Open Radar

 
Summary:
tl:dr; the animatable key path for SNCMorpher weights is "weights[index]" (plural), not "weight[index]" (singular)

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In the header for SCNMorpher, you can read that wieght has an animatable key which is "weight[index]". Quote below:

/*!
 @method setWeight:forTargetAtIndex:
 @abstract Sets the weight for the target at the specified index. Animatable implicitly or explicitly with the keyPath "weight[index]".
 */
- (void)setWeight:(CGFloat)weight forTargetAtIndex:(NSUInteger)targetIndex;

However, when you try to animate such a key path (in this example "weight[0]" you get an alert saying that it's not animatable, console output below:

[SCNKit ERROR] weight[0] is not an animatable path (from <SCNMorpher 0x6000000134b0>)

The real key path that works is "weights[0]". Note the extra "s" (weights instead of weight). The documentation should be updated with the correct key path.

Steps to Reproduce:
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Expected Results:
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Actual Results:
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Regression:
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Notes:
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