I need to map a partially transparent texture on a flat quad with panda3d. With the quad as a canvas I'd like to create something like sprites positioned in the 3d coordinate system.

I wanted to render a tree. As you can see the color values of the trees border have been stretched over the texture. How can I change the texture mode to include the alpha channel ?

I just don't know how to get hold of the right settings. A link to the right manpage would be perfect. If you need more information about the setup you might want to look at my other question: How do I use setFilmSize in panda3d to achieve the correct view?