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ねじる量を距離情報で調整する。
Adjust the amount of twisting with distance information.
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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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); ofNoFill(); ofSetColor(239, 19, 19); ofDrawRectangle(glm::vec2(), 685, 685); int small_radius = 40; int big_radius = 90; int center = (big_radius + small_radius) / 2; int gap = big_radius - small_radius; ofSetColor(239, 19, 19); for (int x = -220; x <= 220; x += 220) { for (int y = -220; y <= 220; y += 220) { ofPushMatrix(); ofTranslate(x, y); for (int deg = 0; deg < 360; deg += 10) { ofNoFill(); ofBeginShape(); for (int radius = small_radius; radius <= big_radius; radius += 1) { auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); auto noise_deg = ofMap(ofNoise(x, y, radius * 0.001 + ofGetFrameNum() * 0.01), 0, 1, -20, 20); auto param = ofMap(abs(center - radius), 0, gap * 0.5, 4, 0); auto draw_deg = deg + noise_deg * param; auto vertex = glm::vec2(radius * cos(draw_deg * DEG_TO_RAD), radius * sin(draw_deg * DEG_TO_RAD)); ofVertex(vertex); } ofEndShape(); ofFill(); ofDrawCircle(glm::vec2(small_radius * cos(deg * DEG_TO_RAD), small_radius * sin(deg * DEG_TO_RAD)), 2); ofDrawCircle(glm::vec2(big_radius * cos(deg * DEG_TO_RAD), big_radius * sin(deg * DEG_TO_RAD)), 2); } ofPopMatrix(); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |