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モノクロの円をノイズでズラす。
Two color circle.
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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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(39); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); auto color_flag = true; for (auto radius = 150; radius < 720; radius += 20) { auto noise_deg = ofMap(ofNoise(radius * 0.1 + ofGetFrameNum() * 0.003), 0, 1, -360, 360); ofPushMatrix(); ofRotate(noise_deg); auto small_radius = radius - 20; auto big_radius = radius + 20; vector<glm::vec2> small_circle; vector<glm::vec2> big_circle; for (auto deg = 0; deg < 360; deg += 1) { small_circle.push_back(glm::vec2(small_radius * cos(deg * DEG_TO_RAD), small_radius * sin(deg * DEG_TO_RAD))); big_circle.push_back(glm::vec2(big_radius * cos(deg * DEG_TO_RAD), big_radius * sin(deg * DEG_TO_RAD))); if (deg % 30 == 0) { auto in_radius = radius - 10; auto out_radius = radius + 10; vector<glm::vec2> in; vector<glm::vec2> out; for (auto tmp_deg = deg; tmp_deg <= deg + 30; tmp_deg += 1) { in.push_back(glm::vec2(in_radius * cos(tmp_deg * DEG_TO_RAD), in_radius * sin(tmp_deg * DEG_TO_RAD))); out.push_back(glm::vec2(out_radius * cos(tmp_deg * DEG_TO_RAD), out_radius * sin(tmp_deg * DEG_TO_RAD))); } reverse(out.begin(), out.end()); ofFill(); ofSetColor(color_flag ? 239 : 39); ofBeginShape(); ofVertices(in); ofVertices(out); ofEndShape(true); ofNoFill(); ofSetColor(color_flag ? 139 : 239); ofBeginShape(); ofVertices(in); ofVertices(out); ofEndShape(true); color_flag = !color_flag; } } ofPopMatrix(); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |