object paining mode not displaying more than 16 filaments

[Batalhoti]

Is there an existing issue for this problem?

• [X] I have searched the existing issues

OrcaSlicer Version

2.2.0 RC

Operating System (OS)

Windows

OS Version

windows 11

Additional system information

No response

Printer

Voron

How to reproduce

Open Orca Slicer and load a 3D model.

Add 21 filaments.

Access the object painting mode.

Observe that only 16 filaments appear in the painting visualization.

Actual results

Only 16 filaments appear, while the rest are not displayed

Expected results

All created filaments should be visible and editable in the object painting mode

Project file & Debug log uploads

debug_Sun_Oct_20_17_57_08_31908.log.0.zip ments/assets/22b41e2d-329a-4fed-ab40-fbea016c815a)

Checklist of files to include

• [X] Log file
• [ ] Project file

Anything else?

When using the object painting mode, I noticed that only 16 filament are displayed in the painting visualization, not the 21 I have defined. This makes it difficult to adjust and finalize the design according to specific needs.

[Noisyfox]

This is a technical limitation in current code that the max total number of painting colors are limited to 16.