT,decl,g_d3dDevice,&m_pMesh)))
ErrorMsg("Failed to ceate d3d mesh");
XYZ_ST_TBN_VERTEX *tempVertices = NULL;
m_pMesh->LockVertexBuffer(0, (void**)&tempVertices);
for(i = 0; i < pMeshes.size(); ++i)
{
for(j = 0; j < pMeshes.numVertices; ++j)
{
tempVertices->vertex = pMeshes.pVertices[j].vertex;
tempVertices->normal = pMeshes.pVertices[j].normal;
tempVertices->texcoord = pMeshes.pVertices[j].texCoord;
tempVertices++;
}
}
m_pMesh->UnlockVertexBuffer();
DWORD *tempIndices = NULL;
m_pMesh->LockIndexBuffer(0, (void**)&tempIndices);
for(i = 0; i < m_totalFaceCount*3; ++i)
{
*tempIndices = i;
tempIndices++;
}
m_pMesh->UnlockIndexBuffer();
DWORD *tempAttrib = NULL;
m_pMesh->LockAttributeBuffer(0, &tempAttrib);
//sort mesh by material
for(i = 0; i < pMeshes.size(); ++i)
{
for(j = 0; j < pMeshes.numFaces; ++j)
{
*tempAttrib = pMeshes.matID;
tempAttrib++;
}
}
m_pMesh->UnlockAttributeBuffer();
DWORD *pAdjacency = new DWORD[m_pMesh->GetNumFaces()*3];
m_pMesh->GenerateAdjacency(1e-6f, pAdjacency);
if(FAILED(D3DXComputeNormals(m_pMesh,pAdjacency)))
ErrorMsg("Compute normals for MGS failed");
if(FAILED(D3DXComputeTangent(m_pMesh,0,2,3,1,pAdjacency)))
ErrorMsg("Compute tangents for MGS failed");
//D3DXMESHOPT_ATTRSORT
if(FAILED(m_pMesh->OptimizeInplace(D3DXMESHOPT_VERTEXCACHE, pAdjacency, NULL, NULL, NULL)))
ErrorMsg("OptimizeInplace for MGS failed");
SAFE_DELETE(pAdjacency);
}
I have been stuck with this problem for a week now....[help]any help would be deeply appreciated.
