Motion Vectors

A simple overview of rendering dynamic instances.

Flora supports per-instance motion vectors for effects like TAA and motion blur.

What This Affects

• Visual quality for moving instances.

• Memory usage (previous transform storage).

• Per-frame update cost for moving instances.

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Enabling Motion Vectors

1. In Global Settings, ensure DisablePerObjectMotionVectors is off.

2. In Scene Settings, enable AllowPerObjectMotionVectors.

3. For terrain-specific paths, enable tree/detail motion vector toggles as needed.

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How It Works

If prefab renderers request per-object motion vectors, Flora stores previous transforms and emits motion-vector data for those instances.

Tip: enable this only where needed to avoid unnecessary memory cost.

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Terrain Trees and Details

SceneSettings can separately enable motion vectors for terrain trees/details. These still depend on AllowPerObjectMotionVectors.

How To Verify

• Enable motion vectors and confirm moving Flora instances contribute to motion blur/TAA.

• Disable either project or scene gate and confirm contribution stops.