webgpu-pipeline-kit/dist/index.js

A type-safe declarative way of creating WebGPU pipelines

"use strict";
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var src_exports = {};
__export(src_exports, {
  factories: () => factories,
  setLogLevel: () => setLogLevel
});
module.exports = __toCommonJS(src_exports);

// src/logging.ts
var import_loglevel = __toESM(require("loglevel"));
var prefix = "webgpu-pipeline-kit";
var getLogger = (namespace) => import_loglevel.default.getLogger(`${prefix}:${namespace}`);
var lazyWarn = (logger, warnMessageFunc) => {
  if (logger.getLevel() <= logger.levels.WARN) {
    logger.warn(warnMessageFunc());
  }
};
var lazyInfo = (logger, infoMessageFunc) => {
  if (logger.getLevel() <= logger.levels.INFO) {
    logger.info(infoMessageFunc());
  }
};
var lazyDebug = (logger, debugMessageFunc) => {
  if (logger.getLevel() <= logger.levels.DEBUG) {
    logger.debug(debugMessageFunc());
  }
};
var lazyTrace = (logger, traceMessageFunc) => {
  if (logger.getLevel() <= logger.levels.TRACE) {
    logger.trace(traceMessageFunc());
  }
};
var setLogLevel = (level, namespace) => {
  if (namespace !== void 0) {
    getLogger(namespace).setLevel(level);
  } else {
    const allLoggers = import_loglevel.default.getLoggers();
    for (const [name, logger] of Object.entries(allLoggers)) {
      if (name.startsWith(prefix)) {
        logger.setLevel(level);
      }
    }
  }
};

// src/utils/compare.ts
var equalityFactory = {
  ofDoubleEquals: () => (a, b) => a == b,
  ofTripleEquals: () => (a, b) => a === b
};

// src/utils/array.ts
var arrayFuncs = {
  equals: (a, b, equality = equalityFactory.ofTripleEquals()) => {
    if (a.length !== b.length) {
      return false;
    }
    return a.every((val, i) => equality(val, b[i]));
  },
  shuffle: (array, random2) => {
    const shuffled = [...array];
    for (let i = shuffled.length - 1; i > 0; i--) {
      const j = random2.intMinMax(0, i);
      [shuffled[i], shuffled[j]] = [shuffled[j], shuffled[i]];
    }
    return shuffled;
  },
  merge: (...arrays) => arrays.flatMap((arr) => arr ?? []),
  toRecord: (array, toKey, toValue) => {
    return array.reduce((acc, element) => {
      const key = toKey(element);
      const value = toValue(element);
      acc[key] = value;
      return acc;
    }, {});
  },
  toMap: (array, toKey, toValue) => {
    return array.reduce((acc, element, index) => {
      const key = toKey(element, index);
      const value = toValue(element, index);
      acc.set(key, value);
      return acc;
    }, /* @__PURE__ */ new Map());
  }
};

// src/utils/BidiMap.ts
var BidiMap = class {
  constructor() {
    this.keyValues = /* @__PURE__ */ new Map();
    this.valueKeys = /* @__PURE__ */ new Map();
  }
  get size() {
    return this.keyValues.size;
  }
  clear() {
    this.keyValues.clear();
    this.valueKeys.clear();
  }
  entries() {
    return this.keyValues.entries();
  }
  forEach(callbackFn) {
    for (const [key, value] of this.keyValues) {
      callbackFn(value, key, this);
    }
  }
  delete(key) {
    const hasKey = this.keyValues.has(key);
    if (hasKey) {
      const value = this.keyValues.get(key);
      this.keyValues.delete(key);
      if (value !== void 0) {
        this.valueKeys.delete(value);
      }
    }
    return hasKey;
  }
  deleteValue(value) {
    const hasValue = this.valueKeys.has(value);
    if (hasValue) {
      const key = this.valueKeys.get(value);
      this.valueKeys.delete(value);
      if (key !== void 0) {
        this.keyValues.delete(key);
      }
    }
    return hasValue;
  }
  get(key) {
    return this.keyValues.get(key);
  }
  getKey(value) {
    return this.valueKeys.get(value);
  }
  set(key, value, removeDuplicateValue) {
    if (removeDuplicateValue || !this.valueKeys.has(value)) {
      this.keyValues.set(key, value);
      this.valueKeys.set(value, key);
    }
    return this;
  }
  has(key) {
    return this.keyValues.has(key);
  }
  hasValue(value) {
    return this.valueKeys.has(value);
  }
  keys() {
    return this.keyValues.keys();
  }
  values() {
    return this.valueKeys.keys();
  }
};

// src/utils/Capacity.ts
var Capacity = class {
  constructor(min, requiredMultiple, capacityMultiple) {
    this.min = min;
    this.requiredMultiple = requiredMultiple;
    this.capacityMultiple = capacityMultiple;
    this._capacity = 0;
    this._capacity = min;
  }
  get capacity() {
    return this._capacity;
  }
  set capacity(capacity) {
    this._capacity = capacity;
  }
  ensureCapacity(required) {
    const oldCapacity = this._capacity;
    const hasIncreased = required > this._capacity;
    if (hasIncreased) {
      this._capacity = Math.round(
        Math.max(
          this.min,
          required * this.requiredMultiple,
          oldCapacity * this.capacityMultiple
        )
      );
    }
    return hasIncreased;
  }
};

// src/utils/changeDetector.ts
var changeDetectorFactory = {
  of: (first, equals) => {
    let current = first;
    return {
      get() {
        return current;
      },
      compareAndUpdate(next) {
        const hasChanged = current === void 0 || !equals(current, next);
        current = next;
        return hasChanged;
      }
    };
  },
  ofDoubleEquals: (first) => {
    return changeDetectorFactory.of(first, (a, b) => a == b);
  },
  ofTripleEquals: (first) => {
    return changeDetectorFactory.of(first, (a, b) => a === b);
  }
};

// src/utils/Color.ts
var colorFactory = {
  BLACK: { r: 0, g: 0, b: 0, a: 1 },
  RED: { r: 1, g: 0, b: 0, a: 1 },
  GREEN: { r: 0, g: 1, b: 0, a: 1 },
  BLUE: { r: 0, g: 0, b: 1, a: 1 },
  WHITE: { r: 1, g: 1, b: 1, a: 1 },
  of(r = 0, g = 0, b = 0, a = 1) {
    return {
      r,
      g,
      b,
      a
    };
  }
};

