Shadow multitexture

Question

There is a shadow mapping in this tutorial: http://www.paulsprojects.net/tutorials/smt/smt.html

Good, but I didn’t understand how to create a multitexture scene.

If in the third pass of shadow matching it is necessary to link the texture of the shadows, the projected texture to perform a depth comparison, HOW can I snap other textures if I need to connect the texture of the shadow display?

Should I set the shadow display as a separate texture for snapping? Something like that:

• Active shadow texture
• Active texture 1
• Active texture 2

I tried this, but it did not work (maybe I did something wrong).

Answer 1

, , shadowmap?

, (, , , OpenGL 1.4/1.5 , GL_MAX_TEXTURE_UNITS_ARB glGetIntegerv()). , /.

Answer 2

, . / .