zhangyupeng
/
Babylon.js


			
				
					
						
						
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							<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<title>Shaders Library</title>
	<script src="../assets/refs/dat.gui.min.js"></script>
	<script src="../dist/preview release/babylon.max.js"></script>
	<script src="../dist/postProcessesLibrary/babylon.asciiArtPostProcess.js"></script>
	<script src="../dist/postProcessesLibrary/babylon.digitalRainPostProcess.js"></script>

	<style>
		html, body {
			width: 100%;
			height: 100%;
			padding: 0;
			margin: 0;
			overflow: hidden;
		}

		#renderCanvas {
			width: 100%;
			height: 100%;
		}

		#fps {
			position: absolute;
			background-color: black;
			border: 2px solid red;
			text-align: center;
			font-size: 16px;
			color: white;
			top: 15px;
			left: 10px;
			width: 60px;
			height: 20px;
		}
	</style>
</head>
<body>
	<div id="fps">0</div>
	<canvas id="renderCanvas"></canvas>
	
	<script>
		if (BABYLON.Engine.isSupported()) {
			var canvas = document.getElementById("renderCanvas");
			var engine = new BABYLON.Engine(canvas, true);
			var divFps = document.getElementById("fps");

			var scene = new BABYLON.Scene(engine);

			var camera = new BABYLON.ArcRotateCamera("Camera", Math.PI / 2, Math.PI / 6, 50, BABYLON.Vector3.Zero(), scene);
			camera.attachControl(canvas, true);
			camera.minZ = 0.1;

			// Lights
			var hemisphericLight = new BABYLON.HemisphericLight("hemi", new BABYLON.Vector3(0, 1, 0), scene);
			
			// Create meshes
			var sphere = BABYLON.Mesh.CreateSphere("sphere", 48, 30.0, scene);			

			// Register a render loop to repeatedly render the scene
			engine.runRenderLoop(function () {
				scene.render();
				divFps.innerHTML = engine.getFps().toFixed() + " fps";
			});

			// Resize
			window.addEventListener("resize", function () {
				engine.resize();
			});

			var aaPostProcess = new BABYLON.AsciiArtPostProcess("AsciiArt", camera);
			var drPostProcess = new BABYLON.DigitalRainPostProcess("AsciiArt", camera);

			//camera.detachPostProcess(aaPostProcess);
			camera.detachPostProcess(drPostProcess);

			var gui = new dat.GUI();
			var options = {
				postProcess: "asciiArt"
			}

			gui.add(options, 'postProcess', ['asciiArt', 'digitalRain']).onFinishChange(function () {
				
				switch (options.postProcess) {
					case "asciiArt":
						camera.detachPostProcess(aaPostProcess);
						camera.detachPostProcess(drPostProcess);
						camera.attachPostProcess(aaPostProcess);
						break;
					case "digitalRain":
						camera.detachPostProcess(aaPostProcess);
						camera.detachPostProcess(drPostProcess);
						camera.attachPostProcess(drPostProcess);
						break;
				}
			});
		}

	</script>
</body>
</html>