javascript
/
three.js
şunun yansıması https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - materials - manual mipmaping</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
			body {
				color: #aaa;
				font-family:Monospace;
				font-size:13px;
				text-align:center;

				background-color: #000;
				margin: 0px;
				overflow: hidden;
			}

			#info {
				position: absolute;
				top: 0px; width: 100%;
				padding: 5px;
				z-index:100;
			}

			.lbl { color:#fff; font-size:16px; font-weight:bold; position: absolute; bottom:0px; z-index:100; text-shadow:#000 1px 1px 1px; background-color:rgba(0,0,0,0.85); padding:1em }
			#lbl_left { text-align:left; left:0px }
			#lbl_right { text-align:left; right:0px }

			.g { color:#aaa }
			.c { color:#fa0 }

			a { color:red }

		</style>
	</head>

	<body>
		<div id="info">
			<a href="http://threejs.org" target="_blank">three.js</a> - texture manual mipmapping example
			- painting by <a href="http://en.wikipedia.org/wiki/Basket_of_Fruit_%28Caravaggio%29">Caravaggio</a>
		</div>

		<div id="lbl_left" class="lbl">
		Floor <span class="g">(128x128)</span><br/>
		mag: <span class="c">Linear</span><br/>
		min: <span class="c">LinearMipMapLinear</span><br/>
		<br/>
		Painting <span class="g">(748x600)</span><br/>
		mag: <span class="c">Linear</span><br/>
		min: <span class="c">Linear</span>
		</div>

		<div id="lbl_right" class="lbl">
		Floor <br/>
		mag: <span class="c">Nearest</span><br/>
		min: <span class="c">NearestMipMapNearestFilter</span><br/>
		<br/>
		Painting <br/>
		mag: <span class="c">Nearest</span><br/>
		min: <span class="c">Nearest</span>
		</div>
        
		<script src="../build/three.min.js"></script>

		<script src="js/Detector.js"></script>
		<script src="js/libs/stats.min.js"></script>

		<script>

		    if (!Detector.webgl) Detector.addGetWebGLMessage();

		    var SCREEN_WIDTH = window.innerWidth;
		    var SCREEN_HEIGHT = window.innerHeight;

		    var container, stats;

		    var camera, scene, scene2, renderer;

		    var mouseX = 0, mouseY = 0;

		    var windowHalfX = window.innerWidth / 2;
		    var windowHalfY = window.innerHeight / 2;

		    init();
		    animate();


		    function init() {

		        container = document.createElement('div');
		        document.body.appendChild(container);

		        camera = new THREE.PerspectiveCamera(35, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 5000);
		        camera.position.z = 1500;

		        scene = new THREE.Scene();
		        scene.fog = new THREE.Fog(0x000000, 1500, 4000);

		        scene2 = new THREE.Scene();
		        scene2.fog = scene.fog;

		        // GROUND

		        function mipmap(size, color) {
		            var imageCanvas = document.createElement("canvas"),
                        context = imageCanvas.getContext("2d");

		            imageCanvas.width = imageCanvas.height = size;

		            context.fillStyle = "#444";
		            context.fillRect(0, 0, size, size);

		            context.fillStyle = color;
		            context.fillRect(0, 0, size / 2, size / 2);
		            context.fillRect(size / 2, size / 2, size / 2, size / 2);
		            return imageCanvas;
		        }
		        var canvas = mipmap(128, '#f00');
		        var textureCanvas = new THREE.Texture(canvas, THREE.UVMapping, THREE.RepeatWrapping, THREE.RepeatWrapping);
		        textureCanvas.mipmaps = [];
		        textureCanvas.mipmaps[0] = canvas;
		        textureCanvas.mipmaps[1] = mipmap(64, '#0f0');
		        textureCanvas.mipmaps[2] = mipmap(32, '#00f');
		        textureCanvas.mipmaps[3] = mipmap(16, '#400');
		        textureCanvas.mipmaps[4] = mipmap(8, '#040');
		        textureCanvas.mipmaps[5] = mipmap(4, '#004');
		        textureCanvas.mipmaps[6] = mipmap(2, '#044');
		        textureCanvas.mipmaps[7] = mipmap(1, '#404');

		        materialCanvas = new THREE.MeshBasicMaterial({ map: textureCanvas });

		        textureCanvas.needsUpdate = true;
		        textureCanvas.repeat.set(1000, 1000);

		        canvas = mipmap(128, '#f00');
		        var textureCanvas2 = new THREE.Texture(canvas, THREE.UVMapping, THREE.RepeatWrapping, THREE.RepeatWrapping, THREE.NearestFilter, THREE.NearestMipMapNearestFilter);
		        textureCanvas2.mipmaps = [];
		        textureCanvas2.mipmaps[0] = canvas;
		        textureCanvas2.mipmaps[1] = mipmap(64, '#0f0');
		        textureCanvas2.mipmaps[2] = mipmap(32, '#00f');
		        textureCanvas2.mipmaps[3] = mipmap(16, '#400');
		        textureCanvas2.mipmaps[4] = mipmap(8, '#040');
		        textureCanvas2.mipmaps[5] = mipmap(4, '#004');
		        textureCanvas2.mipmaps[6] = mipmap(2, '#044');
		        textureCanvas2.mipmaps[7] = mipmap(1, '#404');
		        materialCanvas2 = new THREE.MeshBasicMaterial({ color: 0xffccaa, map: textureCanvas2 });

