What is a Vertex Shader?

In Computer Graphics, the term "vertex shader" refers to the four-dimensional (4D) program that defines how vertices are arranged in space.

Oscar de la Hera Gomez
Written by Oscar de la Hera Gomez
First published on 03/26/2024 at 11:08
Last Updated on 03/26/2024 at 14:24
<p>A flower that represents spatial computing with the text "Vertex Shader" beneath it.</p>

In Computer Graphics, the term "vertex shader" refers to the four-dimensional (4D) program that defines how vertices are arranged in space.

SubscribeHow are Computer Graphics (CG) Rendered?

A vertex shader is the part of a shader that defines the way that vertices are laid out within an experience.

What is a Shader?What are Vertices in Spatial Computing?
<p>An example of a plane whose vertices have been displaced through a shader.</p>

Vertices can be displaced using a vertex shader.

Vertex shader programs can be used as a means to pass the vertex positional data of a geometry, model or object directly to the fragment shader or can additionally be used to animate or set the way the geometry, model or object's vertices/form behaves at instances or over time.

What are Geometries in Spatial Computing?What are Models in Spatial Computing?What are Objects in Spatial Computing?

Vertex shader programs are capable of taking in variables defined by the software (i.e. attributes and uniforms) as well as passing vertex specific data to the fragment shader (i.e. varying or in/out).

What is a Fragment Shader?What are Attributes in Shaders?What are Uniform Variables in Shaders?What are Varying or In/Out Variables in Shaders?

Looking for tutorials on how to implement shaders?

For examples on how to implement shaders in WebGL and Metal (Apple), consult the guides below.

Apple Metal Resources GuideReact, ThreeJS & GLSL Resources

Looking to learn more about how computer graphics (CG) are rendered?

Consult our article below to learn more about how computer graphics are rendered.

How are Computer Graphics (CG) Rendered?

Looking to learn more about Technology, Augmented Reality, Virtual Reality, Mixed Reality or Spatial Computing?

Search our blog to find educational content on technology, A/R, V/R, M/R and spatial computing.

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