Method InitBox

SampleFramework12/v1.00/Graphics/Model.cpp:207–315

Initializes the mesh as a box

// Initializes the mesh as a box
void Mesh::InitBox(const Float3& dimensions, const Float3& position,
                   const Quaternion& orientation, uint32 materialIdx,
                   MeshVertex* dstVertices, uint16* dstIndices)
{
    uint64 vIdx = 0;

    // Top
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, 1.0f, 1.0f), Float3(0.0f, 1.0f, 0.0f), Float2(0.0f, 0.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, 0.0f, -1.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, 1.0f, 1.0f), Float3(0.0f, 1.0f, 0.0f), Float2(1.0f, 0.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, 0.0f, -1.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, 1.0f, -1.0f), Float3(0.0f, 1.0f, 0.0f), Float2(1.0f, 1.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, 0.0f, -1.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, 1.0f, -1.0f), Float3(0.0f, 1.0f, 0.0f), Float2(0.0f, 1.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, 0.0f, -1.0f));

    // Bottom
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, -1.0f, -1.0f), Float3(0.0f, -1.0f, 0.0f), Float2(0.0f, 0.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, 0.0f, 1.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, -1.0f, -1.0f), Float3(0.0f, -1.0f, 0.0f), Float2(1.0f, 0.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, 0.0f, 1.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, -1.0f, 1.0f), Float3(0.0f, -1.0f, 0.0f), Float2(1.0f, 1.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, 0.0f, 1.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, -1.0f, 1.0f), Float3(0.0f, -1.0f, 0.0f), Float2(0.0f, 1.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, 0.0f, 1.0f));

    // Front
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, 1.0f, -1.0f), Float3(0.0f, 0.0f, -1.0f), Float2(0.0f, 0.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, 1.0f, -1.0f), Float3(0.0f, 0.0f, -1.0f), Float2(1.0f, 0.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, -1.0f, -1.0f), Float3(0.0f, 0.0f, -1.0f), Float2(1.0f, 1.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, -1.0f, -1.0f), Float3(0.0f, 0.0f, -1.0f), Float2(0.0f, 1.0f), Float3(1.0f, 0.0f, 0.0f), Float3(0.0f, -1.0f, 0.0f));

    // Back
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, 1.0f, 1.0f), Float3(0.0f, 0.0f, 1.0f), Float2(0.0f, 0.0f), Float3(-1.0f, 0.0f, 0.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, 1.0f, 1.0f), Float3(0.0f, 0.0f, 1.0f), Float2(1.0f, 0.0f), Float3(-1.0f, 0.0f, 0.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, -1.0f, 1.0f), Float3(0.0f, 0.0f, 1.0f), Float2(1.0f, 1.0f), Float3(-1.0f, 0.0f, 0.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, -1.0f, 1.0f), Float3(0.0f, 0.0f, 1.0f), Float2(0.0f, 1.0f), Float3(-1.0f, 0.0f, 0.0f), Float3(0.0f, -1.0f, 0.0f));

    // Left
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, 1.0f, 1.0f), Float3(-1.0f, 0.0f, 0.0f), Float2(0.0f, 0.0f), Float3(0.0f, 0.0f, -1.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, 1.0f, -1.0f), Float3(-1.0f, 0.0f, 0.0f), Float2(1.0f, 0.0f), Float3(0.0f, 0.0f, -1.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, -1.0f, -1.0f), Float3(-1.0f, 0.0f, 0.0f), Float2(1.0f, 1.0f), Float3(0.0f, 0.0f, -1.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(-1.0f, -1.0f, 1.0f), Float3(-1.0f, 0.0f, 0.0f), Float2(0.0f, 1.0f), Float3(0.0f, 0.0f, -1.0f), Float3(0.0f, -1.0f, 0.0f));

    // Right
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, 1.0f, -1.0f), Float3(1.0f, 0.0f, 0.0f), Float2(0.0f, 0.0f), Float3(0.0f, 0.0f, 1.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, 1.0f, 1.0f), Float3(1.0f, 0.0f, 0.0f), Float2(1.0f, 0.0f), Float3(0.0f, 0.0f, 1.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, -1.0f, 1.0f), Float3(1.0f, 0.0f, 0.0f), Float2(1.0f, 1.0f), Float3(0.0f, 0.0f, 1.0f), Float3(0.0f, -1.0f, 0.0f));
    dstVertices[vIdx++] = MeshVertex(Float3(1.0f, -1.0f, -1.0f), Float3(1.0f, 0.0f, 0.0f), Float2(0.0f, 1.0f), Float3(0.0f, 0.0f, 1.0f), Float3(0.0f, -1.0f, 0.0f));

    for(uint64 i = 0; i < NumBoxVerts; ++i)
        dstVertices[i].Transform(position, dimensions * 0.5f, orientation);

    uint64 iIdx = 0;

    // Top
    dstIndices[iIdx++] = 0;
    dstIndices[iIdx++] = 1;
    dstIndices[iIdx++] = 2;
    dstIndices[iIdx++] = 2;
    dstIndices[iIdx++] = 3;
    dstIndices[iIdx++] = 0;

    // Bottom
    dstIndices[iIdx++] = 4 + 0;
    dstIndices[iIdx++] = 4 + 1;