help > RE: Trouble loading 4D NIFTI images on Mac OS Intel (Sonoma 14.4)
Mar 22, 2024  01:03 PM | Chris Rorden
RE: Trouble loading 4D NIFTI images on Mac OS Intel (Sonoma 14.4)

I can not replicate this on any of my machines. It appears that the computer that is causing issues is a MacPro 7,1 from 2019 which were only offered with AMD Radeon graphics cards https://support.apple.com/en-us/102887


Macs with AMD graphics cards depend on Apple drivers, and these have not seen much support, especially as Apple has moved to manufacturing their graphics cards in house. I think it is telling that the graphics driver reports "ATI Technologies Inc.; OpenGL = 2.1", as AMD acquired ATI in 2006!


https://en.wikipedia.org/wiki/ATI_Technologies


Once upon a time, ATI cards only supported power of two textures, and your data is not a power of two: 207x246x215. 


You might want to see if the version of MRIcroGL that uses Metal directly instead of OpenGL (MRIcroMTLforMacOS_Sonoma) works:


https://github.com/rordenlab/MRIcroGL/releases


If this fails, I am afraid you are at the mercy of Apple's driver team, that has little incentive to support this old but capable hardware.

Threaded View

TitleAuthorDate
Norberto Nawa Mar 22, 2024
RE: Trouble loading 4D NIFTI images on Mac OS Intel (Sonoma 14.4)
Chris Rorden Mar 22, 2024
Norberto Nawa Apr 1, 2024