Ok after an hour
of testing I found the reason
set luminosity 100% no go
set transparency 100 no reflection no go
then I delete whole 3d hud, and still dark hud!and here I started thinking wtf?
and I removed the blue glass on the front and voila! normal pure hud.
now the question is what causes this problem because Viper set window reflections 20% transparency 93 luminosity glass 100%.