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Editorial Team
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Asked: 2026-05-24T13:48:50+00:00

I was reading: Dissecting Display, Chapter 1. Hello, Triangle! . What exactly does glEnableVertexAttribArray

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I was reading: Dissecting Display, Chapter 1. Hello, Triangle!.

What exactly does glEnableVertexAttribArray do? I think it enables the use of a given VBO, but I am not sure.

I thought that is what glEnableClientState(GL_VERTEX_ARRAY) did.

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  1. Editorial Team

    I have been reading: Dissecting Display, Chapter 1. Hello, Triangle!.

    Then please read the next page; I explain exactly what it does there 😉

    If I may quote myself:

    We assigned the attribute index of the position attribute to 0 in the vertex shader, so the call to glEnableVertexAttribArray(0) enables the attribute index for the position attribute. […] If the attribute is not enabled, it will not be used during rendering.

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