Hello,
I'm seeking help with using tis2bg2 tool. For some reason the output of conversion always end up being corrupted for me. I'm using vanilla files from retail BG1 game and yet I can't make them work no matter what I try (and there really isn't much to experiment with when it comes to this tool - just few options). Readme doesn't exist, but options can be viewed by running the tool in command line.
Could anyone please download this archive, extract it anywhere, try to use "convert.bat" and then load the TIS file in Near Infinity (new file is generated in BG2600\BG2600.TIS). For me it ends up looking like this:
And yet pretty much the same code is used in BGT (just with array to provide arguments) and EasyTutu "Degreenifier" (done via batch file, older version of tool compared to BGT - tried both of them). Unless I miss something this batch code should properly convert files:
md BG2600 tis2bg2.exe -l AR2600 BG2600\BG2600
But nope, vanilla BG1 TIS file extracted with this code:
weidu.exe --noautoupdate --no-auto-tp2 --out "unbiff" --biff-get-rest "^AR2600"
becomes corrupted 
I don't get it.