RHS Feedback - AFRF
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IDProjectCategoryView StatusDate SubmittedLast Update
0003115AFRF[All Projects] Generalpublic2017-03-15 08:272017-03-24 15:40
ReporterDeadlyDays 
Assigned To 
PrioritynoneSeverityminorReproducibilityalways
StatusnewResolutionopen 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Is it a wish/request?No
RHS version
Arma 3 versionRC
Did you used any other mod when the error occurred?No
Which mods?
Summary0003115: Helicopter Gunner AI overcompensate for Vehicle Velocity (MI-28N used for test)
DescriptionIn RHS Helicopters tested so far-
AI in gunner slot will overcompensate in leading target for own vehicles velocity.
Ex. You are flying perpendicular to a non-moving tank, moving to your own right in relation to the tank. The AI will compensate to the left of the target to make up for the difference in its own vehicles speed to the stationary target. This compensation is too much and the shells all land to the left of the vehicle. This applies to all axis's.

This effect is most noticeable in Helicopters that have gun-sight cams in the pilots control panel. I have tested and reproduced the issue in the Mi-28N.
Steps To Reproduce-Open Editor on Virtual Reality
-Place Bluefor Tank
-Remove Bluefor commander and gunner AI
-Place Mi-28N in front of Bluefor Tank so Gunner cannot shoot tank.
-Right click on the Mi-28N pilot and select play as character
-Turn on Manual Fire
-Fly helicopter to Approx 600m distance from tank, Approx 200Mm Altitude for most noticeable effect.
-Turn on AutoHover and turn to face tank
-Press 2 and select Tank to have AI target tank.
-Double tap alt to free camera, look at the dash camera for AI and right click to zoom.
-Shoot to show AI compensates for distance correctly
-Increase altitude, while increasing altitude shoot. AI will undershoot.
-Decrease altitude, while decreasing altitude shoot. AI will overshoot.
-Turn off autohover
-Lean aircraft Right to strafe right. Shoot. AI will hit to the left of target.
-Lean aircraft Left to strafe Left. Shoot. AI will hit to the right of target.
-Lean aircraft forward to move forward. Shoot. AI will Undershoot.
-Lean aircraft backwards to move backwards. Shoot. AI will overshoot.
Additional InformationNot moving directly towards or away from target makes effect most noticeable because moving towards/away from target has the least compensation needed for speed.

This effects Main and RC branch.(Noticed on Main, tested on RC for video)
This effects takes place with and without other mods.(have tested)
This effect does not occur in Vanilla Units.(have tested)
Video https://youtu.be/u3vR_8244WI [^]
Video has other mods loaded, but mods to not effect vehicle or ai.
Video has RC branch loaded.

Suspect this effects other RHS helos, but effect is less noticeable without a camera to watch.
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Issue History
Date ModifiedUsernameFieldChange
2017-03-15 08:27DeadlyDaysNew Issue
2017-03-15 08:30DeadlyDaysSteps to Reproduce Updatedbug_revision_view_page.php?rev_id=3991#r3991
2017-03-21 11:21ProtossMasterNote Added: 0005999
2017-03-21 23:34RNDChrisNote Added: 0006007
2017-03-24 15:38DeadlyDaysNote Added: 0006016
2017-03-24 15:40DeadlyDaysNote Edited: 0006016bug_revision_view_page.php?bugnote_id=6016#r4014

Notes
(0005999)
ProtossMaster   
2017-03-21 11:21   
This is reproducible. It is very noticeable on a RHS CTI server that I play on. When i go into editor even the lazer designator aim above the tanks instead of the targets. You cant have an apache gunner laze a tank as the lazer will aim above the tank's turret.

Please fix, I feel this issue should have a higher severity.
(0006007)
RNDChris   
2017-03-21 23:34   
I also confirmed that this reproducible using listed steps. Definitely a pretty bad issue.
(0006016)
DeadlyDays   
2017-03-24 15:38   
(edited on: 2017-03-24 15:40)
config edit tests have shown me the issue is with the weapons. The effect is mostly noticeable on Helicopters due to the speeds traveled but appears systemic to all RHS weapons.

BallisticsComputer is the field in question, RHS has it set to 0(off) in all weapons I've run across. This is the value that controls targeting prediction and compensation. This means the inability to compensate for the velocity of the vehicle the AI is in effects all vehicles.