Extrude POP
Summary
The Extrude POP is a simple operator that gives apparent "thickness" to triangles or quads. It copies the triangle or quad at a specifiable separation (Distance), optionally shrinks it to give a taper (Inset), and adds quads for the sides. You must pass it to a Normal POP to render it with faceted shading.
Parameters - Extrude Page
Group
group - If there are input groups, specifying a group name in this field will cause this POP to act only upon the group specified.
Distance
distance - Sets the distance to extrude
Use Distance Attribute
usedistanceattr - Enables extrusion distance to be driven by an attribute.
Distance Attribute
distanceattr - The attribute to use to set the extrude distance.
Inset
inset - Applies a scaling factor to extruded geometry.
Keep Faces Connected
keepconnected - When on, faces are extruded as a group instead of individually. Useful in particular when extruding an input group.
Max Primitives per Point
maxprimsperpoint - Used to allocate temporary storage when Keep Faces Connected is on, it should be set to the maximum number a primitives a point can be a part of in the input geometry.
Copy Topology Info Back to CPU
cpureadback - Enable copying the point count and topology information held on the GPU to the CPU.
Parameters - Common Page
Bypass
bypass - Pass through the first input to the output unchanged.
Free Extra GPU Memory
freeextragpumem - Free memory that has accumulated when output memory has grown and shrunk.
Delete Input Attributes
delinputattrs - Only output which attributes you specify in this POP - helps isolate attributes into a separate branch.
Operator Inputs
- Input 0: -
Info CHOP Channels
Extra Information for the Extrude POP can be accessed via an Info CHOP.
Common POP Info Channels
Common Operator Info Channels
- total_cooks - Number of times the operator has cooked since the process started.
- cook_time - Duration of the last cook in milliseconds.
- cook_frame - Frame number when this operator was last cooked relative to the component timeline.
- cook_abs_frame - Frame number when this operator was last cooked relative to the absolute time.
- cook_start_time - Time in milliseconds at which the operator started cooking in the frame it was cooked.
- cook_end_time - Time in milliseconds at which the operator finished cooking in the frame it was cooked.
- cooked_this_frame - 1 if operator was cooked this frame.
- warnings - Number of warnings in this operator if any.
- errors - Number of errors in this operator if any.
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