void ofxMarchingCubes::vertexInterp(float threshold,const ofPoint& p1,const ofPoint& p2, float valp1, float valp2, ofPoint& theVertice){
float mu;
if (ABS(threshold-valp1) < 0.00001){
theVertice.set(p1.x, p1.y, p1.z);
return;
}
if (ABS(threshold-valp2) < 0.00001){
theVertice.set(p2.x, p2.y, p2.z);
return;
}
if (ABS(valp1-valp2) < 0.00001){
theVertice.set(p1.x, p1.x, p1.z);
return;
}
mu = (threshold - valp1) / (valp2 - valp1);
theVertice.x = p1.x + mu * (p2.x - p1.x);
theVertice.y = p1.y + mu * (p2.y - p1.y);
theVertice.z = p1.z + mu * (p2.z - p1.z);
}
bool findClosestIntersectionLineAndPoly( ofPoint a, ofPoint b, vector<ofPoint> pts, ofPoint & closestPoint, int & sideId )
{
if(pts.size() <= 0 ) return false;
vector<float> dist;
vector<ofPoint> ipts;
vector<int> ids;
//if( pts[0].x != pts[ pts.size()-1].x && pts[0].y != pts[ pts.size()-1].y)
pts.push_back(pts[0]);
for( int i = 1; i < pts.size(); i++)
{
ofPoint iPt;
if ( intersectionTwoLines( pts[i-1], pts[i], a, b, &iPt ) )
{
dist.push_back( ( (a.x-iPt.x) *(a.x-iPt.x) + (a.y-iPt.y)*(a.y-iPt.y) ) );
ipts.push_back( iPt );
ids.push_back(i-1);
}
}
closestPoint.set(0,0);
if( ipts.size() <= 0 ) return false;
ofPoint p = ofPoint(0,0);
float cdist = 0;
for( int i = 0; i < dist.size(); i++)
{
if( i == 0 || dist[i] < cdist )
{
cdist = dist[i];
p.set( ipts[i].x,ipts[i].y );
sideId = ids[i];
}
}
closestPoint.set(p.x,p.y);
return true;
}
//--------------------------------------------------------------
void ofApp::setup(){
ofSetWindowShape(1024,1024);
ofSetBackgroundAuto(true);
//ofBackground(0,0,0); // background
ofBackground(128,128,128); // background
imageCrystal.loadImage("crystal.jpg"); //load initial image
point.set(10,10);
ofEnableBlendMode(OF_BLENDMODE_SUBTRACT);
}
//--------------------------------------------------------------
void camApp::draw(){
//hitTest();
ofSetupScreen();
float width = ofGetWidth();
float height = ofGetHeight();
//TODO: check why the background was fading weird on rise background - OpenGL related bug?
ofEnableAlphaBlending();
ofSetColor(255, 255, 255, 255);
background.draw(ofGetWidth()/2, ofGetHeight()/2, ofGetWidth(), ofGetHeight() );
ofSetColor(255, 255, 255, ofMap(riseFallPct, 0.49, 0.0, 0, 255, true));
background2.draw(ofGetWidth()/2, ofGetHeight()/2, ofGetWidth(), ofGetHeight());
world.setScale(ofGetWidth(), ofGetHeight(), ofGetWidth());
world.setOrigin(ofPoint(ofGetWidth()/2, ofGetHeight()/2, 0.0));
world.begin();
world.ourCameraSetup(width/2, height/2, 0.0, width, height, fov );
//world.drawDebugGrid();
glDisable(GL_DEPTH_TEST);
sceneGraph.updateCameraPos(world.camPos + ofPoint(0, 0, world.camDist));
sceneGraph.sortZ();
ofRectangle clipRect;
clipRect.width = 2.0 * ofGetWidth();
clipRect.height = 2.2 * ofGetHeight(); // lets give us some extra room!
clipRect.x = world.camPos.x - clipRect.width/2;
clipRect.y = world.camPos.y - clipRect.height/2;
//TODO: MAKE PLANT CLIPPING BETTER
sceneGraph.renderWithClipping(clipRect, -180+world.camPos.z, 100 + world.camPos.z, world.camDist, fov );
hand.updateCamToScreenCoords();
GLdouble model_view[16];
glGetDoublev(GL_MODELVIEW_MATRIX, model_view);
GLdouble projection[16];
glGetDoublev(GL_PROJECTION_MATRIX, projection);
GLint viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);
GLdouble X, Y, Z = 0;
gluProject(myPerson.pos.x, myPerson.pos.y, myPerson.pos.z, model_view, projection, viewport, &X, &Y, &Z);
personScreenPos.set(X, ofGetHeight()-Y, Z);
world.end();
ofSetupScreen();
//this node draws in screen space.
