CCEffectsTest - Add a test of clipping combined with effects

A clipping node renders into an effect node with an attached pixellate effect.

Author: Thayer J Andrews

cocos2d-ui-tests/tests/CCEffectsTest.m

@@ -856,6 +856,41 @@ -(void)setupSpriteColorTest
     }
 }
 
+-(void)setupClipWithEffectsTest
+{
+    self.subTitle = @"Clipping + Effects Test.";
+	
+	CGSize size = [CCDirector sharedDirector].designSize;
+    
+    CCNodeGradient *grad = [CCNodeGradient nodeWithColor:[CCColor redColor] fadingTo:[CCColor blueColor] alongVector:ccp(1, 0)];
+    
+	CCNode *stencil = [CCSprite spriteWithImageNamed:@"Sprites/grossini.png"];
+	stencil.position = ccp(size.width/2, size.height/2);
+	stencil.scale = 4.0;
+	[stencil runAction:[CCActionRepeatForever actionWithAction:[CCActionRotateBy actionWithDuration:1.0 angle:90.0]]];
+	
+	CCClippingNode *clip = [CCClippingNode clippingNodeWithStencil:stencil];
+	clip.alphaThreshold = 0.5;
+    
+    CCEffectNode* parent = [CCEffectNode effectNodeWithWidth:size.width height:size.height pixelFormat:CCTexturePixelFormat_RGBA8888 depthStencilFormat:GL_DEPTH24_STENCIL8];
+	parent.clearFlags = GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT;
+	parent.clearColor = [CCColor blackColor];
+	parent.clearDepth = 1.0;
+	parent.clearStencil = 0;
+    parent.contentSizeType = CCSizeTypeNormalized;
+    parent.contentSize = CGSizeMake(1.0f, 1.0f);
+    parent.anchorPoint = ccp(0.5f, 0.5f);
+    parent.positionType = CCPositionTypeNormalized;
+    parent.position = ccp(0.5f, 0.5f);
+    
+    CCEffectPixellate *effect = [CCEffectStack effectWithArray:@[[CCEffectPixellate effectWithBlockSize:4.0f], [CCEffectSaturation effectWithSaturation:1.0f]]];
+    parent.effect = effect;
+    
+    [clip addChild:grad];
+    [parent addChild:clip];
+    [self.contentNode addChild:parent];
+}
+
 -(void)setupEffectNodeAnchorTest
 {
     self.subTitle = @"Effect Node Anchor Point Test\nTransparent RGB quads from lower-left to upper-right.";