🦁 womblewiki : a barebones houdini reference 🤓

labs overview sop

nodes chop cop2 dop lop obj out shelf sop top vop

simulation FEM RBD crowds dynamics fluids grains hair other particles pyro vellum

coding bash groups hscript python vex

particles

filter: 1_docs 2_emit_shelf 3_particles_shelf dop_POPs dop_forces emit_shelf particles_shelf sop_nodes

1_docs

dopparticles

>forces:

Make geometry attract or repel particles
Create a general directional force
Add random force to particles
Move particles along, toward, or around a curve
Make particles flock together

>reacting_to_surfaces:

Static Object
POP Collision Detect
POP Limit
POP Soft Limit

>limiting_particle_speed

Drag Particles: Apply drag to particles
Speed Limit: Set a high and low limit on the speed of particles
Wind On Particles: Push particles up to, but not past, a certain speed

>following_a_leader

Pop Attract followers stream

>visualizing_forces

Pop Force : Guide

>collisions

Pop Solver
Pop Collision Behaviour
Pop Collision Detect

>instancing_and_rendering

Instance geometry on particles
Rotate the instanced geometry using torque
Make the instanced geometry look at an object
Make the instanced geometry look at a plane
Rendering Instanced Geometry
Enable velocity blur on an object
Enable motion blur on a render node

>tips

To fix the problem of banding when dealing with strong forces, change the Jitter Birth Time on the POP Source from Positive to Negative.

>sprites

>streams

>attributes

>swirling_particles_around_vortex_filaments

>particle_vex_expressions