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  Scale2X Java Source  (Read 2862 times)
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Offline kevglass

« JGO Spiffy Duke »

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« Posted 2005-07-21 12:35:48 »

I've just written code for the scale2x and 3x algorithms. This algorithm takes old style sprites (you know, thick colours, defined lines) and attempts to scale them up without losing detail. Code is here, with some minor examples:


Offline Matzon

JGO Knight

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« Reply #1 - Posted 2005-07-21 12:41:53 »

erikd, hope you're reading this - coz you gotta implement it in JEmu!

Offline kevglass

« JGO Spiffy Duke »

Medals: 272
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Coder, Trainee Pixel Artist, Game Reviewer

« Reply #2 - Posted 2005-07-22 08:21:58 »

Now I've worked out hot to post images [never knew, after years] :

Source Image:

Standard 3x Scaling:

Scale3x Scaling:

I'm impressed by the algorithm at least. Note how the colours are intact, no blurring and relatively smooth lines even at 3x scale up. I've not tried it but I guess you could scale down to exact size you wanted.


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Offline Matlu

Junior Devvie

Hasta La Victoria Siempre!

« Reply #3 - Posted 2005-07-24 08:22:43 »

very impressive Smiley I see it's also used in WinUAE, I'm going to try it Smiley Had no time to play with emulators recently Sad

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Offline dgam3z

Junior Newbie

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« Reply #4 - Posted 2005-07-26 00:57:12 »

Thanks for sharing the code. I will probably use it on one of my projects.  Smiley
Offline erikd

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« Reply #5 - Posted 2005-08-27 11:55:04 »

erikd, hope you're reading this - coz you gotta implement it in JEmu!

These classes are real nice! In the JEF library there has been a scale2x renderer for quite some time already, though. The algorithm in JEmu was ported from AdvanceMAME. But I guess now I'll have too implement scale3x too Wink
This weekend I'll try to find time to upload a new version of JEmu2, with the scale2x renderer and scanlines renderer options exposed in the front end.

Offline g666

Junior Devvie

« Reply #6 - Posted 2005-08-29 20:53:27 »

That is nice, the enlarged sprites actually have a cool hand drawn look to them now.  Cheesy

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