@babylonjs/viewer/dist/chunks/animation-pointer-lights-f4E4fB55.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 { g as getGltfPunctualLight } from './gltf-light-pointer-state-FBNUQ5Q_.esm.js';
import { _ as _appendPointerHandlers } from './gltf-feature-animation-pointer-DbLO7iMT.esm.js';
import './index-By0tcgYN.esm.js';
import './visibility-BuRfFMHe.esm.js';
import './gltf-animation-CvJhPzAe.esm.js';

const _lightHandlers = [
  // /extensions/KHR_lights_punctual/lights/{l}/{color|intensity|range|spot/outerConeAngle}
  [
    /^\/extensions\/KHR_lights_punctual\/lights\/(\d+)\/(color|intensity|range|spot\/outerConeAngle)$/,
    (m, ctx) => {
      const lightIdx = +m[1];
      const field = m[2];
      const getLight = () => {
        return getGltfPunctualLight(ctx._json, lightIdx) ?? null;
      };
      return {
        arity: field === "color" ? 3 : 1,
        writer: (out, off) => {
          const light = getLight();
          if (!light) {
            return;
          }
          if (field === "color") {
            if (light.diffuse) {
              light.diffuse[0] = out[off];
              light.diffuse[1] = out[off + 1];
              light.diffuse[2] = out[off + 2];
            }
            if (light.specular) {
              light.specular[0] = out[off];
              light.specular[1] = out[off + 1];
              light.specular[2] = out[off + 2];
            }
          } else if (field === "intensity") {
            light.intensity = out[off];
          } else if (field === "range") {
            light.range = out[off];
          } else if (light.lightType === "spot") {
            light.angle = out[off] * 2;
          }
          light._bumpLightVersion?.();
        }
      };
    }
  ]
];
_appendPointerHandlers(_lightHandlers);
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