// src/utils/floats.ts
var floatFuncs = {
  float32ToFloat16: (val) => {
    const floatView = new Float32Array(1);
    const intView = new Uint32Array(floatView.buffer);
    floatView[0] = val;
    const x = intView[0];
    const sign = x >>> 31 << 15;
    const exponent = (x >> 23 & 255) - 127 + 15;
    const mantissa = x & 8388607;
    if (exponent <= 0) {
      if (exponent < -10) {
        return sign;
      }
      const m = (mantissa | 8388608) >> 1 - exponent;
      return sign | m + 4096 >> 13;
    } else if (exponent === 255 - 127 + 15) {
      if (mantissa === 0) {
        return sign | 31744;
      }
      return sign | 31744 | (mantissa >> 13 || 1);
    } else if (exponent >= 31) {
      return sign | 31744;
    }
    return sign | exponent << 10 | mantissa + 4096 >> 13;
  }
};

// src/utils/functions.ts
var callCreatorOf = () => (methodName) => (target, ...args) => target[methodName](...args);

// src/utils/math.ts
var mathFuncs = {
  HALF_PI: 0.5 * Math.PI,
  TWO_PI: 2 * Math.PI,
  clamp: (value, min, max) => {
    return Math.max(min, Math.min(max, value));
  },
  gcd: (...numbers) => {
    if (numbers.length === 0) {
      throw new Error("Array must contain at least one number.");
    }
    const gcdAB = (a, b) => {
      while (b !== 0) {
        const temp = b;
        b = a % b;
        a = temp;
      }
      return Math.abs(a);
    };
    return numbers.reduce((acc, num) => gcdAB(acc, num));
  },
  geometricMean: (...elements) => {
    const product = elements.reduce((total, value) => total * value, 1);
    return Math.pow(product, 1 / elements.length);
  },
  harmonicMean: (...elements) => {
    const sumReciprocals = elements.reduce((total, value) => total + 1 / value, 0);
    return elements.length / sumReciprocals;
  },
  sumMapValues: (map) => Array.from(map.values()).reduce((sum, value) => sum + value, 0),
  nextMultipleOf: (num, multiple) => Math.ceil(num / multiple) * multiple
};

// src/utils/random.ts
var import_random = require("@thi.ng/random");
var randomFactory = {
  ofSeed: (seed) => {
    const xoshiro128 = new import_random.Xoshiro128([seed.a, seed.b, seed.c, seed.d]);
    return createRandomFromXoshiro128(xoshiro128);
  },
  ofString: (str) => {
    const seed = createSeedFromString(str);
    const xoshiro128 = new import_random.Xoshiro128([seed.a, seed.b, seed.c, seed.d]);
    return createRandomFromXoshiro128(xoshiro128);
  }
};
var createSeedFromString = (str) => {
  const length2 = str.length;
  if (length2 < 4) {
    throw Error(`Seed must have length >= 4 but is ${length2}`);
  }
  const a = createSeedElement(str, 0, 0);
  const b = createSeedElement(str, 0, Math.round(0.25 * length2));
  const c = createSeedElement(str, 0, Math.round(0.5 * length2));
  const d = createSeedElement(str, 0, Math.round(0.75 * length2));
  return { a, b, c, d };
};
var createSeedElement = (seed, hashStart, index) => {
  const hashMiddle = hashChars(seed, hashStart, index, seed.length);
  const hashEnd = hashChars(seed, hashMiddle, 0, index);
  return hashEnd >>> 0;
};
var hashChars = (seed, hash, startIndex, endIndex) => {
  for (let i = startIndex; i < endIndex; i++) {
    hash = Math.imul(hash ^ seed.charCodeAt(i), 1540483477);
    hash = hash ^ hash >> 13;
  }
  return hash;
};
var createRandomFromXoshiro128 = (xoshiro128) => {
  return {
    getSeed() {
      const buffer = xoshiro128.buffer;
      return {
        a: buffer[0],
        b: buffer[1],
        c: buffer[2],
        d: buffer[3]
      };
    },
    boolean() {
      return this.true(0.5);
    },
    false(proportion) {
      return this.true(1 - proportion);
    },
    true(proportion) {
      return xoshiro128.float() < proportion;
    },
    int() {
      return xoshiro128.int();
    },
    intRange(range) {
      return this.intMinMax(range.min, range.max);
    },
    intMirrorZero(minMax) {
      const abs = Math.abs(minMax);
      return this.intMinMax(-abs, abs);
    },
    intMinMax(min, max) {
      return xoshiro128.minmaxInt(min, max + 1);
    },
    float() {
      return xoshiro128.float();
    },
    floatRange(range) {
      return this.floatMinMax(range.min, range.max);
    },
    floatMirrorZero(minMax) {
      const abs = Math.abs(minMax);
      return this.floatMinMax(-abs, abs);
    },
    floatMinMax(min, max) {
      return xoshiro128.minmax(min, max);
    },
    lowerCharCode() {
      return this.intMinMax(97, 123);
    },
    upperCharCode() {
      return this.intMinMax(65, 91);
    },
    uuidV4Like() {
      const hex = [];
      for (let i = 0; i < 4; i++) {
        const r = this.int() >>> 0;
        hex.push(r.toString(16).padStart(8, "0"));
      }
      return hex[0] + "-" + hex[1].slice(0, 4) + "-4" + hex[1].slice(5, 8) + "-" + (parseInt(hex[2][0], 16) & 3 | 8).toString(16) + hex[2].slice(1, 4) + "-" + hex[2].slice(4) + hex[3];
    },
    word() {
      const min = this.intMinMax(2, 5);
      const max = this.intMinMax(5, 8);
      return this.wordMinMax(min, max);
    },
    wordRange(range) {
      return this.wordMinMax(range.min, range.max);
    },
    wordMinMax(min, max) {
      const charCodes = [];
      charCodes.push(this.upperCharCode());
      const subsequent = xoshiro128.minmaxUint(min, max);
      for (let i = 1; i <= subsequent; i++) {
        charCodes.push(this.lowerCharCode());
      }
      return String.fromCharCode(...charCodes);
    }
  };
};

// src/utils/record.ts
var recordFuncs = {
  filter: (record, predicate) => {
    return Object.fromEntries(
      Object.entries(record).filter(
        ([key, value]) => predicate(value, key)
      )
    );
  },
  forEach: (record, apply) => {
    Object.entries(record).map(([key, value]) => [key, apply(value, key)]);
  },
  mapRecord: (record, transform) => {
    return Object.fromEntries(
      Object.entries(record).map(([key, value]) => [key, transform(value, key)])
    );
  },
  toMap: (record, transform) => {
    return new Map(Object.entries(record).map(([key, value]) => [key, transform(value, key)]));
  },
  toArray: (record, transform) => {
    return Object.entries(record).map(([key, value]) => transform(value, key));
  }
};

