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中心からの距離をNoise関数の引数にして、画素の高さを決めています。
The distance from the center is taken as an argument of the noise function, and the height of the pixel is determined.
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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) {}; ofImage lenna; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofBackground(255); ofSetWindowTitle("Insta"); ofSetDepthTest(true); this->lenna.loadImage("Lenna.png"); } //-------------------------------------------------------------- void ofApp::update(){ } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateZ(180); ofPixels pixels = this->lenna.getPixelsRef(); ofColor pixel_color; float noise_value; float height; int size = 3; for (int x = 0; x < pixels.getWidth(); x += size) { for (int y = 0; y < pixels.getHeight(); y += size) { pixel_color = pixels.getColor(x, y); ofSetColor(pixel_color); float distance = ofVec2f(pixels.getWidth() / 2, pixels.getHeight() / 2).distance(ofVec2f(x, y)); noise_value = ofNoise(distance * 0.008 + ofGetFrameNum() * 0.025); height = 300 * noise_value; ofDrawBox(ofVec3f(x - ofGetWidth() / 2, y - ofGetHeight() / 2, height / 2), size, size, height); } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(512, 512, OF_WINDOW); ofRunApp(new ofApp()); } |