🖼️ What is an RTTEX file?
It’s a proprietary texture format used by RTT (Round-Trip-Ticket) engine-based games (like Geneshift or modded GTA: San Andreas). It stores images with extra rendering data.
âť“ Why convert to PNG?
PNG is universal, editable, and web-friendly. RTTEX isn’t readable by most image editors or browsers.
⚙️ How to convert RTTEX to PNG:
đź“Ś Note: If the RTTEX contains DXT compression, ensure your converter supports decompression.
Some RTTEX files store transparency in a separate channel. Ensure your converter supports alpha extraction. The tools mentioned above do, but some simple converters will discard the alpha channel, resulting in a black background in your PNG. rttex to png
To convert an entire mod’s textures:
RTTexConverter.exe -i "C:\Mods\MyMod\Textures" -o "C:\PNG_Export" -r -f png
You might be asking: Why not just keep them as RTTEX? The answer lies in compatibility. Here are the top five use cases for converting RTTEX to PNG: 🖼️ What is an RTTEX file
Even with good tools, you may encounter issues. Here’s how to fix them.
| Error Message | Probable Cause | Solution |
|---------------|----------------|----------|
| Unsupported RTTEX version | The file comes from a newer game (e.g., FS22 vs FS19). | Update your converter tool to the latest version. |
| Failed to decompress BC7 | Missing BC7 decompression library. | Use Noesis instead; it has built-in BC7 support. |
| PNG output is solid black | The RTTEX stores only normal map or depth data, not color. | Open in Noesis and check the texture channels; what you see may be correct. |
| File not recognized | The file extension is .rttex, but the header is invalid. | The file may be encrypted (some games pack assets). Decryption is required first. |
| Alpha channel lost | The converter stripped alpha by default. | Use a converter with an "Keep Alpha" flag (e.g., -keepalpha). | đź“Ś Note: If the RTTEX contains DXT compression,