OpenGL OpenGL Buffers and Textures

Question 1

What OpenGL object stores vertex data (positions, normals, UVs) on the GPU?

Accepted Answer

VBO

Answer

VAO

Answer

FBO

Answer

RBO

Question 2

What is the purpose of a Vertex Array Object (VAO) in OpenGL?

Accepted Answer

Records vertex attribute configurations and buffer bindings

Answer

Stores raw pixel data for textures

Answer

Holds index data for element drawing

Answer

Manages texture units

Question 3

Which OpenGL function uploads vertex data from the CPU to a bound buffer object?

Accepted Answer

glBufferData

Answer

glVertexAttribPointer

Answer

glBindBuffer

Answer

glEnableVertexAttribArray

Question 4

What texture target is used when creating and binding a standard 2D image texture in OpenGL?

Accepted Answer

GL_TEXTURE_2D

Answer

GL_TEXTURE_1D

Answer

GL_TEXTURE_CUBE_MAP

Answer

GL_TEXTURE_3D

Question 5

What does the GL_ELEMENT_ARRAY_BUFFER target store?

Accepted Answer

Index data for indexed drawing commands

Answer

Per-vertex attribute data

Answer

Uniform block data

Answer

Texture coordinates only

Question 6

Which function specifies how a texture should be sampled when the texture is smaller than the screen area it covers (magnification)?

Accepted Answer

glTexParameteri with GL_TEXTURE_MAG_FILTER

Answer

glTexParameteri with GL_TEXTURE_MIN_FILTER

Answer

glGenerateMipmap

Answer

glTexImage2D