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円のz座標をnoise関数(x, y, フレーム数 – 円数)で計算しています。
The z coordinate of the circle is calculated by the noise function (x, y, the number of frames – the number of circles).
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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) {}; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofBackground(255); ofSetWindowTitle("Insta"); ofSetColor(0); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); float x, y, z; float noise_value; ofVec3f prev_point; for (int radius = 50; radius < 1024; radius += 10) { for (int deg = 0; deg <= 360; deg += 1) { x = radius * cos(deg * DEG_TO_RAD); y = radius * sin(deg * DEG_TO_RAD); z = 100 * ofNoise(x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.015 - radius * 0.005); if (deg > 0) { ofDrawLine(prev_point, ofVec3f(x, y, z)); } prev_point = ofVec3f(x, y, z); } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |