Home Recipes Install About Log In

Houdini Cookbook

all animation copernicus flip geometry lighting pyro rigging rigid body shading solaris vdb vellum vex
10 recipes tagged "fx" Clear
Animate Apex Rig Procedurally
sop Animate Apex Rig Procedurally

Example on how to animate APEX rig procedurally using Time inside of APEX graph. It also show how to make it work with manual animation created by Scene Animate SOP. It also include several other examples on how to invoke APEX graph.

Aug 06, 2026 · 21.0.729 · rigging · by kif
apex IK procedural animation kinefx time frame graph invoke
Simple Kinefx Ik
sop Simple Kinefx Ik

Simple mechanical arm using KineFX IK and Capture Packed Geometry SOP.

Aug 01, 2026 · 21.0.729 · rigging · by kif
ik kinefx mechanical rig arm ikchain animate
Make Rigs Unique
sop Make Rigs Unique

Let say you have a skeleton and a skinned shape that you want to duplicate bunch of times and then control it as a single rig for example insect leg. This setup take packed duplicated kinefx rigs and make it unique by renaming bones according to packed rig names. See title image for clarification.

Jul 16, 2026 · 21.0.729 · rigging · by kif
kinefx rig duplicate skeleton unique rename
Capture Packed Geo
sop Capture Packed Geo

Capture Packed Geo can be tricky to set up right since it does not display an error on attribute mismatch. This example show how to set it up using corresponding name attribute on rig and packed geometry objects.

Jul 15, 2026 · 21.0.729 · rigging · by kif
rig rigid packed robot insect pieces kinefx capturepackedgeo
Smooth Object Motion
sop Smooth Object Motion

Setup to smooth the motion of any arbitrary rigid body geometry, no rig required. Our use case was to quickly smooth motion data coming from a tracking software.

Jan 11, 2026 · 20.5.584 · animation · by snay
object tracking motion kinefx noise
Worm Rig
sop Worm Rig

Simple cartoon rig if you ever need a cute worm sliding across the screen.

Jan 02, 2026 · 21.0.440 · animation · by hugomorais
kinefx rig animation worm
Unfurling Flower Pod
sop Unfurling Flower Pod

Building up from the unfurling stem example, this snippet assembles the stems into a flower pod. The animation includes a rig attribute wrangle as the main control, and a kinefx secondary motion for extra livity.

Nov 08, 2025 · 20.5.584 · animation · by snay
kinefx plant organic unfurling secondary motion kkfrag
Gradient Flow
sop Gradient Flow

Compute flow direction vector and propogate it along mesh. This is done without simulation by using ForEach.

Nov 05, 2025 · 20.5.584 · vex · by kif
fx effect grow infection propogation direction flow vector
Unfurling Stem
sop Unfurling Stem

Create a plant like unfurling animation by converting a line to a KineFX rig and applying a compounding rotation.

Nov 05, 2025 · 20.5.584 · animation · by snay
nature organic plants kinefx rig stem kkfrag
Points To Surface
sop Points To Surface

Manually art direct the position of multiple points, while still having them snap to a surface. Each point can be manually rotated, scaled, and positioned using Rig Pose.

Nov 03, 2025 · 20.5.584 · geometry · by snay
surface kinefx rig pose points raycast transform