Fullscreen doesn't fit screen appropriately (Macbook Pro Retina)

[johnjelinek]

Example from example 01:

[johnjelinek]

My appropriate resolution should be 1440x960 but I think it's trying to do the full retina display resolution.

[johnjelinek]

Here is another example. I think the problem is that the retina MBPs run pixel doubled at the standard resolution.

[johnjelinek]

More screenshots:

As you can see, the full screen window is double the size of my display.

[johnjelinek]

Looking at this a bit closer, I see this when reviewing my display-modes:

(display-modes) ;;=> (#<DisplayMode 2880 x 1800 x 32 @0Hz> #<DisplayMode 2880 x 1800 x 16 @0Hz> 
#<DisplayMode 2560 x 1600 x 32 @0Hz> #<DisplayMode 2560 x 1600 x 16 @0Hz> 
#<DisplayMode 2048 x 1280 x 32 @0Hz> #<DisplayMode 2048 x 1280 x 16 @0Hz> 
#<DisplayMode 1680 x 1050 x 32 @0Hz> #<DisplayMode 1680 x 1050 x 16 @0Hz> 
#<DisplayMode 1440 x 900 x 32 @0Hz> #<DisplayMode 1440 x 900 x 16 @0Hz> 
#<DisplayMode 1280 x 800 x 32 @0Hz> #<DisplayMode 1280 x 800 x 16 @0Hz> 
#<DisplayMode 1024 x 768 x 32 @0Hz> #<DisplayMode 1024 x 768 x 16 @0Hz> 
#<DisplayMode 800 x 600 x 32 @0Hz> #<DisplayMode 800 x 600 x 16 @0Hz> 
#<DisplayMode 640 x 480 x 32 @0Hz> #<DisplayMode 640 x 480 x 16 @0Hz>)

In my scenario, it should be the 9th and not the first one in this list.

[johnjelinek]

Making progress :)

I also found (Display/getDisplayMode) gives me the resolution I'd expect.

@samaaron Any reason why you chose to make a function that gets all display modes instead of the one currently being used?

[johnjelinek]

Note: You have to restart nrepl to have it recognize you've switched resolutions with (Display/getDisplayMode). I'm gonna send in a PR.

[rogerallen]

Hi John,

Thanks for digging in and resolving this. It looks like your pull request solves this elegantly. I'll check this out myself and likely accept it soon.

@samaaron and I were both assuming that the highest-res Display first in the sorted (display-modes) sequence would be equivalent to the Display you would want when running full-screen. Apparently the retina display breaks that assumption due to some pixel-doubling that LWJGL can not know about.

I'm curious, is it possible for you to select a 1:1 pixel mode for display on your desktop? #<DisplayMode 2880 x 1800 x 32 @0Hz>? Some might shadertone users may actually want to run at full-res.

[LOL: 0Hz? that's a pretty low frame rate. I bet that makes some LWJGL apps blow up with a divide-by-zero!]

[johnjelinek]

@rogerallen Where did you see I had 0HZ? Regarding 1:1 pixel-modes, MBPs don't give you access to that unless you use a third party tool like SetResX.

[rogerallen]

@johnjelinek re @0Hz. See the output from (display-modes) above.

#<DisplayMode 2880 x 1800 x 32 @0Hz> #<DisplayMode 2880 x 1800 x 16 @0Hz> ...

[johnjelinek]

oh lol! I guess my head filtered out the stuff surrounding <``> because I didn't see it until right now. off-topic: do you have any recommended tutorials around glsl? I've been grabbing stuff from shadertoy, but I'm not familiar with the API and a lot of the math stuff is going right over my head (it seems a lot of them have logic baked in with the display, gross).

[rogerallen]

I'll circle back if I find anything. For the moment, see http://www.reddit.com/r/twotriangles/ esp. sidebar for some info.

I would just caution you that, yes, this can be really complicated if you want to make pseudo-realistic imagery. You're basically writing a ray tracer in GLSL. But, try to start small with simple geometric patterns and give yourself some time to learn the more involved rendering over time.