Example #1
0
//-----------------------------------------------------------------------------------------
//
void ofApp::update()

{
    float time = ofGetElapsedTimef(); // time is equal to the amount of time passed
    // changes the vertices for each mesh at j
    for(int j=0; j<number; j++) {
        for(int y=0; y<h; y++) {
            for(int x=0; x<w; x++) {
                // vertex index
                int i = x + w * y;
                
                ofPoint pt = mesh[j].getVertex(i);
                float noise = ofNoise(x, y, time * 0.5); // Perlin noise value
                float rNoise = ofSignedNoise(x*0.5, y*0.3, time*0.1); // Creates a Perlin signed noise value for the red value of the mesh color
//  comment above line and uncomment line below for a variation of blue, purple, and red colors
//               float rNoise = ofSignedNoise(x*0.5, y*0.3, time);
                float bNoise = ofSignedNoise(x*0.5, y*0.3, time*0.1); // creates a Perlin signed noise value for the blue value of the mesh
                pt.z = noise ; // assigns noise to the z value so the noise affects the z space of the mesh
                
                
                mesh[j].setVertex(i, pt);
                mesh[j].setColor(i, ofColor(250*rNoise, 0, 250*bNoise)); // sets color of mesh
                // note: only using red and blue to make a purple color, then adding the rNoise and bNoise to change the values of red and blue to make different shades of purple
            }
        }
        
        setNormals(mesh[j]); // updates the normals for each mesh at j
    }
    
    
}
Example #2
0
void GTess::draw(){;

    float speedV = ofMap(speed, 0, 1, -2, 2);
    
    ofSetLineWidth(4);
    // waves going across red
    for(int i =0; i<mapping->triangles.size();i++) {
        ofSetColor( 255, 255, 255, ofNoise(mapping->triangles[i]->centroid.y/600 - ofGetElapsedTimef()/speed)*255);
        
        //mapping->triangles[i]->
        
        ofSetColor( 255, 255, 255, ofNoise(mapping->triangles[i]->centroid.x/600 - ofGetElapsedTimef()/speed) *255 );
        mapping->triangles[i]->mesh.drawWireframe();
    }
    
}
Example #3
0
void StFftDistort::update(){
    ofxUISlider *gnoisescale = (ofxUISlider *)gui->getWidget("NOISE SCALE"); float noisescale = gnoisescale->getValue();
    ofxUISlider *gshiftspeed = (ofxUISlider *)gui->getWidget("SHIFT SPEED"); float shiftspeed = gshiftspeed->getValue();
    
    float distortionStrength = ofMap(app->oscControl->controlVal[4], 0, 127, 1, 8);
    
    float fftSum = 0;
    for (int i = 0; i < app->fft->drawBins.size(); i++) {
        fftSum += app->fft->drawBins[i];
    }
    
    int i = 0;
    for(int y = 1; y + 1 < ySteps; y++) {
        for(int x = 1; x + 1 < xSteps; x++) {
            int i = y * xSteps + x;
            float noiseX = ofMap(currentVertex[i].x, 0, ofGetWidth(), 0, noisescale);
            float noiseY = ofMap(currentVertex[i].y, 0, ofGetWidth(), 0, noisescale);
            float offset = ofNoise(noiseX + ofGetElapsedTimef() * shiftspeed, noiseY + ofGetElapsedTimef() * shiftspeed);
            currentVertex[i].z = offset * distortionStrength * fftSum;
            mesh.setVertex(i, currentVertex[i]);
            i++;
        }
    }
    
    gui->setVisible(getSharedData().guiVisible);
}
Example #4
0
//--------------------------------------------------------------
void ofApp::update(){
    wind[0] = ofNoise(wind[0])/100 * -1;
    applyForce(wind);
    
    // bounce from top
    if (loc[1] < 59) {
        loc[1] = 60;
        vel[1] = 0;
        applyForce(ceiling);
    } else if (loc[0] < 60) {
        loc[0] = 60;
    }
    
    vel += acc;
    loc += vel;
    
    acc.scale(0);
    
