VAO.cpp

#include "VAO.h"

// Constructor that generates a VAO ID
VAO::VAO()
{
	glGenVertexArrays(1, &ID);
}

// Links a VBO Attribute such as a position or color to the VAO
void VAO::LinkAttrib(VBO& VBO, GLuint layout, GLuint numComponents, GLenum type, GLsizeiptr stride, void* offset)
{
	VBO.Bind();
	if (type == GL_UNSIGNED_INT_2_10_10_10_REV)
		glVertexAttribIPointer(layout, numComponents, type, stride, (void*)offset);
	else
		glVertexAttribPointer(layout, numComponents, type, GL_FALSE, stride, (void*)offset);

	glEnableVertexAttribArray(layout);
	VBO.Unbind();
}

// Binds the VAO
void VAO::Bind()
{
	glBindVertexArray(ID);
}

// Unbinds the VAO
void VAO::Unbind()
{
	glBindVertexArray(0);
}

// Deletes the VAO
void VAO::Delete()
{
	glDeleteVertexArrays(1, &ID);
}