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| 1 | +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> |
| 2 | +<html> |
| 3 | + <head> |
| 4 | + <script id="vs" type="x-shader/x-vertex"> |
| 5 | + varying vec2 vUv; |
| 6 | + void main() |
| 7 | + { |
| 8 | + // passing texture to fragment shader |
| 9 | + vUv = uv; |
| 10 | + |
| 11 | + gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0); |
| 12 | + } |
| 13 | + </script> |
| 14 | + |
| 15 | + <script id="fs" type="x-shader/x-fragment"> |
| 16 | + varying vec2 vUv; |
| 17 | + void main() { |
| 18 | + gl_FragColor = vec4(vUv.x, vUv.y, 0.0, 1.0); |
| 19 | + } |
| 20 | + </script> |
| 21 | + |
| 22 | + <script type="text/javascript" src="../lib/three.js"></script> |
| 23 | + |
| 24 | + <script type="text/javascript"> |
| 25 | + var scene = null; |
| 26 | + var camera = null; |
| 27 | + var renderer = null; |
| 28 | + |
| 29 | + var material = null; |
| 30 | + var cube = null; |
| 31 | + |
| 32 | + function init() { |
| 33 | + renderer = new THREE.WebGLRenderer({ |
| 34 | + canvas: document.getElementById('mainCanvas') |
| 35 | + }); |
| 36 | + scene = new THREE.Scene(); |
| 37 | + |
| 38 | + camera = new THREE.OrthographicCamera(-5, 5, 3.75, -3.75, 0.1, 100); |
| 39 | + camera.position.set(5, 15, 25); |
| 40 | + camera.lookAt(new THREE.Vector3(0, 0, 0)); |
| 41 | + scene.add(camera); |
| 42 | + |
| 43 | + var light = new THREE.DirectionalLight(); |
| 44 | + light.position.set(3, 2, 5); |
| 45 | + scene.add(light); |
| 46 | + |
| 47 | + // shader material |
| 48 | + material = new THREE.ShaderMaterial({ |
| 49 | + vertexShader: document.getElementById('vs').textContent, |
| 50 | + fragmentShader: document.getElementById('fs').textContent |
| 51 | + }); |
| 52 | + |
| 53 | + cube = new THREE.Mesh(new THREE.CubeGeometry(2, 2, 2), material); |
| 54 | + cube.position.x = 2; |
| 55 | + scene.add(cube); |
| 56 | + |
| 57 | + draw(); |
| 58 | + } |
| 59 | + |
| 60 | + function draw() { |
| 61 | + cube.rotation.y += 0.01; |
| 62 | + if (cube.rotation.y > Math.PI * 2) { |
| 63 | + cube.rotation.y -= Math.PI * 2; |
| 64 | + } |
| 65 | + |
| 66 | + renderer.render(scene, camera); |
| 67 | + |
| 68 | + requestAnimationFrame(draw); |
| 69 | + } |
| 70 | + </script> |
| 71 | + </head> |
| 72 | + |
| 73 | + <body onload="init()"> |
| 74 | + <canvas id="mainCanvas" width="400px" height="300px" ></canvas> |
| 75 | + </body> |
| 76 | +</html> |
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