lume
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var __esDecorate = (this && this.__esDecorate) || function (ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {
function accept(f) { if (f !== void 0 && typeof f !== "function") throw new TypeError("Function expected"); return f; }
var kind = contextIn.kind, key = kind === "getter" ? "get" : kind === "setter" ? "set" : "value";
var target = !descriptorIn && ctor ? contextIn["static"] ? ctor : ctor.prototype : null;
var descriptor = descriptorIn || (target ? Object.getOwnPropertyDescriptor(target, contextIn.name) : {});
var _, done = false;
for (var i = decorators.length - 1; i >= 0; i--) {
var context = {};
for (var p in contextIn) context[p] = p === "access" ? {} : contextIn[p];
for (var p in contextIn.access) context.access[p] = contextIn.access[p];
context.addInitializer = function (f) { if (done) throw new TypeError("Cannot add initializers after decoration has completed"); extraInitializers.push(accept(f || null)); };
var result = (0, decorators[i])(kind === "accessor" ? { get: descriptor.get, set: descriptor.set } : descriptor[key], context);
if (kind === "accessor") {
if (result === void 0) continue;
if (result === null || typeof result !== "object") throw new TypeError("Object expected");
if (_ = accept(result.get)) descriptor.get = _;
if (_ = accept(result.set)) descriptor.set = _;
if (_ = accept(result.init)) initializers.unshift(_);
}
else if (_ = accept(result)) {
if (kind === "field") initializers.unshift(_);
else descriptor[key] = _;
}
}
if (target) Object.defineProperty(target, contextIn.name, descriptor);
done = true;
};
var __runInitializers = (this && this.__runInitializers) || function (thisArg, initializers, value) {
var useValue = arguments.length > 2;
for (var i = 0; i < initializers.length; i++) {
value = useValue ? initializers[i].call(thisArg, value) : initializers[i].call(thisArg);
}
return useValue ? value : void 0;
};
import { numberAttribute, element } from '@lume/element';
import { PerspectiveCamera as ThreePerspectiveCamera } from 'three/src/cameras/PerspectiveCamera.js';
import { Camera } from './Camera.js';
import { autoDefineElements } from '../LumeConfig.js';
import { defaultScenePerspective } from '../constants.js';
// TODO auto-adjust position of three camera based on scene.perspective relative to element's origin. See Scene.perspective.
/**
* @class PerspectiveCamera
*
* Defines a viewport into the 3D scene as will be seen on screen.
*
* A perspective camera is very similar to a camera in the real world: it has a
* field of view (fov) such that more things in the world are visible further away from
* the camera, while less can fit into view closer to the camera.
*
* <live-code id="example"></live-code>
* <script>
* example.content = perspectiveCameraExample
* </script>
*
* @extends Camera
*/
let PerspectiveCamera = (() => {
let _classDecorators = [element('lume-perspective-camera', autoDefineElements)];
let _classDescriptor;
let _classExtraInitializers = [];
let _classThis;
let _classSuper = Camera;
let _fov_decorators;
let _fov_initializers = [];
let _fov_extraInitializers = [];
var PerspectiveCamera = class extends _classSuper {
static { _classThis = this; }
static {
const _metadata = typeof Symbol === "function" && Symbol.metadata ? Object.create(_classSuper[Symbol.metadata] ?? null) : void 0;
_fov_decorators = [numberAttribute];
__esDecorate(null, null, _fov_decorators, { kind: "field", name: "fov", static: false, private: false, access: { has: obj => "fov" in obj, get: obj => obj.fov, set: (obj, value) => { obj.fov = value; } }, metadata: _metadata }, _fov_initializers, _fov_extraInitializers);
__esDecorate(null, _classDescriptor = { value: _classThis }, _classDecorators, { kind: "class", name: _classThis.name, metadata: _metadata }, null, _classExtraInitializers);
PerspectiveCamera = _classThis = _classDescriptor.value;
if (_metadata) Object.defineProperty(_classThis, Symbol.metadata, { enumerable: true, configurable: true, writable: true, value: _metadata });
__runInitializers(_classThis, _classExtraInitializers);
}
/**
* @property {number} fov
*
* *attribute*
*
* Default: `0`
*
* The camera's field of view angle, in degrees, when the [`zoom`](#zoom)
* level is `1`.
*
* A value of `0` means automatic fov based on the current Scene's
* [`.perspective`](../core/Scene#perspective), matching the behavior of [CSS
* `perspective`](https://developer.mozilla.org/en-US/docs/Web/CSS/perspective).
*/
fov = __runInitializers(this, _fov_initializers, 0);
connectedCallback() {
super.connectedCallback();
this.createEffect(() => {
if (this.fov !== 0) {
this.three.fov = this.fov;
this.three.updateProjectionMatrix();
this.needsUpdate();
return;
}
// AUTO FOV //////////////////////////
// Uses the scene `perspective` to match behavior of CSS `perspective`
const perspective = this.scene?.perspective ?? defaultScenePerspective;
const sceneSize = this.scene?.calculatedSize ?? { x: 1, y: 1, z: 0 };
// This math is what sets the FOV of the default camera so that a
// viewport-sized plane will fit exactly within the view when it is
// positioned at the world origin 0,0,0, as described in the
// `perspective` property's description.
// For more details: https://discourse.threejs.org/t/269/28
this.three.fov = (180 * (2 * Math.atan(sceneSize.y / 2 / perspective))) / Math.PI;
////////////////////////////
this.three.updateProjectionMatrix();
this.needsUpdate();
});
this.createEffect(() => {
// Any value other than zero means the user supplied an aspect
// ratio manually. Stop auto-aspect in that case.
if (this.aspect !== 0) {
this.three.aspect = this.aspect;
this.three.updateProjectionMatrix();
this.needsUpdate();
return;
}
// AUTO ASPECT /////////////////////////////
const sceneSize = this.scene?.calculatedSize || { x: 1, y: 1 };
// '|| 1' in case of a 0 or NaN (f.e. 0 / 0 == NaN)
this.three.aspect = sceneSize.x / sceneSize.y || 1;
////////////////////////////
this.three.updateProjectionMatrix();
this.needsUpdate();
});
this.createEffect(() => {
this.three.near = this.near;
this.three.updateProjectionMatrix();
this.needsUpdate();
});
this.createEffect(() => {
this.three.far = this.far;
this.three.updateProjectionMatrix();
this.needsUpdate();
});
this.createEffect(() => {
this.three.zoom = this.zoom;
this.three.updateProjectionMatrix();
this.needsUpdate();
});
}
makeThreeObject3d() {
return new ThreePerspectiveCamera(75, 16 / 9, 1, 1000);
}
constructor() {
super(...arguments);
__runInitializers(this, _fov_extraInitializers);
}
};
return PerspectiveCamera = _classThis;
})();
export { PerspectiveCamera };
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