Disabling antialias when you don't need it is always good ;)

examples/webgl_particles_billboards.html

@@ -70,7 +70,7 @@
 
 				sprite = ImageUtils.loadTexture( "textures/sprites/circle.png" );
 
-				for ( i = 0; i < 5000; i++ ) {
+				for ( i = 0; i < 10000; i++ ) {
 
 					x = 2000 * Math.random() - 1000;
 					y = 2000 * Math.random() - 1000;
@@ -95,7 +95,7 @@
 				light.position.z = 1;
 				scene.addLight( light );
 
-				renderer = new THREE.WebGLRenderer( { clearAlpha: 1 });
+				renderer = new THREE.WebGLRenderer( { antialias: false, clearAlpha: 1 });
 				renderer.setSize( window.innerWidth, window.innerHeight );
 				container.appendChild( renderer.domElement );
 

examples/webgl_particles_billboards_colors.html

@@ -99,7 +99,7 @@
 				light.position.z = 1;
 				scene.addLight( light );
 
-				renderer = new THREE.WebGLRenderer( { clearAlpha: 1 });
+				renderer = new THREE.WebGLRenderer( { antialias: false, clearAlpha: 1 });
 				renderer.setSize( window.innerWidth, window.innerHeight );
 				container.appendChild( renderer.domElement );
 

examples/webgl_particles_random.html

@@ -97,7 +97,7 @@
 
 				}
 
-				renderer = new THREE.WebGLRenderer();
+				renderer = new THREE.WebGLRenderer( { antialias: false } );
 				renderer.setSize( window.innerWidth, window.innerHeight );
 				container.appendChild( renderer.domElement );
 

examples/webgl_particles_sprites.html

@@ -102,7 +102,7 @@
 
 				}
 
-				renderer = new THREE.WebGLRenderer( { clearAlpha: 1 });
+				renderer = new THREE.WebGLRenderer( { antialias: false, clearAlpha: 1 });
 				renderer.setSize( window.innerWidth, window.innerHeight );
 				container.appendChild( renderer.domElement );