kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
145 lines (140 loc) • 24.8 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));
var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));
var _get2 = _interopRequireDefault(require("@babel/runtime/helpers/get"));
var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _core = require("@deck.gl/core");
function _createForOfIteratorHelper(r, e) { var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (!t) { if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) { t && (r = t); var _n = 0, F = function F() {}; return { s: F, n: function n() { return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] }; }, e: function e(r) { throw r; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var o, a = !0, u = !1; return { s: function s() { t = t.call(r); }, n: function n() { var r = t.next(); return a = r.done, r; }, e: function e(r) { u = !0, o = r; }, f: function f() { try { a || null == t["return"] || t["return"](); } finally { if (u) throw o; } } }; }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
function _callSuper(t, o, e) { return o = (0, _getPrototypeOf2["default"])(o), (0, _possibleConstructorReturn2["default"])(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], (0, _getPrototypeOf2["default"])(t).constructor) : o.apply(t, e)); }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
function _superPropGet(t, e, r, o) { var p = (0, _get2["default"])((0, _getPrototypeOf2["default"])(1 & o ? t.prototype : t), e, r); return 2 & o ? function (t) { return p.apply(r, t); } : p; }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { (0, _defineProperty2["default"])(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; } // SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project
/**
* Exposes private members of LightingEffect that we need to access.
* These are runtime-accessible but TypeScript marks them as private.
*/
/** Extended shadow module props with our custom field. */
/**
* Insert text before a target string in shader source.
*/
function insertBefore(source, target, textToInsert) {
var at = source.indexOf(target);
if (at < 0) return source;
return source.slice(0, at) + textToInsert + source.slice(at);
}
/**
* Create a patched shadow module that adds `outputUniformShadow` to the
* shadow UBO. When true, `shadow_getShadowWeight` returns 1.0 (full
* uniform shadow) instead of sampling the shadow map. Used for nighttime
* rendering to avoid partial shadows from below.
*/
function createCustomShadowModule() {
if (!_core.shadow) return null;
var mod = _objectSpread({}, _core.shadow);
var uboField = ' float outputUniformShadow;\n';
mod.vs = insertBefore(mod.vs, '} shadow;', uboField);
mod.fs = insertBefore(mod.fs, '} shadow;', uboField);
mod.fs = insertBefore(mod.fs, 'vec4 rgbaDepth = texture(shadowMap, position.xy);', 'if (shadow.outputUniformShadow > 0.5) return 1.0;\n ');
mod.uniformTypes = _objectSpread(_objectSpread({}, _core.shadow.uniformTypes), {}, {
outputUniformShadow: 'f32'
});
var originalGetUniforms = _core.shadow.getUniforms;
mod.getUniforms = function () {
var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var context = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var u = originalGetUniforms(opts, context);
u.outputUniformShadow = opts.outputUniformShadow ? 1.0 : 0.0;
return u;
};
return mod;
}
var CustomShadowModule = createCustomShadowModule();
/**
* Custom LightingEffect for kepler.gl.
*
* Extends deck.gl's LightingEffect with:
* - A patched shadow module with `outputUniformShadow` for uniform shadow
* during nighttime (avoids partial shadows from below).
* - getShaderModuleProps override that always provides dummyShadowMap
* to prevent "Bad texture binding" errors when shadows are disabled.
