iphone - Making a SKScene's background transparent not working... is this a bug?

Question

Is there a way to make a SKScene's background transparent and present that scene over another one seeing thru the transparency.

The idea is to have the background of the presented scene like this:

self.backgroundColor = [SKColor colorWithRed:0.0f green:0.0f blue:0.0f alpha:0.5f];

what would allow to see the scene behind darken. But doing this is not working. Background is presented completely opaque.

Is there a way to do that?

question from:https://stackoverflow.com/questions/18894493/making-a-skscenes-background-transparent-not-working-is-this-a-bug

Answer 1

In iOS 8, you can set the scene's SKView to allow transparency and set the scene's background color to have transparency. Then views behind the SKView will be seen.

UIView *parentView = ...;
[parentView addSubview:backgroundView];
[parentView addSubview:skViewWithScene];
skViewWithScene.allowsTransparency = YES;
scene.backgroundColor = [UIColor clearColor];
[skViewWithScene presentScene:scene];