Method CreatePrimitiveFromCMF

trinity/Tr2GrannyPrimitiveSet.cpp:256–361

}

void Tr2GrannyPrimitiveSet::CreatePrimitiveFromCMF()
{
	if( !m_grannyRes )
	{
		return;
	}

	const cmf::Data* cmfData = m_grannyRes->GetCMFData();

	if( !cmfData )
	{
		CCP_LOGERR( "Tr2GrannyLineSet::CreatePrimitive: '%s' not found or not a valid CMF file", m_grannyResPath.c_str() );
		return;
	}

	uint32_t numVertices = 0;
	uint32_t numIndices = 0;
	std::vector<int32_t> meshIndices;
	int32_t pickingIndex = -1;

	// Sorting the meshes so the picking mesh is processed last
	for( int32_t meshIx = 0; meshIx < cmfData->meshes.size(); meshIx++ )
	{
		auto mesh = cmfData->meshes[meshIx];

		uint32_t meshIndexCount = cmf::GetStreamElementCount( mesh.lods[0].ib );
		uint32_t meshTriangleCount = meshIndexCount / 3;

		if( cmf::ToStdStringView( mesh.name ) == g_pickingMeshName )
		{
			m_pickingPrimitiveCount = meshTriangleCount;
			pickingIndex = meshIx;
		}
		else
		{
			meshIndices.push_back( meshIx );
			numIndices += meshIndexCount;
		}
	}

	if( pickingIndex > -1 )
	{
		m_pickingIndexOffset = numIndices;
		meshIndices.push_back( pickingIndex );
	}

	for( int32_t meshIx = 0; meshIx < cmfData->meshes.size(); meshIx++ )
	{
		auto mesh = cmfData->meshes[meshIndices[meshIx]];

		uint32_t meshIndexCount = cmf::GetStreamElementCount( mesh.lods[0].ib );
		uint32_t meshVertexCount = cmf::GetStreamElementCount( mesh.lods[0].vb );
		uint32_t meshTriangleCount = meshIndexCount / 3;
		m_primitiveCount += meshTriangleCount;

		m_points.reserve( m_points.size() + meshVertexCount );
		m_triangleIndices.reserve( m_triangleIndices.size() + meshIndexCount );
		m_lineIndices.reserve( ( m_triangleIndices.size() + meshIndexCount ) * 2 );