Struct VelocityBuffer 

pub struct VelocityBuffer {
    pub width: u32,
    pub height: u32,
    /* private fields */
}

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

This is populated each frame by the scene renderer before the blur pass. Glyphs with high velocity write their screen-space motion vector here.

Fields

width: u32

height: u32

Implementations

impl VelocityBuffer

pub fn new(width: u32, height: u32) -> Self

pub fn clear(&mut self)

pub fn set(&mut self, x: u32, y: u32, velocity: Vec2)

pub fn get(&self, x: u32, y: u32) -> Vec2

pub fn add(&mut self, x: u32, y: u32, velocity: Vec2)

Add velocity to a pixel (accumulate from multiple sources).

pub fn splat(&mut self, pos_px: Vec2, vel_uv: Vec2, radius_px: f32)

Write a glyph’s screen-space velocity to the buffer. pos_px is pixel position, vel_uv is screen-space velocity in UV units/frame. Writes to a small neighborhood for fill coverage.

pub fn clamp(&mut self, max_length: f32)

Clamp all velocities to max_length UV units per frame.

pub fn as_f32_slice(&self) -> &[f32]

Raw f32 slice for GPU upload (RG32F: 2 floats per pixel).

pub fn pixel_count(&self) -> usize