How can I get Unity to stop resampling my sprites?

Question

I am rendering sprites as a single texture on a quad. Unfortunately, Unity resamples the texture to the nearest power of two which affects the artwork when it is a different size (eg. 24x24). I can zoom in during play and see that the texture has become a 32x32 one. The texture is set to Point mode so bilinear filtering is off.

I have tried setting the asset to the 'GUI' texture mode, but it is still being resampled. Similarly if I go to 'Advanced' texture mode and leave the nearestPowerOfTwo mode on 'None', it is resampled then, as well.

Anybody have any suggestions?

Example image, Scene view on left, original asset on right: alt text

And a close-up of how the texture appears in the preview after importing, to show it was imported correctly: alt text

Answer 1

Answer by Madhotdog · Apr 25, 2014 at 11:51 AM

Couldn't you just add the sprite to a sprite sheet (which is PoT) and then change the texture co-ords of the quad? That should give you pixel perfect sprites and work more optimally.

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Wolfram · Apr 25, 2014 at 12:07 PM 0

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That's good advice, but it has already been suggested by @$$anonymous$$alikDrako, and was discussed in @Bunny83's answer (it's called a "texture atlas"). (although they didn't explicitly mention that the atlas must be POT, though that should be selft-evident)

How can I get Unity to stop resampling my sprites?

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