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How to make a Glowing Texture for Hammer with gimp
A detailed guide to creating a glowing texture with gimp and vtfedit for all Half-Life 2 mods
If you're like me you prefer to use Gimp for photo editing / texture creation, but when it comes to making glowing textures to import into hammer you hit a wall. The process Ankh describes (link) simply doesn't translate into gimp. Being me, I decided to figure out how to do it and share the results in a tut. It's not nearly as scary as it looks btw, I just went out of my way to really explain things.
Remeber, when using custom textures in source maps you need to pack them into the map.bsp for other people to see them! Pakrat is one of the most common programs to use for this. That's all there is to it, if you run into any problems please feel free to PM me for help.
Wow this tutorial is amazing, very detailed and very clear! This made me realize that GIMP is not too far from Adobe at all, it's just very different in certain options but ultimatly it all comes down to the same thing :)
Very nice and detailed, so many people are vague about certain aspects of their tuts. Maybe I would have mentioned however that you can still "paint" directly on the layer mask in the same way you can paint to the alpha chanel in photoshop, using all the normal tools, fill, paint, smudge etc. In the layer dialog you just need to select either the mask or the layer to tell it which one you want to work on. And also maybe to explain that changing the transparency of the masked area effects how brighly the selfillum will glow.
But other than that, very nice and consise!