Transparency Attrib mode options

Scripting Issues
1

I’m wondering if someone can explain to me what the different mode options for transparency do, and their purpose. I’m curious, because I haven’t been able to find too much about them in the documentation. I did find this page

http://www.panda3d.org/manual/index.php/Transparency_and_Blending

Which offers some insight into the dual and multisample modes, but I’m still in the dark about the following modes:
MNone (Is this the default, no transparency at all mode?)
MNotUsed (how does this differ from none, exactly?)
MBinary (Is this an on-off mode, with only fully transparent and fully opaque options?)

2

Yes MNone is no transparency, this is usually the default, but for example if there is something transparent in the EGG file Panda will usually apply a transparency mode automatically.
Also correct, MBinary is on-off, also known as “Alpha Test” or “Cutout”.
The others are explained here (5th post): [url][SOLVED] render artifacts with transparent faces?]
MNotUsed probably means that particular mode is actually “not used”, likely there was another transparency mode before that was removed.