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yoyohobo665

cons of non-square textures

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yoyohobo665    124
I'm currently making a sword for a game and am about to texture it. The texture resolution is to be no larger than 512x512. I find it would be much easier to texture the sword, while keeping the same level of detail to each piece, by making the texture 256x1024. The file-size stays the same which is good, but I'm reluctant to go through with it because I'm not sure if there are any cons to using a non-square texture. I've never seen any professional use non-square textures in a videogame. Why not?

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Zao    971
Usually, textures are not a single continuous image, but unwrapped flattened geometry fit into a square texture. That way, the amount of detail given to different pieces of the mesh can be adjusted just by changing the amount of the texture allocated to those faces.

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superpig    1825
Some old, old cards don't support non-square textures. Also, being non-square means you lose a bit of efficiency on your mipmaps.

It's not really something to worry about these days. As long as you're sticking to power-of-two, rectangles are fine.

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Jerax    126
Quote:
Original post by dpadam450
Alot of videocards DON'T support non-power of 2 textures. I know my Geforce 7 series supports it. I dont think the 6 series does though.


6 series do, they were the first (nvidia) cards to support non-power 2 textures.

Non-square is fine, having square textures hasn't been an issue for at least 10 years.

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