0003115: Helicopter Gunner AI overcompensate for Vehicle Velocity (MI-28N used for test) - RHS Feedback

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ID

Project

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Date Submitted

Last Update

0003115

AFRF

[All Projects] General

public

2017-03-15 08:27

2017-03-24 15:40

Reporter

DeadlyDays

Assigned To

Priority

none

Severity

minor

Reproducibility

always

Status

new

Resolution

open

Platform

OS

OS Version

Product Version

Target Version

Fixed in Version

Summary

0003115: Helicopter Gunner AI overcompensate for Vehicle Velocity (MI-28N used for test)

Description

In 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 Information

Not 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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Is it a wish/request?

No

RHS version

Arma 3 version

RC

Did you used any other mod when the error occurred?

No

Which mods?

Relationships

Notes
(0005999) ProtossMaster (reporter) 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 (reporter) 2017-03-21 23:34	I also confirmed that this reproducible using listed steps. Definitely a pretty bad issue.

(0006016) DeadlyDays (reporter) 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.

Issue History
Date Modified	Username	Field	Change
2017-03-15 08:27	DeadlyDays	New Issue
2017-03-15 08:30	DeadlyDays	Steps to Reproduce Updated	View Revisions
2017-03-21 11:21	ProtossMaster	Note Added: 0005999
2017-03-21 23:34	RNDChris	Note Added: 0006007
2017-03-24 15:38	DeadlyDays	Note Added: 0006016
2017-03-24 15:40	DeadlyDays	Note Edited: 0006016	View Revisions

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