81 lines
2.1 KiB
JavaScript
81 lines
2.1 KiB
JavaScript
import {
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Cartesian2,
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clone,
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defaultValue,
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defined,
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Scene,
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} from "@cesium/engine";
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import createCanvas from "./createCanvas.js";
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import getWebGLStub from "./getWebGLStub.js";
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function createScene(options) {
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options = defaultValue(options, {});
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// Render tests can be difficult to debug. Let the caller choose a larger
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// canvas size temporarily. By stepping through a render test, you can see
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// what the camera sees after each render call.
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const debugWidth = window.debugCanvasWidth;
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const debugHeight = defaultValue(
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window.debugCanvasHeight,
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window.debugCanvasWidth
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);
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// save the canvas so we don't try to clone an HTMLCanvasElement
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const canvas = defined(options.canvas)
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? options.canvas
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: createCanvas(debugWidth, debugHeight);
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options.canvas = undefined;
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options = clone(options, true);
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options.canvas = canvas;
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options.contextOptions = defaultValue(options.contextOptions, {});
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const contextOptions = options.contextOptions;
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contextOptions.webgl = defaultValue(contextOptions.webgl, {});
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contextOptions.webgl.antialias = defaultValue(
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contextOptions.webgl.antialias,
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false
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);
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contextOptions.webgl.stencil = defaultValue(
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contextOptions.webgl.stencil,
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true
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);
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if (!!window.webglStub) {
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contextOptions.getWebGLStub = getWebGLStub;
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}
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const scene = new Scene(options);
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scene.highDynamicRange = false;
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if (!!window.webglValidation) {
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const context = scene.context;
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context.validateShaderProgram = true;
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context.validateFramebuffer = true;
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context.logShaderCompilation = true;
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context.throwOnWebGLError = true;
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}
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// Add functions for test
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scene.destroyForSpecs = function () {
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const canvas = this.canvas;
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this.destroy();
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document.body.removeChild(canvas);
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};
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scene.renderForSpecs = function (time) {
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this.initializeFrame();
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this.render(time);
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};
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scene.pickForSpecs = function () {
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this.pick(new Cartesian2(0, 0));
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};
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scene.rethrowRenderErrors = defaultValue(options.rethrowRenderErrors, true);
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return scene;
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}
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export default createScene;
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