    // arduino
    // receive and analyse data in an infinite while loop
    while (true) {
        int c = serial.readByte();
        // break the loop if all data received by the serial port was already processed or there is an error
        if (c == OF_SERIAL_NO_DATA || c == OF_SERIAL_ERROR || c == 0)
            break;
        // if a new line symbol is received, set a value to the arduinoSpeed variable
        // clear the buffer to be ready to receive the next value
        if (c == '\n') {
            arduinoSpeed = ofToFloat(str);
            str = "";
        }
        // append the received value to the buffer
        else str.push_back(c);
    }
}
Example #5
0
void Drop::draw(){
    
    ofPushMatrix();
    
     ofTranslate(pos);
   
    ofBeginShape();
    
    for (int i = 0; i < 200; i++){
        float add = ofNoise(i/20.0f, noiseOffset * 3 * dropNoiseLevel / (float)ofGetWidth());
        
        dropRadius = dropRadiusDefault * noiseOffset;
        
        ofSetColor(c, trans);
        
        ofVertex((dropRadius + 5 * add * noiseOffsetOutline) * cos((i/200.0)*TWO_PI),
                 (dropRadius + 5 * add * noiseOffsetOutline) * sin((i/200.0)*TWO_PI));
        
        
        
    }
    
    ofEndShape();
    ofPopMatrix();
    
    
    

    
}
Example #6
0
void Particle::update(){
//    noiseFloat = ofNoise(pos.x * 0.0025, pos.y * 0.0025, ofGetElapsedTimef() * 0.001);
//    noiseVec.x = cos(((noiseFloat -0.3) * TWO_PI) * 10);
//    noiseVec.y = sin(((noiseFloat - 0.3) * TWO_PI) * 10);
    //cout<<noiseVec<<endl;
    
    
    noiseFloat = ofNoise(pos.x * *xNoiseValue, pos.y * *yNoiseValue, ofGetElapsedTimef() * *zNoiseValue);
    noiseVec.x = cos(((noiseFloat -0.3) * TWO_PI + *xAngleOffset) * *xNoiseScale);
    noiseVec.y = sin(((noiseFloat - 0.3) * TWO_PI + *yAngleOffset) * *yNoiseScale);
    
    vel += noiseVec;
    vel *=0.8;
    pos += vel;
    if(1.0-(age/lifeTime) == 0){
        isDead = true;
    }
    
    if(pos.x < 0 || pos.x > ofGetWindowWidth() || pos.y < 0 || pos.y > ofGetWindowHeight()){
        isDead = true;
    }
    
    age++;
    
}
Example #7
0
//--------------------------------------------------------------
void testApp::updateSpotFromMoversGaussian(){
  float interval = ofGetWidth()/nbLedProjector;
  for (int i = 0; i < (int) movers.size(); i++){
    float diameter = movers[i].get()->getDiameter();
    float radius = diameter/2.;
    float where = (movers[i].get()->getLocation().x-radius)/interval;
    float gaussian_intensity = ofMap(movers[i].get()->getVelocity().length(),0,6,gaussian_intensity_min, gaussian_intensity_max,true);
    gaussian_intensity *= movers[i].get()->getLightning();
    float sd  = ofMap(movers[i].get()->getDiameter(),2.7,40,sd_min,sd_max,false);
    /*
    for (int i = 0; i < nbLedProjector; i++){
      float value = gaussian(i, where, sd)*gaussian_intensity/100;
      spots[i]+=value;
    }
    */
    // add perlin noise on the gaussian
    movers[i].get()->yoff += yoff_inc;
    float xoff = 0;
    for (int k = 0; k < nbLedProjector; k++){
      xoff += xoff_inc;
      float value = gaussian(k, where, sd)*gaussian_intensity/100;
      float perlin = ofNoise(xoff, movers[i].get()->yoff)*tourbillons_intensite/100;
      value += (perlin-0.5)*value;
      spots[k]+=value;
    }
  }
}
void Enemy::branch( float length, float _ang1, float _ang2, float _mult, bool _trans ) {
    
    // Matt--this is copied and heavily modified from Charlie's in-class example.
    
    if ( _trans ) {
        ofTranslate( 100, 0 );
    }
    
    ofPushMatrix();
    ofLine( ofVec2f(0,0), ofVec2f(0, -length) );
    ofTranslate( 0, -length );
    
    //        generation++;
    
    float noise = ofNoise(ofGetElapsedTimef() * 0.1 );
    
    if( length > 2 ){
        ofPushMatrix();{
            ofRotate( ( _ang1 + theta + noise * 10-5 ) * _mult );
            branch( length * 0.666, _ang1, _ang2, _mult, _trans );
        }ofPopMatrix();
        
        ofPushMatrix();{
            ofRotate( ( _ang2 + theta - noise * 10-5 ) * _mult );
            branch( length * 0.666, _ang1, _ang2, _mult, _trans );
        }ofPopMatrix();
    }
    
    ofPopMatrix();
    
