The Timewarp Camera Pipeline

Slow motion is one of the hardest things to move across a pipeline. Maya wants to stretch time. Unreal wants to dilate it. Between those two ideas sits a camera that has to be animated in one time space, reviewed in another, and exported in a third.

Each stage has a tool that does its own job well. What breaks is the hand-off between them. Timing authored in Maya's scene time-warp lives in special nodes that do not travel, so the information a downstream engine needs is trapped where downstream tools cannot read it. Every hand-off becomes an opportunity to lose the exact thing you were trying to preserve.

This suite closes that gap.

Each is a working tool on its own. Together they are one path from an empty scene to a shot running at the right speed in Sequencer.

Every tool in this suite agrees on exactly one thing: a single keyable double named timewarpScale, living on the shot camera's transform. Default 1.0 is full speed. A 16x slow-motion beat bakes in at 0.0625.

The rig creates it. The timewarp tool writes per-segment speed onto it with stepped tangents. The export tool carries it onto the FBX. Unreal reads it to drive global time dilation.

One attribute is the entire interface between three tools. Anything that can find a camera can join this pipeline.

A warped Maya scene has two clocks running at once. Warped time is what the timeline reads and what the shot feels like. Normalized time is real time, and it is where every animation curve actually lives.

The camera is animated in normalized time. The shot is reviewed in warped time. timewarpScale is baked in normalized time, which is why the export must be normalized too, and why CamRigBake clamps its bake range to the last speed key rather than trusting the playback range.

Understanding that split is the difference between a slow-motion shot that lands and a week of chasing camera drift you cannot explain.

I directed; the AI wrote the code. Thirty-two hours across three tools, and the hours themselves are the most useful thing I can tell you about working this way.