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I'm playing around with ways to visualize an MRI image of my head. I've extracted my brain, so there are non-zero brain voxels in the center, and zeros to the edge of the image.

I'm imagining having a corner cut out of my brain to expose its interior voxels like this: enter image description here

Additionally, I've also got voxel-wise statistical data that I'd like to use as a semi-transparent overlay on the anatomical.

Is this setup possible?

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  • $\begingroup$ I think you can do this with BI, provided the format your voxel data is in is supported. $\endgroup$ – gandalf3 Aug 14 '14 at 22:23
  • $\begingroup$ I've got it in 8-bit raw and can load it in BI.. I can't make it look like anything other than a smoke cloud though.. $\endgroup$ – ajwood Aug 15 '14 at 11:48
  • $\begingroup$ Hm.. I would think it would be possible with some nodes and procedural textures (I know it would be possible in cycles, if we could only get the voxel data..), but I don't know BI nodes very well and I didn't have much luck loading in some test voxel data. $\endgroup$ – gandalf3 Aug 15 '14 at 20:20
  • $\begingroup$ I'm very excited about voxels coming soon to cycles! Thanks for trying :) $\endgroup$ – ajwood Aug 15 '14 at 20:29
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Here's my BI setup:

material:

enter image description here

textures:

enter image description here

The first texture is a nice dense whole brain object, almost making the voxel data appear like a surface. The second texture makes the voxel values affect reflection color, which is important for inside the object.

I used a simple boolean modified to cut away the corner chunk:

enter image description here

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  • $\begingroup$ Just curious. Did you actually get voxel data of your own head, or do you by "my brain" mean the brain that you're modelling? $\endgroup$ – user7952 Dec 12 '14 at 22:13
  • $\begingroup$ I'm using an MRI of a mouse in this question.. But I have an MRI of my brain that I've been playing a lot with :) $\endgroup$ – ajwood Dec 13 '14 at 6:09
  • $\begingroup$ And the hospital here wouldn't even give me copies of the images from my fundus photography. :( $\endgroup$ – user7952 Dec 13 '14 at 6:15
  • $\begingroup$ Awww that sucks! This was for research at a university, and they didn't mind giving me the image :) imgur.com/FF9U5Ql $\endgroup$ – ajwood Dec 14 '14 at 2:06

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