From 3e04cf18dce490a3543d5d1eece82bbec8c024ad Mon Sep 17 00:00:00 2001
From: alteredq <postfilter@gmail.com>
Date: Fri, 9 Sep 2011 21:08:29 +0200
Subject: [PATCH] Normalized Gaussian blur coefficients.

Also shortened a life cycle for particles in shapes example. Still it gets about 10 fps slower with time :/
---
 examples/js/ShaderExtras.js          | 42 +++++++++++++---------------
 examples/webgl_particles_shapes.html |  2 +-
 2 files changed, 21 insertions(+), 23 deletions(-)

diff --git a/examples/js/ShaderExtras.js b/examples/js/ShaderExtras.js
index 5f766676..5f3479c1 100644
--- a/examples/js/ShaderExtras.js
+++ b/examples/js/ShaderExtras.js
@@ -891,18 +891,17 @@ THREE.ShaderExtras = {
 
 				"vec4 sum = vec4( 0.0 );",
 
-				"sum += texture2D( tDiffuse, vec2( vUv.x - 4.0 * h, vUv.y ) ) * 0.05;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x - 3.0 * h, vUv.y ) ) * 0.09;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x - 2.0 * h, vUv.y ) ) * 0.12;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x - 1.0 * h, vUv.y ) ) * 0.15;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, 		  	vUv.y ) ) * 0.16;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x + 1.0 * h, vUv.y ) ) * 0.15;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x + 2.0 * h, vUv.y ) ) * 0.12;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x + 3.0 * h, vUv.y ) ) * 0.09;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x + 4.0 * h, vUv.y ) ) * 0.05;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x - 4.0 * h, vUv.y ) ) * 0.051;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x - 3.0 * h, vUv.y ) ) * 0.0918;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x - 2.0 * h, vUv.y ) ) * 0.12245;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x - 1.0 * h, vUv.y ) ) * 0.1531;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, 		  	vUv.y ) ) * 0.1633;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x + 1.0 * h, vUv.y ) ) * 0.1531;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x + 2.0 * h, vUv.y ) ) * 0.12245;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x + 3.0 * h, vUv.y ) ) * 0.0918;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x + 4.0 * h, vUv.y ) ) * 0.051;",
 
-				"gl_FragColor.xyz = sum.xyz/0.98;", // normalize
-				"gl_FragColor.a = 1.;",
+				"gl_FragColor = sum;",
 
 			"}"
 
@@ -944,18 +943,17 @@ THREE.ShaderExtras = {
 
 				"vec4 sum = vec4( 0.0 );",
 
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 4.0 * v ) ) * 0.05;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 3.0 * v ) ) * 0.09;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 2.0 * v ) ) * 0.12;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 1.0 * v ) ) * 0.15;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y			  ) ) * 0.16;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 1.0 * v ) ) * 0.15;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 2.0 * v ) ) * 0.12;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 3.0 * v ) ) * 0.09;",
-				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 4.0 * v ) ) * 0.05;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 4.0 * v ) ) * 0.051;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 3.0 * v ) ) * 0.0918;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 2.0 * v ) ) * 0.12245;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y - 1.0 * v ) ) * 0.1531;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y			  ) ) * 0.1633;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 1.0 * v ) ) * 0.1531;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 2.0 * v ) ) * 0.12245;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 3.0 * v ) ) * 0.0918;",
+				"sum += texture2D( tDiffuse, vec2( vUv.x, vUv.y + 4.0 * v ) ) * 0.051;",
 
-				"gl_FragColor.xyz = sum.xyz/0.98;",
-				"gl_FragColor.a = 1.;",
+				"gl_FragColor = sum;",
 
 			"}"
 
diff --git a/examples/webgl_particles_shapes.html b/examples/webgl_particles_shapes.html
index 7d63263f..6263c336 100644
--- a/examples/webgl_particles_shapes.html
+++ b/examples/webgl_particles_shapes.html
@@ -460,7 +460,7 @@
 				emitterpos = new THREE.Vector3( 0, 0, 0 );
 
 				sparksEmitter.addInitializer( new SPARKS.Position( new SPARKS.PointZone( emitterpos ) ) );
-				sparksEmitter.addInitializer( new SPARKS.Lifetime( 1, 40 ));
+				sparksEmitter.addInitializer( new SPARKS.Lifetime( 1, 15 ));
 				sparksEmitter.addInitializer( new SPARKS.Target( null, setTargetParticle ) );