int cRenderer::InitFBO(void){
	glGenTextures(4, &FBOTextures[0]); // create (reference to) a new texture

	// Initialize the FBO attachment textures

	// Init first four color attachments
	for(int i = 0; i < 4; i++){
		glBindTexture(GL_TEXTURE_2D, FBOTextures);
		// (set texture parameters here)
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
		//create the texture
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16, 800, 600, 0, GL_RGBA, GL_FLOAT, 0);
	}

	glGenTextures (1, &depthTexture[0]);
	glBindTexture (GL_TEXTURE_2D, depthTexture[0]);
	glTexImage2D (GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, screenSettings->width, screenSettings->height, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

	// generate the frame buffer object
	glGenFramebuffersEXT(1, &FBO);

	// bind the frame buffer object and attach all of the texturs to it.
	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, FBO);
	glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, FBOTextures[0], 0);
	glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_2D, FBOTextures[1], 0);
	glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT2_EXT, GL_TEXTURE_2D, FBOTextures[2], 0);
	glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT3_EXT, GL_TEXTURE_2D, FBOTextures[3], 0);
	glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, depthTexture[0], 0);
	glDrawBuffer (GL_FALSE);
	glReadBuffer (GL_FALSE);

	// verify all is well and restore state
	GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
	switch (status){
		case GL_FRAMEBUFFER_COMPLETE_EXT:
			break;
		case GL_FRAMEBUFFER_UNSUPPORTED_EXT:
			cerr << "FBO configuration unsupported" << endl;
		default:
			cerr << "FBO programmer error" << endl;
	}
	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);

	return 0;
}

void DrawDepthTexture(void){	// Save the current Draw buffer	GLint currentDrawBuf;	glGetIntegerv(GL_DRAW_BUFFER, &currentDrawBuf);	// disable textureing, lighting, and blending	glDisable(GL_TEXTURE_2D | GL_LIGHTING | GL_BLEND);	glPushMatrix();	glViewport(0, 0, 800, 600);	// set up our current context	glClear(GL_DEPTH_BUFFER_BIT);	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);	glDepthMask(GL_TRUE);	glStencilMask(GL_FALSE);	// bind our frame buffer	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, renderer.FBO);	glDrawBuffer(GL_DEPTH_ATTACHMENT_EXT);	// draw our scene	DrawSomeObjects(0.0f, 0.0f, 0.0f, 1.0f);	glPopMatrix();	// reenable color masking and stencil masking should I turn off depth mask?	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);	glDepthMask(GL_TRUE);	// does this need to be turned off?	glStencilMask(GL_TRUE);	// re-enable textureing, lighting, and blending	glEnable(GL_TEXTURE_2D | GL_BLEND);	// draw the depth buffer in the bottom right corner in 2d	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);	glDrawBuffer(currentDrawBuf);	glViewport(0, 0, 800, 600);	glActiveTexture(GL_TEXTURE0);	glBindTexture(GL_TEXTURE_2D, renderer.depthTexture[0]);	glPushMatrix();	orthoMode(0, 16, 0, 12);	glBegin(GL_QUADS);	glColor4f(1.0f, 1.0f, 1.0f, 1.0f);	glTexCoord2f(0.0f, 0.0f);	glVertex2i(0, 0);	glTexCoord2f(1.0f, 0.0f);	glVertex2i(4, 0);	glTexCoord2f(1.0f, 1.0f);	glVertex2i(4, 3);	glTexCoord2f(0.0f, 1.0f);	glVertex2i(0, 3);	glEnd();	perspectiveMode();	glPopMatrix();}