[PD] GEM mapping units to pixels

[cyrille henry]

ok. 
so the patch test3 is more logic than the test2, and it work everywhere.

thanks
Cyrille


chris clepper a écrit :
> Setting a 1:1 perspective tells GL to make x=y in units even though the
> ratio is 1.33:1 in the display.  By not doing this rectangle 1 1 would be
> drawn to match the 4:3 ratio of the window (although the default in GEM is
> x=y so you have to change it to something other than 1:1 to have this
> happen).
> 
> The test2 patch resets some of the ratios to 1:1 so the perspective 
> corrects
> that back to fit the window, otherwise the square is taller than it is 
> wide.
> 
> Hopefully I didn't make this more confusing.
> 
> On 5/13/07, cyrille henry <cyrille.henry at la-kitchen.fr> wrote:
>>
>>
>>
>> chris clepper a écrit :
>> > You are wondering why a 1:1 perspective works for a 4:3 window?
>> >
>> yes.
>>
>> cyrille
>>
>>
>>
>