Image sheets, achieving the perfect @2x sheet.

Solar2D General Questions/Discussion
#1

Hi I always having trouble with getting my @2x imagsheets to line up, I always lose pixels off the top and left side of images.
I use texture packer to create a sheet with @2x images. Then save that sheet and create another at scale 0.5 and also save the data file for that sheet.

As the api explains it is retina compatible and uses the sprite-data to scale to 2x.

What am i doing wrong to cause the 2x spritesheet to not align perfectly.

I’ved tried doubling the padding and border for the @2x sheet but still have issues.

All sheets to power of 2 also. No trimming.

Any suggestions would be great??? Perfect settings would be even better :slight_smile: [import]uid: 118379 topic_id: 26191 reply_id: 326191[/import]

#2

I don’t know if this is the better workaround, but it works:

I use sprite grabber class to manage atlases, and i’ve modifyed this class to do this:

 local escala = display.contentScaleX;  
  
 if escala \< 0.26 then  
 scaleSuffix = "@4";  
 elseif escala \< 0.51 then  
 scaleSuffix = "@2";  
 elseif escala \< 0.65 then  
 scaleSuffix = "@2";  
 elseif escala \< 1.25 then  
 scaleSuffix = "@1";  
 else  
 scaleSuffix = "@2";  
 end

local iSpriteSheet = sprite.newSpriteSheetFromData( sheetName…scaleSuffix…sheetExtension, sData )

I hope it works for you!

Best regards [import]uid: 131209 topic_id: 26191 reply_id: 106189[/import]