    //    generation--;
}
Example #9
0
//--------------------------------------------------------------
void testApp::update(){
    ofSetWindowTitle(ofToString(ofGetFrameRate()));
    unsigned char* pixels = myPerlin.getPixels();
    
    for (int i=0; i<640; i++) {
        for (int j = 0; j <480; j++) {
            pixels[j*640+i]= ofNoise(i*0.005+mouse.x,j*0.005+mouse.y, ofGetElapsedTimef())*150;
        
        }}
    
    for (int j=0; j<100; j++) {
        ofSetColor(255 * ofNoise(j * 0.01, j, mouseY * 20, 1), 255 * ofNoise(j * 0.01, j, mouseY * 20, 2), 255 * ofNoise(j * 0.01, j, mouseY* 20, 3));
    
    myPerlin.update();
    }
    }
//--------------------------------------------------------------
void testApp::draw(){
//    for(int i=0; i<10; i++){
//        for(int j=0; j<10; j++){
//            ofSetColor(ofRandom(255), ofRandom(255), ofRandom(255));
//            ofRect(i*10,j*10,10,10);
//        }
//    }
    
    for(int i=0; i<100; i++){
        for(int j=0; j<100; j++){
            ofSetColor(255* ofNoise(i,j, mouseY * 0.001, 1), 255* ofNoise(i,j, mouseY * 0.001, 2), 255* ofNoise(i,j, mouseY * 0.001, 3)); //ofNoise(x,y,z,w);
            ofRect(i * 10,j * 10,10,10);
        }
    }

}
Example #11
0
void StFftSphereRibbon::update(){
    ofxUISlider *gnoisescale = (ofxUISlider *)gui->getWidget("NOISE SCALE"); float noisescale = gnoisescale->getValue();
    ofxUISlider *gshiftspeed = (ofxUISlider *)gui->getWidget("SHIFT SPEED"); float shiftspeed = gshiftspeed->getValue();
    ofxUISlider *ginterp = (ofxUISlider *)gui->getWidget("INTERPORATION"); float interp = ginterp->getValue();
    ofxUISlider *gthickness = (ofxUISlider *)gui->getWidget("RIBBON WIDTH"); float thickness = gthickness->getValue();
    
    float distortionStrength = ofMap(app->oscControl->controlVal[4], 0, 127, 2, 10);
    
    float fftSum = 0;
    for (int i = 0; i < app->fft->drawBins.size(); i++) {
        fftSum += app->fft->drawBins[i];
    }
    for (int i = 0; i < mesh.getVertices().size(); i++) {
        float noiseX = ofMap(currentVertex[i].x, 0, ofGetWidth(), 0, noisescale);
        float noiseY = ofMap(currentVertex[i].y, 0, ofGetWidth(), 0, noisescale);
        float noiseZ = ofMap(currentVertex[i].y, 0, ofGetWidth(), 0, noisescale);
        float offset = ofNoise(noiseX + ofGetElapsedTimef() * shiftspeed, noiseY + ofGetElapsedTimef() * shiftspeed);
        currentVertex[i] = currentVertex[i].normalize() * (offset * fftSum * distortionStrength);
        float randStrength = distortionStrength * 5.0;
        currentVertex[i] +=  ofVec3f(ofRandom(-randStrength, randStrength), ofRandom(-randStrength, randStrength), ofRandom(-randStrength, randStrength));
        mesh.setVertex(i, currentVertex[i]);
        interplateVertex[i] += (currentVertex[i] - interplateVertex[i]) * interp;
        ribbons[i]->thickness = thickness;
        ribbons[i]->update(interplateVertex[i]);
    }
    
    gui->setVisible(getSharedData().guiVisible);
}
void wCity::update(){
    ofPoint pos = *this*ofGetElapsedTimef()*0.001;
    
    if ( noisePeaks != NULL){
        if ( *noisePeaks > 0.0){
        noise = powf( *noisePeaks ,ofNoise( sin(pos.x),pos.y,pos.z*0.1));
        nNoise = ofMap(noise,0.001,*noisePeaks,0.0,1.0,true);
        color.setHue( 20+nNoise*30 );
        size = nNoise*5.0;
        }
    } else {
        float blink = abs(sin(ofGetElapsedTimef()*freq));
        color.setHue( 20+ blink * 30 );
        size =  blink * 2.0;
    }
    
    if (noiseThreshold != NULL && noisePeaks != NULL){
        if (nNoise > *noiseThreshold ){
            
            if (!bRipple && *noisePeaks > 0.0)
                bRipple = true;
        }
    }
    
    if (bRipple){
        if (ripplePct<1.0){
            ripplePct += 0.01;
        } else {
            ripplePct = 0.0;
            bRipple = false;
        }
    }
}
Example #13
0
//--------------------------------------------------------------
void ofApp::drawLinePixel(float X1, float Y1,float X2, float Y2, float linewidth,ofColor col){
    float t;
    pointX,pointY = 0;
    
