charcoal/OpenGLEngine/MyBasicScene.cpp

#include "MyBasicScene.h"

MyBasicScene::MyBasicScene(Application& application)
	: Scene(application)
{
}


MyBasicScene::~MyBasicScene()
{
}

void MyBasicScene::init()
{
	float points[] = {
		0.0f,  0.5f,  0.0f,
		0.5f, -0.5f,  0.0f,
		-0.5f, -0.5f,  0.0f
	};

	glGenBuffers(1, &m_vbo);
	glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
	glBufferData(GL_ARRAY_BUFFER, 9 * sizeof(float), points, GL_STATIC_DRAW);

	glGenVertexArrays(1, &m_vao);
	glBindVertexArray(m_vao);
	glEnableVertexAttribArray(0);
	glBindBuffer(GL_ARRAY_BUFFER, m_vbo);
	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, NULL);
}

void MyBasicScene::use()
{
	glEnable(GL_DEPTH_TEST);
	glDepthFunc(GL_LESS);
}

void MyBasicScene::unuse()
{
}

void MyBasicScene::update(float delta_time, clock_t clock)
{
}

void MyBasicScene::prerender()
{
}

void MyBasicScene::render()
{
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	m_shader_program.use();
	glBindVertexArray(m_vao);
	glDrawArrays(GL_TRIANGLES, 0, 3);

}