Sprite Kit: SKCropNode + SKEmitterNode cause a big performance drop in iOS 9

Originator:batalia.nerdys
Number:rdar://22821166 Date Originated:
Status: Resolved:
Product:iOS Product Version:9
Classification:Bug Reproducible:Always
 
Summary:
When an SKEmitterNode is placed inside an SKCropNode, the emitter will not be rendered, and the performance will drop by 33% (down to 40-ish fps). The same project renders on iOS 8.3 flawlessly.

Steps to Reproduce:
1. Create an SKEmitterNode.
2. Create an SKCropNode and add the emitter as its child.
3. Add the crop node to the scene.

Expected Results:
The emitter masked by the crop node, visible, and running at 60 fps.

Actual Results:
The emitter is not visible, framerate is at 40-ish fps.

Version:
iOS 9.0 (13A344)

Notes:
Example project attached.

Comments


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