Drawing looped tiles that are updated realtime?

for project i'm working on, need able seamlessly loop tiles side side. i've read threads on drawing tile or of size, using offset filter, i'm wondering - there anyway draw within bounding box tile, , have same tile updated , drawn realtime next tile you're drawing? i'm sorry if sounds confusing (i'm horrible @ explaining), project 2d platformer game, , have block of grass that's 128x64. need left , right borders of tile blend can place multiple tiles of kind next each other , they'll loop nicely, it's extremely difficult draw tile, , copy , paste next tile every single time make change original tile test , see if it'll blend seamlessly loops.

 

any appreciated, thanks!

not quite real-time, create tiled array of smart object instances , repeatedly update them pressing cmd/ctrl+s while painting opened in adjacent document window. however, there's no way have brush strokes automatically wrap 1 edge opposite edge of tile being painted, process extremely frustrating in photoshop.

More discussions in Photoshop General Discussion

adobe