[Jmol-developers] Graphics3D question: Transparent background?

[Charles(Qian) Xie]

Hello Jmol developers: I am wondering if there is an easy way to render just the atoms and bonds without drawing the background, in other words, to render a transparent background. Platform3D.clearScreenBuffer seems to be called to set the background color every time before a Jmol image is synthesized. From the name of the argument passed to that method, one could infer that giving an alpha value might do it (it however does not seem to work). I would appreciate if you could tell where in the source code I should look at in order to do this. Thanks in advance, Charles