*/
var CustomDeckLightingEffect = /*#__PURE__*/function (_LightingEffect) {
function CustomDeckLightingEffect(props) {
var _this;
(0, _classCallCheck2["default"])(this, CustomDeckLightingEffect);
_this = _callSuper(this, CustomDeckLightingEffect, [props]);
(0, _defineProperty2["default"])(_this, "outputUniformShadow", void 0);
_this.outputUniformShadow = false;
return _this;
}
(0, _inherits2["default"])(CustomDeckLightingEffect, _LightingEffect);
return (0, _createClass2["default"])(CustomDeckLightingEffect, [{
key: "_private",
get: function get() {
return this;
}
}, {
key: "setup",
value: function setup(context) {
this.context = context;
var device = context.device,
deck = context.deck;
if (this._private.shadow && !this._private.dummyShadowMap) {
this._private._createShadowPasses(device);
deck._addDefaultShaderModule(CustomShadowModule || _core.shadow);
this._private.dummyShadowMap = device.createTexture({
width: 1,
height: 1
});
}
}
}, {
key: "cleanup",
value: function cleanup(context) {
var _iterator = _createForOfIteratorHelper(this._private.shadowPasses),
_step;
try {
for (_iterator.s(); !(_step = _iterator.n()).done;) {
var shadowPass = _step.value;
shadowPass["delete"]();
}
} catch (err) {
_iterator.e(err);
} finally {
_iterator.f();
}
this._private.shadowPasses.length = 0;
if (this._private.dummyShadowMap) {
this._private.dummyShadowMap.destroy();
this._private.dummyShadowMap = null;
context.deck._removeDefaultShaderModule(CustomShadowModule || _core.shadow);
}
}
}, {
key: "getShaderModuleProps",
value: function getShaderModuleProps(layer, otherShaderModuleProps) {
var props = _superPropGet(CustomDeckLightingEffect, "getShaderModuleProps", this, 3)([layer, otherShaderModuleProps]);
if (props.shadow && !props.shadow.dummyShadowMap && this._private.dummyShadowMap) {
props.shadow.dummyShadowMap = this._private.dummyShadowMap;
}
if (props.shadow) {
props.shadow.outputUniformShadow = this.outputUniformShadow;
}
return props;
}
}]);
}(_core.LightingEffect);
var _default = exports["default"] = CustomDeckLightingEffect;
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When true, `shadow_getShadowWeight` returns 1.0 (full\n * uniform shadow) instead of sampling the shadow map. Used for nighttime\n * rendering to avoid partial shadows from below.\n */\nfunction createCustomShadowModule(): ShaderModule | null {\n  if (!shadow) return null;\n\n  const mod = {...shadow} as Record<string, any>;\n\n  const uboField = '  float outputUniformShadow;\\n';\n  mod.vs = insertBefore(mod.vs, '} shadow;', uboField);\n  mod.fs = insertBefore(mod.fs, '} shadow;', uboField);\n\n  mod.fs = insertBefore(\n    mod.fs,\n    'vec4 rgbaDepth = texture(shadowMap, position.xy);',\n    'if (shadow.outputUniformShadow > 0.5) return 1.0;\\n  '\n  );\n\n  mod.uniformTypes = {\n    ...shadow.uniformTypes,\n    outputUniformShadow: 'f32'\n  };\n\n  const originalGetUniforms = shadow.getUniforms as (\n    opts: Record<string, unknown>,\n    prevUniforms: Record<string, unknown>\n  ) => Record<string, unknown>;\n  mod.getUniforms = (opts: CustomShadowProps = {}, context = {}) => {\n    const u = originalGetUniforms(opts, context);\n    u.outputUniformShadow = opts.outputUniformShadow ? 1.0 : 0.0;\n    return u;\n  };\n\n  return mod as unknown as ShaderModule;\n}\n\nconst CustomShadowModule = createCustomShadowModule();\n\n/**\n * Custom LightingEffect for kepler.gl.\n *\n * Extends deck.gl's LightingEffect with:\n * - A patched shadow module with `outputUniformShadow` for uniform shadow\n *   during nighttime (avoids partial shadows from below).\n * - getShaderModuleProps override that always provides dummyShadowMap\n *   to prevent \"Bad texture binding\" errors when shadows are disabled.\n */\nclass CustomDeckLightingEffect extends LightingEffect {\n  outputUniformShadow: boolean;\n\n  private get _private(): LightingEffectPrivate {\n    return this as unknown as LightingEffectPrivate;\n  }\n\n  constructor(props) {\n    super(props);\n    this.outputUniformShadow = false;\n  }\n\n  setup(context) {\n    this.context = context;\n    const {device, deck} = context;\n    if (this._private.shadow && !this._private.dummyShadowMap) {\n      this._private._createShadowPasses(device);\n      deck._addDefaultShaderModule(CustomShadowModule || shadow);\n      this._private.dummyShadowMap = device.createTexture({width: 1, height: 1});\n    }\n  }\n\n  cleanup(context) {\n    for (const shadowPass of this._private.shadowPasses) {\n      shadowPass.delete();\n    }\n    this._private.shadowPasses.length = 0;\n    if (this._private.dummyShadowMap) {\n      this._private.dummyShadowMap.destroy();\n      this._private.dummyShadowMap = null;\n      context.deck._removeDefaultShaderModule(CustomShadowModule || shadow);\n    }\n  }\n\n  getShaderModuleProps(layer, otherShaderModuleProps) {\n    const props = super.getShaderModuleProps(layer, otherShaderModuleProps);\n\n    if (\n      props.shadow &&\n      !(props.shadow as CustomShadowProps).dummyShadowMap &&\n      this._private.dummyShadowMap\n    ) {\n      (props.shadow as CustomShadowProps).dummyShadowMap = this._private.dummyShadowMap;\n    }\n\n    if (props.shadow) {\n      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