files are a proprietary texture format used by the Proton SDK (famously in games like
[0:10] “That’s a texture from the RAGE engine. You can’t just open it in Photoshop.” rttex to png
If you have a large library of assets, command-line or GUI tools are more efficient: files are a proprietary texture format used by
Have a question about a specific RTTEX file? Leave a comment below (on the original platform) or join the FS Modding Discord. Inspect header (use a hex editor) to find
Python (Growtopia API): You can use the rttex_unpack function from the growtopia library. A typical script would look like this:
This script reads the raw binary data of the texture and "unpacks" it into standard PNG format . 3. Desktop Batch Conversion
Save: The tool will output a standard .png file, which you can then open in any image viewer or editor like Photoshop or GIMP.
from PIL import Image
with open('input.rttex','rb') as f:
header = f.read(32) # parse as needed
pixel_bytes = f.read() # read remaining raw RGBA
img = Image.frombytes('RGBA', (width, height), pixel_bytes)
img.save('output.png')