    // if slope does not exsists
    if ( X1 == X2) {
        pointX = X1;
        for ( t = 0; t <= Y2; t++) {
            pointY = pointY + Y1;
//            ofSetColor(0);
//            ofPoint(t,pointY);
            ofSetColor(mycolor);
            ofCircle(pointX, pointY,linewidth );
        }
    }
    // the slope exsist
    else {
        float slopeK = ( Y2 - Y1 ) / ( X2- X1 );//calculate the slope
        for ( t = X1; t <= X2; t++) {
            pointX = t;
            pointY = slopeK * (t - X1) + Y1;
//            ofSetColor(0);
//            drawImage1(X1, Y1, X2, Y2, 160, 200, 0);
            ofSetColor(mycolor);
            ofCircle(pointX, pointY,ofMap(ofNoise(t), X1, X2, 0.3, linewidth) );
//            ofEllipse(pointX, pointY, ofMap(ofNoise(t+3), X1 , X2, 0.2,  linewidth), ofMap(ofNoise(t), X1 , X2, 0.2, 23 * linewidth));
        }
    }
}
void testApp::newParticleField(int res){
    int particleResolution = res;
    float randomScatter = 30;
    
    randomPerl = ofRandom(1000);
    
    float perlinScale = 0.005;
    
    for(int y = 0; y < ofGetWindowHeight(); y += particleResolution){
        for(int x = ofGetWindowWidth()/2 - ofGetWindowHeight()/2; x < ofGetWindowWidth()/2 + ofGetWindowHeight()/2; x += particleResolution){
            
            //calculate point distance from attractor
            float distSq = ofDistSquared(x, y, attractorPos.x, attractorPos.y);
            
            //create new points only if outside attractor
            if(distSq > (attractorSize + attractionRad) * (attractorSize + attractionRad)){
                float noiseVal = ofNoise(x * perlinScale + randomPerl, y * perlinScale + randomPerl);
                
                if(noiseVal > 0.5){
                    Particle p;
                    p.pos.set(x + ofRandom(-randomScatter, randomScatter), y + ofRandom(-randomScatter, randomScatter));
                    
                    p.setup(&pImg);
                    
                    //add to x pos to center them in window
//                    p.pos.x += ofGetWindowWidth()/2 - ofGetWindowHeight()/2;
                    pList.push_back(p);
                }
            }
        }
    }
}
void testApp::perlinBlob(int base, float range, int randSeed, int rot){

    float speed = 0.2;
    float fringeWidth = base * range;

    ofPushMatrix();{
        ofTranslate( ofGetWindowSize() / 2);
        ofRotate(rot);

        ofBeginShape();
        for (int i = 0; i < 100; i++){
            
            //Code borrowed from Charley Whitney (Algorithmic Animations Fall 2013)
            float add = ofNoise(i/20.0f, ofGetElapsedTimef() * speed + randSeed);
            
            //this will draw a circle with a min radius of the incoming value
            //plus the fringe value
            ofVertex( (base - fringeWidth * add) * cos((i/100.0)*TWO_PI),
                     (base - fringeWidth * add) * sin((i/100.0)*TWO_PI));
            
        }
        
        //ofVertex(firstX, firstY);
        
        ofEndShape();
        
    }ofPopMatrix();

}
Example #16
0
ofVec3f Surface::setNoiseHeight(ofVec3f temp){
    float mult;
    float div;
    if (seed.getSurfaceType() == Seed::S_WATER){
        mult = .1;
        div = .00454;
    }
    else {
        mult = .005;
        div = .002;
    }
    
    int xCoord = ofMap(temp.x, -seed.shapeSize/2, seed.shapeSize/2, 0, surfaceRes);
    int yCoord = ofMap(temp.y, -seed.shapeSize/2, seed.shapeSize/2, 0, surfaceRes);
    
    float a = xCoord * mult;
    float b = yCoord * mult;
    float c = surfaceID * div;
    
    float noise = ofNoise(a,b,c) * 255;
    float color = noise>75 ? ofMap(noise,75,255,0,255) : 0;
    
    return ofVec3f(temp.x, temp.y, color*surfaceHeightMult);
    
