0004043: Map04 3d Floor glitch - MantisBT

Zandronum

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ID

Project

Category

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Date Submitted

Last Update

0004043

Zandronum

[All Projects] Bug

public

2022-10-02 23:06

2024-03-13 16:00

Reporter

auratoostronk

Assigned To

Priority

high

Severity

major

Reproducibility

always

Status

confirmed

Resolution

open

Platform

OS

OS Version

Product Version

3.1

Target Version

3.2

Fixed in Version

Summary

0004043: Map04 3d Floor glitch

Description

Thought I should put this glitch on the tracker even though its been around for a while. Sometimes, dying on top of a 3d floor while holding a flag will cause the flag to visually appear on top of the 3d floor, but it actually spawns below it.

Steps To Reproduce

grab a flag
die while running off a 3d floor
try to pick up the flag. sometimes it works as intended, sometimes you'll go through it because its on the floor and not on top.

3dfloor_dropdesync_01.wad [^] (12,830 bytes) 2024-03-13 15:57

Screenshot_Doom_20240313_165558.png [^] (50,548 bytes) 2024-03-13 15:57

Relationships

Notes
(0022429) WaTaKiD (updater) 2022-10-02 23:12	please provide an example wad that can showcase the issue

(0022431) Kaminsky (developer) 2022-10-03 01:04	I'm assuming that you're referring to MAP04 "Ralphis's Magical Ice Forts" from anthctf.wad, right? If so, then just to be clear, that map doesn't actually use 3D floors but invisible bridges. What is "compat_bridgedrops" set to when the issue occurs? It should be disabled to prevent non-solid actors like flags from dropping through bridges.

(0022432) auratoostronk (reporter) 2022-10-07 22:12	I think the bug is more prominent on 3d floors, but also happens on solid ledges. I think the name came from a video of the bug occurring on Ralphis's Magical Ice Forts on one of the solid pillars, not on one of the bridges. In any case, I've seen it happen a few times on the 2nd map of AuraCTF, "Trenchfoot". 'https://allfearthesentinel.net/zandronum/download.php?file=auractf.pk3 [^]' Try going to map ACTF02. Compat_bridgedrops should be allowing flags to fall through bridges when this bug occurs.

(0022433) WaTaKiD (updater) 2022-10-07 23:21	'https://www.youtube.com/watch?v=O5Md55A__Lk [^]' i made a video while testing this on actf02, can you confirm that at about 0:20 and 1:17 is the issue being reported?

(0022503) auratoostronk (reporter) 2022-11-30 05:21	Yes, this is the bug.

(0023384) unknownna (updater) 2024-03-13 16:00	With the stripped down example wad, this is 100% reproducible if you stand on the ledge like in the attached screenshot. Could this maybe be an easy fix? Send important player-dropped items at full precision. It would be important for competitive players to have this fixed.

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Issue History
Date Modified	Username	Field	Change
2022-10-02 23:06	auratoostronk	New Issue
2022-10-02 23:12	WaTaKiD	Note Added: 0022429
2022-10-03 01:04	Kaminsky	Note Added: 0022431
2022-10-07 22:12	auratoostronk	Note Added: 0022432
2022-10-07 23:21	WaTaKiD	Note Added: 0022433
2022-11-30 05:21	auratoostronk	Note Added: 0022503
2022-11-30 06:02	WaTaKiD	Status	new => confirmed
2022-12-01 13:15	Kaminsky	Target Version	=> 3.2
2024-03-13 15:57	unknownna	File Added: 3dfloor_dropdesync_01.wad
2024-03-13 15:57	unknownna	File Added: Screenshot_Doom_20240313_165558.png
2024-03-13 16:00	unknownna	Note Added: 0023384
2024-03-13 16:00	unknownna	Priority	normal => high
2024-03-13 16:00	unknownna	Severity	minor => major
2024-03-13 16:00	unknownna	Reproducibility	sometimes => always

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