Module motion_blur 

Velocity-based motion blur pass.

High-velocity glyphs are sampled multiple times along their screen-space velocity vector with decreasing opacity, creating realistic motion streaks. The blur is:

1. Proportional to screen-space velocity magnitude
2. Directional (samples along the velocity vector)
3. Weighted by a falloff curve (more opacity near the actual position)
4. Optional: camera motion blur (blur entire frame by camera delta)

The velocity buffer is a CPU-side 2-channel texture (screen-space velocity per pixel).

Structs

MotionBlurParams

Motion blur pass parameters.

VelocityBuffer

Per-pixel screen-space velocity (in UV units/frame).

Enums

BlurQuality

Quality setting for blur sampling.

Functions

blur_sample_uvs

Compute sample UV offsets along a velocity vector.

sample_weight

Compute the opacity weight for the i-th sample in a blur of N samples.