How to simulate/display 2D pixelated graphics?

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Is it possible to render say a 320x240 window at 640x480 and just double up the pixels? I'm going for a retro feel; In flash I just render everything to a Bitmap object and scale it up; was thinking it might be possible to somehow "render" to a Texture/Mesh (still learning unity sorry) and then just scale that up...

I did find this: http://answers.unity3d.com/questions/26853/can-i-scale-up-screen-pixels but it's only for Unity pro

This is just for a 2D platformer (Think Sonic 1 :-p, but not... heh)

Thanks, Chris

Answer 1

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Answer by Jessy · Feb 01, 2011 at 01:44 PM

Any texture that you want to look like that, just use Point filtering. I don't have Unity Pro, so don't have experience with Render Textures, but I assume that would work. What is the exact effect, here? You want to use 3D models, but have their edges sampled at a frequency much lower than what the screen resolution offers?

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Borgo · Feb 01, 2011 at 02:16 PM 0

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I guess what he want is a post effect. just to get a effect like this: http://www.pixelgraft.co.uk/wp-content/uploads/2007/08/pixelate.jpg

Chris Lightfoot · Feb 02, 2011 at 12:16 PM 0

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Yep; although it seems a waste to get the GPU to do all that hard work and then remove it -- I've seen a bunch of 2d platformer games that have what appear to be low resolution and then scaled up; was just wondering how they were doing it.

Chris Lightfoot · Feb 02, 2011 at 12:34 PM 0

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Point filtering seems to do the trick; at least to get pixellated textures! Just have to figure out the coordinate system to achieve a 320x240 feel :-D.

Chris Lightfoot · Feb 03, 2011 at 10:52 AM 0

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Had a further play with this and I think I'll end up scripting the camera to do it all automatically; trying to tweak the camera using the editor just doesn't seem to get it right... I'm also not sure what scale to use; Whether to use a scale of 320x240 or use 1/320 x 1/240... it seems there's some limits on the values Unity will use...

Jessy · Feb 03, 2011 at 11:05 AM 0

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I'm not sure what you mean by that. Are you just having problems with integer division? Those fractions are equal to zero unless you put the letter F after them.

Answer 2

Answer by e-bonneville · Feb 01, 2011 at 03:26 PM

No, Unity doesn't work like that, sorry. You have to manually create all the textures at a low resolution if you're going for a pixelated effect.

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Chris Lightfoot · Feb 02, 2011 at 12:27 PM 0

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All my graphical assets are already scaled for 320x240; This is purely for 2d not 3d;

Answer 3

Answer by thomasfriday · Jul 13, 2021 at 08:45 AM

Here's a short Youtube video that covers exactly how to get a pixelated look: https://youtu.be/Sru8XDwxC3I

pixelated cube

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How to simulate/display 2D pixelated graphics?

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