Struct BuiltinShapeUniforms 

pub struct BuiltinShapeUniforms {
    pub color: [f32; 4],
    pub color2: [f32; 4],
    pub shape: [f32; 4],
    pub params: [f32; 4],
    pub quad: [f32; 2],
}

The one uniform layout every built-in pipeline binds.

All geometry is in the RECORDING’s units (quad-local), with quad carrying the quad’s size in those same units. The shader computes px_scale = rosace_quad.size_px / quad and scales everything itself — so a conversion done at logical px (widget recording, scaled ×DPR at replay) and one done at physical px (scale 1:1) are BOTH correct, and HiDPI can never desynchronize uniforms from quad placement.

Fields

color: [f32; 4]

Primary color, LINEAR straight-alpha RGBA.

color2: [f32; 4]

Secondary color (gradient to), LINEAR straight-alpha RGBA.

shape: [f32; 4]

Shape geometry in quad-local units: rects (x, y, w, h); arcs (center_x, center_y, unused, unused).

params: [f32; 4]

Pipeline-specific parameters — see each conversion fn.

quad: [f32; 2]

The quad’s (w, h) in the same units as shape/params lengths.

Trait Implementations

impl ShaderUniforms for BuiltinShapeUniforms

fn to_bytes(&self) -> Vec<u8>