Fix incorrect lighting with rotated cameras.

src/gameobjects/components/Lighting.js

@@ -45,6 +45,7 @@ var Lighting = {
      * @webglOnly
      * @since 3.90.0
      * @param {boolean} enable - `true` to use lighting, or `false` to disable it.
+     * @return {this} This Game Object instance.
      */
     setLighting: function (enable)
     {

src/renderer/webgl/renderNodes/BatchHandlerQuadLight.js

@@ -184,13 +184,17 @@ var BatchHandlerQuadLight = new Class({
 
             var lightName = 'uLights[' + i + '].';
 
-            cameraMatrix.transformPoint(light.x, light.y, vec);
+            cameraMatrix.transformPoint(
+                light.x - (camera.scrollX * light.scrollFactorX * camera.zoom),
+                light.y - (camera.scrollY * light.scrollFactorY * camera.zoom),
+                vec
+            );
 
             program.setUniform(
                 lightName + 'position',
                 [
-                    vec.x - (camera.scrollX * light.scrollFactorX * camera.zoom),
+                    vec.x,
-                    height - (vec.y - (camera.scrollY * light.scrollFactorY * camera.zoom)),
+                    height - (vec.y),
                     light.z * camera.zoom
                 ]
             );
@@ -289,6 +293,7 @@ var BatchHandlerQuadLight = new Class({
         currentBatchEntry.unit = 2;
 
         // Normal map rotation
+        normalMapRotation = -normalMapRotation - currentContext.camera.rotation;
         if (this._normalMapRotation !== normalMapRotation)
         {
             // Complete the entire batch if the normal map rotation changes.
@@ -299,9 +304,8 @@ var BatchHandlerQuadLight = new Class({
 
             if (normalMapRotation)
             {
-                var rot = -normalMapRotation;
+                var c = Math.cos(normalMapRotation);
-                var c = Math.cos(rot);
+                var s = Math.sin(normalMapRotation);
-                var s = Math.sin(rot);
 
                 inverseRotationMatrix[1] = s;
                 inverseRotationMatrix[3] = -s;

src/renderer/webgl/renderNodes/BatchHandlerTileSpriteLight.js

@@ -209,6 +209,7 @@ var BatchHandlerTileSpriteLight = new Class({
         currentBatchEntry.unit = 2;
 
         // Normal map rotation
+        normalMapRotation = -normalMapRotation - currentContext.camera.rotation;
         if (this._normalMapRotation !== normalMapRotation)
         {
             // Complete the entire batch if the normal map rotation changes.
@@ -219,9 +220,8 @@ var BatchHandlerTileSpriteLight = new Class({
 
             if (normalMapRotation)
             {
-                var rot = -normalMapRotation;
+                var c = Math.cos(normalMapRotation);
-                var c = Math.cos(rot);
+                var s = Math.sin(normalMapRotation);
-                var s = Math.sin(rot);
 
                 inverseRotationMatrix[1] = s;
                 inverseRotationMatrix[3] = -s;

src/renderer/webgl/renderNodes/BatchHandlerTriFlatLight.js

@@ -179,13 +179,17 @@ var BatchHandlerTriFlatLight = new Class({
 
             var lightName = 'uLights[' + i + '].';
 
-            cameraMatrix.transformPoint(light.x, light.y, vec);
+            cameraMatrix.transformPoint(
+                light.x - camera.scrollX * light.scrollFactorX * camera.zoom,
+                light.y - camera.scrollY * light.scrollFactorY * camera.zoom,
+                vec
+            );
 
             program.setUniform(
                 lightName + 'position',
                 [
-                    vec.x - (camera.scrollX * light.scrollFactorX * camera.zoom),
+                    vec.x,
-                    height - (vec.y - (camera.scrollY * light.scrollFactorY * camera.zoom))
+                    height - vec.y
                 ]
             );
             program.setUniform(