		        textureCanvas2.needsUpdate = true;
		        textureCanvas2.repeat.set(1000, 1000);

		        var geometry = new THREE.PlaneGeometry(100, 100);

		        var meshCanvas = new THREE.Mesh(geometry, materialCanvas);
		        meshCanvas.rotation.x = -Math.PI / 2;
		        meshCanvas.scale.set(1000, 1000, 1000);

		        var meshCanvas2 = new THREE.Mesh(geometry, materialCanvas2);
		        meshCanvas2.rotation.x = -Math.PI / 2;
		        meshCanvas2.scale.set(1000, 1000, 1000);


		        // PAINTING

		        var callbackPainting = function () {

		            var image = texturePainting.image;

		            texturePainting2.image = image;
		            texturePainting2.needsUpdate = true;

		            scene.add(meshCanvas);
		            scene2.add(meshCanvas2);

		            var geometry = new THREE.PlaneGeometry(100, 100);
		            var mesh = new THREE.Mesh(geometry, materialPainting);
		            var mesh2 = new THREE.Mesh(geometry, materialPainting2);

		            addPainting(scene, mesh);
		            addPainting(scene2, mesh2);

		            function addPainting(zscene, zmesh) {

		                zmesh.scale.x = image.width / 100;
		                zmesh.scale.y = image.height / 100;

		                zscene.add(zmesh);

		                var meshFrame = new THREE.Mesh(geometry, new THREE.MeshBasicMaterial({ color: 0x000000, polygonOffset: true, polygonOffsetFactor: 1, polygonOffsetUnits: 5 }));
		                meshFrame.scale.x = 1.1 * image.width / 100;
		                meshFrame.scale.y = 1.1 * image.height / 100;

		                zscene.add(meshFrame);

		                var meshShadow = new THREE.Mesh(geometry, new THREE.MeshBasicMaterial({ color: 0x000000, opacity: 0.75, transparent: true }));
		                meshShadow.position.y = -1.1 * image.height / 2;
		                meshShadow.position.z = -1.1 * image.height / 2;
		                meshShadow.rotation.x = -Math.PI / 2;
		                meshShadow.scale.x = 1.1 * image.width / 100;
		                meshShadow.scale.y = 1.1 * image.height / 100;
		                zscene.add(meshShadow);

		                var floorHeight = -1.117 * image.height / 2;
		                meshCanvas.position.y = meshCanvas2.position.y = floorHeight;

		            }


		        };

		        var texturePainting = THREE.ImageUtils.loadTexture("textures/758px-Canestra_di_frutta_(Caravaggio).jpg", THREE.UVMapping, callbackPainting),
					texturePainting2 = new THREE.Texture(),
					materialPainting = new THREE.MeshBasicMaterial({ color: 0xffffff, map: texturePainting }),
					materialPainting2 = new THREE.MeshBasicMaterial({ color: 0xffccaa, map: texturePainting2 });

		        texturePainting2.minFilter = texturePainting2.magFilter = THREE.NearestFilter;
		        texturePainting.minFilter = texturePainting.magFilter = THREE.LinearFilter;


		        renderer = new THREE.WebGLRenderer({ antialias: true });
		        renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
		        renderer.setClearColor(scene.fog.color, 1);
		        renderer.autoClear = false;

		        renderer.domElement.style.position = "relative";
		        container.appendChild(renderer.domElement);

		        stats = new Stats();
		        stats.domElement.style.position = 'absolute';
		        stats.domElement.style.top = '0px';
		        stats.domElement.style.zIndex = 100;
		        //container.appendChild( stats.domElement );

		        document.addEventListener('mousemove', onDocumentMouseMove, false);

		    }


		    function onDocumentMouseMove(event) {

		        mouseX = (event.clientX - windowHalfX);
		        mouseY = (event.clientY - windowHalfY);

		    }


		    function animate() {

		        requestAnimationFrame(animate);

		        render();
		        stats.update();

		    }

		    function render() {

		        camera.position.x += (mouseX - camera.position.x) * .05;
		        camera.position.y += (-(mouseY - 200) - camera.position.y) * .05;

		        camera.lookAt(scene.position);

		        renderer.enableScissorTest(false);
		        renderer.clear();
		        renderer.enableScissorTest(true);

		        //renderer.setViewport( 0, 0, SCREEN_WIDTH/2, SCREEN_HEIGHT );
		        renderer.setScissor(0, 0, SCREEN_WIDTH / 2 - 2, SCREEN_HEIGHT);
		        renderer.render(scene, camera);


		        //renderer.setViewport( SCREEN_WIDTH/2, 0, SCREEN_WIDTH/2, SCREEN_HEIGHT );
		        renderer.setScissor(SCREEN_WIDTH / 2, 0, SCREEN_WIDTH / 2 - 2, SCREEN_HEIGHT);
		        renderer.render(scene2, camera);


		    }

		</script>

	</body>
</html>