Optimised WebGL terrain demo.

examples/geometry_terrain_gl.html

@@ -87,9 +87,9 @@
 
 				}
 
-				geometry.computeNormals();
-				geometry.computeVertexNormals();
-				geometry.sortFacesByMaterial();
+				// geometry.computeNormals();
+				// geometry.computeVertexNormals();
+				// geometry.sortFacesByMaterial();
 
 				texture = new THREE.Texture( generateTexture( data, worldWidth, worldDepth ), new THREE.UVMapping(), THREE.ClampToEdgeWrapping, THREE.ClampToEdgeWrapping );
 

examples/js/ImprovedNoise.js

@@ -2,18 +2,19 @@
 
 var ImprovedNoise = function () {
 
-	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,
-		 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,
-		 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,
-		 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,
-		 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,
-		 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,
-		 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,
-		 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,
-		 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,
-		 93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180];
-
-	for (var i=0; i < 256 ; i++) {
+	var p = Int8Array ? new Int8Array() : [];
+	[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,
+	 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,
+	 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,
+	 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,
+	 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,
+	 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,
+	 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,
+	 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,
+	 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,
+	 93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180].forEach( function ( v, i ) { p[ i ] = v; } );
+
+	for ( var i = 0; i < 256; i ++ ) {
 
 		p[256+i] = p[i];
 
@@ -43,7 +44,7 @@ var ImprovedNoise = function () {
 
 		noise: function (x, y, z) {
 
-			var floorX = Math.floor(x), floorY = Math.floor(y), floorZ = Math.floor(z);
+			var floorX = ~~x, floorY = ~~y, floorZ = ~~z;
 
 			var X = floorX & 255, Y = floorY & 255, Z = floorZ & 255;