Ok! I am very confused. The FSX SDK says one thing in one part and then completely says some else in another. (Below is an image explaining what I mean)
So, if you read the information in the location one that shows the AlphTestValue to be a FLOAT. In location 2 it gives and example of a value for AlphaTestValue of 132.13005. But If you look in location 3 you will see that the SDK gives a value rang for AlphaTestValue from 0.0 - 1.0. "Very, Very Confusing"
So, I opened the test model in Arno's MCX to see what values that his program allow for AlphaTestValue. And what I found even confused me more. The MCX program allow a number from 0 to a number high enough that it has to be put in scientific notation. This is a very large range! So what I have come to the conclusion, is that we are going to have to set a reasonable range let's say 0.0 - 1000.0 and see how it works. We will have to do a lot of testing.
Now I have been successful in causing my transparent location to be transparent and not to be transparent by changing the AlphaTestValue in my test file. (See Images Below)
To get the transparent location to be fully transparent in FSX, I have the following setting in Blender FSX Materiel settings: Framebuffer Blend = Source Blend:SrcAlpha, Dest Blend:InvSrcAlpha, Z-Test Alpha is:True, Alpha Test Level: 128, and you must have in the enhanced parameters Z-Write Alpha checked.
So, you can see by the image below you can see through the wall that I a placed in FSX.
I decreased the Alpha test value below 128 and the transparent parts of the wall became less transparent. (See Image Below)
So, I believe that the function is working. I just do not know what the max value should be set to. I am uploading a new beta test of the tool-set. You can download it from above.
Thanks, Kris