Unreal Engine Issues and Bug Tracker (RC-3296)

Steps to Reproduce

Open the project and link the images:
1. G:\Shared drives\RealityScan\Bugsbunny\RC-3296 Linux It is not possible to export mask layer in JPG 24-bit BRG or PNG other than 32-bit BGRA
2. [Link Removed]
Export Registration, File type: COLMAP
In the Export image settings of the Export Registration dialog, set:
1. [Image Removed]

1. Most importantly:
  1. Layer to Mask layer, 8-bit gray
  2. Image format to jpg / jpeg
  3. Pixel format 24-bit BGR
Press Ok

Workaround

Use PNG 32-bit BGRA.

There's no existing public thread on this issue, so head over to Questions & Answers just mention RC-3296 in the post.

0	Login to Vote

Unresolved

Component	RS - Infrastructure
Affects Versions	rs 2.1.1

Created	Mar 13, 2026
Updated	Jun 10, 2026

Linux: In COLMAP export, it is not possible to export the mask layer in JPG 24-bit BRG or in PNG 24-bit BRG