// src/utils/slice.ts
var sliceFuncs = {
  ofInts: (nums) => {
    const slices = [];
    if (nums.length === 0) {
      return slices;
    }
    const sorted = nums.sort((a, b) => a - b);
    let min = sorted[0];
    let max = min;
    for (let i = 1; i < sorted.length; i++) {
      const num = sorted[i];
      if (!Number.isInteger(num)) {
        throw Error(`Cannot create slices with non-integer number ${num}`);
      }
      if (num === max || num === max + 1) {
        max = num;
      } else {
        slices.push({ min, length: max + 1 - min });
        min = max = num;
      }
    }
    slices.push({ min, length: max + 1 - min });
    return slices;
  },
  ofMap: (map) => {
    const sortedEntries = Array.from(map.entries()).sort(([indexA], [indexB]) => indexA - indexB);
    const values = sortedEntries.map(([, value]) => value);
    const indexes = sortedEntries.map(([index]) => index);
    const slices = sliceFuncs.ofInts(indexes);
    const copySlices = Array.from({ length: slices.length });
    let fromIndex = 0;
    for (const [sliceIndex, slice] of slices.entries()) {
      const { length: length2, min } = slice;
      copySlices[sliceIndex] = {
        min: fromIndex,
        length: length2,
        toIndex: min
      };
      fromIndex += length2;
    }
    return {
      copySlices,
      values
    };
  }
};

// src/utils/string.ts
var stringFuncs = {
  canBePositiveInt: (str) => "0" === str || /^[1-9]\d*$/.test(str)
};

// src/utils/Vec3.ts
var vec3Funcs = {
  ZERO: [0, 0, 0],
  ONE: [1, 1, 1],
  X: [1, 0, 0],
  Y: [0, 1, 0],
  Z: [0, 0, 1],
  of(x = 0, y = 0, z = 0) {
    return [x, y, z];
  },
  add(a, b) {
    return [a[0] + b[0], a[1] + b[1], a[2] + b[2]];
  },
  subtract(a, b) {
    return [a[0] - b[0], a[1] - b[1], a[2] - b[2]];
  },
  cross(a, b) {
    const a0 = a[0];
    const a1 = a[1];
    const a2 = a[2];
    const b0 = b[0];
    const b1 = b[1];
    const b2 = b[2];
    return [
      a1 * b2 - a2 * b1,
      a2 * b0 - a0 * b2,
      a0 * b1 - a1 * b0
    ];
  },
  dot(a, b) {
    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
  },
  distance(a, b) {
    return vec3Funcs.length(vec3Funcs.subtract(a, b));
  },
  distanceSquared(a, b) {
    return vec3Funcs.lengthSquared(vec3Funcs.subtract(a, b));
  },
  length(v) {
    return Math.hypot(v[0], v[1], v[2]);
  },
  lengthSquared(v) {
    return v[0] ** 2 + v[1] ** 2 + v[2] ** 2;
  },
  lerp(a, b, t) {
    const a0 = a[0];
    const a1 = a[1];
    const a2 = a[2];
    return [
      a0 + (b[0] - a0) * t,
      a1 + (b[1] - a1) * t,
      a2 + (b[2] - a2) * t
    ];
  },
  midpoint(a, b) {
    return vec3Funcs.normalize([
      (a[0] + b[0]) / 2,
      (a[1] + b[1]) / 2,
      (a[2] + b[2]) / 2
    ]);
  },
  negate(v) {
    return [-v[0], -v[1], -v[2]];
  },
  normalize(v) {
    const len = vec3Funcs.length(v);
    return len === 0 ? [0, 0, 0] : vec3Funcs.scale(v, 1 / len);
  },
  scale(v, scalar) {
    return [v[0] * scalar, v[1] * scalar, v[2] * scalar];
  },
  equals(a, b, epsilon = 1e-6) {
    return Math.abs(a[0] - b[0]) < epsilon && Math.abs(a[1] - b[1]) < epsilon && Math.abs(a[2] - b[2]) < epsilon;
  },
  toString(v) {
    return `[${v[0].toFixed(3)}, ${v[1].toFixed(3)}, ${v[2].toFixed(3)}]`;
  }
};

