@oXYnary, The Packer is, same as the UVW Unwrap packer, a bounding rectangle packer, so it is not meant to be used to pack complex organic shapes. Regarding performance, I believe it is very efficient. Below are some test results on an average PC: Texture Size = 1024x1024 Pixel Padding = 4 65K Tris, 500 Shells - 895ms. 5K…