[Intel 4400] Alpha textures are not receiving Ambient light.

[Dan-Linden]

Environment

Second Life Release 7.1.11.12022314244 (64bit)
Release Notes

You are at 115.5, 11.1, 22.8 in Bug Island 2 located at simhost-019b8bea6b2cc58b3.agni
SLURL: http://maps.secondlife.com/secondlife/Bug%20Island%202/116/11/23
(global coordinates 260,468.0, 249,355.0, 22.8)
Second Life Server 2024-10-15.11356152186
Release Notes

CPU: Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz (2394.46 MHz)
Memory: 8080 MB
OS Version: Microsoft Windows 10 64-bit (Build 19045.5198)
Graphics Card Vendor: Intel
Graphics Card: Intel(R) HD Graphics 4400

Windows Graphics Driver Version: 10.18.15.4268
OpenGL Version: 4.3.0 - Build 10.18.15.4268

Window size: 1366x705
Font Size Adjustment: 96pt
UI Scaling: 1
Draw distance: 128m
Bandwidth: 3000kbit/s
LOD factor: 1.375
Render quality: 3
Texture memory: 2048MB
Disk cache: Max size 1638.4 MB (2.7% used)

J2C Decoder Version: KDU v7.10.4
Audio Driver Version: OpenAL, version 1.1 ALSOFT 1.23.1 / 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: 0/790 (0.0%)
November 26 2024 10:40:54

Description

Alpha textures are not receiving Ambient light on Intel HD Graphics 4400 card

Reproduction steps

1. Log in with ExtraFPS viewer from https://github.com/secondlife/viewer/actions/runs/12022314244
2. Go to http://maps.secondlife.com/secondlife/Bug%20Island%202/116/11/23
3. Look at the bottom row of objects noted in this screenshot

Observed: The alpha textured objects are black.

Expected: The alpha texture objects should be colorful.

[DmitrySProductengine]

Passed QA.
Verified on the Second Life Release 7.1.11.12041172537 (64bit) on Win10 with Intel HD Graphics 4000 video card in the scope of IQA #401.
See the attached screenshot:

1. Expected - 7.1.11.12041172537