@babylonjs/viewer/dist/chunks/gltf-uv-denorm-BG4PirBz.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 { F as F32 } from './index-By0tcgYN.esm.js';

const FLOAT = 5126;
const UNSIGNED_SHORT = 5123;
const UNSIGNED_BYTE = 5121;
const COMP_BYTES = { [UNSIGNED_BYTE]: 1, [UNSIGNED_SHORT]: 2, [FLOAT]: 4 };
function resolveUvVec2(json, binChunk, idx) {
  const accessor = json.accessors[idx];
  const ct = accessor.componentType;
  const cb = COMP_BYTES[ct] ?? 4;
  const bv = json.bufferViews[accessor.bufferView];
  const stride = bv.byteStride ?? 2 * cb;
  const inv = ct === UNSIGNED_BYTE ? 1 / 255 : ct === UNSIGNED_SHORT ? 1 / 65535 : 1;
  const base = (bv.byteOffset ?? 0) + (accessor.byteOffset ?? 0);
  const out = new F32(accessor.count * 2);
  for (let v = 0; v < accessor.count; v++) {
    const row = base + v * stride;
    for (let c = 0; c < 2; c++) {
      const off = row + c * cb;
      const raw = ct === FLOAT ? binChunk.getFloat32(off, true) : ct === UNSIGNED_SHORT ? binChunk.getUint16(off, true) : binChunk.getUint8(off);
      out[v * 2 + c] = raw * inv;
    }
  }
  return out;
}

export { resolveUvVec2 };
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