hand.draw();
if( percentOver > 0.0 ){
ofSetColor(255, 255, 255, 255*percentOver*1.2);
if( endCreatedInRise ){
backgroundEnd.draw(ofGetWidth()/2, ofGetHeight()/2, ofGetWidth(), ofGetHeight());
}else{
backgroundEnd2.draw(ofGetWidth()/2, ofGetHeight()/2, ofGetWidth(), ofGetHeight());
}
world.begin();
world.ourCameraSetup(width/2, height/2, 0.0, width, height, fov );
endGraphic.draw();
myPerson.draw();
world.end();
ofSetupScreen();
}
if( howTo.state != NODE_INACTIVE ){
howTo.draw();
myPerson.drawAtScreenPos(personScreenPos.x, personScreenPos.y, 0);
}
ofSetColor(10, 50, 150);
ofDrawBitmapString(hitsString, 10, 50);
ofEnableAlphaBlending();
}
void testApp::draw() {
// clear depth buffer (but not color buffer)
glClear(GL_DEPTH_BUFFER_BIT);
// enable blending
glEnable(GL_BLEND);
// choose semi-transparent black color
myObj.setColor(0, 0, 0, 0.05f);
// draw a black semi-transparent rectangle across whole screen to fade it out a bit
myObj.drawRect(0, 0, ofGetWidth(), ofGetHeight());
// disable blending
glDisable(GL_BLEND);
// get current time (could use ofGetElapsedTimef() but I DONT want it to be fps independant
// cos when I'm saving frames and it's running slow I want it to behave the same
float curTime = ofGetFrameNum() * 1.0f/60.0f;
// choose start rotation based on curTime
float theta = sin(curTime * 0.17f) * TWO_PI;
// set start position offset from center of screen
float startOffset = -50.0f * sin(curTime * 0.09f);
pos.set(ofGetWidth()/2 + cos(theta) * startOffset, ofGetHeight()/2 + sin(theta) * startOffset, 0);
// begin a triangle strip
myObj.begin(GL_TRIANGLE_STRIP);
for(int i=0; i<5000; i++) {
// calculate and set colors
// RGB components modulate sinusoidally, frequency increases with iteration count
myObj.setColor(sin(curTime * 0.8f + i * 0.0011f) * 0.5f + 0.5f, sin(curTime * 0.7f + i * 0.0013f) * 0.5f + 0.5f, sin(curTime * 0.3f + i * 0.0017f) * 0.5f + 0.5f);
// do some maths to calculate vertex positions
// modulate theta (offset rotation) sinusoidally, frequency increases with iteration count
// use two modulations with different frequencies to create complex harmonic motion
theta += sin(curTime * 0.1f + i * 0.00062f) * 2.0f * DEG_TO_RAD * i * 0.0004 + sin(curTime*0.2f + i * 0.0009f) * 3.0f * DEG_TO_RAD;
float cos_t = cos(theta);
float sin_t = sin(theta);
// x, y position cumulatively rotates
// z position modulates sinusoidally, frequency increases with iteration count
pos += ofPoint(cos_t, sin_t, sin(curTime * 0.5f + i*0.002f) * 0.5);
// send vertex data to myObj
myObj.addVertex(pos.x, pos.y, pos.z);
// do some math to calculate another vertex position
// perpendicular to rotation
// thickness modulates sinusoidally, frequency increases with iteration count
// also modulation frequency sinusoidally
ofPoint pos2 = pos + ofPoint(sin_t, -cos_t) * ofMap(sin(curTime * 0.4f * ( 1.0f + i * 0.001f) + i * 0.06f + sin(i*0.001f) * 0.2f), -1, 1, 5, 10 + i * 0.01f);
// place second vertex (can also pass pointer (array) to coordinates)
myObj.addVertex2v(pos2.v);
}
// end vertices and draw to screen
myObj.end();
}
//--------------------------------------------------------------
void testApp::setup(){
fadeActiveVal = 0;
fadeToBlack = 0;
// --------------- setup the gui window
GUI.setup(ofRectangle(0,0,500,800), "my sample gui");
GUI.setEventInterface(this);
GUI.addButton("repeatSound", "repeat sound", ofRectangle(10,10,120,30));
GUI.addButton("newColor", "new color", ofRectangle(10,50,120,30));
GUI.addTextEntry("textBox", "please enter text here", ofRectangle(10,120,180,90));
GUI.addSlider("volSmth", ofRectangle(10,260,180,30), 0, 1, 0.8, &ACM.volumeSmoothing);
GUI.addSlider("hueRange", ofRectangle(10,300,180,30), 0,400,35, &ACM.hueRange);
GUI.addSlider("hueShiftValStart", ofRectangle(10,340,180,30), 0,1,0.2, &ACM.hueShiftValStart);
GUI.addSlider("darkness", ofRectangle(10,340+40,180,30), 0,1,0.5, &ACM.darkness);
GUI.addSlider("hueFadeRate", ofRectangle(10,340+80,180,30), 0,1,0.96, &ACM.hueFadeRate);
GUI.addSlider("fadeToBlack", ofRectangle(10,340+120,180,30), 0,1,1, &fadeToBlack);
GUI.addSlider("delay", ofRectangle(10,340+160,180,30), 0,200,10, &XBC.delay);
GUI.addSlider("balloonFade", ofRectangle(10,340+200,180,30), 0,255,10, &XBC.balloonFade);
left = new float[256];
AA.setup(44100); // sample rate!
ACM.setup();
bPlaying = false;
ofSoundStreamSetup(2, 0, this, 44100, 256, 4);
ofSetFrameRate(30);
// ------- midi
// print input ports to console
midiIn.listPorts();
// open port by number
midiIn.openPort(0);
//midiIn.openPort("IAC Pure Data In"); // by name
//midiIn.openVirtualPort("ofxMidiIn Input"); // open a virtual port
// don't ignore sysex, timing, & active sense messages,
// these are ignored by default
midiIn.ignoreTypes(false, false, false);
// add testApp as a listener
midiIn.addListener(this);
// print received messages to the console
midiIn.setVerbose(true);
midiColor.set(0,0,0);
}
