Export/Print as 16 bit image?

Rhino
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1

For an advanced 3d printer application I need to export my rhino scene as greyscale heightmap as 16 bit image. I’m not talking about rendering, but using the ‘print’ command

Using a custom OpgenGL shader in GH I can make this heightmap, but when I print the view from Rhino, the resulting tiff or png file is in 8-bit. Is exporting to 16-bit supported and where can I specify or set this option? There where some thoughts in the past to add this feature to R7: Support higher-bit channels for PNG and TIFF : RH-64094 (myjetbrains.com)

It seems EXR does support 16bit, but this is noy included as image format in print menu

2

After reading the info in YouTrack it seems unlikely that they will change the imaging library to export 16bit / channel in PNG or TIFF given that EXR works.

3

Then just do a render and save to EXR, instead of the antiquated “print to file” tool that was weird and obsolete in Rhino 1 days.