[ Video ]
[ About ]
sin関数とcos関数を使ってxとyを求めながら、円を描書いていきます。
加えて、noise関数でz座標を計算して一部が飛び出た円にしてみました。
[ Source ]
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 |
#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; }; |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 |
#include "ofApp.h" //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofBackground(255); ofSetWindowTitle("Insta"); } //-------------------------------------------------------------- void ofApp::update(){ } //-------------------------------------------------------------- void ofApp::draw() { this->cam.setPosition(ofVec3f(0, -1024, 768)); this->cam.setTarget(ofVec3f(0, 0, 0)); this->cam.begin(); float radius = 300; float x, y, z; float noise_value; ofVec3f point, prev_point; for (int i = 0; i < 30; i++) { for (int deg = 0; deg <= 360; deg += 1) { x = radius * cos(deg * DEG_TO_RAD); y = radius * sin(deg * DEG_TO_RAD); noise_value = ofNoise(x * 0.01, y * 0.01, (ofGetFrameNum() - i) * 0.015); if (noise_value > 0.5) { z = 512 * round(noise_value * 10) / 10.f; } else { z = 512 * 0.5; } x = (radius + i * 30) * cos(deg * DEG_TO_RAD); y = (radius + i * 30) * sin(deg * DEG_TO_RAD); point = ofVec3f(x, y, z); if (deg != 0) { ofSetColor(0, 255 - i * 8.5); ofDrawLine(point, prev_point); } prev_point = point; } } this->cam.end(); } |
[ Link ]
https://github.com/junkiyoshi/Insta20171012
こんな感じで動画とソースを併せて記載できればいいかなと思います。