}
Example #17
0
//--------------------------------------------------------------
void testApp::updateMultibandNoiseDemo(){
	
	// For each noise strip
	for (int i=0; i<nNoiseStrips; i++){
		
		// Push the older data to the end of the array
		float *data = (float *)noiseDataStripGroup[i].data;
		for (int j=(NOISE_DATA_STRIP_LENGTH-1); j>0; j--){
			data[j] = data[j-1];
		}
		
		// Add the most recent data, the noise value. 
		// Here's where we actually fetch the noise, using ofNoise().
		// Note how ofNoise() requires an argument ('t'); this is
		// the coordinate (on a one-dimensional axis) whose
		// corresponding noise value we wish to obtain.
        
        //加入最近的数据,既噪点数值。
        //这里是我们真正取得噪点的地方,使用ofNoise().
        //注意如何使用ofNoise() 取得论据“(‘t‘);
        //这是相对应于我们希望取得的噪点数值的坐标(在一纬的轴上);
		float noiseStep = noiseDataStripGroup[i].noiseStep; 
		float t = (ofGetElapsedTimeMillis()/10.0 + i) * noiseStep;
		data[0] = ofNoise(t);
	}
	
	// Compute the normalization factor: the total sum of the weights
	// for all of the contributing noise channels. This number is the largest
	// value which the sum of noise streams could possibly achieve.
    // 计算出一个标准化因子:所有噪点频道的总值的权重。这个数字是噪点可以取得的最大值
	float normalizationFactor = 0;
	for (int i=0; i<nNoiseStrips; i++){
		float weight = sliderGroup[i].getValue();
		normalizationFactor += weight;
	}
	if (normalizationFactor == 0){
		normalizationFactor = 1.0;
	}
	
	// For every sample in the recording history,
    // 为了每一个记录样本
	for (int j=0; j<NOISE_DATA_STRIP_LENGTH; j++){
		float sumj = 0; 
		
		// Sum the weighted contribution from each of the noise strips.
        //相加每一个噪点条的权重
		for (int i=0; i<nNoiseStrips; i++){
			float val = noiseDataStripGroup[i].data[j];
			float weight = sliderGroup[i].getValue();
			sumj += (weight * val); 
		}
		
		// Normalize it to the range 0...1 by dividing it
		// by normalizationFactor, as we discussed above.
        //标准化它的范围到0-1之间通过除以一个标准因子,也就是我们上面讨论的东西。
		summedNoiseData[j] = sumj / normalizationFactor;
	}
	
	
}
Example #18
0
void ofApp::update() {
	filter.begin();
	ofSetColor(255);
	ofTranslate(ofGetWidth() / 2, ofGetHeight() /2);
	ofRotate(ofGetElapsedTimef() * 20);
	int n = 13;
	for(int i = 0; i < n; i++) {
		float theta = ofMap(i, 0, n, 0, 360);
		ofPushMatrix();
		ofRotate(theta);
		ofTranslate(50 + 150 * ofNoise(ofGetElapsedTimef() + i), 0);
		if(i% 6 < 3) {
			ofFill();
		} else {
			ofNoFill();
		}
		if(i % 2 == 0) {
			ofCircle(0, 0, 32);
		} else {
			ofRect(-16, -16, 32, 32);
		}
		ofPopMatrix();
	}
	filter.end();
}
Example #19
0
void ofApp::updateMesh(ofMesh* mesh, ofMesh* MeshOut) {
    for (int i=0; i<mesh->getNumVertices(); i++) {
        auto vertex = mesh->getVertex(i);
        auto normal = mesh->getNormal(i);
        // calc noise distortion
        auto noiseVert = vertex / noiseInDiv;
        if (isNoiseFromNormal) {
            // use normals
            noiseVert = MeshOut->getNormal(i) / noiseInDiv;
            // Sydney Opera House
            float scalar = i % noiseVertMod;
            noiseVert = ofVec3f(scalar, scalar, scalar) * noiseInDiv;
        }
        // simplex noise creates uneven shapes
        float noise = ofNoise(noiseVert.z*noiseIn.get().z, noiseVert.x*noiseIn.get().x, noiseVert.y*noiseIn.get().y) -0.5;
        // sin multiplier gives more even lumps
        //noise = sin(noiseVert.z*noiseIn.get().x) * sin(noiseVert.x*noiseIn.get().y) * sin(noiseVert.y*noiseIn.get().z);
        // cos multiplier gives more even lumps
        //noise = cos(noiseVert.z*noiseIn.get().x) * cos(noiseVert.x*noiseIn.get().y) * cos(noiseVert.y*noiseIn.get().z);
        // threshold for square shapes
        //if (noise > 0.2) noise = 0.5;
        //if (noise < -0.2) noise = -0.5;
        
