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正方形と球。
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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) {}; glm::vec2 make_point(int len, int param); ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(39); ofSetLineWidth(1); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); ofNoFill(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum()); ofRotateX(cos(ofGetFrameNum() * 0.05) * 15); float len = 300; float span = len * 1.5; ofColor color; for (int k = 0; k < 4; k++) { ofRotateY(90); for (int i = 0; i < 20; i++) { vector<glm::vec3> vertices; for (int param = 0; param < 100; param++) { float deg = param * 3.6 - 135; float noise_value = ofNoise(k, cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, i * 0.013 + ofGetFrameNum() * 0.02); auto location = glm::vec3(this->make_point(len, param), 150); if (noise_value > 0.5) { vertices.push_back(location); } else { vertices.push_back(glm::normalize(location) * 100); } } color.setHsb(ofMap(i, 0, 15, 0, 255), 255, 200); ofSetColor(color); ofBeginShape(); ofVertices(vertices); ofEndShape(true); } } //ofFill(); this->cam.end(); } //-------------------------------------------------------------- glm::vec2 ofApp::make_point(int len, int param) { param = param % 100; if (param < 25) { return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5); } else if (param < 50) { return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5)); } else if (param < 75) { return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5); } else { return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5)); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |