gpu-curtains

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gpu-curtains is a 3D WebGPU rendering engine. It can be used as a standalone 3D engine, but also includes extra classes focused on mapping 3d objects to DOM elements; It allows users to synchronize values such as position, sizing, or scale between them.

martinlaxenaire.github.io/gpu-curtains/

martinlaxenaire/gpu-curtains

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JavaScript

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//#region src/core/shaders/chunks/fragment/head/get-PBR-direct-sheen.ts
/**
* WGSL functions to calculate sheen BRDF specular direct contribution.
*/
const getPBRDirectSheen = `
fn BRDF_Sheen(
  lightDirection: vec3f,
  viewDirection: vec3f,
  normal: vec3f,
  sheenColor: vec3f,
  sheenRoughness: f32
) -> vec3f {
  let halfDir: vec3f = normalize( lightDirection + viewDirection );

  let dotNL: f32 = saturate( dot( normal, lightDirection ) );
  let dotNV: f32 = saturate( dot( normal, viewDirection ) );
  let dotNH: f32 = saturate( dot( normal, halfDir ) );

  let D: f32 = D_Charlie( sheenRoughness, dotNH );
  let V: f32 = V_Neubelt( dotNV, dotNL );

  return sheenColor * ( D * V );
}
`;
//#endregion
export { getPBRDirectSheen };