        auto nextVertex = vertex += normal * (noise * noiseOutMult);
        auto lastVert = MeshOut->getVertex(i);
        vertex.x = ofLerp(lastVert.x, nextVertex.x, 0.1);
        vertex.y = ofLerp(lastVert.y, nextVertex.y, 0.1);
        vertex.z = ofLerp(lastVert.z, nextVertex.z, 0.1);
        
        // update vert
        MeshOut->setVertex(i, vertex);
    }
}
Example #20
0
void testApp::update() {
	vector<ofVec2f> touches;
	ofSeedRandom(0);
	for(int i = 0; i < 1; i++) {
		float f = .1;
		touches.push_back(
			ofVec2f(
				ofGetWidth() * ofNoise(ofGetElapsedTimef() * f + ofRandom(1024)),
				ofGetHeight() * ofNoise(ofGetElapsedTimef() * f + ofRandom(1024))));
	}
	if(ofGetMousePressed()) {
		touches.push_back(ofVec2f(mouseX, mouseY));
	}
	scenes[curScene]->setTouches(touches);
	scenes[curScene]->update();
}
Example #21
0
//--------------------------------------------------------------
void ofApp::setup(){
	
    ofSetCircleResolution(120);
    red = 233; blue = 233; green = 233;
    hideGUI = false;
    bdrawGrid = false;
	bdrawPadding = false;

    ddl = NULL;
    textInput = NULL;
    img = new ofImage();
    img->loadImage("nerd_me.png");
    buffer = new float[256];
    for(int i = 0; i < 256; i++) { buffer[i] = ofNoise(i/100.0); }
    
	setGUI1();
	setGUI2();
    setGUI3();
    setGUI4();
    setGUI5();
    
    gui1->loadSettings("gui1Settings.xml");
    gui2->loadSettings("gui2Settings.xml");
    gui3->loadSettings("gui3Settings.xml");
    gui4->loadSettings("gui4Settings.xml");
    gui5->loadSettings("gui5Settings.xml");
}
void Square::setup(){
    _x = ofRandom(0, ofGetWidth());
    _y = ofRandom(0, ofGetHeight());
//
//    float sinOfTime               = sin( ofGetElapsedTimef() );
//    float sinOfTimeMapped         = ofMap(sinOfTime, -1, 1, 0, 500);
//    float sinOfTime2              = sin( ofGetElapsedTimef() + PI);
//    float sinOfTimeMapped2        = ofMap(sinOfTime2, -1, 1, 0, 500);
    
//    speedX = sinOfTimeMapped;
//    speedY = sinOfTimeMapped2;
    
//    speedX = (-2, 5);
//    speedY = (-2, 5);
    
//    float time = ofGetElapsedTimef();
//    float cosOfTime = cos(time * 2.0) * 0.5;
//    float cosOfTime2 = cos(time) * 0.3;
    
    float value = ofNoise(0);
    
//    speedX = ofMap(cosOfTime, -1, 1, 0, ofGetWidth());
//    speedY = ofMap(cosOfTime2, -1, 1, 0, ofGetHeight());

    
    w = ofRandom(30, 80);
    h = ofRandom(10, 50);
    
    color.set(ofRandom(255),ofRandom(255),ofRandom(255));
}
Example #23
0
void Meeba::drawMeebs() {
    
    meshTop.setMode(OF_PRIMITIVE_POINTS);
    
    for(float i=0; i <2*PI; i+=PI/density){
        float a = cos(i);
        float b = sin(i);
        
        ofPoint pos;
        ofPoint negPos;
        float increment = 1;
        //float radiusSound = radius+sound.x ;
        float radius2 = radius + ofNoise(ofGetElapsedTimef(), i) *  50;
        
        for(float j=0; j<radius2+increment; j+=increment){
            float x = a*j+ofGetWidth()/2 + shift.x;
            float y = b*j+ofGetHeight()/2 + shift.y;
            float z = abs(sqrt(radius2*radius2-(a*a*j*j + b*b*j*j)));
            