// src/cache.ts
var LOGGER = getLogger("cache");
var random = randomFactory.ofString((/* @__PURE__ */ new Date()).toISOString());
var cacheFactory = {
  ofUniform: (_uniformFormat, initialUniform, mutable) => {
    lazyDebug(LOGGER, () => `Creating uniform cache from format ${JSON.stringify(_uniformFormat)}`);
    let previous = initialUniform;
    let next = initialUniform;
    const cache = {
      isMutable: mutable,
      isDirty: () => previous !== next,
      get() {
        previous = next;
        return next;
      }
    };
    if (mutable) {
      lazyTrace(LOGGER, () => "Making uniform cache mutable");
      const typedCached = cache;
      typedCached.mutate = (uniform) => next = uniform;
    }
    return cache;
  },
  ofEntitiesFixedSize: (_entityFormat, mutable, ...elements) => {
    lazyDebug(LOGGER, () => `Creating fixed size entity cache from format ${JSON.stringify(_entityFormat)}`);
    const mutated = /* @__PURE__ */ new Map();
    elements.forEach((element, index) => mutated.set(index, element));
    const cache = {
      isMutable: mutable,
      isResizeable: false,
      count: () => elements.length,
      isDirty: () => mutated.size > 0,
      calculateChanges() {
        const slices = sliceFuncs.ofMap(mutated);
        mutated.clear();
        lazyTrace(LOGGER, () => `Calculated entity cache changes ${JSON.stringify(slices)}`);
        return slices;
      }
    };
    if (mutable) {
      lazyTrace(LOGGER, () => "Making entity cache mutable");
      const typedCache = cache;
      typedCache.mutate = (index, instance) => {
        lazyTrace(LOGGER, () => `Mutating instance with index ${index}`);
        mutated.set(index, instance);
      };
    }
    return cache;
  },
  ofEntitiesResizeable: (_entityFormat, mutable) => {
    lazyDebug(LOGGER, () => `Creating resizeable entity cache from format ${JSON.stringify(_entityFormat)}`);
    const idIndexes = new BidiMap();
    const backing = /* @__PURE__ */ new Map();
    const added = /* @__PURE__ */ new Map();
    const mutated = /* @__PURE__ */ new Map();
    const removed = /* @__PURE__ */ new Set();
    const cache = {
      isMutable: mutable,
      isResizeable: true,
      count: () => backing.size,
      isDirty: () => added.size > 0 || mutated.size > 0 || removed.size > 0,
      calculateChanges() {
        added.forEach((instance, id) => backing.set(id, instance));
        mutated.forEach((instance, id) => backing.set(id, instance));
        removed.forEach((id) => backing.delete(id));
        const stagingIdInstances = [
          ...added,
          ...mutated
        ];
        const stagingIds = stagingIdInstances.map(([id]) => id);
        const stagingInstances = stagingIdInstances.map(([, instance]) => instance);
        const copySlices = [];
        const previousUsed = idIndexes.size;
        const newUsed = previousUsed + added.size - removed.size;
        const oldIds = [
          ...mutated.keys(),
          ...removed.keys()
        ];
        const oldIndexes = oldIds.map((id) => idIndexes.get(id)).filter((index) => index !== void 0);
        oldIndexes.forEach((oldIndex) => idIndexes.deleteValue(oldIndex));
        const overwrittenIndexes = oldIndexes.filter((index) => index < newUsed);
        const overwrittenSlices = sliceFuncs.ofInts(overwrittenIndexes);
        let stagingIndexOffset = 0;
        for (const overwrittenSlice of overwrittenSlices) {
          const { min, length: length2 } = overwrittenSlice;
          const copySlice = {
            min: stagingIndexOffset,
            length: length2
          };
          copySlices.push({
            ...copySlice,
            toIndex: min
          });
          for (let i = 0; i < length2; i++) {
            const newIndex = min + i;
            const stagingIndex = stagingIndexOffset + i;
            const stagingId = stagingIds[stagingIndex];
            idIndexes.set(stagingId, newIndex, true);
          }
          stagingIndexOffset += length2;
        }
        if (newUsed > previousUsed) {
          const appendCount = newUsed - previousUsed;
          const appendSlice = {
            min: stagingIndexOffset,
            length
          };
          copySlices.push({
            ...appendSlice,
            toIndex: previousUsed
          });
          for (let i = 0; i < appendCount; i++) {
            const newIndex = previousUsed + i;
            const stagingIndex = stagingIndexOffset + i;
            const stagingId = stagingIds[stagingIndex];
            idIndexes.set(stagingId, newIndex, true);
          }
        } else if (newUsed < previousUsed) {
          const replacedIndexes = oldIndexes.filter((index) => index >= newUsed);
          let movedIndex = previousUsed;
          for (const replacedIndex of replacedIndexes) {
            movedIndex--;
            while (movedIndex > newUsed && replacedIndexes.includes(movedIndex)) {
              movedIndex--;
            }
            if (movedIndex > replacedIndex) {
              const movedId = idIndexes.getKey(movedIndex);
              if (movedId !== void 0) {
                const movedSlice = {
                  min: movedIndex,
                  length: 1
                };
                copySlices.push({
                  ...movedSlice,
                  toIndex: replacedIndex
                });
                idIndexes.set(movedId, replacedIndex, true);
              }
            }
          }
        }
        const command = {
          values: stagingInstances,
          copySlices
        };
        added.clear();
        removed.clear();
        mutated.clear();
        lazyTrace(LOGGER, () => `Calculated entity cache changes ${JSON.stringify(command)}`);
        return command;
      },
      add(element) {
        const id = random.uuidV4Like();
        lazyTrace(LOGGER, () => `Add element with id ${id}`);
        added.set(id, element);
        return id;
      },
      remove(id) {
        lazyTrace(LOGGER, () => `Remove element with id ${id}`);
        if (backing.has(id)) {
          added.delete(id);
          mutated.delete(id);
          removed.add(id);
        }
      },
      indexOf(id) {
        const index = idIndexes.get(id);
        const validIndex = index === void 0 ? -1 : index;
        lazyTrace(LOGGER, () => `Index of id ${id} is ${validIndex}`);
        return validIndex;
      }
    };
    if (mutable) {
      lazyTrace(LOGGER, () => "Making entity cache mutable");
      const typedCache = cache;
      typedCache.mutate = (id, instance) => {
        lazyTrace(LOGGER, () => `Mutating instance with id ${id}`);
        if (!removed.has(id)) {
          if (backing.has(id)) {
            mutated.set(id, instance);
          } else if (added.has(id)) {
            added.set(id, instance);
          }
        }
      };
    }
    return cache;
  }
};

