Bob.alpha was ignored by the canvas renderer, only working in WebGL. This has now been fixed.

Author: photonstorm

src/gameobjects/blitter/BlitterCanvasRenderer.js

@@ -30,6 +30,8 @@ var BlitterCanvasRenderer = function (renderer, src, interpolationPercentage, ca
         return;
     }
 
+    var ctx = renderer.gameContext;
+
     //  Alpha
 
     var alpha = camera.alpha * src.alpha;
@@ -49,7 +51,6 @@ var BlitterCanvasRenderer = function (renderer, src, interpolationPercentage, ca
 
     renderer.setBlendMode(src.blendMode);
 
-    var ctx = renderer.gameContext;
     var cameraScrollX = src.x - camera.scrollX * src.scrollFactorX;
     var cameraScrollY = src.y - camera.scrollY * src.scrollFactorY;
 
@@ -73,6 +74,18 @@ var BlitterCanvasRenderer = function (renderer, src, interpolationPercentage, ca
         var fx = 1;
         var fy = 1;
 
+        var bobAlpha = bob.alpha * alpha;
+
+        if (bobAlpha === 0)
+        {
+            continue;
+        }
+        else if (renderer.currentAlpha !== bobAlpha)
+        {
+            renderer.currentAlpha = bobAlpha;
+            ctx.globalAlpha = bobAlpha;
+        }
+    
         if (!flip)
         {
             renderer.blitImage(dx + bob.x + cameraScrollX, dy + bob.y + cameraScrollY, bob.frame);