[ Video ]
[ About ]
成長して枯れる。
Grow and wither.
[ Source ]
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#pragma once #include "ofMain.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 windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; ofEasyCam cam; vector<glm::vec3> location_list; glm::vec3 noise_seed; vector<vector<glm::vec3>> log_list; vector<ofColor> color_list; vector<float> life_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(3); ofEnableDepthTest(); this->noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(100, 3); vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces(); for (int i = 0; i < triangles.size(); i++) { ofPoint average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3; this->location_list.push_back(average); } } //-------------------------------------------------------------- void ofApp::update() { int radius = 3; while (this->log_list.size() < 450) { int location_index = ofRandom(this->location_list.size()); vector<glm::vec3> log; log.push_back(this->location_list[location_index]); this->log_list.push_back(log); this->color_list.push_back(ofColor(ofRandom(39, 139))); this->life_list.push_back(270); } for (int i = this->log_list.size() - 1; i >= 0; i--) { this->life_list[i] -= 1; if (this->life_list[i] < 0) { this->log_list.erase(this->log_list.begin() + i); this->color_list.erase(this->color_list.begin() + i); this->life_list.erase(this->life_list.begin() + i); continue; } auto x = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.x + ofGetFrameNum() * 0.005)), 0, 1, -15, 15); auto y = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.y + ofGetFrameNum() * 0.005)), 0, 1, -15, 15); auto z = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.z + ofGetFrameNum() * 0.005)), 0, 1, -15, 15); this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(x, y, z)); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(180); ofRotateY(ofGetFrameNum() * 0.75); for (int i = 0; i < this->log_list.size(); i++) { ofSetColor(this->color_list[i]); ofFill(); ofDrawSphere(this->log_list[i].front(), 2); auto alpha = this->life_list[i] > 60 ? 255 : ofMap(this->life_list[i], 0, 60, 0, 255); ofSetColor(this->color_list[i], alpha); ofNoFill(); ofBeginShape(); ofVertices(this->log_list[i]); ofEndShape(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |