GLTF Import: Rigged meshes disappear when attached

[Geenz]

Environment

Second Life Test 7.1.14.251291909 (64bit)
Release Notes
Build Configuration RelWithDebInfo

You are at 92.2, 128.0, 22.9 in Avalon Aviary located at simhost-0ed1af4f6c09b0a7a.agni
SLURL: http://maps.secondlife.com/secondlife/Avalon%20Aviary/92/128/23
(global coordinates 252,764.0, 288,128.0, 22.9)
Second Life Preflight 2025-04-24.14649112505
Release Notes

CPU: AMD Ryzen 9 7950X3D 16-Core Processor (4192.04 MHz)
Memory: 97939 MB
OS Version: Microsoft Windows 11 64-bit (Build 26100.4061)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: NVIDIA GeForce RTX 3090/PCIe/SSE2

Windows Graphics Driver Version: 32.0.15.7640
OpenGL Version: 4.6.0 NVIDIA 576.40

Window size: 2558x1360
Font Size Adjustment: 96pt
UI Scaling: 1
Draw distance: 256m
Bandwidth: 3000kbit/s
LOD factor: 2
Render quality: 6
Texture memory: 24576MB
Disk cache: Max size 1638.4 MB (25.2% 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: Secondlife WebRTC Gateway

Packets Lost: 0/288 (0.0%)
May 14 2025 08:53:49

Description

Uploading a rigged mesh will result in the mesh not being visible in the upload preview. However, it will appear in world. Attempting to attach it will result in the mesh disappearing.

Reproduction steps

1. Upload rigged mesh
2. Rez it in-world
3. Attempt to attach it

[aiaustin]

This may or may not be related, but uploading any simple GLTF/GLB mesh (unrigged) and attaching it to an avatar, the mesh does not appear. An example might be a sword. but it seems to apply to any glTF/GLB mesh. Observed in all glTF Mesh Upload Test viewers I have tried but an example is Second Life Test 7.1.14.15099025312 which I believe incorporates the commits mentioned above now.

[akleshchev]

This may or may not be related, but uploading any simple GLTF/GLB mesh (unrigged) and attaching it to an avatar, the mesh does not appear.

Riggin simply isn't implemented. That's why it isn't visible in preview. Please file a separate ticket for a missing unrigged mesh.

[aiaustin]

Unrigged GLB meshes not showing in preview window and when uploaded they can be rezzed in world but do not appear when attached to an avatar. Usual current issue of needing to hit the "Clear setting and reset form" to get rid of the "Materials of model is not a subset of reference model". I see that even on the simplest untextured cube exported from Blender to GLB. Do you want those reported now or wait for first proper gltf-mesh-import Project Viewer?

As noted, I will wait for a project viewer. But just in case, I add here the simplest cube with no texture and unrigged that shows all three issues above.

Cube-Blank.zip