// src/mesh.ts
var LOGGER2 = getLogger("mesh");
var meshFuncs = {
  UINT32_INDEX_COUNT: 1 << 16,
  VERTICES_PER_TRIANGLE: 3,
  cullMode: (mesh) => mesh.winding === "cw" ? "front" : "back",
  indicesType: (mesh) => mesh.indices.length < meshFuncs.UINT32_INDEX_COUNT ? "uint16" : "uint32",
  indicesCount: (mesh) => mesh.indices.length * 3,
  indicesBytesLength: (mesh) => {
    const indicesCount = meshFuncs.indicesCount(mesh);
    return indicesCount < meshFuncs.UINT32_INDEX_COUNT ? indicesCount * 2 : indicesCount * 4;
  },
  toIndicesData: (mesh) => {
    const indicesType = meshFuncs.indicesType(mesh);
    const flatIndices = mesh.indices.flat();
    const TypedArrayConstructor = indicesType === "uint16" ? Uint16Array : Uint32Array;
    const typedArray = new TypedArrayConstructor(flatIndices);
    const byteLength = typedArray.byteLength;
    if (byteLength % 4 === 0) {
      return typedArray.buffer;
    }
    const paddedByteLength = mathFuncs.nextMultipleOf(byteLength, 4);
    const buffer = new ArrayBuffer(paddedByteLength);
    const targetView = new TypedArrayConstructor(buffer);
    targetView.set(typedArray);
    return buffer;
  },
  toVerticesData: (mesh) => {
    const flatVertices = mesh.vertices.flat();
    const verticesArray = new Float32Array(flatVertices);
    return verticesArray.buffer;
  }
};
var meshFactory = {
  of: (type, vertices, indices, winding) => {
    return {
      topology: type,
      vertices,
      indices,
      winding
    };
  },
  triangle: (topProportion, axis = vec3Funcs.Z) => {
    lazyDebug(LOGGER2, () => `Creating triangle mesh with top proportion ${topProportion}`);
    const axisNormalized = vec3Funcs.normalize(axis);
    const up = Math.abs(axisNormalized[1]) < 0.99 ? [0, 1, 0] : [1, 0, 0];
    const tangent = vec3Funcs.normalize(vec3Funcs.cross(up, axisNormalized));
    const bitangent = vec3Funcs.cross(axisNormalized, tangent);
    const baseY = -1;
    const topY = 1;
    const leftX = -1;
    const rightX = 1;
    const topX = leftX + (rightX - leftX) * topProportion;
    const localPoints = [
      [leftX, baseY],
      [rightX, baseY],
      [topX, topY]
    ];
    const vertices = [];
    for (const [x, y] of localPoints) {
      const vx = tangent[0] * x + bitangent[0] * y;
      const vy = tangent[1] * x + bitangent[1] * y;
      const vz = tangent[2] * x + bitangent[2] * y;
      vertices.push([vx, vy, vz]);
    }
    const indices = [[0, 1, 2]];
    return {
      topology: "triangle-list",
      vertices,
      indices,
      winding: "cw"
    };
  },
  cube: () => {
    lazyDebug(LOGGER2, () => "Creating cube mesh");
    const vertices = [
      // Front face
      [-1, -1, 1],
      // front bottom left
      [1, -1, 1],
      // front bottom right
      [1, 1, 1],
      // front top right
      [-1, 1, 1],
      // front top left
      // Back face
      [-1, -1, -1],
      // back bottom left
      [-1, 1, -1],
      // back top left
      [1, 1, -1],
      // back top right
      [1, -1, -1]
      // back bottom right
    ];
    const indices = [
      // Front
      [0, 1, 2],
      [0, 2, 3],
      // Top
      [3, 2, 6],
      [3, 6, 5],
      // Back
      [5, 6, 7],
      [5, 7, 4],
      // Bottom
      [4, 7, 1],
      [4, 1, 0],
      // Left
      [4, 0, 3],
      [4, 3, 5],
      // Right
      [1, 7, 6],
      [1, 6, 2]
    ];
    return {
      topology: "triangle-list",
      vertices,
      indices,
      winding: "cw"
    };
  },
  sphere(subdivisions) {
    lazyDebug(LOGGER2, () => `Creating sphere mesh with sub divisions ${subdivisions}`);
    const phi = (1 + Math.sqrt(5)) / 2;
    const unnormalizedVertices = [
      [-1, phi, 0],
      [1, phi, 0],
      [-1, -phi, 0],
      [1, -phi, 0],
      [0, -1, phi],
      [0, 1, phi],
      [0, -1, -phi],
      [0, 1, -phi],
      [phi, 0, -1],
      [phi, 0, 1],
      [-phi, 0, -1],
      [-phi, 0, 1]
    ];
    const vertices = unnormalizedVertices.map(vec3Funcs.normalize);
    const baseIndices = [
      [0, 11, 5],
      [0, 5, 1],
      [0, 1, 7],
      [0, 7, 10],
      [0, 10, 11],
      [1, 5, 9],
      [5, 11, 4],
      [11, 10, 2],
      [10, 7, 6],
      [7, 1, 8],
      [3, 9, 4],
      [3, 4, 2],
      [3, 2, 6],
      [3, 6, 8],
      [3, 8, 9],
      [4, 9, 5],
      [2, 4, 11],
      [6, 2, 10],
      [8, 6, 7],
      [9, 8, 1]
    ];
    const indices = [];
    const cache = /* @__PURE__ */ new Map();
    const getOrCreateMidpoint = (a, b) => {
      const key = [Math.min(a, b), Math.max(a, b)].join("|");
      if (cache.has(key)) {
        return cache.get(key);
      }
      const midpoint = vec3Funcs.midpoint(vertices[a], vertices[b]);
      const index = vertices.length;
      vertices.push(midpoint);
      cache.set(key, index);
      return index;
    };
    const subdivide = (a, b, c, depth) => {
      if (depth === 0) {
        indices.push([a, b, c]);
      } else {
        const ab = getOrCreateMidpoint(a, b);
        const bc = getOrCreateMidpoint(b, c);
        const ca = getOrCreateMidpoint(c, a);
        subdivide(a, ab, ca, depth - 1);
        subdivide(b, bc, ab, depth - 1);
        subdivide(c, ca, bc, depth - 1);
        subdivide(ab, bc, ca, depth - 1);
      }
    };
    for (const [a, b, c] of baseIndices) {
      subdivide(a, b, c, subdivisions);
    }
    return {
      topology: "triangle-list",
      vertices,
      indices,
      winding: "cw"
    };
  }
};

