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ノイズ由来の線を結ぶ
Line 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 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); ofNoFill(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { array<float, 2> noise_seeds; for (int i = 0; i < noise_seeds.size(); i++) { noise_seeds[i] = ofRandom(1000); } auto span = 30; for (int x = 0; x <= ofGetWidth(); x += span) { vector<glm::vec2> vertices; int left_x = x - span * 0.5; int right_x = x + span * 0.5; vertices.push_back(glm::vec2(left_x, ofMap(ofNoise(noise_seeds[0], left_x * 0.0005 + ofGetFrameNum() * 0.003), 0, 1, 200, ofGetHeight() - 200))); vertices.push_back(glm::vec2(right_x, ofMap(ofNoise(noise_seeds[0], right_x * 0.0005 + ofGetFrameNum() * 0.003), 0, 1, 200, ofGetHeight() - 200))); vertices.push_back(glm::vec2(right_x, ofMap(ofNoise(noise_seeds[1], right_x * 0.0005 + ofGetFrameNum() * 0.003), 0, 1, 200, ofGetHeight() - 200))); vertices.push_back(glm::vec2(left_x, ofMap(ofNoise(noise_seeds[1], left_x * 0.0005 + ofGetFrameNum() * 0.003), 0, 1, 200, ofGetHeight() - 200))); auto distance = glm::distance(vertices[0], vertices[3]); ofFill(); ofSetColor(39, ofMap(distance, 0, ofGetHeight() * 0.45, 255, 0)); ofBeginShape(); ofVertices(vertices); ofEndShape(true); ofNoFill(); ofSetColor(239); ofBeginShape(); ofVertices(vertices); ofEndShape(true); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |