Archive for UiB

Some masters stuff..

// September 8th, 2009 // No Comments » // UiB, visualization

Vimeo video..

London + viz stuff..

// April 17th, 2009 // No Comments » // Teknologi, UiB, visualization

Multimodal

Just came back from London, had a fun few days enjoying the low GBP value.. Weather was really nice too, relaxed in Hyde park under a (semi)-blue sky and 21C.

Now it’s back to school and work, currently doing some multimodal visualization. Here’s an example I’m working on, combining CT, MRI and PET of a monkey. Showing a slab of volume rendered CT (bones) and PET (brain activity) on top of a MRI slice..

Illustrative Volume Rendering

// April 5th, 2009 // No Comments » // Teknologi, UiB

This semester I’ve been doing a bit of shader programming (GLSL), and have implemented a series of illustrative techniques for volume rendering. The goal was to simulate some of the techniques used by illustrators and apply them to volumetric data (such as a CT-scan).

The first is a CT-dataset rendered using a classic cartoon-shader, it also includes curvature-controlled contours:

Cartoon-Shader with contours

Same dataset using gooch-shading, includes gooch-splashback and contours:

Gooch-shading

Last is a CT-scan of a gecko, using different contour techniques – curvature controlled for the edges, and a low exponent gradient curvature for a bit of shading near the edges.. Looks pretty close to something one might draw on a piece of paper.

Drawing.

Oh, and it’s all done in real time.. I love GPUs.. More of my illustravis stuff can be seen at: http://www.student.uib.no/~sei081/visualization/illust/

Bergen 3D

// May 22nd, 2008 // No Comments » // Linux, UiB

I’ve spent some time working on a virtual 3d bergen as a part of INF251 (Computer Graphics) this semester. Basically what we did was to render the terrain based on a height map (a file containing a height value at every x,y position), modeled some buildings, added textures, spline based camera paths.. etc..

Mine was developed on linux and uses Glut, GLEW, GLM, DevIL, Vmath.. etc.. You can fly around in Bergen using FPS-style controls (WASD+RF/mouselook).

See my page over at the university for som larger screenshots and a movie..