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近づくと線が発生するパーティクルを円に整列して回転させる。glm::rotateを始めて使いました(ので間違ってるかも)
Dot on circle is rotate.
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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> locations; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(1.5); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->locations.clear(); int radius = 300; float noise_seed_x, noise_seed_y; for (int i = 0; i < 3; i++) { noise_seed_x = ofRandom(1000); noise_seed_y = ofRandom(1000); for (int deg = 0; deg < 360; deg += 5) { auto point = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0); auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.001), 0, 1, -PI, PI), glm::vec3(1, 0, 0)); auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, ofGetFrameNum() * 0.001), 0, 1, -PI, PI), glm::vec3(0, 1, 0)); this->locations.push_back(glm::vec4(point, 0) * rotation_x * rotation_y); } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); for (auto& location : this->locations) { ofSetColor(39); ofDrawSphere(location, 5); for (auto& other : this->locations) { float distance = glm::distance(location, other); if (distance < 120) { ofSetColor(39, ofMap(distance, 100, 120, 239, 0)); ofDrawLine(location, other); } } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |