On 22/10/2011, at 9:09 PM, Nial Giacomelli wrote:

> The PNG file that is ultimately generated renders the content
> correctly, but doesn't seem to takes the flipped geometry into account. I'm
> obviously looking for test.png to accurately represent the content shown to
> the left.


When -renderInContext: is invoked, the CALayer captures that content as an 
image and when it's displayed by the OpenGL system the geometry is applied. So 
none of the geometric properties, transforms, etc apply at that time - they are 
applied to display that content, not to generate it.

I think you may have the idea of -renderInContext: backwards - it's not invoked 
when the layer is drawn on screen, but to supply some content for the layer 
which is drawn later, with transformations.

I think you'll have to grab all the properties you want to apply and take them 
into account when generating your png image.

--Graham_______________________________________________

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