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Detail Preserving Simplification
Friday, May 23, 2003 | Permalink

Source code
DPS.zip (3.5 MB)


GL_ARB_vertex_buffer_object or GL_ATI_vertex_array_object
This is a demo of the Detail Preserving Simplification technique. Instead of using a fatass model with zillions of triangles you use a less complex model but use a normal map to get all the detail from the high resolution model but at a much more affordable performance hit.

The model is the famous Stanford bunny and the normal map was generated with ATi's NormalMapper utility available on the developer pages.

To compare different modes, hit the keys 1,2 and 3. It will toggle between DPS, normal lowres and normal hires. Notice how DPS has all the image quality of the hires model, but without the performance hit. Instead the performance is very close to that of a normal lowres model.

Should run on Radeon 9500+ and GFFX.