01-03-2021, 12:42 PM
Definition of the displacement direction (axis), computed on a per-single-border-face basis:
It’s the intersecting line between
- the surface plane of the border face itself
- and if you think of the border edge as being also a surface normal of a plane (just an imaginary help plane)
Where these two planes intersect, this is the needed axis of displacement.
Actually the same like extruding an edge, only in this case adding subdivisions and extruding by noise values.
And for vertices of adjacent border edges, which will be computed twice (once with each adjacent face), just take the average value.
It’s the intersecting line between
- the surface plane of the border face itself
- and if you think of the border edge as being also a surface normal of a plane (just an imaginary help plane)
Where these two planes intersect, this is the needed axis of displacement.
Actually the same like extruding an edge, only in this case adding subdivisions and extruding by noise values.
And for vertices of adjacent border edges, which will be computed twice (once with each adjacent face), just take the average value.