Forum

How to save an R16 texture to a file?

vvvv beta question
#1

I’m trying to save a Kinect/Kinect2 depth texture to a file in a lossless format where it can be read back in and used just like the output of the Depth node. Nothing I have tried so far works.

Is there some way to save a monochrome 16 bit texture to a file that preserves the full 16 bits? The DX9 Writer appears to scale it into 8 bits, losing resolution, and the DX11 Writer appears to just take the low 8 bits or does some kind of normalization, changing the brightness which screws up the depth.

Thanks!

#2

have you tried with the .dds format? i’d assume that would save the bits straight.

1 Like
#3

have done exactly that with dds before

I’d love to know if there was some lossless video codec which could do the same. (Is lossless really lossless?)

#4

Ha, apparently they call it ‘deep colour’ :)

http://avisynth.nl/index.php/High_bit-depth_Support_with_Avisynth

#5

this looks interesting re: 16 bit video. http://diracvideo.org/

Sorry for derailing your thread md!

#6

@joreg - yup, just did and it Info does look correct, thanks! I’ll mark this as answered as soon as I verifyy by running it though my pointcloud shader.

But it does look like a bug that the DX9 and DX11 texture writers save out different files, I’ll post a test case and examples. And I just noticed the DX11 Info gives a red enumeration IOBox on the texture format… seems like I’ve seen that elsewhere.

@mrboni - no problemo, I would like that as well! It looks like the Y416 format would work: http://msdn.microsoft.com/en-us/library/windows/desktop/bb970578%28v=vs.85%29.aspx but no idea what supports it. I have not researched this before, but something like that must exist for film/video production.

#7

@mrboni - found a discussion here: https://groups.google.com/forum/#!topic/microsoft.public.win32.programmer.directx.video/-PooAA_3sOY with a link to a converter filter. I am not fluent with DirectX filters, so not sure how to use this info…

© vvvv group