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Couple of questions:
1) When I import a PNG file that is not the exact pixel size as the original, even if it is correct aspect ratio multiple (e.g. 11712x11712 or 12288x12288), the end result shows up all garbled in the game (both with legacy TIS or PVRZ-based). Why is that?TIS files are merely collections of tiles. They don't store width or height, and don't even have to be laid out sequentially. That's all provided by the associated WED file. In NI's TIS viewer you can adjust the desired width by a slider or input field to fix the distortion in the viewer. For the game you have to adjust the tile mappings in the associated WED file, but that's a lot of tedious work to do it manually. I'd recommend to use the same scale and layout of the original tileset instead, if you just want to improve the tileset graphics.
2) Must backgrounds be scaled back down to original pixel size? Is there any way to maintain pixel size greater than original?Yes, the backgrounds have to match the scale of all the other graphics in the game to work correctly. The game graphics is purely based on 2D assets, so the size of everything (tilesets, overlays, sprites, as well as interactive regions or coordinates) must match. It is theoretically possible to upscale the whole game (PST uses a different scale than BG or IWD), but it would be a huge amount of work and would possibly be limited by several hardcoded assumptions.
Thanks that is helpful.
When I changed some PSTEE area backgrounds and imported them again, there is an issue with a black box appearing where doors are supposed to be (another minor issue is some line seams that appear on certain backdrops). Do you know how to fix that?
