For the GoldSrc engine, images must have dimensions that are multiples of 16 (e.g., Total Pixels: The total surface area (width height) typically cannot exceed 12,288 pixels.
To use the tools found in "Drip.zip" (or modern equivalents like HLTagConverter), follow these steps:
Locate your game folder (e.g., C:\Program Files (x86)\Steam\steamapps\common\Half-Life\valve ). Place your tempdecal.wad file in this folder.
Right-click the file, go to Properties , and check Read-only . If you don't do this, the game will overwrite your custom spray with the default one when you open the options menu. 4. Troubleshooting