how to make those User Bars often seen on Forums.
Custom particles in maps & spritesheet VTFs
This tutorial fom Stadric shows how to make textures look more realistic with depth and texture, by specular bumpmapping.
This tutorial walks you through creating a material with transparency and then placing it into VGUI menu.
How to create an alpha blending texture.
This tutorial is a small introduction to skins.
How to painlessly make functional blend textures.
Surface Materials for Source
Our first tutorial is creating a static spray with no transparency.
a pretty simple tutorial on making transparent textures
From bump mapping to phong shading - This tutorial covers a large number of texture effects. Look inside to discover how to give your textures an extra special touch.
Tutorial on making a spray decal that contains a full range of transparency, such as text or graffiti like used in HL2.
How to create textures with Paint .NET and notepad.
This tutorial will show you how to create custom textures for use in creating maps for the Source engine
how to make a signature for a forum, using pixel stretch technique to give a blurred matching background.
how to make an animated texture work for you in Half-Life. You will need these programs: Photoshop and VTFEdit
This covers creation of custom textures in the Source engine
Creating Animated Sprays
Creating a Fading Spray
This tutorial will cover the basics of reskinning a model for Hammer and HalfLife2.
Learn how to use custom textures in HL2 and CS:S.
Our second tutorial is creating a static spray with transparency.
Using GIMP to make self illuminating textures
how to extract a texture from the game, and then edit it.
What are source spraylogos? Spraylogos are images you can place on most surfaces in source multiplayer games with the exception of models.
How to make a transparent texture.
This shows you how to make a blend texture for use on displacements and was created by Stadric.
Pixelated Sprite Sprays
If I can find a photograph of something similar, it's fairly straightforward to turn it into a texture file.
This is the first of a series of texturing tutorials from Gronblad, and covers making a texture, and converting it for use in Hammer and HalfLife 2
Visible representation of water textures