Hello Conitec,

i just have one simple question. Why does the engine strech the scene whenever i use video_set to switch to a widescreen resolution in fullscreen. If i use the same command to swith to widescreen in windowed mode, everything looks okay as it should without any streching.

So why does the engine not display the same scene result? To my understanding it should not matter if you run windowed or fullscreen. The result should be the same, but unfortunately it is not.

The only way to get proper results in fullscreen is to set the camera.aspect = 1.2 and then move the camera up to see more from the scene. I did a lot of screenshots to get this value look at the following screenshots (ignore the green values they are just debug messages and do not represent the current resolution).

This is the result of 1024x768 fullscreen with camera.aspect = 1
http://www.ackbytes.com/upload/1024a1.jpg

This is the result of 1280x800 fullscreen with camera.aspect = 1
http://www.ackbytes.com/upload/shot_1280.jpg

Finally this is 1280x800 fullscreen with camera.aspect = 1.2 and the camera set 197 quants higher to get the same scene horizontal
http://www.ackbytes.com/upload/1280a1_2.jpg

Now my intention is to find out why i have to set the aspect to 1.2 in widescreen fullscreen, is this a possible engine bug? Because again, i don't have to do this in window mode. Or am i doing something wrong? It does not have to do with my monitor, because i took screenshots to verify this.

Thanks for your response,

Greetings!

Well, when your monitor stretches the image so that a pixel is not square anymore, you need to set the aspect - that's what the aspect was invented for. The engine can not know the shape of your monitor.

Thanks for your response, i can follow you, that the engine can not determine the shape of my monitor but that was not what i meant.

One simple example, i do start the engine in 1024x768 fullscreen on my widescreen monitor. Now everything looks streched - because my monitor streches the pixels, but here the point comes now i take a screenshot with F6. Once i exit the engine and look at this screenshot it has the perfect measures. Because my monitor just streched those smaller engine resolution. I just did it again, here it is: http://ackbytes.com/upload/normal.jpg Have a look at the ackfont in the top left to see the resolution and notice nothing is streched there. To my understanding taking a screenshot just grabs the data, the gfxcard sends to the monitor. This must not correspond to what you see, but it does correspond to what the engine is sending out. Right?

Okay now the same game with 1280x800 at my widescreen monitor. Again everything looks streched, i take a screenshot, exit the game and boom, this is what i got.
http://ackbytes.com/upload/wide.jpg Notice that everything except the ackfont is streched in the screenshot. How can that be? Thats not logical to me, because in windowed mode everything would look not streched at this resolution.
Please look very closely to ackfont top left corner again you can see the font is not streched but the 3d scene is. So this must have to do with the engine and
not with my monitor, if it would - that ackfont must have been streched too!
Can you please explain this please? Thanks very much!

Greetings

edit: You can perfectly see the difference in the streching of only the 3d scene, once you open both pictures at once or overlay them starting at the top left corner.

Yes, sorry, I have not expressed myself clearly - what I meant was: The engine assumes a 4:3 monitor aspect ratio. If your aspect is different, as is the case with wide screen displays, you need to adjust the view.aspect value accordingly.

Thanks jcl.

Frederick, you can already get the native screen resolution wich the user has set in windows with sys_metrics:

Code:

---

int desktop_size[2];	// store resolution
desktop_size[0] = sys_metrics(0); // SM_CXSCREEN X
desktop_size[1] = sys_metrics(1); // Y

---

Oh thanks, I am still a newbie

Hi!
If you want the correct aspect ratio in any of your screen resolutions just add:

Code:

---

  
camera.aspect = screen_size.x/screen_size.y/(4/3);

---

Cant acknex simply automate this functionality, and set the aspect given the fraction screenHight/ScreenWith ?

It could, but it won't. First, it would not solve the problem when your monitor has a different aspect. Second, users won't appreciate functions that suddenly behave differently than before.