            
            //cout << negZ << endl;
            pos.set(x, y, z);
            negPos.set(x, y, -z);
            meshTop.addVertex(pos);
            meshTop.addColor(color);
            meshTop.addVertex(negPos);
            meshTop.addColor(color);
        }
    }
    
    meshTop.draw();
    meshTop.clear();
    
}
Example #24
0
//--------------------------------------------------------------
void ofApp::draw(){
    

    ofBackgroundGradient(130,20,OF_GRADIENT_CIRCULAR);
    ofSetCircleResolution(100);
    
    
    
    float angle = TWO_PI/numCircles;
    float sinValue = sin(ofGetElapsedTimef()/TWO_PI);
    float cosValue = cos(ofGetElapsedTimef()/TWO_PI);

    
    for (int i = 0; i < numCircles; i++){
        
        float radius = ofNoise(ofGetElapsedTimef()+i*2)*500;
        float centerx = pos.x + radius*cos(angle*i);
        float centery = pos.y + radius*sin(angle*i);
        
        circles[i].draw(centerx, centery, 1+sinValue*100, i/numCircles);
        
    }
    
    
 
}
Example #25
0
//--------------------------------------------------------------
void testApp::update() {
	
	float t = (ofGetElapsedTimef()) * 0.9f;
	float div = 250.0;
	
	for (int i=0; i<NUM_BILLBOARDS; i++) {
		
		// noise 
		ofVec3f vec(ofSignedNoise(t, billboardVerts[i].y/div, billboardVerts[i].z/div),
								ofSignedNoise(billboardVerts[i].x/div, t, billboardVerts[i].z/div),
								ofSignedNoise(billboardVerts[i].x/div, billboardVerts[i].y/div, t));
		
		vec *= 10 * ofGetLastFrameTime();
		billboardVels[i] += vec;
		billboardVerts[i] += billboardVels[i]; 
		billboardVels[i] *= 0.94f; 
		billboardSize[i] = 12 + billboardSizeTarget[i] * ofNoise(t + i);
	}
	
	
	// move the camera around
	float mx = (float)mouseX/(float)ofGetWidth();
	float my = (float)mouseY/(float)ofGetHeight();
	ofVec3f des(mx * 360.0, my * 360.0, 0);
	cameraRotation += (des-cameraRotation) * 0.03;
	zoom += (zoomTarget - zoom) * 0.03;
	
}
Example #26
0
void branch::update(){
	if (radius>=minRadius) {
		radius*=branchDecay;
		float theta = ofNoise(currentPos.x, currentPos.y, currentPos.z);
		theta*=2*PI;
		if (nodes.size() >20) {
			currentAcc = cos(theta)*nodes.back().u+radius*sin(theta)*nodes.back().u;
		}
		currentVel+=0.1*currentAcc;
		currentVel*=branchDecay;
		currentVel.limit(5);
		currentPos+=currentVel;
		//branchNode b = branchNode(nodeRes,radius+1.0*sin(age*2*PI/20),currentPos+ofxVec3f(ofRandom(-0.1, 0.1),ofRandom(-0.1, 0.1),ofRandom(-0.1, 0.1)),currentVel);
        branchNode b = branchNode(nodeRes,radius+0.4*radius*sin(age*2*PI/20),currentPos,currentVel);
		nodes.push_back(b);
        age++;
	}
    
    if (timeToStem()) {
        doStem();
    }
    
    
    //Update Children
    
    childIter = children.begin();
    while (childIter!=children.end()){
        childIter->update();
        ++childIter;
    }
}
Example #27
0
//--------------------------------------------------------------
//--------------------------------------------------------------
void testApp::setup(){

    
    
    for (int i = 0; i < 100; i++){
        
        float x = i;
        float y = ofNoise(1000 + i / 10.0) * 50;
        
        pts.push_back(ofPoint(x,y));
        
        xVals.push_back(x);
        yVals.push_back(y);
        
    }
    
    /*
     
     
     SplineT::Debug(0);
     SplineT spline(&xVals[0],
     xVals.size(),
     &yVals[0],
     0,
     0,
     12);
     
     printf("coefficients \n");
     
     splineInfo info;
     
     for (int i = 0; i <= spline.M; i++){
     printf("%i = %f \n", i, spline.coefficient(i));
     info.coefficients.push_back(spline.coefficient(i));
     info.M = spline.M;
     info.DX = spline.DX;
     info.xmin = spline.xmin;
     info.xmax = spline.xmax;
     info.mean = spline.mean;
     }
     
     
     for (int i = 0; i < 100; i++){
     
     float y = evaluate(i, &info.coefficients[0], info.xmin, info.DX, info.M, info.mean);
     //evaluate(<#float x#>, <#float *coeficients#>, <#float xmin#>, <#float DX#>, <#int M#>, <#float mean#>)
     ptsResult.push_back(ofPoint(i,y));
     
