tyFaceExtrude Modifier

The tyFaceExtrude modifier allows you to procedurally extrude and scale mesh faces, using vertex soft selection values to control the extrusion/scale amounts.


Operate on

  • Triangles/Polygons: controls which mesh elements will be extruded.

Polygons are groups of faces whose adjacent edges are invisible.

  • Use selection: controls whether extrusion/scale amounts will be based on the mesh’s current vertex selection.
Coverage
  • Window: all vertices of a face must be selected in order for the face to be extruded.

  • Crossing at least one vertex of the face must be selected in order for the face to be extruded.

  • Select affected faces: when enabled, affected faces (faces that are extruded or scaled) will be selected.

Face Extrude

  • Amount: the amount to extrude applicable faces.

  • Variation %: the per-particle percentage of variation to apply.
  • Along face normals: extruded face vertices will be moved along the direction of the extruded face normal.

  • Along face verts: extruded face vertices will be moved along the direction of the extruded face vertex normals.

  • Selection affect curve: soft selection values will be interpolated along this curve.

  • Relative to area: the length of the extrusion will be relative to the area of the face.

  • Area: the target face area.

  • Invert: inverts the effect of the face area multiplier.

Selection Weight
  • Average: the average selection weight of a face’s vertices will be used to control the extrude amount.

  • Per-Vertex: the extrude amount of each face’s vertex will be individually controlled by the vertex’s selection weight.

Extrusion Segments
  • Count: the number of extra segments to add to the height of each extrusion.

  • Jitter %: the amount of random jitter to displace each segment by, relative to its neighboring segments.

Face Scale

  • Scale %: the amount to scale extruded faces, tapering the extrusion up to its maximum height.

  • Variation %: the per-particle percentage of variation to apply.
  • Segment interpolation curve: controls how each segment along the extrusion’s height will conform to the linear taper towards the top of the extrusion (the taper controlled by the “scale %” value).

  • Selection affect curve: soft selection values will be interpolated along this curve.

  • Relative to area: the amount to scale will be relative to the area of the face.

  • Area: the target face area.

  • Invert: inverts the effect of the face area multiplier.

Selection Weight
  • Average: the average selection weight of a face’s vertices will be used to control the scale amount.

  • Per-Vertex: the scale amount of each face’s vertex will be individually controlled by the vertex’s selection weight.


Uniqueness

  • Seed: the seed value for all varied parameters.