id summary reporter owner description type status priority milestone component version resolution keywords cc blockedby blocking notify_on_close platform project 9219 GLTF viewer colors differ from original ChimeraX colors kristen.browne@… Tom Goddard "{{{ From: ""Browne, Kristen (NIH/NIAID) [C]"" Subject: GLB color space from ChimeraX Date: June 20, 2023 at 12:22:32 PM PDT To: Tom Goddard Cc: ""Cruz, Phil (NIH/NIAID) [C]"" Tom: I’ve been noticing that the ChimeraX GLB file colors look significantly different in all the GLB viewers and Blender that I’ve tried (all look like left) when compared to when they are loaded into Chimera X (right). The ribbons have vertex color, the surfaces have a material from ChimeraX. All the small molecules are doing the same thing. The surface looks closer, but a bit muted. This could just be a matter of the material/lighting, but I wanted to check whether the glb colors are being saved in linear sRGB color space? I’ve read that saving in gamma space is the number one cause of muted colors in glb files. I haven’t had problems with the colors when loading glbs from babylon’s example files. image001.pngimage002.png image004.pngimage003.png I can color correct the files as part of my conversion workflow, but it was worth checking whether it was something happening on your end that might be fixed for others as well, Thanks! K Kristen Browne, MSc, MscBMC Contractor – MSC, Inc. | A Guidehouse Company 3D Modeling and Biovisualization Specialist Bioinformatics and Computational Biosciences Branch (BCBB) OCICB/OSMO/OD/NIAID/NIH 5601 Fishers Lane, Room 4A60 Rockville, MD 20852" defect assigned moderate Input/Output phil.cruz@… all ChimeraX