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radiusが0以下の場合は雫、radiusが0以上の時は波紋。
If radius is less than or equal to 0, it is a drop; if radius is greater than or equal to 0, it is a ripple.
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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 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; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(2); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.45); ofNoFill(); auto len = 300; for (int i = 0; i < 8; i++) { if (i < 4) { ofRotateX(90); } else if (i < 5) { ofRotateY(90); } else { ofRotateY(180); } for (int k = 0; k < 30; k++) { auto location = glm::vec3(ofRandom(-len * 0.5, len * 0.5), ofRandom(-len * 0.5, len * 0.5), len * 0.5); auto radius = (int)(ofRandom(1000) + ofGetFrameNum()) % 150 - 100; if (radius < 0) { auto z = ofMap(radius, -100, 0, len * 10, 0); ofDrawLine(location + glm::vec3(0, 0, z), location + glm::vec3(0, 0, z + 50)); } else { ofSetColor(255, radius > 25 ? ofMap(radius, 25, 50, 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)); if (vertex.y > len * 0.5) { vertex.y = len * 0.5; } if (vertex.y < -len * 0.5) { vertex.y = -len * 0.5; } if (vertex.x > len * 0.5) { vertex.x = len * 0.5; } if (vertex.x < -len * 0.5) { vertex.x = -len * 0.5; } ofVertex(vertex); } ofEndShape(true); } } } ofFill(); ofSetColor(0); ofDrawBox(len * 0.75); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |