I have noticed -setNeedsDisplay seems to breaks contentsGravity like
kCAGravityResizeAspect.
BackBuffer rect seems to control contentsGravity behavior.
- How can I make "kCAGravity compatible" CAOpenGLLayer?
To make contentsGravity property work property , I think CAOpenGLLayer should
keep content as fixed rect.
But layer.contentsRect property seems to be not suitable.
(contentsRect default is unit rect {0,0,1,1}, not in pixel)
Takashi Mochizuki
On 2011/07/13, at 0:34, David Duncan wrote:
> On Jul 8, 2011, at 11:33 PM, Takashi Mochizuki wrote:
>
>> Default CAOpenGLLayer keeps initial buffer size when addSubLayer: is called.
>> And it does not update back buffer size even when layer is resized like:
>>
>> 1. addSubLayer to 200x200
>> 2. resize layer to 400x400
>> 3. layer only shows 200x200 area (keep low resolution)
>
>
> Call -setNeedsDisplay on the layer.
> --
> David Duncan
>
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