Method ExtractAudioGeometry

trinity/Resources/TriGeometryRes.cpp:2427–2465

}

void TriGeometryRes::ExtractAudioGeometry( TriGeometryResMeshData* mesh, granny_mesh* grannyMesh )
{
	auto audioGeometry = std::make_unique<AudioGeometryResData>();

	unsigned int positionOffset;
	Tr2VertexDefinition::DataType positionType;
	GetVertexPositionOffsetAndType( grannyMesh, positionOffset, positionType );

	const int vertexCount = grannyMesh->PrimaryVertexData->VertexCount;
	Tr2VertexDefinition audioVertexDef = BuildFromGrannyVertexDecl( grannyMesh->PrimaryVertexData->VertexType );
	const unsigned int bytesPerVertex = audioVertexDef.m_nextOffset[0];

	// Read original indices from granny mesh
	int indexCount = grannyMesh->PrimaryTopology->Index16Count;
	if( indexCount == 0 )
	{
		indexCount = grannyMesh->PrimaryTopology->IndexCount;
	}

	if( indexCount == 0 || indexCount % 3 != 0 )
	{
		return;
	}


	audioGeometry->m_vertices.resize( vertexCount );
	for( int v = 0; v < vertexCount; ++v )
	{
		GetMeshVertexPosition( grannyMesh, static_cast<uint32_t>( v ), audioGeometry->m_vertices[v], bytesPerVertex, positionOffset, positionType );
	}

	audioGeometry->m_indices.resize( indexCount );
	GrannyCopyMeshIndices( grannyMesh, sizeof( uint32_t ), audioGeometry->m_indices.data() );

	audioGeometry->m_minBounds = mesh->m_minBounds;
	audioGeometry->m_maxBounds = mesh->m_maxBounds;

	mesh->m_audioGeometry = std::move( audioGeometry );
}
#endif

Be::Result<std::string> TriGeometryRes::SaveMesh( const char* filename, uint32_t meshIndex ) const