     }
     
     
     
     */
    
    

    
    
}
Example #28
0
//--------------------------------------------------------------
void testApp::draw(){
    // draw mouse circles to front canvas
    canvas[0].begin();
    // fade out the bg a little
    ofSetColor(0,2);
    ofRect(0,0, canvas[0].getWidth(),  canvas[0].getHeight());
    ofSetColor(255);
    // draw a box outline
    ofNoFill();
    ofSetLineWidth(5);
    ofRect(5,5, canvas[0].getWidth()-10,  canvas[0].getHeight()-10);
    ofFill();
    
    // draw some little circles
    ofCircle(mouseX, mouseY, ofRandom(5,10));
    canvas[0].end();
    
    // have the top of the box show random colors
    canvas[1].begin();
    ofSetColor(ofNoise(ofGetElapsedTimef()) * 255.0f, ofNoise(ofGetElapsedTimef() * .5) * 255.0f, ofNoise(ofGetElapsedTimef() * .25) * 255.0f);
    ofRect(0,0, canvas[1].getWidth(),  canvas[0].getHeight());
    canvas[1].end();
    
    // have the side of the box combine the two
    canvas[2].begin();
    // draw somewhat transparent
    ofSetColor(255, 150);
    canvas[0].draw(0,0);
    canvas[1].draw(0,0);
    canvas[2].end();
    
    // draw your mappers and canvases
    for (int i=0; i<3; i++){
        mappers[i].startMapping();
        canvas[i].draw(0,0);
        mappers[i].stopMapping();
        
        if ( bDrawBounds ){
            mappers[i].drawBoundingBox();
            
            // some instructions!
            ofDrawBitmapString("press '1', '2', or '3' to just select one box at a time!\npress 's' to save", 20,20);
        }
    }
    
}
//--------------------------------------------------------------
void testApp::renderNoisyRobotArmDemo(){
	
	float t = ofGetElapsedTimef(); 
	float shoulderNoiseAngleDegrees = 90 + 70.0 * ofSignedNoise(t * 1.00); 
	float elbowNoiseAngleDegrees    = 60 + 80.0 * ofSignedNoise(t * 0.87); 
	float wristNoiseAngleDegrees	= (2.5 * 72) + 45.0 * ofSignedNoise(t * 1.13); 
	
	float noisyR = ofNoise(t * 0.66); // different multiplicative step-factors 
	float noisyG = ofNoise(t * 0.73); // guarantee that our color channels are 
	float noisyB = ofNoise(t * 0.81); // not all (apparently) synchronized.
	
	ofEnableSmoothing();
	ofEnableAlphaBlending();
	ofSetCircleResolution(12);
	ofSetLineWidth(1.0);
	
	ofPushMatrix();
	
	// Translate over to the shoulder location; draw it
	ofTranslate(ofGetWidth()/2, 540, 0);
	ofRotate(shoulderNoiseAngleDegrees, 0, 0, 1);
	drawNoisyArmRect(100,24); 
	
	// Translate over to the forearm location; draw it
	ofTranslate(76, 0, 0);
	ofRotate(elbowNoiseAngleDegrees, 0, 0, 1);
	drawNoisyArmRect(90,16); 
	
	// Translate over to the hand location; draw it. 
	// Note that the color of the 'hand' is controlled by noise. 
	ofTranslate(74, 0, 0);
	ofRotate(wristNoiseAngleDegrees, 0, 0, 1);
	ofSetCircleResolution(5); // a kludgy "pentagon"
	ofFill();
	ofSetColor (ofFloatColor(noisyR, noisyG, noisyB, 0.75)); 
	ofEllipse(-10,0, 60,60); 
	ofNoFill();
	ofSetColor(0);
	ofEllipse(-10,0, 60,60); 
	ofSetCircleResolution(12);
	ofSetColor(0); 
	ofFill();
	ofEllipse(0,0, 7,7);
	
	ofPopMatrix();
}
void wSatellite::place( float _alt, ofVec3f _orbit ){
    altitud.set(0,0,_alt);
    orbit = _orbit;//.normalize();
    freq = ofNoise(lat*0.01,lon*0.01);
	
//	meshIndex = satelliteMesh->getNumVertices();
//	satelliteMesh->addVertex(*this);
}