// src/buffer-factory.ts
var MINIMUM_BYTES_LENGTH = 16;
var VALID_BYTES_MULTIPLE = 4;
var LOGGER3 = getLogger("buffer");
var checkNotDestroyed = (state) => {
  if (state === 3 /* Destroyed */) {
    throw Error("Cannot use managed buffer after being destroyed");
  }
};
var toValidSize = (label, bytesLength) => {
  const clampedBytesLength = Math.max(MINIMUM_BYTES_LENGTH, bytesLength);
  const validSize = mathFuncs.nextMultipleOf(clampedBytesLength, VALID_BYTES_MULTIPLE);
  if (validSize > bytesLength) {
    lazyDebug(LOGGER3, () => `Increasing desired length of buffer '${label}' from ${bytesLength} to valid length ${validSize}`);
  }
  return validSize;
};
var bufferFactory = {
  ofData: (data, label, usage) => {
    lazyDebug(LOGGER3, () => `Creating buffer '${label}' of usage ${usageToString(usage)} from data of byte length ${data.byteLength}`);
    const size = toValidSize(label, data.byteLength);
    if (size > data.byteLength) {
      lazyTrace(LOGGER3, () => `Aligning buffer ${label} to new size ${size}`);
      const alignedBuffer = new ArrayBuffer(size);
      new Uint8Array(alignedBuffer).set(new Uint8Array(data));
      data = alignedBuffer;
    }
    usage |= GPUBufferUsage.COPY_DST;
    let state = 0 /* Initialized */;
    let trackedBuffer;
    return {
      get(device, queue, _encoder) {
        checkNotDestroyed(state);
        if (trackedBuffer === void 0) {
          lazyTrace(LOGGER3, () => `Creating new buffer ${label} of size ${size} and usage ${usageToString(usage)}`);
          const buffer = device.createBuffer({
            label,
            size,
            usage
          });
          lazyTrace(LOGGER3, () => `Writing data to new buffer ${label} with queue`);
          queue.writeBuffer(buffer, 0, data);
          state = 1 /* New */;
          trackedBuffer = {
            isNew: true,
            buffer,
            destroy() {
              state = 3 /* Destroyed */;
              buffer.destroy();
            }
          };
        } else {
          lazyTrace(LOGGER3, () => `Reusing buffer ${label}`);
          if (state === 1 /* New */) {
            state = 2 /* Reused */;
            trackedBuffer = {
              ...trackedBuffer,
              isNew: false
            };
          }
        }
        return trackedBuffer;
      }
    };
  },
  ofSize: (bytesLength, label, usage) => {
    lazyDebug(LOGGER3, () => `Creating buffer '${label}' of usage ${usageToString(usage)} of byte length ${bytesLength}`);
    const size = toValidSize(label, bytesLength);
    let state = 0 /* Initialized */;
    let trackedBuffer;
    return {
      get(device, _queue, _encoder) {
        checkNotDestroyed(state);
        if (trackedBuffer === void 0) {
          lazyTrace(LOGGER3, () => `Creating new buffer ${label} of size ${size} and usage ${usageToString(usage)}`);
          const buffer = device.createBuffer({
            label,
            size,
            usage
          });
          state = 1 /* New */;
          trackedBuffer = {
            buffer,
            isNew: true,
            destroy() {
              state = 3 /* Destroyed */;
              buffer.destroy();
            }
          };
        } else {
          lazyTrace(LOGGER3, () => `Reusing buffer ${label}`);
          if (state === 1 /* New */) {
            state = 2 /* Reused */;
            trackedBuffer = {
              ...trackedBuffer,
              isNew: false
            };
          }
        }
        return trackedBuffer;
      }
    };
  },
  ofResizeable: (copyDataOnResize, label, usage) => {
    lazyDebug(LOGGER3, () => `Creating resizeable buffer '${label}' of usage ${usageToString(usage)}`);
    let previousBuffer;
    let currentBuffer;
    const capacity = new Capacity(MINIMUM_BYTES_LENGTH, 1.2, 1.5);
    let previousBytesLength = capacity.capacity;
    let desiredBytesLength = 0;
    let state = 0 /* Initialized */;
    let trackedBuffer;
    if (copyDataOnResize) {
      usage |= GPUBufferUsage.COPY_SRC | GPUBufferUsage.COPY_DST;
    }
    return {
      resize(bytesLength) {
        lazyDebug(LOGGER3, () => `Resizing buffer ${label} to desired size ${desiredBytesLength}`);
        desiredBytesLength = bytesLength;
      },
      get(device, queue, encoder) {
        checkNotDestroyed(state);
        if (previousBuffer !== void 0) {
          lazyDebug(LOGGER3, () => `Destroying previous buffer ${label}`);
          previousBuffer.destroy();
          previousBuffer = void 0;
        }
        if (trackedBuffer === void 0 || desiredBytesLength > capacity.capacity) {
          previousBytesLength = capacity.capacity;
          capacity.ensureCapacity(desiredBytesLength);
          capacity.capacity = toValidSize(label, capacity.capacity);
          lazyTrace(LOGGER3, () => `Creating new buffer ${label} of size ${capacity.capacity} and usage ${usageToString(usage)}`);
          previousBuffer = currentBuffer;
          const newBuffer = currentBuffer = device.createBuffer({
            label,
            size: capacity.capacity,
            usage
          });
          state = 1 /* New */;
          trackedBuffer = {
            buffer: currentBuffer,
            isNew: true,
            destroy() {
              state = 3 /* Destroyed */;
              newBuffer.destroy();
            }
          };
          if (copyDataOnResize && previousBuffer !== void 0) {
            const copySize = Math.min(previousBytesLength, capacity.capacity);
            if (copySize > 0) {
              lazyTrace(LOGGER3, () => `Copy ${copySize} bytes of data to buffer ${label} from previous`);
              encoder.copyBufferToBuffer(previousBuffer, currentBuffer, copySize);
            }
          }
        } else if (trackedBuffer !== void 0 && state === 1 /* New */) {
          lazyTrace(LOGGER3, () => `Reusing buffer ${label}`);
          state = 2 /* Reused */;
          trackedBuffer = {
            ...trackedBuffer,
            isNew: false
          };
        }
        return trackedBuffer;
      }
    };
  },
  ofMutable: (bytesLength, label, usage) => {
    lazyDebug(LOGGER3, () => `Creating mutable buffer '${label}' of usage ${usageToString(usage)} from data of byte length ${bytesLength}`);
    const size = toValidSize(label, bytesLength);
    let state = 0 /* Initialized */;
    let trackedBuffer;
    const mutatedDataArray = [];
    return {
      mutate(data, index) {
        LOGGER3.info(`Mutating data for mutable buffer ${label}`);
        mutatedDataArray.push({ data, index });
      },
      get(device, queue, _encoder) {
        checkNotDestroyed(state);
        if (trackedBuffer === void 0) {
          lazyTrace(LOGGER3, () => `Creating new buffer ${label} of size ${size} and usage ${usageToString(usage)}`);
          const buffer2 = device.createBuffer({
            label,
            size,
            usage
          });
          state = 1 /* New */;
          trackedBuffer = {
            buffer: buffer2,
            isNew: true,
            destroy() {
              state = 3 /* Destroyed */;
              buffer2.destroy();
            }
          };
        } else {
          lazyTrace(LOGGER3, () => `Reusing buffer ${label}`);
          if (state === 1 /* New */) {
            state = 2 /* Reused */;
            trackedBuffer = {
              ...trackedBuffer,
              isNew: false
            };
          }
        }
        const { buffer } = trackedBuffer;
        for (const { data, index } of mutatedDataArray) {
          lazyTrace(LOGGER3, () => `Writing mutated data to buffer ${label} at index ${index} and length ${data.byteLength} using queue`);
          queue.writeBuffer(buffer, index, data);
        }
        mutatedDataArray.length = 0;
        return trackedBuffer;
      }
    };
  },
  ofStaged: (label, usage) => {
    lazyDebug(LOGGER3, () => `Creating staged buffer '${label}' of usage ${usageToString(usage)}`);
    const stagingLabel = `${label}-staging`;
    const backingLabel = `${label}-backing`;
    const staging = bufferFactory.ofResizeable(false, stagingLabel, GPUBufferUsage.COPY_SRC);
    const backing = bufferFactory.ofResizeable(true, backingLabel, usage | GPUBufferUsage.COPY_DST);
    let mutatedSlices = void 0;
    return {
      mutate(data, target) {
        LOGGER3.info(`Mutating data for staged buffer ${label}`);
        mutatedSlices = {
          values: data,
          copySlices: target
        };
      },
      get(device, queue, encoder) {
        const backingTrackedBuffer = backing.get(device, queue, encoder);
        if (mutatedSlices !== void 0) {
          lazyTrace(LOGGER3, () => `Staging data to buffer ${stagingLabel}`);
          const { values, copySlices } = mutatedSlices;
          const backingSizeRequired = copySlices.reduce((max, copySlice) => Math.max(max, copySlice.toIndex + copySlice.length), 0);
          lazyTrace(LOGGER3, () => `Resizing buffer ${stagingLabel} to ${values.byteLength}`);
          lazyTrace(LOGGER3, () => `Resizing buffer ${backingLabel} to ${backingSizeRequired}`);
          staging.resize(values.byteLength);
          backing.resize(backingSizeRequired);
          const stagingBuffer = staging.get(device, queue, encoder).buffer;
          const backingBuffer = backingTrackedBuffer.buffer;
          lazyTrace(LOGGER3, () => `Writing staging data of length ${values.byteLength} to buffer ${stagingLabel} using queue`);
          queue.writeBuffer(stagingBuffer, 0, values);
          for (const copySlice of copySlices) {
            const { length: length2, min, toIndex } = copySlice;
            lazyTrace(LOGGER3, () => `Copy staging data from ${stagingLabel} at index ${min} to ${backingLabel} at index ${toIndex} of length ${length2} using encoder`);
            encoder.copyBufferToBuffer(stagingBuffer, min, backingBuffer, toIndex, length2);
          }
          mutatedSlices = void 0;
        }
        return backingTrackedBuffer;
      }
    };
  }
};
var usageToString = (usage) => {
  const flagNames = [];
  if ((usage & GPUBufferUsage.COPY_DST) === GPUBufferUsage.COPY_DST) {
    flagNames.push("COPY_DST");
  }
  if ((usage & GPUBufferUsage.COPY_SRC) === GPUBufferUsage.COPY_SRC) {
    flagNames.push("COPY_SRC");
  }
  if ((usage & GPUBufferUsage.INDEX) === GPUBufferUsage.INDEX) {
    flagNames.push("INDEX");
  }
  if ((usage & GPUBufferUsage.INDIRECT) === GPUBufferUsage.INDIRECT) {
    flagNames.push("INDIRECT");
  }
  if ((usage & GPUBufferUsage.MAP_READ) === GPUBufferUsage.MAP_READ) {
    flagNames.push("MAP_READ");
  }
  if ((usage & GPUBufferUsage.MAP_WRITE) === GPUBufferUsage.MAP_WRITE) {
    flagNames.push("MAP_WRITE");
  }
  if ((usage & GPUBufferUsage.QUERY_RESOLVE) === GPUBufferUsage.QUERY_RESOLVE) {
    flagNames.push("QUERY_RESOLVE");
  }
  if ((usage & GPUBufferUsage.STORAGE) === GPUBufferUsage.STORAGE) {
    flagNames.push("STORAGE");
  }
  if ((usage & GPUBufferUsage.UNIFORM) === GPUBufferUsage.UNIFORM) {
    flagNames.push("UNIFORM");
  }
  if ((usage & GPUBufferUsage.VERTEX) === GPUBufferUsage.VERTEX) {
    flagNames.push("VERTEX");
  }
  return `[${flagNames.join(", ")}]`;
};

