void Framebuffer::attachDepthBuffer(const Renderbuffer& rb)
{
bind();
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rb.getHandle());
_depth = true;
}
void Framebuffer::attachColorBuffer(const Renderbuffer& rb)
{
bind();
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rb.getHandle());
_color = true;
}