@babylonjs/viewer/dist/chunks/set-emissive-BaULKXk1.esm.js

The Babylon Viewer aims to simplify a specific but common Babylon.js use case: loading, viewing, and interacting with a 3D model.

import { a3 as PBR_HAS_EMISSIVE_COLOR, y as PBR2_HAS_UV_TRANSFORM, P as PBR_HAS_EMISSIVE, a8 as _registerPbrExt } from './index-DMbDahsc.esm.js';

function createEmissiveColorFragment(hasEmissiveTexture, emissiveUV = "input.uv") {
  return {
    _id: "emissive-color",
    _uboFields: [
      { _name: "emissiveColor", _type: "vec3<f32>" },
      { _name: "_emissiveColorPad", _type: "f32" }
    ],
    _fragmentSlots: {
      AT: hasEmissiveTexture ? `emissive=material.emissiveColor*textureSample(emissiveTexture,emissiveSampler,${emissiveUV}).rgb;` : `emissive=material.emissiveColor;`
    }
  };
}
function writeEmissiveUBO(data, material, offsets) {
  if (!material._emissiveColor || !offsets.has("emissiveColor")) {
    return;
  }
  const off = offsets.get("emissiveColor") / 4;
  data[off] = material._emissiveColor[0];
  data[off + 1] = material._emissiveColor[1];
  data[off + 2] = material._emissiveColor[2];
}
const pbrExt = {
  id: "emissive-color",
  phase: "fragment",
  detect(mat) {
    return { f: mat._emissiveColor ? PBR_HAS_EMISSIVE_COLOR : 0, f2: 0 };
  },
  frag(ctx) {
    if (!(ctx._features & PBR_HAS_EMISSIVE_COLOR)) {
      return null;
    }
    const emissiveUV = ctx._features2 & PBR2_HAS_UV_TRANSFORM ? "emissiveUV" : (ctx._uv2Mask ?? 0) & 1 << 3 ? "input.uv2" : "input.uv";
    return createEmissiveColorFragment((ctx._features & PBR_HAS_EMISSIVE) !== 0, emissiveUV);
  },
  writeUbo: writeEmissiveUBO
};

function setPbrEmissive(mat, color) {
  mat._emissiveColor = color;
  _registerPbrExt(pbrExt);
}

export { setPbrEmissive };
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