CODEWITHSUNDEEP
opengl
Wowzer
Wowzer

Reputation: 1161

What exactly is a vertex attribute?

I am new to opengl so I got confused about the terminology of vertex attributes and vertex. I wonder if someone could clarify for what exactly is a vertex attribute and how is it differ from a vertex.

Also, can you explain to me what does vertex attributes have to do with shaders?

Upvotes: 9

Views: 6340

Answers (1)

BDL
BDL

Reputation: 22165

A vertex attribute is an input variable to a shader that is supplied with per-vertex data. In OpenGL core profile, they are specified as in variables in a vertex shader and are backed by a GL_ARRAY_BUFFER. These variable can contain, for example, positions, normals or texture coordinates.

A vertex is the combination of all the vertex attributes that belong together.

Upvotes: 13

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