Grimrock

I got it! Thank you so much guys, especialla Xanathar and cougardod - while viewing your mods i found the error

there was actually a formatting error in my lua script and that broke the whole mod - crazy thing! it had nothing to do with the textures themselves, its working like a charm now

EDIT: In addition to that, it seems like my DDS exporter plug-in is total crap (photoshop runs on a mac here)

thank you soooo much, without your help i would have never realized the true error

sorry for hitchhiking this thread with my problem

super community!

Sorry double-post. I wanted to add my final thoughts regarding the issue:

1. Maybe i am a rare case: I play grimrock on a PC, but do all editing on a MAC - this just as a sidenote

2. it seems like lua scripts are not only case-sensitive, but also tend to corrupt when you mess with line breaks (like changing the encoding from os-x to windows text files).

3. as there is no true DDS plugin for photoshop on os-x, you are forced to use external tools. please note that most of them are pure crap! i tried three different tools so far - and they all mess the dds up completely (ignoring alpha and the like). the only mac os-x DDS converter i can really recommend is Aorta.

Mac Users can get it here: http://mac.softpedia.com/get/Graphics/Aorta.shtml

4. Although it says in the modding section you can use a texture atlas of any size, it get errors with all sizes except 1024x1024. cant solve this issue now. just as a side note

5. Save your texture as PNG then save your mask as B/W sperate PNG file. import both into aorta and convert them into DDS with standard setting. be sure to turn compression off.

Thats it. Costed me half a day, but its finally working.