GPU PRO 3

I

Geometry

Manipulation

This part on geometry manipulation focuses on the ability of graphics processing

units (GPUs) to process and generate geometry in exciting ways.

The first chapter in this section, “Vertex Shader Tessellation” by Holger Gruen

presents a method to implement tessellation using only the vertex shader. It

requires DirectX 10 and above to work. This method does not require any

data in addition to the already available vertex data, in contrast to older tech-

niques that were called “Instanced Tessellation.” It relies solely on the delivery

of SV_VertexID and uses the original vertex and index buffers as input shader

resources.

The next