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@@ -34,6 +34,7 @@
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<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - terrain demo. <a href="geometry_terrain.html">generate another</a></div>
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<script type="text/javascript" src="js/Stats.js"></script>
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+ <script type="text/javascript" src="js/ImprovedNoise.js"></script>
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<script type="text/javascript" src="../build/Three.js"></script>
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@@ -41,80 +42,6 @@
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<script type="text/javascript">
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- var Perlin = function () {
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-
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- // http://mrl.nyu.edu/~perlin/noise/
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-
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- var p = [151,160,137,91,90,15,131,13,201,95,96,53,194,233,7,225,140,36,103,30,69,142,8,99,37,240,21,10,
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- 23,190,6,148,247,120,234,75,0,26,197,62,94,252,219,203,117,35,11,32,57,177,33,88,237,149,56,87,
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- 174,20,125,136,171,168,68,175,74,165,71,134,139,48,27,166,77,146,158,231,83,111,229,122,60,211,
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- 133,230,220,105,92,41,55,46,245,40,244,102,143,54,65,25,63,161,1,216,80,73,209,76,132,187,208,
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- 89,18,169,200,196,135,130,116,188,159,86,164,100,109,198,173,186,3,64,52,217,226,250,124,123,5,
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- 202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,58,17,182,189,28,42,223,183,170,213,119,
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- 248,152,2,44,154,163,70,221,153,101,155,167,43,172,9,129,22,39,253,19,98,108,110,79,113,224,232,
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- 178,185,112,104,218,246,97,228,251,34,242,193,238,210,144,12,191,179,162,241,81,51,145,235,249,
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- 14,239,107,49,192,214,31,181,199,106,157,184,84,204,176,115,121,50,45,127,4,150,254,138,236,205,
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- 93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180];
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-
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- for (var i=0; i < 256 ; i++) {
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-
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- p[256+i] = p[i];
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-
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- }
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-
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- function fade(t) {
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-
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- return t * t * t * (t * (t * 6 - 15) + 10);
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-
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- }
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-
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- function lerp(t, a, b) {
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-
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- return a + t * (b - a);
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-
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- }
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-
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- function grad(hash, x, y, z) {
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-
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- var h = hash & 15;
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- var u = h < 8 ? x : y, v = h < 4 ? y : h == 12 || h == 14 ? x : z;
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- return ((h&1) == 0 ? u : -u) + ((h&2) == 0 ? v : -v);
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-
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- }
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-
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- return {
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-
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- noise: function (x, y, z) {
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-
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- var floorX = Math.floor(x), floorY = Math.floor(y), floorZ = Math.floor(z);
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-
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- var X = floorX & 255, Y = floorY & 255, Z = floorZ & 255;
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-
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- x -= floorX;
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- y -= floorY;
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- z -= floorZ;
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-
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- var xMinus1 = x -1, yMinus1 = y - 1, zMinus1 = z - 1;
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-
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- var u = fade(x), v = fade(y), w = fade(z);
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-
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- var A = p[X]+Y, AA = p[A]+Z, AB = p[A+1]+Z, B = p[X+1]+Y, BA = p[B]+Z, BB = p[B+1]+Z;
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-
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- return lerp(w, lerp(v, lerp(u, grad(p[AA], x, y, z),
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- grad(p[BA], xMinus1, y, z)),
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- lerp(u, grad(p[AB], x, yMinus1, z),
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- grad(p[BB], xMinus1, yMinus1, z))),
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- lerp(v, lerp(u, grad(p[AA+1], x, y, zMinus1),
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- grad(p[BA+1], xMinus1, y, z-1)),
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- lerp(u, grad(p[AB+1], x, yMinus1, zMinus1),
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- grad(p[BB+1], xMinus1, yMinus1, zMinus1))));
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-
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- }
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- }
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- }
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-
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- //
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-
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var SCREEN_WIDTH = window.innerWidth, SCREEN_HEIGHT = window.innerHeight;
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var container, stats;
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@@ -171,18 +98,18 @@
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scene.add(mesh);
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renderer = new THREE.CanvasRenderer();
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- renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
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+ renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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container.innerHTML = "";
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- container.appendChild(renderer.domElement);
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+ container.appendChild( renderer.domElement );
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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container.appendChild(stats.domElement);
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- document.addEventListener('mousemove', onDocumentMouseMove, false);
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+ document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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}
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@@ -218,7 +145,7 @@
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image = context.getImageData( 0, 0, width, height );
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data = image.data;
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- var perlin = new Perlin();
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+ var perlin = new ImprovedNoise();
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var size = width * height;
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var quality = 2;
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