VTFEdit is better because there are more options to choose from. Step 5: Using VTFEdit or picture editing software with a VTF plug-in turn the Targa into a VTF and put it in the garrysmod/garrysmod/materials/mapname folder. Step 4: Create a blank text file with the same name as your texture name and put it in the garrysmod/garrysmod/materials/mapname folder These are sizes accepted by Hammer and Valve in general. Choose '24-bit' for the Bit Depth and un-check 'Compress (RLE).' (If your texture has transparency or an Alpha-Channel you need to save it in '32-bit.') Before you save make sure you resize the image to 64圆4, 128x128, 256x256, 512x512, or 1024x1024.
When you save the Targa you are prompted with a box like the one below. Photoshop or paint.NET can save an image as a Targa (I am using Paint.NET). Step 3: Put the texture you want in the garrysmod/garrysmod/materials/mapname folder in Targa format. Step 2: Create a folder named the same as the map you are making the texture for in the “ materials” folder. Step 1: Create a “materials” folder in your garrysmod/garrysmod folder, if it does not already exist. Improvement can be discussed on the talk page. This page needs to be edited as it contains information that is unclear or incorrect.