Put back the pink square method to allow for partial screen border occlusion in opengl

src/renderers/WebGLRenderer.js

@@ -3536,11 +3536,11 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			// screen cull 
 			
-			//if(	_lensFlare.hasVertexTexture ||
-			if( screenPositionPixels[ 0 ] > 0 &&
+			if(	_lensFlare.hasVertexTexture ||
+			  ( screenPositionPixels[ 0 ] > 0 &&
 				screenPositionPixels[ 0 ] < _viewportWidth &&
 				screenPositionPixels[ 1 ] > 0 &&
-				screenPositionPixels[ 1 ] < _viewportHeight ) {
+				screenPositionPixels[ 1 ] < _viewportHeight )) {
 
 
 				// save current RGB to temp texture

src/renderers/WebGLShaders.js

@@ -593,17 +593,20 @@ THREE.ShaderLib = {
 				
 				"if( renderType == 2 ) {",
 
-					"float visibility = texture2D( occlusionMap, vec2( 0.1, 0.1 )).a +",
-									   "texture2D( occlusionMap, vec2( 0.5, 0.1 )).a +",
-									   "texture2D( occlusionMap, vec2( 0.9, 0.1 )).a +",
-									   "texture2D( occlusionMap, vec2( 0.9, 0.5 )).a +",
-									   "texture2D( occlusionMap, vec2( 0.9, 0.9 )).a +",
-									   "texture2D( occlusionMap, vec2( 0.5, 0.9 )).a +",
-									   "texture2D( occlusionMap, vec2( 0.1, 0.9 )).a +",
-									   "texture2D( occlusionMap, vec2( 0.1, 0.5 )).a +",
-									   "texture2D( occlusionMap, vec2( 0.5, 0.5 )).a;",
-
-					"vVisibility = ( 1.0 - visibility / 9.0 );",
+					"vec4 visibility = texture2D( occlusionMap, vec2( 0.1, 0.1 )) +",
+									  "texture2D( occlusionMap, vec2( 0.5, 0.1 )) +",
+									  "texture2D( occlusionMap, vec2( 0.9, 0.1 )) +",
+									  "texture2D( occlusionMap, vec2( 0.9, 0.5 )) +",
+									  "texture2D( occlusionMap, vec2( 0.9, 0.9 )) +",
+									  "texture2D( occlusionMap, vec2( 0.5, 0.9 )) +",
+									  "texture2D( occlusionMap, vec2( 0.1, 0.9 )) +",
+									  "texture2D( occlusionMap, vec2( 0.1, 0.5 )) +",
+									  "texture2D( occlusionMap, vec2( 0.5, 0.5 ));",
+
+					"vVisibility = (       visibility.r / 9.0 ) *",
+					              "( 1.0 - visibility.g / 9.0 ) *",
+					              "(       visibility.b / 9.0 ) *", 
+					              "( 1.0 - visibility.a / 9.0 );",
 
 					"pos.x = cos( rotation ) * position.x - sin( rotation ) * position.y;",
 					"pos.y = sin( rotation ) * position.x + cos( rotation ) * position.y;",
@@ -633,8 +636,7 @@ THREE.ShaderLib = {
 			
 				"if( renderType == 0 ) {",
 							
-					"gl_FragColor = vec4( texture2D( map, vUV ).rgb, 0.0 );",
-//					"gl_FragColor = vec4( 1.0, 0.0, 1.0, 0.0 );",
+					"gl_FragColor = vec4( 1.0, 0.0, 1.0, 0.0 );",
 				
 				// restore