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ノイズ関数で面の座標を元に値を生成して、表示・非表示をコントロール。
Missing cube.
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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(239); ofSetColor(39); ofSetLineWidth(2); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.5); auto size = 15; for (int i = 0; i < 6; i += 1) { if (i < 4) { ofRotateY(90); for (int x = -150; x < 150; x += size) { for (int y = -150; y < 150; y += size) { auto location = glm::vec3(x, y, 150); float angle = PI * 0.5 * i; auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0)); auto noise_location = glm::vec4(location, 0) * rotation; auto noise_value = ofNoise(noise_location.x * 0.005, noise_location.y * 0.005, noise_location.z * 0.005, ofGetFrameNum() * 0.008); if (noise_value > 0.5) { ofFill(); ofSetColor(239); ofDrawRectangle(location, size - 1, size - 1); ofNoFill(); ofSetColor(39); ofDrawRectangle(location, size, size); } } } } else { ofRotateX(i == 4 ? 90 : 180); for (int x = -150; x < 150; x += size) { for (int y = -150; y < 150; y += size) { auto location = glm::vec3(x, y, 150); float angle = i == 4 ? PI * 0.5 : PI * 0.5 * 3; auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0)); auto noise_location = glm::vec4(location, 0) * rotation; auto noise_value = ofNoise(noise_location.x * 0.005, noise_location.y * 0.005, noise_location.z * 0.005, ofGetFrameNum() * 0.008); if (noise_value > 0.5) { ofFill(); ofSetColor(239); ofDrawRectangle(location, size - 1, size - 1); ofNoFill(); ofSetColor(39); ofDrawRectangle(location, size, size); } } } } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |