Re: CALayer vs Layer Backed Views
Re: CALayer vs Layer Backed Views
- Subject: Re: CALayer vs Layer Backed Views
- From: "Bertrand Landry-Hetu" <email@hidden>
- Date: Thu, 1 Nov 2007 14:07:25 -0700
I have set a perspective transform, when I did not the zPosition did
not have any effect.
Just to be clearer, I see the transform applied correctly, I just
don't get the animation of that property of the layer.
I've had some answer off list that we should expect more details soon
of what we can and can't do with the layer of a view.
2007/11/1, Andre <email@hidden>:
> Have you set a perspective transform on the CA3DTransform3D value of
> the enclosing layer? (The layer that encloses all your sublayers)
> If you don't set a perspective transform, then z-position changes
> won't animate.....
> Also, what are the values you are setting for the Z-position?
> Sometimes setting the z-position to some outrageous number causes
> trouble..... (I haven't tested with 9A581)
>
> I've noticed some oddities with CALayer backed NSViews.... basically 3-
> d rotation and stuff is a bit wonky.... at least in the betas it
> was.... hit detection doesn't work in 3-d for example....
> Moving in 2-d space though should be fine...
>
> Andre
>
> On 平成 19/11/01, at 18:56, Bertrand Landry-Hetu wrote:
>
> > Hi list,
> >
> > I'm playing around with layers and there are some subtleties I don't
> > quite get when using layer backed views. I did some animations using
> > "pure" CALayers as a proof of concept for a view. Along the way I
> > figured I'd like to have subviews (NSViews) embedded in it and so I
> > went back to do everything using NSViews that have setWantsLayer set
> > to yes.
> >
> > I noticed that if I change the zPosition of the view's layer it does
> > not animate while it used to when using CALayers only. The position
> > changes correctly, I'm only missing the animation. Changing the view's
> > frame using the animator works fine. I'm wondering, is it safe to
> > change attributes of the layer when the view is in layer backed mode?
> > If it is not safe, is there a way to change transform of the view ?
> >
> > Thanks.
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