#N canvas;
#X obj 124 105 gemhead;
#X msg 173 156 1;
#X msg 173 184 0;
#X msg 124 249 gemList;
#X text 56 164 a gemList;
#X obj 124 219 alpha;
#X text 92 291 alpha turns on and off alpha blending. alpha automatically uses the glBlendFunc(GL_SRC_ALPHA \, GL_ONE_MINUS_SRC_ALPHA) function from OpenGL. If you want a different blending technique \, you will need to make your own external. The blending that alpha does is the "stereotypical" blending which you will usually want. In a nutshell \, any pixel which has an alpha component will be blended with the pixel that is in the frame buffer \, producing the usual "colored glass" effect. Beaware that the rendering order matters \, so you probably want to set the gemhead order number high so that the object is rendered after all of the non-alpha blended ones.;
#X text 124 54 alpha;
#X connect 0 0 5 0;
#X connect 1 0 5 0;
#X connect 2 0 5 0;
#X connect 5 0 3 0;
