Virtua Cop 3 - Aim Issues

[MarceloF1000]

Using DemulShooter 10.9.7.0 and GUN4IR.

Aim moves in random directions in mission select screen and during missions.

Aim works fine without DemulShooter hooked to the game.

Here is the debug file. Hopefully it will help find what is going on: Debug_2023-04-29_23-45-23.zip

When running with DemulShooter hooked, I use this control config in Cxbx:

Without DemulShooter hooked, I use this control config in Cxbx:

[MarceloF1000]

Tested with v 10.8.3

Aim is accurate with this version, but there is a huge 3 second input lag for any button pressed (trigger, reload).

[MarceloF1000]

Tried another combination: Cxbx Nov 20 2022 and DemulShooter 10.9.8

Aim is accurate, but input lag is still there. It starts with a 1 second lag and gets progressively worse. Unplayable unfortunately.

[argonlefou]

Tried another combination: Cxbx Nov 20 2022 and DemulShooter 10.9.8

This is indeed the specified last known working version specified in the wiki.

Now based of what I can see on your initial debug file, in-game calculated coordinates were good based on the position read from your lightgun and your screen/game position. Unfortunatelly, it's impossible to have a beter visibility as I can't tell :

• Were the gun data good
• Were the in-game data succesfully written in the emulator memory.

Aim is accurate, but input lag is still there. It starts with a 1 second lag and gets progressively worse. Unplayable unfortunately.

Be sure to remove the -v option from demulshooter if you're not debugging, this is the only cause of lag I can see.

[MarceloF1000]

I was careful to remove the -v option. The lag is there regardless. Not sure at this point what could be causing it. It only happens with DemulShooter hooked to the game.

[argonlefou]

I didn't get any lag last time I played through the game.

I'll try again within a few weeks if I have time to, to see if I can reproduce the behavior

I'll leave the ticket open if someone has the same issue

[MarceloF1000]

I was able to narrow down the issue to the Cxbx video configuration. Disabling v-sync resolved the issue. No more input lag.

[argonlefou]

Thanks for the feedback !