I was looking into writing an isometric 2D engine, and noticed a lot of places said to do tiles in 32x15 because of the 2:1 aspect ratio. My question is why is that the standard? Most computer monitors display in 4:3 aspect ratio. I just want some clairfication before working on drawing any of the tiles.
screen = 640x480
isometric tiles = 32x15
640/32 = 20
480/16 = 32
It means the ratio of the tiles. As long as the tiles fit the screen width and height you should be ok. I don't know what else to say, I thought it was pretty simple to understand.
Last edited by sand_man; 02-07-2006 at 06:38 AM.
I understood that it is the ratio of the tiles, my question is why do guides and what not use that as a standard ratio for the tiles?
Well you can use whatever ratio you like as long as it fits the screen.
eg.
tiles = 33x11
640/33 = 19.39 *doesn't fit
480/11 = 43.63 *doesn' fit
2:1 or 32x15 or even 32x16 is just easier. unless you want larger tiles you can use 64x30 or 64x32. Whatever you like.
Thats not neccesary, really. The tiles can be clipped anywhere they meet screen boundaries; Something you'll have to implement at least by halves anyways, and in full if you desire per-pixel scrolling of the terrain (likely).Originally Posted by sand_man
Personally i'd use something close to a power of 2 so you don't waste space on your tile textures (if you're using DirectX that is).
"There's always another way"
-lightatdawn (lightatdawn.cprogramming.com)
Oh yeah, I didn't think about scrolling.
Well there you go
So far I am using SDL, but hope to move to trying OpenGL and DirectX within the next couple weeks. I want to build my isometric engine in SDL first, so I know the basics as to how it will work. Then I can go back and learn OpenGL or DirectX (need to research more into both to see what I want to go with, would there be any reason to go with one or the other when making a game with a FF Tactics style combat system?) my tiles are 60x29 right now, but could be expanded, I am thinking I will move up to 64x32 since those are powers of 2 and LightAtDawn recommended that.
