Colonic, anyone?

Here’s a little render put together for a webpage we’re doing on colon cancer screening.


http://www.anatomicaltravel.com/research/wp-content/uploads/colonglow-crisp-c-b04-wm-400k.mp4

Note: 2.45 MB in size, might not be up forever, don’t pass around, beta eyes only, etc.

No geometry here, just converted from voxels directly to points. Would have gone back to voxels, but didn’t need to, I was getting good point-to-pixel ratios, and I was using env map reflections and an omni.

Everything done in Krakatoa, including the bluish highlight, which is just an unlit transformed PRTLoader with a lookat to the camera.

It uses Phong for the main part of the colon; Isotropic, H-G, and Schlick for the glowing parts; the highlight is unlit.

The final used for the site has some filtering and color grading going on in Fusion, but this is a more “pure” render, very hands off.

  • Chad

Cool still, video comes without picture though :frowning: (using QT ver. 7.5.5), didn’t think I’d ever be excited to see a colon in action:)

Hmm… It’s just an h.264 MP4. We don’t use QT anymore, just MPC or VLC.

VLC :sunglasses: :nerd:

That’s one clean colon :smiley:

Really like the chromatic look in it!

That chromatic look is actually just rendering the normals as color (which is something new in 1.5).

I see, I gather you did that to the Chameleon as well? It had that nice underlying tone to it too.

The chameleon has normals, but I only used those for the environment mapped reflection, not the actual color. In fact, the chameleon colors (other than the environment map) was nothing more than a 1D LUT.

  • Chad

This looks great! :sunglasses:

“including the bluish highlight, which is just an unlit transformed PRTLoader with a lookat to the camera.”

I didn’t get this… why is set to lookat camera?

It’s set to look at the camera so it stays the same shape and always points the same way. It’s supposed to look like a 2D graphic element, but be properly occluded by the colon, so you get a good sense of depth.