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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const getIBLIndirectRadiance = (
  /* wgsl */
  `
fn getIBLIndirectRadiance(
  normal: vec3f,
  viewDirection: vec3f,
  roughness: f32,
  specularColor: vec3f,
  specularFactor: f32,
  iBLGGXFresnel: IBLGGXFresnel,
  clampSampler: sampler,
  envSpecularTexture: texture_cube<f32>,
  envRotation: mat3x3f,
  envSpecularIntensity: f32,
)-> vec3f {
  let N: vec3f = normal;
  let V: vec3f = viewDirection;
  let NdotV: f32 = saturate(dot(N, V));

  let reflection: vec3f = normalize(reflect(-V, N));

  let lod: f32 = roughness * f32(textureNumLevels(envSpecularTexture) - 1);

  let specularLight: vec4f = textureSampleLevel(
    envSpecularTexture,
    clampSampler,
    reflection * envRotation,
    lod
  );

  return specularLight.rgb * envSpecularIntensity;
}
`
);

export { getIBLIndirectRadiance };