AMD Medi Viz DX10 demo: Exclusive high-res shots of the human head

Such visualizations require, in the case of AMD's Medi Viz demo, more than 512 MiByte video memory: The 3D textures, that contain the datasets of a single skull, need 576 MiByte VRAM on their own and additional 120 MiByte are required for the picture buffer.

The RV770 GPU that is used on the FireGL V8600, uses its calculating power of more than one Tera FLOPS (the "S” stands for second, not the plural of Tera Flop...) to extract the Iso surface in a dynamic process from the dataset onto a 64 x 64 x 64 grid. Combined with tiny Voxels (edge length is only 0.02 mm) those grids form thousands of triangles that are rendered to receive a high detail surface. This surface accelerates the Ray Casting that calculates the lighting of each pixel in the rendered volume in up to 600 steps. According to explanatory texts related to the tech demo, the full lighting model for each volume is computed at each step.


This makes real-time access to the visualized head possible and thus every anomaly, like a tumor for example, can be easily detected - a necessary surgery can be plan in every detail.

The AMD Medi Viz demo for the FireGL V8600 uses datasets of a human head taken from the Visible Human Project. The download of the demo is currently accessible via AMD's restricted developers' section only and according to the readme file, Windows Vista and a AMD FireGL V8600 with 1 GiByte VRAM are required.

We found an appropriate video on Youtube and put into this article so you can take a look at the demo yourself - apart from that we have pictures in our gallery.