Vertex shader

Vertex shader (abbreviation VS) is a shader program, normally excecuted on the Graphics processing unit.

Function

A Vertex-Shader serves to manipulate the geometry of an object of a scene. Therefore the form of the object changes and this changes the appearance of the object.

With the help of vertex Shader effects as vertex lighting, terrain-/Object-deformation, waves or frog eye perspective are possible.

Programming

Vertex shaders are programmed in the following languages: Assembler, Cg, GLSL, HLSL.

See also

• Vertex
• Shader
• Pixel shader
• Geometry shader
• Direct3D
• OpenGL

Weblinks

• Toymaker - Vertex Shaders. Drei Vertex-Shader-Beispiele
• GameDev - Terrain Geomorphing in the Vertex Shader