I haven't been able to get the texture blend to work at all. I saw a video of it being done one time, and actually got it to work when blending a texture with a background image, but that was in an earlier version. I would like to be able to blend two textures using the rub tool - but nothing ever happens. I start by selecting the parts of the terrain I want to "paint" (so they are highlighted red), then select the rub tool and set both textures, go to my 3d view and "paint" or "rub" holding the left mouse button but nothing happens! What am I doing wrong????