Ahoy from the modding front. Today I took a break from my secret Tres project and went into Drac~Test to re-establish a test which was lost to an un-backed version of TstScnRld. I set up a test to represent all the default AlphaChannels available to Trespasser (custom ones can be set using an original ActionType). Setting up a test of AlphaChannels 0 to 20, it appears that only 0 to 15 (a binary count) are used. From my previous case to test these, I knew already that the final few were pre-colored yellow. However... my previous test did not institute a black background on which to view the transparency.
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TPass020.BMP [ 1.37 MiB | Viewed 1275 times ]
And... A more obvious quality of these channels is that there is a repeating occurance of more- to less- opakeness as the numbers ascend (in this case, right to left). In the previous version of the test, I'd thought these were simple repetitions to fill space, and that perhaps the desgining dev eventually got board and made one of the sets colored.
No, indeed, if you look you may see that each ascending transparency set has its own coloration. There are a total of 5 sets if you count the final yellow ones.
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TresAlphaChannels01.jpg [ 214.32 KiB | Viewed 1275 times ]
This is quite fascinating, and provides some small amount of decision basis for the selection of an AlphaChannel beyond simple transparency level. Neat things may be done with this, to be sure.