Property lines are visible through avatars and objects when 'Antialiasing' setting is disabled or 'SMAA'

[sergiiiproductengine]

Steps to reproduce:

1. Login to the 7.1.12.12258017789 viewer.
2. Go to Me > Preferences > Graphics and change 'Quality & speed' to Low or Low-Mid
   (Alternatively, set 'Antialiasing' setting in the 'Advanced graphics preferences' to 'Disabled' or 'SMAA' on any 'Quality & speed' setting).
3. Go to World > Show and check 'Property Lines' setting (or use ⌘⌥⇧P/Ctrl+Alt+Shift+P combination).
4. Observe on property lines through avatar and objects.

Actual result:
Property lines are visible through avatars and objects when 'Antialiasing' setting is disabled or 'SMAA'.

Actual screenshot:

Expected result:
Property lines should not be visible through avatars and objects when 'Antialiasing' setting is disabled or 'SMAA'.

Expected screenshot:

Additional info:
The issue is not reproduced on the current release viewer (7.1.11.12363455226).
The issue is not reproduced when 'Antialiasing' setting is set to 'FXAA'.
The issue is reproduced on Win10/Win11/OSX.

Environment

Second Life Release 7.1.12.12258017789 (64bit)
Release Notes

You are at 128.2, 67.2, 40.6 in Product Engine 2 located at simhost-01214aa3a784ac0d5.agni
SLURL: http://maps.secondlife.com/secondlife/Product%20Engine%202/128/67/41
(global coordinates 337024.0, 307267.0, 40.6)
Second Life Server 2024-11-25.12013542687
Release Notes

CPU: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz (2200 MHz)
Memory: 16384 MB
OS Version: macOS 12.7.6 Darwin 21.6.0 Darwin Kernel Version 21.6.0: Mon Jun 24 00:56:10 PDT 2024; root:xnu-8020.240.18.709.2~1/RELEASE_X86_64 x86_64
Graphics Card Vendor: ATI Technologies Inc.
Graphics Card: AMD Radeon Pro 555X OpenGL Engine

OpenGL Version: 4.1 ATI-4.8.101

Window size: 1920x1070
Font Size Adjustment: 96pt
UI Scaling: 1
Draw distance: 96m
Bandwidth: 3000kbit/s
LOD factor: 1.125
Render quality: 1
Texture memory: 4096MB
Disk cache: Max size 1638.4 MB (2.2% used)
HiDPI display mode:

RestrainedLove API: (disabled)
J2C Decoder Version: KDU v8.4.1
Audio Driver Version: OpenAL, version 1.1 ALSOFT 1.23.1 / OpenAL Community / OpenAL Soft: OpenAL Soft
Dullahan: 1.14.0.202408091638
CEF: 118.4.1+g3dd6078+chromium-118.0.5993.54
Chromium: 118.0.5993.54
LibVLC Version: 3.0.21
Voice Server Version: Vivox 4.10.0000.32327.5fc3fe7c.5942f08

Packets Lost: 0/578 (0.0%)
January 07 2025 03:03:39

[AtlasLinden]

Also reproduced on Windows 11 upon disabling Antialiasing

[sergiiiproductengine]

After some investigation, it was verified that the issue is reproducible on Win10, Win11 and OSX when 'Antialiasing' setting in 'Advanced graphics preferences' is set to 'Disabled' or 'SMAA'.

The ticket was updated accordingly.