How to make an alpha texture

In this tutorial you will learn to make yourself an alpha texture. What is an alpha texture?

With this texture you can make trees, backgrounds, even glass for Trainz. This texture is useful when you want to make a complex 2d polygon. This texture helps you make that complex polygon, with a simple plane. The alpha texture contains actually 2 images: a base texture and a black & white one. With black the transparent part of the base texture and with white the solid part. Watch the next video to learn how to do it:

Tip: If you want to get rid of the annoying layer distribution of the alpha textures (intersection of alpha textures) you have to save the black & white texture with Paint as Monochrome BMP, and after you have to save it in TGA. Trainz and Max don’t recognize the Monochrome BMP for unknown reason.