Light picker has option to be enabled and disabled

src/away3d/materials/MaterialBase.as

@@ -432,7 +432,7 @@ package away3d.materials
 		 */
 		arcane function renderPass(index:uint, renderable:IRenderable, stage3DProxy:Stage3DProxy, entityCollector:EntityCollector, viewProjection:Matrix3D):void
 		{
-			if (_lightPicker)
+			if (_lightPicker && _lightPicker.enabled)
 				_lightPicker.collectLights(renderable, entityCollector);
 
 			var pass:MaterialPassBase = _passes[index];

src/away3d/materials/MultiPassMaterialBase.as

@@ -731,7 +731,7 @@
 		 */
 		protected function get numLights():int
 		{
-			return _lightPicker? _lightPicker.numLightProbes + _lightPicker.numDirectionalLights + _lightPicker.numPointLights +
+			return _lightPicker && _lightPicker.enabled ? _lightPicker.numLightProbes + _lightPicker.numDirectionalLights + _lightPicker.numPointLights +
 				_lightPicker.numCastingDirectionalLights + _lightPicker.numCastingPointLights : 0;
 		}
 
@@ -740,7 +740,7 @@
 		 */
 		private function get numNonCasters():int
 		{
-			return _lightPicker? _lightPicker.numLightProbes + _lightPicker.numDirectionalLights + _lightPicker.numPointLights : 0;
+			return _lightPicker && _lightPicker.enabled? _lightPicker.numLightProbes + _lightPicker.numDirectionalLights + _lightPicker.numPointLights : 0;
 		}
 
 		/**

src/away3d/materials/lightpickers/LightPickerBase.as

@@ -5,8 +5,9 @@ package away3d.materials.lightpickers
 	import away3d.core.traverse.*;
 	import away3d.library.assets.*;
 	import away3d.lights.*;
-
-	import flash.geom.*;
+
+    import flash.events.Event;
+    import flash.geom.*;
 
 	use namespace arcane;
 
@@ -31,6 +32,7 @@ package away3d.materials.lightpickers
 		protected var _castingDirectionalLights:Vector.<DirectionalLight>;
 		protected var _lightProbes:Vector.<LightProbe>;
 		protected var _lightProbeWeights:Vector.<Number>;
+		protected var _enabled:Boolean=true;
 
 		/**
 		 * Creates a new LightPickerBase object.
@@ -193,6 +195,19 @@ package away3d.materials.lightpickers
 			for (i = 0; i < _numLightProbes; ++i)
 				_lightProbeWeights[i] *= total;
 		}
-
-	}
+
+        /**
+         * Flag indicating whether to consider this light picker during pass
+         */
+        public function get enabled():Boolean {
+            return _enabled;
+        }
+
+        public function set enabled(value:Boolean):void {
+            if(_enabled!=value) {
+                _enabled = value;
+                dispatchEvent(new Event(Event.CHANGE));
+            }
+        }
+    }
 }

src/away3d/materials/passes/LightingPass.as

@@ -124,7 +124,7 @@ package away3d.materials.passes
 			var numPointLights:int = _numPointLights;
 			var numLightProbes:int = _numLightProbes;
 
-			if (_lightPicker) {
+			if (_lightPicker && _lightPicker.enabled) {
 				_numDirectionalLights = calculateNumDirectionalLights(_lightPicker.numDirectionalLights);
 				_numPointLights = calculateNumPointLights(_lightPicker.numPointLights);
 				_numLightProbes = calculateNumProbes(_lightPicker.numLightProbes);

src/away3d/materials/passes/MaterialPassBase.as

@@ -535,7 +535,7 @@ package away3d.materials.passes
 		 */
 		protected function updateLights():void
 		{
-		
+
 		}
 
 		/**

src/away3d/materials/passes/ShadowCasterPass.as

@@ -56,7 +56,7 @@ package away3d.materials.passes
 			var numPointLights:int;
 			var numDirectionalLights:int;
 
-			if (_lightPicker) {
+			if (_lightPicker  && _lightPicker.enabled) {
 				numPointLights = _lightPicker.numCastingPointLights > 0? 1 : 0;
 				numDirectionalLights = _lightPicker.numCastingDirectionalLights > 0? 1 : 0;
 			} else {

src/away3d/materials/passes/SuperShaderPass.as

@@ -164,7 +164,7 @@ package away3d.materials.passes
 		override protected function updateLights():void
 		{
 			//			super.updateLights();
-			if (_lightPicker && !_ignoreLights) {
+			if (_lightPicker && _lightPicker.enabled && !_ignoreLights ) {
 				_numPointLights = _lightPicker.numPointLights;
 				_numDirectionalLights = _lightPicker.numDirectionalLights;
 				_numLightProbes = _lightPicker.numLightProbes;