I came over from Stack Overflow, I'm not really sure if this is the right place to ask this question, I'd like to apologize in advanced. I just finished a couple of isometric maps, the first map is an image with a 28712x27744 size. I know how big that is. The reason is that my screen (based on the return values of my program) returns a size of 3840x760 (fullscreen), the program (an RPG Game) should be able to project that size from the image and feature scrolling all along the x and y axis of the image since the image acts as a map.
The image was made at inkscape. But I'm planning on making a texture over at GIMP, the thing is that it takes a heck lot of time so I tried to export the image from inkscape at half the size of the original, but GIMP still runs pretty slowly. I was thinking of going smaller but I feared the the image but appear blurry in-game (I'm not using a commercial engine but a personally made engine so I'm trying to make the resources fit easier).
My question is- Is there a way to texture this without my pc processing like a snail? OR If there's no other way then if I were to downsize it, do you guys have any techniques on how I should tackle the texturing so that it won't appear blocky when enlarged? an example would be those old 2d rpg games (usually from the ps2 era), I noticed that no matter how gigantic the screen goes, the texture doesn't really seem like you're looking at a pixel, instead, it seems like you're looking at a proper image.
I'm really sorry if this was the wrong place, I was thinking if I should post this at gamedev or graphicsdesign, though I chose gd since I might get more people who have proper tips.