Texture Blending
This is a tutorial by Gr1m, a forum member, the original can be found here.
Many people ask how to combine two textures to use with the paint tool, i never knew how so i thought i would figure it out. I was surprised how simple it really is, let me break it down into three easy steps.
1. Find the path to your texture.
2. Find what number your second texture is on texture list.
3. Code it in "Default_map_settings.cfg.
Example:
texture 0 textures/rock01.jpg texlayer 520
The first line of code is showing the path to your first texture. The second line of code is the second texture your blending and its number on the texture list. In this case the last texture i imported to Sandbox was a vine texture which is the five hundred and twentieth texture.
One important thing if your using the SVN version of Sandbox, to access the paint tool its "Alt-P". (CP Edit: or just P)