The process of converting files to PNG is essential for developers and modders working with the Proton SDK , a cross-platform framework primarily used in mobile games like Growtopia . Because RTTEX is a custom texture container designed for performance in OpenGL/GLES environments, standard image viewers cannot open it directly. Understanding the RTTEX Format
If you need to handle multiple files or integrate conversion into a workflow, several scripts and APIs are available: rttex to png
The htf-rttex-unpacker is a simple script specifically built to extract PNGs from directories full of RTTEX files. The process of converting files to PNG is
The original precompiled RTPack.exe from the Proton SDK GitHub can be used, though it requires PVRTexLib in the same directory for certain compression types. Why Convert to PNG? htf-rttex-unpacker - GitHub The original precompiled RTPack
You can use the rttex_unpack function from the growtopia library. A typical script would look like this:
from growtopia.rttex_converter import rttex_unpack with open("image.rttex", "rb") as f: unpacked_png = rttex_unpack(f) with open("image.png", "wb") as out: out.write(unpacked_png) Use code with caution.
A popular choice where you simply upload the file, and the tool renders it onto a JavaScript canvas. You can then click the image to save it as a PNG .