OpenGL 4 Shading Language Cookbook - Third Edition

How to do it...

Use the following steps to set up your buffer objects and render the triangle:

1. Create a global (or private instance) variable to hold our handle to the vertex array object:

GLuint vaoHandle;

2. Within the initialization function, we create and populate the vertex buffer objects for each attribute:

float positionData[] = { -0.8f, -0.8f, 0.0f, 0.8f, -0.8f, 0.0f, 0.0f, 0.8f, 0.0f }; float colorData[] = { 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f }; // Create and populate the buffer objects GLuint vboHandles[2]; glGenBuffers(2, vboHandles); GLuint positionBufferHandle = vboHandles[0]; GLuint colorBufferHandle = vboHandles[1]; // Populate the position buffer glBindBuffer(GL_ARRAY_BUFFER, positionBufferHandle); glBufferData(GL_ARRAY_BUFFER, ...