To indicate permeation properly with Fsx_sp2.
It is set up with Material_Editor of FSX_Gmax as follows.
1. Check Allow Bloom =Yes
2. Set Default Transparence=Yes (Click)
3. Z-Test=Yes (Checked)
4. Alpha Test level=About 50
5. Alpha Test Mode=greater Equal
6. Z-Write=Yes (Checked)
7. Double Sided= Yes (Checked)
It is indicated without problem if it is set up like this.