Some useful VEX.
DOP Random Air Resistance
DOP Random Spin
SOP Build Matrix
SOP Fake Collisions
SOP Delete Points by Threshold
SOP Line Network
SOP Random Pscale with Ramp-weighting, Seed, Min and Max
SOP Random Rotations
SOP Rotations
SOP Rotations Around Axis
SOP Spiral Curve
DOP Random Air Resistance
This one-liner will simply add random air resistance per particle within the minimum and maximum values
DOP Random Spin
This adds random spin to particles – put it in the popspin DOP
SOP Build Matrix
These wrangles will build a matrix, move the animated geo to the origin and then revert it back to it’s original world space.
SOP Fake Collisions Wrangle
This fella will push points within a volume outside of the volume. Pipe the collision SDF into the second input.
SOP Delete Points by Threshold
This snippet will delete random points based on the threshold slider. Taken from http://www.tokeru.com
SOP Create Lines Network
This snippet will create a network of lines based on distance threshold. Taken from Entagma’s “Creating Geo With Vex” video
SOP Random pscale with Ramp, Seed, Min and Max
This useful little dude will create a ramp that can be used with minimum, maximum and seed values to generate random pscale values with weighting.
A corresponding Attribute VOP would look something like this:
SOP Random Rotation Wrangle
A basic random rotation wrangle
SOP Rotation Wrangle
This guy will enable randomised rotations on particles. Add a time variable ($T/$F) into the angle input to get them moving.
SOP Rotate Around Axis
SOP Spiral Curve
Makes input curve into a spiral with controls