#include "ofMain.h"

class ofApp : public ofBaseApp {
public:
    ofShader shader;
    ofEasyCam cam;
    ofFbo fbo;
    void setup() {
        ofBackground(0);    
        ofFbo::Settings s;
        s.width = ofGetWidth();
        s.height = ofGetHeight();
        s.useDepth = true;
        s.depthStencilAsTexture = true;
        fbo.allocate(s);
        shader.load("shader");
    }
    void draw() {
        ofEnableDepthTest();
        fbo.begin();
        cam.begin();
        ofClear(0);
        ofSetColor(255);
        ofIcoSpherePrimitive(400, 2).draw();
        cam.end();
        fbo.end();
        ofDisableDepthTest();
        
        if(ofGetKeyPressed(' ')) {
            fbo.draw(0, 0);
        } else {
            shader.begin();
            shader.setUniformTexture("tex0", fbo.getDepthTexture(), 1);
            fbo.draw(0, 0);
            shader.end();
        }
    }
};

int main() {
    ofGLWindowSettings settings;
    settings.setSize(1920, 1080);
//    settings.setGLVersion(3,2); // GL3
    settings.setGLVersion(2,1); // GL2
    ofCreateWindow(settings);
    ofRunApp(new ofApp());
}