Pro OpenGL ES for iOS

CHAPTER 7: Well-Rendered Miscellany (^203)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 0);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
//Now create the actual FBO.
glGenFramebuffersOES(1, &m_FBO1); //5
glBindFramebufferOES(GL_FRAMEBUFFER_OES, m_FBO1);
// Attach the texture to the FBO.
glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, //6
GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, m_Texture, 0);
// Attach the depth buffer we created earlier to our FBO.
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, //7
GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, depthBuffer);
// Check that our FBO creation was successful.
glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); //8
GLuint uStatus = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
if(uStatus != GL_FRAMEBUFFER_COMPLETE_OES)
{
NSLog(@ "ERROR: Failed to initialise FBO");
return 0;
}
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindFramebufferOES(GL_FRAMEBUFFER_OES, originalFBO); //9
return self;
}
-(GLint)getFBOName //10
{
return m_FBO1;
}
-(GLuint)getTextureName //11
{
return m_Texture;
}
@end