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Ok some info/thoughts about viewport / aspect ratio / resolution...

Aspect Ratio is: (Are you ready?)

Aspect Ratio is a measure of the relative width and height of the display.. Notice that your monitor screen is slightly rectagular (It is wider than it is tall). This creates a non-uniform display aspect that can make images longer or shorter in one of the axial directions.. Imagine the screen has a resolution of 100x100 pixels. That would mean that each pixel is a little wider that it is tall. Thus, if we were to draw a 10x10-pixel square, it would look like a rectangel! This is a side effect of aspect ratio. The standard computer monitor has an aspect ratio 4/3 or 1.33 times wider than it is tall. Hence, if square is to be square, the screen resolution can't be NxN. The resolution(*viewport*) must have the same aspect ratio as the screen..

For example, resolution of 640x400 has an aspect ratio of 8/5 or 1.6, which is slightly larger than the screens 4/3 or 1.33. This will have the effect of making squares tall. On the other hand, the resolution of 640x480 has an aspect ratio of 640/480 or 1.33, which is equal to the monitors aspect ratio, and thus squares will be squares! When writing 3d games it's important to use a video mode that has an aspect as close as possible to that of the screen.. This helps objects keep their proper dimensions when they are rotated; otherwise; as objects are transformed, they will get taller and wider, or vice versa..

All that was from the book Black Art of 3d Game Programming..
I was basing my 4/3 aspect ratio on that information...

(Still reading?)

So according to that:
If you wan't a truly non-distorted display,
You should use a resolution with the same aspect that your monitor has..

And I think the same is true for the viewport.. You should use a viewport with the same aspect ratio as your monitor..

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Eloora: The reason 1280x1024 (5/4)looks distorted to me and 1024x768(4/3) looks good is because I have a 17 in. monitor that has an aspect ratio of 4/3..

The reason 1280x1024 looks good to you and 1024x768 looks distorted is because you have a 19 in. monitor (most 19 in., I believe, have an aspect ratio of 5/4)..

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06-26-2003, 10:14 AM	#49
Talyns The Tablets Guy Join Date: Jul 2002 Server: Lanys Posts: 520	Viewport, Aspect Ratio, and resolution Ok some info/thoughts about viewport / aspect ratio / resolution... Aspect Ratio is: (Are you ready?) Aspect Ratio is a measure of the relative width and height of the display.. Notice that your monitor screen is slightly rectagular (It is wider than it is tall). This creates a non-uniform display aspect that can make images longer or shorter in one of the axial directions.. Imagine the screen has a resolution of 100x100 pixels. That would mean that each pixel is a little wider that it is tall. Thus, if we were to draw a 10x10-pixel square, it would look like a rectangel! This is a side effect of aspect ratio. The standard computer monitor has an aspect ratio 4/3 or 1.33 times wider than it is tall. Hence, if square is to be square, the screen resolution can't be NxN. The resolution(viewport) must have the same aspect ratio as the screen.. For example, resolution of 640x400 has an aspect ratio of 8/5 or 1.6, which is slightly larger than the screens 4/3 or 1.33. This will have the effect of making squares tall. On the other hand, the resolution of 640x480 has an aspect ratio of 640/480 or 1.33, which is equal to the monitors aspect ratio, and thus squares will be squares! When writing 3d games it's important to use a video mode that has an aspect as close as possible to that of the screen.. This helps objects keep their proper dimensions when they are rotated; otherwise; as objects are transformed, they will get taller and wider, or vice versa.. All that was from the book Black Art of 3d Game Programming.. I was basing my 4/3 aspect ratio on that information... (Still reading?) So according to that: If you wan't a truly non-distorted display, You should use a resolution with the same aspect that your monitor has.. And I think the same is true for the viewport.. You should use a viewport with the same aspect ratio as your monitor.. -------------------------------------------------------------------- Eloora: The reason 1280x1024 (5/4)looks distorted to me and 1024x768(4/3) looks good is because I have a 17 in. monitor that has an aspect ratio of 4/3.. The reason 1280x1024 looks good to you and 1024x768 looks distorted is because you have a 19 in. monitor (most 19 in., I believe, have an aspect ratio of 5/4).. ------------------------------------------------------------------- __________________ Talyns Lanys Characters: -Acarrion (51 BST) -Hawkren (20 SHM)