In the lecture around 6:30, Ben explains the camera size is 7.5 units, but he needs to figure out the proper camera size so it fits around the image (800x600)…

I get that the camera size is the distance from the center to the edge, so the true play area is 15 units (7.5 camera x 2)

He begins to explain the play space is 16 units, (where there was 16 bricks and each brick was 1 unit as explained in a previous lecture)

and the aspect ratio is 4:3 so we need to figure out how high it is.

Here is the part I’m having trouble figuring out how he got the formula:

16/4 * 3

We want to divide our games play area, 16 by 4, which is the height ratio, and then multiplly it by 3 which is the width ratio…

What is the logic behind this? Is there a page or link somewhere that can help explain more screen ratio conversions? I would really like to understand this on a fundamental level. Thanks in advance!

-Steve Macintyre