With BFC enabled, I get the same effect in LDView that you see in LDCad. Here are my steps:
Orion: LDView does indeed disable BFC for the transparent portions of the part, but not for the opaque portions of the part.
- Disable "Process LDConfig.ldr" in LDView's preferences so that the IR glass isn't so dark.
- Set LDView's background color to bright green.
- Enable BFC (with red/green/blue faces disabled).
- Load 58123.dat all by itself.
Orion: LDView does indeed disable BFC for the transparent portions of the part, but not for the opaque portions of the part.