Function halton

native/shared/src/renderer/formats.rs:592–601

Halton low-discrepancy sequence (base `b`, index `i`, 1-based). Returns a value in [0, 1). Used to generate sub-pixel jitter offsets that are well-distributed across the pixel — the TAA accumulation effectively integrates over those sample points to produce a stably anti-aliased image.

(mut i: u32, b: u32)

/// accumulation effectively integrates over those sample points
/// to produce a stably anti-aliased image.
pub(super) fn halton(mut i: u32, b: u32) -> f32 {
    let mut f = 1.0_f32;
    let mut r = 0.0_f32;
    while i > 0 {
        f /= b as f32;
        r += f * (i % b) as f32;
        i /= b;
    }
    r
}

/// Create the two TAA history textures (HDR format, surface size).
pub(super) fn create_taa_textures(device: &wgpu::Device, width: u32, height: u32) -> ([wgpu::Texture; 2], [wgpu::TextureView; 2]) {