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Xを15度傾ける
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#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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetColor(255); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); for (int x = -300; x <= 300; x += 30) { for (int y = -300; y <= 300; y += 30) { ofPushMatrix(); ofTranslate(x, y); ofRotate(15); auto noise_value = ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.01); noise_value = noise_value < 0.45 ? 0.1 : ofMap(noise_value, 0.45, 1, 0.1, 1); auto radius = ofMap(noise_value, 0, 1, 0, 45); vector<glm::vec2> vertices; vertices.push_back(glm::vec2(radius * cos(45 * DEG_TO_RAD), radius * sin(45 * DEG_TO_RAD))); vertices.push_back(glm::vec2(radius * cos(225 * DEG_TO_RAD), radius * sin(225 * DEG_TO_RAD))); vertices.push_back(glm::vec2(radius * cos(135 * DEG_TO_RAD), radius * sin(135 * DEG_TO_RAD))); vertices.push_back(glm::vec2(radius * cos(315 * DEG_TO_RAD), radius * sin(315 * DEG_TO_RAD))); ofDrawLine(vertices[0], vertices[1]); ofDrawLine(vertices[2], vertices[3]); ofPopMatrix(); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |