Open Radar

 
Summary:
When an SKEffectNode is inside an SKCropNode, the SKCropNode's maskNode does not mask the SKEffectNode.

Setting `shouldEnableEffects` to NO, or `shouldRasterize` to YES, causes the SKEffectNode to be correctly masked.

Steps to Reproduce:
1. Add an SKEffectNode to an SKCropNode.
2. Add a maskNode to the SKCropNode.

Create a new iOS Xcode project (or use the attached tarball) using the Sprite Kit template. Replace the scene class's implementation with the following code. Note the if-statements inviting you to test the two workarounds.


-(id)initWithSize:(CGSize)size {    
    if (self = [super initWithSize:size]) {
        CGPoint center = CGPointMake(size.width / 2, size.height / 2);

        SKCropNode *crop = [SKCropNode node];

        SKSpriteNode *mask = [SKSpriteNode spriteNodeWithColor:[SKColor whiteColor] size:CGSizeMake(200, 200)];
        mask.position = center;
        crop.maskNode = mask;

        // this sprite is added to confirm that the SKCropNode is functioning correctly
        SKSpriteNode *red = [SKSpriteNode spriteNodeWithColor:[SKColor colorWithRed:1 green:0 blue:0 alpha:0.5] size:size];
        red.position = center;
        [crop addChild:red];

        SKEffectNode *effect = [SKEffectNode node];
        [crop addChild:effect];

        SKSpriteNode *green = [SKSpriteNode spriteNodeWithColor:[SKColor colorWithRed:0 green:1 blue:0 alpha:0.5] size:size];
        green.position = center;
        [effect addChild:green];

        if (0) {
            effect.shouldEnableEffects = NO;
        }
        else if (0) {
            effect.shouldRasterize = YES;
        }

        [self addChild:crop];
    }
    return self;
}


Expected Results:
The SKEffectNode should be masked by the SKCropNode.

Actual Results:
The SKEffectNode is not masked by the SKCropNode.

Version:
iOS 7.1 (11D167)

Notes:


Configuration:
iPhone 5S
iOS Simulator