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赤・緑・青の玉。
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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(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); auto size = 20; auto base_radius = 400; auto noise_seed = ofRandom(1000); ofColor color; for (int i = 0; i < 3; i++) { color.setHsb(ofMap(i, 0, 3, 0, 255), 180, 255); noise_seed += 0.05; for (int deg = 0; deg < 360; deg += 6) { auto base_location = glm::vec2(base_radius * cos(deg * DEG_TO_RAD), base_radius * sin(deg * DEG_TO_RAD)); auto base_noise_value = ofNoise(glm::vec4(noise_seed, base_location * 0.01, ofGetFrameNum() * 0.025)); auto prev_base_noise_value = ofNoise(glm::vec4(noise_seed, base_location * 0.01, (ofGetFrameNum() - 1) * 0.025)); auto radius = base_radius * 0.5; auto prev_radius = base_radius * 0.5; if (base_noise_value < 0.45) { radius = ofMap(base_noise_value, 0, 0.45, base_radius * 0, base_radius * 0.5); } else if (base_noise_value > 0.55) { radius = ofMap(base_noise_value, 0.55, 1, base_radius * 0.5, base_radius * 0.9); } if (prev_base_noise_value < 0.45) { prev_radius = ofMap(prev_base_noise_value, 0, 0.45, base_radius * 0, base_radius * 0.5); } else if (prev_base_noise_value > 0.55) { prev_radius = ofMap(prev_base_noise_value, 0.55, 1, base_radius * 0.5, base_radius * 0.9); } auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); auto prev_location = glm::vec2(prev_radius * cos(deg * DEG_TO_RAD), prev_radius * sin(deg * DEG_TO_RAD)); if (location == prev_location) { ofFill(); ofSetColor(ofColor(color, 200)); ofDrawCircle(prev_location, size * 0.5); } else { ofFill(); ofSetColor(ofColor(color, 128)); ofDrawCircle(location, radius < base_radius * 0.5 ? ofMap(radius, 3, base_radius * 0.5, 0, size * 0.5) : size * 0.5); ofNoFill(); ofSetColor(color); ofDrawCircle(location, radius < base_radius * 0.5 ? ofMap(radius, 3, base_radius * 0.5, 0, size * 0.5) : size * 0.5); } } } /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 450; 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/baf50d70d19ab682352753ea4557077a21fd5e23