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球体を這い回るパーティクル
Particle is creep about on particle.
製作する様子をライブ配信しました。
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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) {}; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetColor(239); ofNoFill(); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum()); float radius = 250; ofNoFill(); for (int i = 0; i < 150; i++) { vector<glm::vec3> vertices; float noise_seed_x = ofRandom(1000); float noise_seed_y = ofRandom(1000); float noise_seed_z = ofRandom(1000); for (int len = 0; len < 30; len++) { float x = ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + len) * 0.005), 0, 1, -ofGetWidth() * 0.5, ofGetHeight() * 0.5); float y = ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + len) * 0.005), 0, 1, -ofGetHeight() * 0.5, ofGetHeight() * 0.5); float z = ofMap(ofNoise(noise_seed_z, (ofGetFrameNum() + len) * 0.005), 0, 1, -ofGetWidth() * 0.5, ofGetHeight() * 0.5); glm::vec3 point = glm::vec3(x, y, z); if (glm::length(point) < radius) { point = glm::normalize(point) * (radius + 1); } vertices.push_back(point); } ofBeginShape(); ofSetColor(239, ofMap(glm::length(vertices.back()), radius, radius + 100, 255, 0)); ofVertices(vertices); ofEndShape(); ofDrawSphere(vertices.back(), 3); } ofFill(); ofSetColor(39); ofDrawSphere(glm::vec3(), radius); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |