Is Face Planar Node
The Is Face Planar node outputs whether every triangle of a quads or is on the same plane as all of the others, in other words, if they have the same normal.
For example, a non-planar face can be created by moving a single vertex in a face but not the others. Triangles will always be planar.
The distance a point can be from the surface before the face is no longer considered planar.
这个节点没有属性。
Whether each mesh face is planar.