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放射線状に発射。
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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 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) {}; ofMesh face; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(239); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); auto deg_span = 1; auto radius_span = 1; for (auto deg = 0; deg < 360; deg += 1) { for (auto radius = 30; radius <= 1024; radius += radius_span) { auto noise_location = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD)); auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); auto left = glm::vec2(radius * cos((deg + deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5) * DEG_TO_RAD)); auto right = glm::vec2(radius * cos((deg - deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5) * DEG_TO_RAD)); auto next_left = glm::vec2((radius + radius_span) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + radius_span) * sin((deg + deg_span * 0.5) * DEG_TO_RAD)); auto next_right = glm::vec2((radius + radius_span) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius + radius_span) * sin((deg - deg_span * 0.5) * DEG_TO_RAD)); auto noise_value = ofNoise(glm::vec3(noise_location * 10, radius * 0.001 - ofGetFrameNum() * 0.025)); auto threshold = 0.3; if (noise_value < threshold) { this->face.addVertex(glm::vec3(left, 0)); this->face.addVertex(glm::vec3(next_left, 0)); this->face.addVertex(glm::vec3(next_right, 0)); this->face.addVertex(glm::vec3(right, 0)); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 4); } } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); ofSetColor(39); this->face.draw(); /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 50; if (ofGetFrameNum() > start) { std::ostringstream os; os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/32e40c6be7cb494499ec170b9c7868edfd5ff33e