With the unlock forcing single-vblank presents, frame-locked content (menus,
hangar, in-engine cutscenes) free-runs far too fast while only gameplay should.
Pace the guest vblank dynamically: free-run only while the 3D world is being
rendered, otherwise force the native 60Hz.
"World is rendering" is detected from the GPU side - the command processor
stamps a heartbeat (NotifyWorldCompositorDraw) whenever a draw uses the
world/effects compositor pixel shader (ucode 17e5e4ac3e713245), which runs
every frame of 3D but never in the 2D front-end. The present timing hook then
sets a guest-vblank Hz override via the new GraphicsSystem hook. Only engages
under the unlock; ac6_dynamic_vblank=false restores the plain always-on unlock.
Dipshet
2b52e5e2c8