Geometry Utilities - Arnold for Houdini
Important:
These nodes may change or be replaced at any time.
At the Geometry level, there are five Arnold utility nodes that are used within HtoA OTLs.
Asstoc
Takes a .ass file and looks for an associated .asstoc file. If found, it will read the .asstoc and generate 2 points, an upper and a lower. These can be passed to a Bounds node to generate a bounding box.
VDB Bounds
Reads a VDB file and a Grid and generates two points, an upper and a lower. These can be passed to a Bounds node to generate a bounding box.
Empty Error
Evaluates upstream, and if an error is found, it will be replaced with a null.
Switch
Switches between input #2 and #3 according to the emptiness of input #1.
Edges
Reads polygon geometry and replaces every edge with a line primitive.