Strange ofVboMesh behavior on Raspberry Pi

@davidemania wrote:

In the process of porting my code to the Raspberry Pi I am having trouble with how the mesh object behaves. So far it runs smoothly on mac, windows and Ubuntu.

I stripped down everything to a MWE, reported below:

class ofApp : public ofBaseApp{
    public:
        void setup();
        void update();
        void draw();

        void keyPressed(int key);
        void keyReleased(int key);
        void mouseMoved(int x, int y);
        void mouseDragged(int x, int y, int button);
        void mousePressed(int x, int y, int button);
        void mouseReleased(int x, int y, int button);
        void mouseEntered(int x, int y);
        void mouseExited(int x, int y);
        void windowResized(int w, int h);
        void dragEvent(ofDragInfo dragInfo);
        void gotMessage(ofMessage msg);

        ofVboMesh mesh;
        ofImage monoscope;
};

void ofApp::setup()
{
    monoscope.load("monoscope.jpg");

    int w = ofGetWidth();
    int h = ofGetHeight();

    mesh.clear();
    mesh.setMode(OF_PRIMITIVE_TRIANGLES);

    mesh.addVertex(ofPoint(10, 10, 0));
    mesh.addVertex(ofPoint(w-10, 10, 0));
    mesh.addVertex(ofPoint(w-10, h-10, 0));
    mesh.addVertex(ofPoint(10, h-10, 0));

    w = monoscope.getWidth();
    h = monoscope.getHeight();

    mesh.addTexCoord(ofVec2f(0, 0));
    mesh.addTexCoord(ofVec2f(w-1, 0));
    mesh.addTexCoord(ofVec2f(w-1, h-1));
    mesh.addTexCoord(ofVec2f(0, h-1));

    mesh.addIndex(0);
    mesh.addIndex(1);
    mesh.addIndex(3);

    mesh.addIndex(1);
    mesh.addIndex(2);
    mesh.addIndex(3);
}

void ofApp::draw()
{
    ofBackground(0, 0 , 0);

    ofSetColor(255);
    ofTexture& tex = monoscope.getTexture();
    tex.bind();
    mesh.draw();
    tex.unbind();

    ofSetColor(255, 0, 0);
    mesh.drawWireframe();
}

monoscope is a simple jpeg picture in data folder. Well, on mac the output is (as expected) this:

Schermata 2017-08-04 alle 13.27.17.png1136x902 520 KB

Lines are a little thin but the mesh is drawn correctly, and so the binded texture. On the RasPi (sorry I had to take a picture because of apps do not appear in screenshots) the mesh is missing the vertical lines and the binded texture is not there.

WP_20170804_001.jpg1632x918 194 KB

I really could use some help here, thank you!
Davide

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Participants: 2

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