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くしゃくしゃな正方形
Crumpled square.
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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); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(2); ofNoFill(); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { int span = 120; for (int x = span * 0.5; x <= ofGetWidth() - span * 0.5; x += span) { for (int y = span * 0.5; y <= ofGetHeight() - span * 0.5; y += span) { auto base_location = glm::vec3(x, y, 0); for (int len = 20; len < 120; len += 20) { vector<glm::vec3> vertices; for (int param = 0; param < 100; param++) { glm::vec3 location = glm::vec3(this->make_point(len, param), 0); auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise((base_location.x + location.x) * 0.003, ofGetFrameNum() * 0.003), 0, 1, -PI, PI), glm::vec3(1, 0, 0)); auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise((base_location.y + location.y) * 0.003, ofGetFrameNum() * 0.003), 0, 1, -PI, PI), glm::vec3(0, 1, 0)); auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise((base_location.z + location.z) * 0.003, ofGetFrameNum() * 0.003), 0, 1, -PI, PI), glm::vec3(0, 0, 1)); glm::vec3 tmp_location = glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x; vertices.push_back(base_location + tmp_location); } ofBeginShape(); ofVertices(vertices); ofEndShape(true); } } } } //-------------------------------------------------------------- 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()); } |