Method DownloadBuffer

Source/Engine/Graphics/Models/Mesh.cpp:455–524

};

MArray* Mesh::DownloadBuffer(bool forceGpu, MTypeObject* resultType, int32 typeI)
{
    // [Deprecated in v1.10]
    ScopeLock lock(GetModelBase()->Locker);

    // Get vertex buffers data from the mesh (CPU or GPU)
    MeshAccessor accessor;
    MeshBufferType bufferTypes[1] = { MeshBufferType::Vertex0 };
    switch ((InternalBufferType)typeI)
    {
    case InternalBufferType::VB1:
        bufferTypes[0] = MeshBufferType::Vertex1;
        break;
    case InternalBufferType::VB2:
        bufferTypes[0] = MeshBufferType::Vertex2;
        break;
    }
    if (accessor.LoadMesh(this, forceGpu, ToSpan(bufferTypes, 1)))
        return nullptr;
    auto positionStream = accessor.Position();
    auto texCoordStream = accessor.TexCoord();
    auto lightmapUVsStream = accessor.TexCoord(1);
    auto normalStream = accessor.Normal();
    auto tangentStream = accessor.Tangent();
    auto colorStream = accessor.Color();
    auto count = GetVertexCount();

    // Convert into managed array
    MArray* result = MCore::Array::New(MCore::Type::GetClass(INTERNAL_TYPE_OBJECT_GET(resultType)), count);
    void* managedArrayPtr = MCore::Array::GetAddress(result);
    switch ((InternalBufferType)typeI)
    {
PRAGMA_DISABLE_DEPRECATION_WARNINGS
    case InternalBufferType::VB0:
        CHECK_RETURN(positionStream.IsValid(), nullptr);
        for (int32 i = 0; i < count; i++)
        {
            auto& dst = ((VB0ElementType*)managedArrayPtr)[i];
            dst.Position = positionStream.GetFloat3(i);
        }
        break;
    case InternalBufferType::VB1:
        for (int32 i = 0; i < count; i++)
        {
            auto& dst = ((VB1ElementType*)managedArrayPtr)[i];
            if (texCoordStream.IsValid())
                dst.TexCoord = texCoordStream.GetFloat2(i);
            if (normalStream.IsValid())
                dst.Normal = normalStream.GetFloat3(i);
            if (tangentStream.IsValid())
                dst.Tangent = tangentStream.GetFloat4(i);
            if (lightmapUVsStream.IsValid())
                dst.LightmapUVs = lightmapUVsStream.GetFloat2(i);
        }
        break;
    case InternalBufferType::VB2:
        if (colorStream.IsValid())
        {