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多角形の数、回転、色がノイズの値で変化する事を可視化。
Visualize that the number, rotation, and color of polygons change with the value of noise.
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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(255); ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER); ofSetCircleResolution(36); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); int tmp_x, tmp_y; ofSetLineWidth(2); ofSetColor(0); // Param 1 ofBeginShape(); for (int x = 340; x >= 120; x -= 1) { tmp_y = ofMap(ofNoise(noise_seed.x, x * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -100, 100); ofVertex(x, tmp_y); } ofEndShape(); ofDrawLine(glm::vec2(120, -100), glm::vec2(120, 100)); ofDrawLine(glm::vec2(340, -100), glm::vec2(340, 100)); ofColor color; int hue = ofMap(ofNoise(noise_seed.x, 120 * 0.005 + ofGetFrameNum() * 0.01), 0, 1, 0, 255); color.setHsb(hue, 230, 255); ofSetColor(color); ofFill(); ofDrawCircle(glm::vec2(120, tmp_y), 15); ofSetColor(0); ofNoFill(); ofDrawCircle(glm::vec2(120, tmp_y), 15); // Param 2 ofBeginShape(); for (int x = -340; x <= -120; x += 1) { tmp_y = ofMap(ofNoise(noise_seed.y, x * 0.005 - ofGetFrameNum() * 0.01), 0, 1, -100, 100); ofVertex(x, tmp_y); } ofEndShape(); ofDrawLine(glm::vec2(-120, -100), glm::vec2(-120, 100)); ofDrawLine(glm::vec2(-340, -100), glm::vec2(-340, 100)); int gon = ofMap(ofNoise(noise_seed.y, -120 * 0.005 - ofGetFrameNum() * 0.01), 0, 1, 3, 8); int deg_span = 360 / gon; ofSetColor(255); ofFill(); ofBeginShape(); for (int deg = 0; deg < 360; deg += deg_span) { ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(-120, tmp_y)); } ofEndShape(true); ofSetColor(0); ofNoFill(); ofBeginShape(); for (int deg = 0; deg < 360; deg += deg_span) { ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(-120, tmp_y)); } ofEndShape(true); // Param 3 ofBeginShape(); for (int y = -340; y <= -120; y += 1) { tmp_x = ofMap(ofNoise(noise_seed.z, y * 0.005 - ofGetFrameNum() * 0.01), 0, 1, -100, 100); ofVertex(tmp_x, y); } ofEndShape(); ofDrawLine(glm::vec2(-100, -120), glm::vec2(100, -120)); ofDrawLine(glm::vec2(-100, -340), glm::vec2(100, -340)); int deg_start = ofMap(ofNoise(noise_seed.z, -120 * 0.005 - ofGetFrameNum() * 0.01), 0, 1, 0, 360); ofSetColor(255); ofFill(); ofBeginShape(); for (int deg = deg_start; deg < deg_start + 360; deg += 90) { ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(tmp_x, -120)); } ofEndShape(true); ofSetColor(0); ofNoFill(); ofBeginShape(); for (int deg = deg_start; deg < deg_start + 360; deg += 90) { ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(tmp_x, -120)); } ofEndShape(true); // Draw ofSetLineWidth(2); for (int y = 250; y > 0; y -= 10) { hue = ofMap(ofNoise(noise_seed.x, 120 * 0.005 + (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 0, 255); color.setHsb(hue, 230, 255); gon = ofMap(ofNoise(noise_seed.y, -120 * 0.005 - (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 3, 8); deg_span = 360 / gon; int deg_start = ofMap(ofNoise(noise_seed.z, -120 * 0.005 - (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 0, 360); float alpha = ofMap(y, 320, 0, 0, 255); ofSetColor(color, alpha); ofFill(); ofBeginShape(); for (int deg = deg_start; deg <= deg_start + 360; deg += deg_span) { ofVertex(glm::vec2(85 * cos(deg * DEG_TO_RAD), 85 * sin(deg * DEG_TO_RAD)) + glm::vec2(0, y)); } ofEndShape(true); ofSetColor(255, alpha); ofNoFill(); ofBeginShape(); for (int deg = deg_start; deg <= deg_start + 360; deg += deg_span) { ofVertex(glm::vec2(85 * cos(deg * DEG_TO_RAD), 85 * sin(deg * DEG_TO_RAD)) + glm::vec2(0, y)); } ofEndShape(true); } } //--------------------------------------------------------------6 int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |