Blender is a professional free and open source 3D computer graphics software. Interpolation surface is only vertical, because interpolation surface is two-dimensional.

Blender is a professional free and open source three-dimensional computer graphics software. Blender is free software and maintained and updated by Blender Foundation. Blender can run on different platforms and take up little space after installation. Although it often doesn't support the release of documentation or samples, it has extremely rich functions, and most of them are high-end module-building software. In Blender, objects and data are separated, which makes it possible to mold quickly.