Stretched output > non 4:3 displays > FS mode

I am currently adapting an application to be capable to run on computers with different desktop resolution, including standard 4:3 but also 5:4 and 16:10 aspect ratios.

While that works perfectly for the 2D Interface I am facing a strange problem with the 3D views:

When using fullscreen mode the output is perfect when using 4:3 aspect ratios (e.g. 1024x768px), but stretched for 16:10 (e.g. 1680x1050px) and narrowed for 5:4 (e.g. 1280x1024px) aspect ratios. To mention: I use the "video_set" instruction. Apparently the output is always in a 4:3 aspect ratio and then stretched / narrowed to the desktop resolution used.


When making a window that covers all the desktop ("video_windows", "video_set > windowed" instruction) the output apears perfectly for all resolutions.

Is it an engine limitation? I am using 3DGS 6.50.5.
As I would like to use fullscreen mode, has anybody an idea how to overcome these limitations? Use view.aspect for compensation?

It's a hardware issue. Your monitor's not meant to display those resolutions like that.

Try it on a system thats meant for widescreen aspects, and it shuuld work fine.

What do you mean by hardware issues? I am not sure if I understand you correctly.

Just to mention: I am testing the application on different systems which are running in their native resolution, e.g. 16:10 aspect ratios on a widescreen Dell Laptop running on 1680x1050px, 4:3 / 5:4 aspect ratios on Desktop PC running at 1600x1200px / 1280x1024px.
And if the application is not running in fullscreen mode it works.

The question that arises for me is if 3DGS is not designed to run application not using 4:3 aspect ratio in fullscreen mode.

Has nobody experienced the same problem? Is it a bug of 3DGS (v6.50)?

i think you may need to change the view arc for the different resolutions. the standard arc in intended for 4:3 res ans therefore you will have to change it for different ratios .... just an idea...

You have to change the view.aspect variable. The view.arc parameter has nothig to do with that. This issue has already been discussed here:

http://www.coniserver.net/ubbthreads/showflat.php/Cat/0/Number/753124/an/0/page/1#Post753124

Thank you for your input!

View.aspect was exactly the property which I used for compensating the the streched output on non 4:3-displays.

But again, I think it is just a compensation of an engine bug or limitation. The more as I do not have to compensate it when using the same scene inside a window (video_window (size of whole desktop, no border), video_set(window mode))

Hi!

I have got exactly the same problem. I tried to change the view.aspect parameter.
I got strange results. Which value has to be set for 16:10 displays. I thought it might be 16:10 = 1.6. But this does not work. 1.3 comes closer to the correct aspect. But how to calculate the correct value?

Thanks
garv3

Ah, i got it:

If you have a 16:10 display use the following line:
camera.aspect = (16/10) / (4/3);

This should work for any ratio like if modified like:
camera.aspect = (16/9) / (4/3); // For a 16:9 ratio
camera.aspect = (5/4) / (4/3); // For a 5/4 ratio