bh_KeyTools for Unreal Engine by Brian Horgan

bh_KeyTools for Unreal Engine: Animation Sequencer Plugin for Curve Editor Workflows

If you’ve spent any time animating in Unreal Engine’s Sequencer, you’ll know how much time gets eaten by little curve editor operations that should take half a second but somehow don’t. bh_KeyTools for Unreal Engine by Brian Horgan fixes exactly that. It’s an animation plugin for Unreal Engine 5.7 and later that adds a proper set of key and tangent tools to the Sequencer curve editor.

Brian’s built the kind of plugin that comes from years of actually animating in engine, not just reading the API docs. Every tool in here solves a real problem you’ll have run into: tangents that won’t sit right, loops that don’t loop cleanly, keys that need to invert or zero out, redundant keys cluttering your curves. The tools are scoped tight, they undo properly, and they slot straight into how you already work.

Why bh_KeyTools is worth installing

Unreal’s Sequencer is brilliant for cinematics and gameplay animation, but the curve editor is missing some of the workflow niceties Maya animators take for granted. bh_KeyTools fills those gaps. Invert Keys, Zero Keys, Average Keys, and Tighten Ease are all there. The Fix Loop Tangents and Fix Loop Values pair finally makes cyclic animation in Sequencer painless. And the Inertia Key tool is one of those small additions you didn’t know you needed until you’ve used it.

What’s inside bh_KeyTools

• Smooth selected keys: apply a spline-type ease in / out across selected keys. Great for softening mocap or detailed animation data
• Tight Ease selected keys: similar to Smooth but with a much tighter ease in / out applied
• Average selected keys: softens the difference between keys, useful for removing noise from mocap
• Linearize selected keys: adjusts values to keep transitions linear, great for fixing sliding feet in walks and runs
• Invert selected keys: flips key values and tangents in place, with tangent shape preserved
• Zero selected keys: sets selected key values to zero in one click
• Inertia Key: adds procedural overshoot and settle behaviour to your curve
• Delete Redundant Keys: removes keys that don’t contribute to the curve, within a tolerance
• Fix Loop Tangents and Fix Loop Values: a proper pair of tools for cyclic animation
• Scale keys from average: scale the amplitude of selected keys from their average
• Tangent debug tools: visualise and inspect tangent values when troubleshooting curves
• Control Rig selection support and clean undo behaviour across every operation

What bh_KeyTools is great for

• Animators moving from Maya to Unreal who miss curve editor utilities
• Speeding up polish and clean-up passes in Sequencer
• Cycle and loop animation, including gameplay cycles
• Control Rig animators who need faster curve editing
• Cinematic and gameplay animation in Unreal Engine 5.7+
• Studio teams looking to improve animator workflow inside Unreal

License options

• Personal: for individual creators or small teams with not more than $100k of revenue or funding in the last 12 months
• Professional: for studios or other entities with over $100k revenue or funding in the past 12 months

Requirements

• Unreal Engine 5.7 or later
• Windows 64-bit
• Documentation videos included: How To Install, and Launching and Using The Tools

bh_KeyTools by Brian Horgan.