8

Tri Patch 983
Lengt h—
Sets the patch length.
Width—Sets the patch width.
Cr e ate —Creates a patch based on the XYZ, Length,
and Width values.
Parameters rollout
Length, Width—Sets the g rid dimensions in current
units.
Length, W idth S egments—Determines the number
of facets along the length and width of the grid.
Default=1.
The density of a Quad Patch rises sharply as
you inc reas e the segments. A Quad Patch of
two segments on a side contains 288 faces. The
maximum is 100 segments. High segment va lues
can slow per formance.
Genera te M appi ng Coordina tes—Creates map
coordinates for apply ing mapped materials.
Default=off.
Tri Patch
Createpanel>Geometry>PatchGrids>TriPatch
Create menu > Patch Grids > Tri Patch
Tri Patch creates a flat gr id with 72 tr iangular
faces. The face count remains at 72, regardless of
its size. The faces b e come larger to fill the area as
you increase the size of the grid.
Tri Patch
Procedures
To create a Tri Pa tch:
1.
On the Create panel > Geometry > Patch Grids
>ObjectTyperollout,clickTriPatch.
2. Drag over any viewport to create the patch.
To edit a Tri Patch:
1.
Select a Tr i Patch.
2. On the Modify panel, right-click TriPatch in
stack v iew, and choose Editable Patch.
The Tri Patch collapses to an Ed itable Patch.
3. In the Editable Pat ch Selection rollout, click
Ve r t e x .
4. In any viewport, select a vertex on the patch
object and m ove the vertex to change the
surface topology.
You can animate vert ices and vectors w ith an
Editable Patch modifier.