Method Initialize

Shadows/SampleFramework11/Model.cpp:82–147

}

void Mesh::Initialize(ID3D11Device* device, SDKMesh& sdkMesh, uint32 meshIdx, bool generateTangents)
{
    const SDKMESH_MESH& sdkMeshData = *sdkMesh.GetMesh(meshIdx);

    uint32 indexSize = 2;
    indexType = Mesh::Index16Bit;
    if(sdkMesh.GetIndexType(meshIdx) == IT_32BIT)
    {
        indexSize = 4;
        indexType = Mesh::Index32Bit;
    }

    vertexStride = sdkMesh.GetVertexStride(meshIdx, 0);
    numVertices = static_cast<uint32>(sdkMesh.GetNumVertices(meshIdx, 0));
    numIndices = static_cast<uint32>(sdkMesh.GetNumIndices(meshIdx));
    const uint32 vbIdx = sdkMeshData.VertexBuffers[0];
    const uint32 ibIdx = sdkMeshData.IndexBuffer;

    CreateInputElements(sdkMesh.VBElements(0));

    vertices.resize(vertexStride * numVertices, 0);
    memcpy(vertices.data(), sdkMesh.GetRawVerticesAt(vbIdx), vertexStride * numVertices);

    indices.resize(indexSize * numIndices, 0);
    memcpy(indices.data(), sdkMesh.GetRawIndicesAt(ibIdx), indexSize * numIndices);

    name = sdkMeshData.Name;

    if(generateTangents)
        GenerateTangentFrame();

    D3D11_BUFFER_DESC bufferDesc;
    bufferDesc.Usage = D3D11_USAGE_IMMUTABLE;
    bufferDesc.ByteWidth = vertexStride * numVertices;
    bufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
    bufferDesc.CPUAccessFlags = 0;
    bufferDesc.MiscFlags = 0;
    bufferDesc.StructureByteStride = 0;

    D3D11_SUBRESOURCE_DATA initData;
    initData.pSysMem = vertices.data();
    initData.SysMemPitch = 0;
    initData.SysMemSlicePitch = 0;
    DXCall(device->CreateBuffer(&bufferDesc, &initData, &vertexBuffer));

    bufferDesc.ByteWidth = indexSize * numIndices;
    bufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
    bufferDesc.MiscFlags = 0;
    bufferDesc.StructureByteStride = 0;

    initData.pSysMem = indices.data();
    DXCall(device->CreateBuffer(&bufferDesc, &initData, &indexBuffer));

    const uint32 numSubsets = sdkMesh.GetNumSubsets(meshIdx);
    meshParts.resize(numSubsets);
    for(uint32 i = 0; i < numSubsets; ++i)
    {
        const SDKMESH_SUBSET& subset = *sdkMesh.GetSubset(meshIdx, i);