> For the complete documentation index, see [llms.txt](https://flora.magneticarcade.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://flora.magneticarcade.com/rendering/motion-vectors.md).
# Motion Vectors
A simple overview of rendering dynamic instances.
Flora supports per-instance motion vectors for temporal anti-aliasing and motion blur.
## Enable motion vectors
Enable per-object motion vectors on the source Renderer. Flora then stores previous transforms, increasing memory and update cost.
## Terrain trees and details
Terrain trees follow `Terrain.treeMotionVectorModeOverride`. `InheritFromPrototype` uses the tree prototype Renderer settings. An explicit Terrain override takes precedence over the Scene Settings tree feature mask.
Terrain details use their prototype Renderer settings and require `MotionVectors` in **Allowed Detail Features**. The mask defaults to `None`.
## Inspect motion vectors
Use [Fish Boids Sample](/samples/runtime-samples.md#fish-boids) to inspect moving instances. With the camera stationary, moving fish should produce nonzero motion vectors.
Normal rendering from a stationary camera.
The sample visualizer shows direction as hue and magnitude as brightness; arrows indicate direction. Captured at a different animation frame.
