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パラメータの変化の仕方を見比べる。
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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) {}; float noise_param_1, noise_param_2; float font_size; ofTrueTypeFont font; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetColor(239); ofEnableDepthTest(); this->noise_param_1 = ofRandom(1000); this->noise_param_2 = ofRandom(1000); this->font_size = 40; this->font.loadFont("fonts/msgothic.ttc", this->font_size, true, true, true); } //-------------------------------------------------------------- void ofApp::update() { this->noise_param_1 += 0.025 * 2; if (ofGetFrameNum() % 50 < 20) { this->noise_param_2 += ofMap(ofGetFrameNum() % 50, 0, 20, 0.2, 0); } } //-------------------------------------------------------------- void ofApp::draw() { ofPushMatrix(); ofTranslate(ofGetWindowWidth() * 0.5, ofGetWindowHeight() * 0.25); ofSetColor(239); ofSetLineWidth(3); ofNoFill(); auto tmp_noise_param = this->noise_param_1; ofBeginShape(); for (int x = 0; x <= 330; x += 1) { auto y = ofMap(ofNoise(tmp_noise_param), 0, 1, -100, 100); ofVertex(x, y); tmp_noise_param += 0.025; } ofEndShape(); ofDrawLine(glm::vec2(0, -100), glm::vec2(0, 100)); ofDrawLine(glm::vec2(330, -100), glm::vec2(330, 100)); auto y = ofMap(ofNoise(this->noise_param_1), 0, 1, -100, 100); ofFill(); ofDrawCircle(0, y, 8); ofTranslate(-180, 0); ofSetColor(239); ofSetLineWidth(1.5); int noise_value = ofNoise(this->noise_param_1) * 100; this->font.drawString("0." + to_string(noise_value), -50, 20); tmp_noise_param = this->noise_param_1; for (int x = 0; x <= 10; x += 1) { auto deg = ofMap(ofNoise(tmp_noise_param), 0, 1, -180, 180); ofDrawCircle(glm::vec2(120 * cos(deg * DEG_TO_RAD), 120 * sin(deg * DEG_TO_RAD)), ofMap(x, 10, 0, 5, 0)); ofDrawCircle(glm::vec2(120 * cos((deg + 180) * DEG_TO_RAD), 120 * sin((deg + 180) * DEG_TO_RAD)), ofMap(x, 10, 0, 5, 0)); tmp_noise_param += 0.025; } ofPopMatrix(); ofPushMatrix(); ofTranslate(ofGetWindowWidth() * 0.5, ofGetWindowHeight() * 0.75); ofSetColor(239); ofSetLineWidth(3); ofNoFill(); tmp_noise_param = this->noise_param_2; ofBeginShape(); for (int x = 0; x <= 330; x += 1) { if (x > 0 && (ofGetFrameNum() + x) % 50 < 20) { tmp_noise_param += ofMap((ofGetFrameNum() + x) % 50, 0, 20, 0.2, 0); } y = ofMap(ofNoise(tmp_noise_param), 0, 1, -100, 100); ofVertex(x, y); } ofEndShape(); ofDrawLine(glm::vec2(0, -100), glm::vec2(0, 100)); ofDrawLine(glm::vec2(330, -100), glm::vec2(330, 100)); y = ofMap(ofNoise(this->noise_param_2), 0, 1, -100, 100); ofFill(); ofDrawCircle(0, y, 8); ofTranslate(-180, 0); ofSetColor(239); ofSetLineWidth(1.5); noise_value = ofNoise(this->noise_param_2) * 100; this->font.drawString("0." + to_string(noise_value), -50, 20); tmp_noise_param = this->noise_param_2; for (int x = 0; x <= 10; x += 1) { tmp_noise_param += 0.025; auto deg = ofMap(ofNoise(tmp_noise_param), 0, 1, -180, 180); ofDrawCircle(glm::vec2(120 * cos(deg * DEG_TO_RAD), 120 * sin(deg * DEG_TO_RAD)), ofMap(x, 10, 0, 5, 0)); ofDrawCircle(glm::vec2(120 * cos((deg + 180) * DEG_TO_RAD), 120 * sin((deg + 180) * DEG_TO_RAD)), ofMap(x, 10, 0, 5, 0)); } ofPopMatrix(); /* int start = 1; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |