Shaders sometimes do not match the shader settings after Display settings are automatically adjusted.

[Dan-Linden]

Environment

Second Life Release 7.2.0.16729091892 (64bit)

Full Environment

Second Life Release 7.2.0.16729091892 (64bit)
Release Notes

You are at 204.9, 78.2, 54.6 in Bug Island 2 located at simhost-0b783bbd88a0f0f28.agni
SLURL: http://maps.secondlife.com/secondlife/Bug%20Island%202/205/78/55
(global coordinates 260,557.0, 249,422.0, 54.6)
Second Life Server 2025-07-25.16512260888
Release Notes

CPU: 12th Gen Intel(R) Core(TM) i7-12700F (2112 MHz)
Memory: 16221 MB
OS Version: Microsoft Windows 11 64-bit (Build 26100.4946)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: NVIDIA GeForce RTX 4070 Ti/PCIe/SSE2

Windows Graphics Driver Version: 32.0.15.7216
OpenGL Version: 4.6.0 NVIDIA 572.16

Window size: 2560x1369
Font Size Adjustment: 96pt
UI Scaling: 1
Draw distance: 128m
Bandwidth: 3000kbit/s
LOD factor: 1.5
Render quality: 4
Texture memory: 12282MB
Disk cache: Max size 1638.4 MB (0.1% used)

J2C Decoder Version: KDU v7.10.4
Audio Driver Version: OpenAL, version 1.1 ALSOFT 1.24.2 / OpenAL Community / OpenAL Soft: OpenAL Soft
Dullahan: 1.14.0.202408091639
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: 0/3,070 (0.0%)
August 21 2025 06:43:28

Description

Shaders sometimes do not match the shader settings after Display settings are automatically adjusted.

Reproduction steps

1. On a machine that normally defaults SL Graphics Quality to High:
2. Log in with a 7.1.10 viewer (https://releasenotes.secondlife.com/viewer/7.1.10.10800445603.html) and set the graphics to Mid+ so that water is opaque. (Preferences > Graphics > Advanced Settings > Transparent Water is Unchecked.)
3. Start a 7.2.0.16729091892 - 2025.05 viewer (https://releasenotes.secondlife.com/viewer/7.2.0.16729091892.html).
4. A dialog on the screen says "Display settings have been set to recommended levels because of a change to the rendering subsystem.". Graphics quality has been set to High and Transparent Water is checked.
5. Log in and look at the system water.

Observed: The system water is opaque.

Expected: The system water should be transparent. The shaders should match the shader settings.

Workaround: Change the Preferences > Graphics > Quality & Speed slider down, then back up, and the shaders will recompile and match the settings.

[akleshchev]

Unable to repro on 7.2.1. I checked caching and that should have wiped cache after an update from 7.1.10.

Howhever shader cache is poorly protected in case of multiple viewer instances. I will add version protection into the cache itself and add write protections like we do for everything else.

[Dan-Linden]

Reopened.
Tested on Second Life Release 7.2.2.17616393300 on Win11 in the scope of https://github.com/secondlife/iqa/issues/546

Used the Reproduction steps and in step 3 ran the 7.2.2.17616393300 viewer.

[akleshchev]

Does this repro if you clear shader cache between steps 2 and 3? This is unlikely to be caused by cache, old cache shouldn't load at all, but just making sure.