使い方
参考：
Pointiness + ColorRamp | MITSUDA Tetsuo
Pointiness | Blender Manual [Official]
D1086 Cycles: implement pointiness geometry attribute | Blender Developer [Official]
attr_create_pointiness – blender_mesh.cpp at v2.92.0 – GitHub
The new pointiness attribute is nice, but it could be so much more – Blender Artists Community
the Pointiness value, dissected – Blender Artists Community
Blurring/Feathering a Procedural Pointiness Mask – Blender Stack Exchange
How to normalize the color values of a shader (Pointiness)? – Blender Stack Exchange
Blurring/Feathering a Procedural Pointiness Mask – Blender Stack Exchange
How to color object based on roughness? – Blender Stack Exchange
can’t get pointiness to work – Blender Stack Exchange