ofApp.cpp

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup(){
    ofSetVerticalSync(true);
    ofEnableAlphaBlending();
    kinect.setRegistration(true);

    video1.load("drive_water.mov");
    video1.play();
    video1.setVolume(0);

    kinect.init();
    kinect.open();

    ofSetFrameRate(30);

    grayscaleImage.allocate(ofGetWidth(),ofGetHeight());
    maskFbo.allocate(ofGetWidth(),ofGetHeight());
    videoFbo.allocate(ofGetWidth(),ofGetHeight());
    compFbo.allocate(ofGetWidth(),ofGetHeight());
    feedbackFbo.allocate(ofGetWidth(),ofGetHeight());

    maskShader.load("alphamask");
    lumaDrag.load("lumadrag");

    maskFbo.begin();
    ofClear(0,0,0,255);
    maskFbo.end();

    videoFbo.begin();
    ofClear(0,0,0,255);
    videoFbo.end();

    compFbo.begin();
    ofClear(0,0,0,255);
    compFbo.end();

    feedbackFbo.begin();
    ofClear(0,0,0,255);
    feedbackFbo.end();

    gui.setup("Thresholds","",10,620);
    gui.add(nearThresh.setup("Near",1000,0,1000));
    gui.add(farThresh.setup("Far",1000,0,1000));

    shaderGui.setup("Lumadrag","",310,620);
    shaderGui.add(dragThresh.setup("thresh",0.0,0.0,1.0));
}

//--------------------------------------------------------------
void ofApp::update(){
    kinect.update();
    video1.update();

    maskFbo.begin();
    ofClear(0,0,0,255);
    maskFbo.end();

    videoFbo.begin();
    ofClear(0,0,0,255);
    videoFbo.end();

    compFbo.begin();
    ofClear(0,0,0,255);
    compFbo.end();

    feedbackFbo.begin();
    compFbo.draw(0,0);
    feedbackFbo.end();

    if(kinect.isFrameNew()){
        grayscaleImage.setFromPixels(kinect.getDepthPixels());

        ofPixels & pix = grayscaleImage.getPixels();
        int numPixels = pix.size();
        for(int i=0; i < numPixels; i++){
            if(pix[i] < nearThresh && pix[i] > farThresh){
                pix[i] = 255;
            }else{
                pix[i] = 0;
            }
        }

        grayscaleImage.flagImageChanged();
        contourFinder.findContours(grayscaleImage, 10, (kinect.width*kinect.height)/2, 20, false);
    }

    maskFbo.begin();
        grayscaleImage.draw(0,0,ofGetWidth(),ofGetHeight());
    maskFbo.end();

    videoFbo.begin();
        video1.draw(0,0,ofGetWidth(),ofGetHeight());
    videoFbo.end();

    compFbo.begin();
        maskShader.begin();
            maskShader.setUniformTexture("maskTex", maskFbo.getTexture(), 1);
            videoFbo.draw(0,0,ofGetWidth(),ofGetHeight());
        maskShader.end();
    compFbo.end();

    //trying to fill a feedback buffer here:
    feedbackFbo.begin();
        lumaDrag.begin();
        lumaDrag.setUniformTexture("tex1", feedbackFbo.getTexture(), 1);
        lumaDrag.setUniform1f("thresh", dragThresh);
        compFbo.draw(0,0);
        lumaDrag.end();
    feedbackFbo.end();
}

//--------------------------------------------------------------
void ofApp::draw(){

    lumaDrag.begin();
        lumaDrag.setUniformTexture("tex1", feedbackFbo.getTexture(), 1);
        lumaDrag.setUniform1f("thresh", dragThresh);
        compFbo.draw(0,0);
    lumaDrag.end();

    gui.draw();
    shaderGui.draw();
}

//--------------------------------------------------------------
void ofApp::keyPressed(int key){

}

//--------------------------------------------------------------
void ofApp::keyReleased(int key){

}

//--------------------------------------------------------------
void ofApp::mouseMoved(int x, int y ){

}

//--------------------------------------------------------------
void ofApp::mouseDragged(int x, int y, int button){

}

//--------------------------------------------------------------
void ofApp::mousePressed(int x, int y, int button){

}

//--------------------------------------------------------------
void ofApp::mouseReleased(int x, int y, int button){

}

//--------------------------------------------------------------
void ofApp::mouseEntered(int x, int y){

}

//--------------------------------------------------------------
void ofApp::mouseExited(int x, int y){

}

//--------------------------------------------------------------
void ofApp::windowResized(int w, int h){

}

//--------------------------------------------------------------
void ofApp::gotMessage(ofMessage msg){

}

//--------------------------------------------------------------
void ofApp::dragEvent(ofDragInfo dragInfo){

}