bevy/crates/bevy_pbr/src/render/utils.wgsl

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#define_import_path bevy_pbr::utils
let PI: f32 = 3.141592653589793;
fn saturate(value: f32) -> f32 {
return clamp(value, 0.0, 1.0);
}
fn hsv2rgb(hue: f32, saturation: f32, value: f32) -> vec3<f32> {
let rgb = clamp(
abs(
((hue * 6.0 + vec3<f32>(0.0, 4.0, 2.0)) % 6.0) - 3.0
) - 1.0,
vec3<f32>(0.0),
vec3<f32>(1.0)
);
return value * mix( vec3<f32>(1.0), rgb, vec3<f32>(saturation));
}
fn random1D(s: f32) -> f32 {
return fract(sin(s * 12.9898) * 43758.5453123);
}