small gap between texture tiles

jfreymann

Hi,

while developing a game using moving tiles (SPImage objects), I am having trouble with tiny gaps between the tiles. The gap is not static but flickers a bit when the images are moving. You can see it in the following screenshot:

http://picpaste.com/iOS_Simulator_Screen_Shot_09_Oct_2014_00.32.11-UL9HL6si.png

Rounding errors in the image position do not seem to cause the problem. It might be related to anti-aliasing, but I did not find a way to switch anti-aliasing off.

Does anybody have a suggestion? Eliminating the tiles and putting all tiles in one big texture is not an option, it would cause memory issues.

Shilo

Hello.

Personally, I have never ran into a gap issue that wasn't related to non-whole numbers. The fix that always worked for me was to round the position/size to the nearest whole number on the stage. You mentioned that this didn't work, did you make sure that the stage coordinates are also a whole number, not just the local coordinates? In some projects, I even went to the extreme of rounding the position values by overriding/modifying the setX: and setY: methods.

If that is still no help, this might be of some use:
http://forum.sparrow-framework.org/topic/gaps-between-tiles#post-15280

There are many other topics on this forum regarding the same issue, but I can't seem to find any.