// src/buffer-formats.ts
var isUserFormatScalar = (userFormat) => userFormat.scalar !== void 0;
var isUserFormatVec2 = (userFormat) => userFormat.vec2 !== void 0;
var isUserFormatVec3 = (userFormat) => userFormat.vec3 !== void 0;
var isUserFormatVec4 = (userFormat) => userFormat.vec4 !== void 0;
var isUserFormatEntityIndex = (userFormat) => userFormat.entityIndexFromResizeableEntityCache !== void 0;

// src/strides.ts
var strideFuncs = {
  ofVertexFormat: (format) => {
    switch (format) {
      case "float16":
        return 2;
      case "float32":
        return 4;
      case "sint16":
        return 2;
      case "sint32":
        return 4;
      case "sint8":
        return 1;
      case "snorm16":
        return 2;
      case "snorm8":
        return 1;
      case "uint16":
        return 2;
      case "uint32":
        return 4;
      case "uint8":
        return 1;
      case "unorm16":
        return 2;
      case "unorm8":
        return 1;
    }
  },
  dimensionMultipleOfUserFormat: (userFormat) => {
    if (isUserFormatScalar(userFormat)) {
      return 1;
    } else if (isUserFormatVec2(userFormat)) {
      return 2;
    } else if (isUserFormatVec3(userFormat)) {
      return 3;
    } else if (isUserFormatVec4(userFormat)) {
      return 4;
    }
    throw Error(`Cannot find dimension of user format ${JSON.stringify(userFormat)}`);
  },
  dimensionMultipleOfLayout: (dimension) => {
    switch (dimension) {
      case "scalar":
        return 1;
      case "vec2":
        return 2;
      case "vec3":
        return 3;
      case "vec4":
        return 4;
    }
  },
  ofLayout: (layout) => strideFuncs.dimensionMultipleOfLayout(layout.dimension) * strideFuncs.ofVertexFormat(layout.datumType),
  ofFormatLayout: (formatLayout) => {
    return formatLayout.reduce((acc, layout) => acc + strideFuncs.ofLayout(layout), 0);
  },
  ofUserFormat: (userFormat) => {
    const datumStride = strideFuncs.ofVertexFormat(userFormat.datumType);
    const multiple = strideFuncs.dimensionMultipleOfUserFormat(userFormat);
    return datumStride * multiple;
  },
  ofFormatMarshall: (format) => {
    return format.reduce((acc, userFormat) => acc + strideFuncs.ofUserFormat(userFormat), 0);
  }
};

