threex
Version:
Game Extensions for three.js http://www.threejsgames.com/extensions/
92 lines (84 loc) • 3.07 kB
HTML
<script src='../../../vendor/three.js/build/three.min.js'></script>
<script id="fragmentShaderMinimal" type="x-shader/x-fragment">
void main( void ) {
gl_FragColor = vec4( 0, 1, 1, 1 );
}
</script>
<script id="fragmentShader" type="x-shader/x-fragment">
// test
uniform float time;
varying vec2 vUv;
void main( void ) {
vec2 position = -1.0 + 2.0 * vUv;
float red = abs( sin( position.x * position.y + time / 5.0 ) );
float green = abs( sin( position.x * position.y + time / 4.0 ) );
float blue = abs( sin( position.x * position.y + time / 3.0 ) );
gl_FragColor = vec4( red, green, blue, 1.0 );
}
</script>
<script id="vertexShader" type="x-shader/x-vertex">
varying vec2 vUv;
void main(){
vUv = uv;
vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );
gl_Position = projectionMatrix * mvPosition;
}
</script>
<body style='margin: 0px; background-color: #bbbbbb; overflow: hidden;'><script>
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
var onRenderFcts= [];
var scene = new THREE.Scene();
var camera = new THREE.Camera()
camera.position.z = 1;
//////////////////////////////////////////////////////////////////////////////////
// add an object and make it move //
//////////////////////////////////////////////////////////////////////////////////
// define the material
var uniforms = {
time : { type: "f", value: 1.0 },
}
var vertexShader = document.getElementById('vertexShader')
var fragmentShader = document.getElementById('fragmentShader')
var material = new THREE.ShaderMaterial( {
uniforms : uniforms,
vertexShader : vertexShader.textContent,
fragmentShader : fragmentShader.textContent
});
// update the time
var clock = new THREE.Clock();
onRenderFcts.push(function(){
var delta = clock.getDelta();
material.uniforms.time.value += delta * 5;
})
// build a object3d with it and add it the scene
// - note the PlaneGeometry 2,2
// - this is in relation with our camera
var geometry = new THREE.PlaneGeometry(2,2);
var mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
//////////////////////////////////////////////////////////////////////////////////
// render the scene //
//////////////////////////////////////////////////////////////////////////////////
onRenderFcts.push(function(){
renderer.render( scene, camera );
})
//////////////////////////////////////////////////////////////////////////////////
// loop runner //
//////////////////////////////////////////////////////////////////////////////////
var lastTimeMsec= null
requestAnimationFrame(function animate(nowMsec){
// keep looping
requestAnimationFrame( animate );
// measure time
lastTimeMsec = lastTimeMsec || nowMsec-1000/60
var deltaMsec = Math.min(200, nowMsec - lastTimeMsec)
lastTimeMsec = nowMsec
// call each update function
onRenderFcts.forEach(function(onRenderFct){
onRenderFct(deltaMsec/1000, nowMsec/1000)
})
})
</script></body>