[ Video ]
[ About ]
glm::normalize(vertex) * lengthで球体上の座標にする。
Use glm::normalize(vertex) * length to make the coordinates on the sphere.
[ 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 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 |
#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(1.2); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofNoFill(); for (int k = 0; k < 150; k++) { ofPushMatrix(); ofRotateZ(ofRandom(360)); ofRotateY(ofRandom(360)); ofRotateX(ofRandom(360)); auto location = glm::vec3(0, 0, 250); auto radius = (int)(ofRandom(1000) + ofGetFrameNum() * 2) % 180 - 100; if (radius < 0) { auto z = ofMap(radius, -100, 0, 1500, 0); ofSetColor(255); ofDrawLine(location + glm::vec3(0, 0, z), location + glm::vec3(0, 0, z + 40)); } else { ofSetColor(255, radius > 25 ? ofMap(radius, 25, 80, 255, 0) : 255); ofBeginShape(); for (int deg = 0; deg < 360; deg++) { auto vertex = location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); vertex = glm::normalize(vertex) * 250; ofVertex(vertex); } ofEndShape(true); } ofPopMatrix(); } ofFill(); ofSetColor(0); ofDrawSphere(230); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |