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画像とパーティクルを組み合わせ。
Image x Particle.
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#pragma once #include "ofMain.h" #include "ofFbo.h" #include "Particle.h" 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) {}; ofImage photo; ofFbo fbo; vector<shared_ptr<Particle>> particles; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofBackground(0); ofSetWindowTitle("Insta"); this->photo.loadImage("photo.png"); for (int i = 0; i < 1024 + 512; i++) { this->particles.push_back(shared_ptr<Particle>(new Particle())); } this->fbo.allocate(512, 512); } //-------------------------------------------------------------- void ofApp::update() { ofPixels pixels = this->photo.getPixelsRef(); ofColor pixel_color; for (int i = 0; i < this->particles.size(); i++) { this->particles[i]->update(); } this->fbo.begin(); ofClear(0); ofSetColor(255, 255 * mouseX / 512); this->photo.draw(0, 0); for (int i = 0; i < this->particles.size(); i++) { pixel_color = pixels.getColor(this->particles[i]->get_location().x, this->particles[i]->get_location().y); this->particles[i]->draw(this->particles, pixel_color); } this->fbo.end(); } //-------------------------------------------------------------- void ofApp::draw() { this->fbo.draw(0, 0); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(512, 512, OF_WINDOW); ofRunApp(new ofApp()); } |
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#pragma once #include "ofMain.h" class Particle { public: Particle(); ~Particle() {}; void apply_force(ofVec2f force); void update(); void draw(vector<shared_ptr<Particle>> particles, ofColor body_color); ofVec2f get_location(); private: ofVec2f location; ofVec2f velocity; ofVec2f acceleration; }; |
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#include "Particle.h" Particle::Particle() { this->location = ofVec2f(ofRandom(ofGetWidth()), ofRandom(ofGetHeight())); this->velocity = ofVec2f(ofRandom(-3, 3), ofRandom(-3, 3)); this->acceleration = ofVec2f(); } void Particle::apply_force(ofVec2f force) { this->acceleration += force; } void Particle::update() { this->acceleration += this->velocity; this->location += this->acceleration; this->acceleration *= 0; if (this->location.x < 0) { this->location.x = 0; this->velocity.x *= -1; } else if (this->location.x > ofGetWidth()) { this->location.x = ofGetWidth(); this->velocity.x *= -1; } if (this->location.y < 0) { this->location.y = 0; this->velocity.y *= -1; } else if (this->location.y > ofGetHeight()) { this->location.y = ofGetHeight(); this->velocity.y *= -1; } } void Particle::draw(vector<shared_ptr<Particle>> particles, ofColor body_color) { ofSetColor(body_color); ofDrawCircle(this->location, 3); float distance; for (int i = 0; i < particles.size(); i++) { distance = this->location.squareDistance(particles[i]->get_location()); if (distance > 0 && distance < 300) { ofDrawLine(this->location, particles[i]->get_location()); } } } ofVec2f Particle::get_location() { return this->location; } |