// src/data-extractor.ts
var LOGGER4 = getLogger("data");
var createDatumSetters = () => {
  const dataViewCallCreator = callCreatorOf();
  const map = /* @__PURE__ */ new Map();
  const setInt8 = dataViewCallCreator("setInt8");
  const setUint8 = dataViewCallCreator("setUint8");
  const setInt16 = dataViewCallCreator("setInt16");
  const setUint16 = dataViewCallCreator("setUint16");
  const setInt32 = dataViewCallCreator("setInt32");
  const setUint32 = dataViewCallCreator("setUint32");
  const setFloat32 = dataViewCallCreator("setFloat32");
  map.set("sint8", setInt8);
  map.set("snorm8", setInt8);
  map.set("uint8", setUint8);
  map.set("unorm8", setUint8);
  map.set("sint16", setInt16);
  map.set("snorm16", setInt16);
  map.set("uint16", setUint16);
  map.set("unorm16", setUint16);
  map.set("sint32", setInt32);
  map.set("uint32", setUint32);
  map.set("float16", (target, offset, value, littleEndian) => setUint16(target, offset, floatFuncs.float32ToFloat16(value), littleEndian));
  map.set("float32", setFloat32);
  return map;
};
var datumSetters = createDatumSetters();
var LITTLE_ENDIAN = true;
var dataExtractorFactory = {
  of: (marshallFormats) => {
    lazyDebug(LOGGER4, () => "Create data extractor");
    let totalStride = 0;
    const dataBridges = [];
    for (const userFormat of marshallFormats) {
      lazyTrace(LOGGER4, () => `Create ref from user format ${JSON.stringify(userFormat)}`);
      const userFormatRef = toMarshalledRef(userFormat);
      const { datumType } = userFormat;
      const datumStride = strideFuncs.ofVertexFormat(datumType);
      const stride = userFormatRef.datumCount * datumStride;
      const datumSetter = datumSetters.get(datumType);
      if (datumSetter === void 0) {
        throw Error(`Cannot set datum of type ${datumType}`);
      }
      const datumOffset = totalStride;
      dataBridges.push((offset, instance, dataView) => {
        const values = userFormatRef.valuesOf(instance);
        if (typeof values === "number") {
          lazyTrace(LOGGER4, () => `Setting value ${values} at offset ${offset + datumOffset}`);
          datumSetter(dataView, offset + datumOffset, values, LITTLE_ENDIAN);
        } else {
          for (const value of values) {
            lazyTrace(LOGGER4, () => `Setting value ${value} at offset ${offset + datumOffset}`);
            datumSetter(dataView, offset + datumOffset, value, LITTLE_ENDIAN);
            offset += datumStride;
          }
        }
      });
      totalStride += stride;
    }
    return {
      extract(instances) {
        lazyDebug(LOGGER4, () => `Extract data from ${instances.length} instances`);
        const totalSize = instances.length * totalStride;
        lazyTrace(LOGGER4, () => `Creating data view to hold extracted instance data of size ${totalSize}`);
        const buffer = new ArrayBuffer(totalSize);
        const dataView = new DataView(buffer);
        instances.forEach((instance, index) => {
          lazyTrace(LOGGER4, () => `Extracting data from instance ${JSON.stringify(instance)}`);
          dataBridges.forEach((extractor) => extractor(index * totalStride, instance, dataView));
        });
        return buffer;
      }
    };
  }
};
var toMarshalledRef = (userFormat) => {
  if (isUserFormatScalar(userFormat)) {
    return ofScalar(userFormat.scalar);
  } else if (isUserFormatVec2(userFormat)) {
    return Array.isArray(userFormat.vec2) ? ofVecSplit(userFormat.vec2) : ofVecDirect(userFormat.vec2, 2);
  } else if (isUserFormatVec3(userFormat)) {
    return Array.isArray(userFormat.vec3) ? ofVecSplit(userFormat.vec3) : ofVecDirect(userFormat.vec3, 3);
  } else if (isUserFormatVec4(userFormat)) {
    return Array.isArray(userFormat.vec4) ? ofVecSplit(userFormat.vec4) : ofVecDirect(userFormat.vec4, 4);
  } else if (isUserFormatEntityIndex(userFormat)) {
    const { entityIndexFromResizeableEntityCache: { key, target } } = userFormat;
    return ofEntityIndex(key, target);
  } else {
    throw Error(`Cannot create format reference from ${JSON.stringify(userFormat)}`);
  }
};
var ofScalar = (path) => {
  lazyDebug(LOGGER4, () => `Creating scalar ref from path '${path}'`);
  const refPath = toRefPath(path);
  return {
    datumCount: 1,
    valuesOf: (instance) => {
      const value = valueOfInstanceAtPath(instance, refPath);
      lazyTrace(LOGGER4, () => `Found value ${JSON.stringify(value)} at path '${path}'`);
      return value;
    }
  };
};
var ofVecDirect = (path, vecLength) => {
  lazyDebug(LOGGER4, () => `Creating vec direct ref from path '${path}'`);
  const refPath = toRefPath(path);
  return {
    datumCount: vecLength,
    valuesOf: (instance) => {
      const value = valueAtPath(instance, refPath, 0);
      if (Array.isArray(value)) {
        lazyTrace(LOGGER4, () => `Found array ${JSON.stringify(value)} at path '${path}'`);
        return value;
      }
      throw Error(`Value ${JSON.stringify(value)} at path ${refPath} is not an array`);
    }
  };
};
var ofVecSplit = (paths) => {
  lazyDebug(LOGGER4, () => `Creating vec split ref from path '${JSON.stringify(paths)}'`);
  const refPaths = paths.map(toRefPath);
  return {
    datumCount: paths.length,
    valuesOf: (instance) => {
      const values = refPaths.map((refPath) => valueOfInstanceAtPath(instance, refPath));
      lazyTrace(LOGGER4, () => `Found array ${JSON.stringify(values)} at paths '${JSON.stringify(paths)}'`);
      return values;
    }
  };
};
var ofEntityIndex = (key, target) => {
  lazyDebug(LOGGER4, () => `Creating entity index ref from key '${key}'`);
  const refPath = toRefPath(key);
  return {
    datumCount: 1,
    valuesOf(instance) {
      const id = valueAtPath(instance, refPath, 0);
      if (typeof id !== "string") {
        throw Error(`Value found at path ${key} must be a string but was a ${typeof id}`);
      } else {
        const index = target.indexOf(id);
        if (index === -1) {
          lazyWarn(LOGGER4, () => `ID at path ${key} was '${id}' and could not be found, index falling back to -1`);
        }
        lazyTrace(LOGGER4, () => `Found entity index ${index} for id '${id}'`);
        return index;
      }
    }
  };
};
var toRefPath = (path) => {
  const parts = path.split(".");
  const refPath = parts.map((part) => stringFuncs.canBePositiveInt(part) ? Number(part) : part);
  lazyTrace(LOGGER4, () => `Converted path '${path}' to ref path ${JSON.stringify(refPath)}`);
  return refPath;
};
var valueAtPath = (input, refPath, pathIndex) => {
  if (pathIndex > refPath.length) {
    throw Error(`Cannot use index ${pathIndex} larger than reference path. Path: ${refPath}. Input: ${JSON.stringify(input)}`);
  }
  if (pathIndex === refPath.length) {
    lazyTrace(LOGGER4, () => `Found value ${input} at path ${JSON.stringify(refPath)}`);
    return input;
  }
  const indexValue = refPath[pathIndex];
  if (typeof input !== "object" || input === null) {
    throw Error(`Cannot index field ${input} with index ${indexValue}. Path: ${refPath}. Input: ${JSON.stringify(input)}`);
  }
  if (typeof indexValue === "string" || typeof indexValue === "number") {
    return valueAtPath(input[indexValue], refPath, pathIndex + 1);
  }
  throw Error(`Cannot index using non-integer or string field ${indexValue}. Path: ${refPath}. Input: ${JSON.stringify(input)}`);
};
var valueOfInstanceAtPath = (instance, refPath) => {
  const value = valueAtPath(instance, refPath, 0);
  if (typeof value === "number") {
    return value;
  }
  throw Error(`Value ${JSON.stringify(value)} at path ${refPath} is not a number`);
};

// src/buffer-resources.ts
var LOGGER5 = getLogger("buffer");
var bufferResourcesFactory = {
  ofMesh: (name, mesh) => {
    LOGGER5.debug(`Creating mesh buffer ${name}`);
    const indices = bufferFactory.ofData(meshFuncs.toIndicesData(mesh), `${name}-indices`, GPUBufferUsage.INDEX);
    const vertices = bufferFactory.ofData(meshFuncs.toVerticesData(mesh), `${name}-vertices`, GPUBufferUsage.VERTEX);
    return {
      indices,
      vertices
    };
  },
  ofUniformAndIn