Vao Example

vao_test.c

// init
glGenVertexArrays(1, &fullscreenTriangleVAO);
glBindVertexArray(fullscreenTriangleVAO);
	glEnableVertexAttribArray(0);
	glEnableVertexAttribArray(1);
	glBindBuffer(GL_ARRAY_BUFFER, fullscreenTriangleFBO);
		glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, 0);
		glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, (GLvoid*)(6*sizeof(GLfloat)));
	glBindBuffer(GL_ARRAY_BUFFER, 0);
gl.BindVertexArray(0);

// draw
glBindVertexArray(fullscreenTriangleVAO);
glDrawArrays(GL_TRIANGLES, 0, 3);