脉络分支生长动画Houdini教程(含工程) Kitbash Vein Growth Tutorial在Houdini中制作程序化的物体生长动画，类似于血管经脉等，包含Houdini工程文件This tutorial shows you how to create a procedural vein, that is composed of small segments that you drawn by hand.

This way the overall look of the vein is art-directable.