I have my gameplay with a HUD on ORTHO queue.
Then i want to put a MENU over all the screen with translucency. I've done it but my gameplay HUD dont get "covered" with my translucency (a quad with blend). How could i put some kind of layers on the HUD(ORTHO) so that i can render my menu OVER my gameplay HUD ?
Sounds like you could use setZOrder(), with a low value for the menu and a high value for the HUD.