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赤・緑・青の玉。
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | #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) {}; }; | 
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | #include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { 	ofSetFrameRate(25); 	ofSetWindowTitle("openFrameworks"); 	ofBackground(39); 	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); } //-------------------------------------------------------------- void ofApp::update() { 	ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { 	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); 	auto size = 20; 	auto base_radius = 400; 	auto noise_seed = ofRandom(1000); 	ofColor color; 	for (int i = 0; i < 3; i++) { 		color.setHsb(ofMap(i, 0, 3, 0, 255), 180, 255); 		noise_seed += 0.05; 		for (int deg = 0; deg < 360; deg += 6) { 			auto base_location = glm::vec2(base_radius * cos(deg * DEG_TO_RAD), base_radius * sin(deg * DEG_TO_RAD)); 			auto base_noise_value = ofNoise(glm::vec4(noise_seed, base_location * 0.01, ofGetFrameNum() * 0.025)); 			auto prev_base_noise_value = ofNoise(glm::vec4(noise_seed, base_location * 0.01, (ofGetFrameNum() - 1) * 0.025)); 			auto radius = base_radius * 0.5; 			auto prev_radius = base_radius * 0.5; 			if (base_noise_value < 0.45) { radius = ofMap(base_noise_value, 0, 0.45, base_radius * 0, base_radius * 0.5); } 			else if (base_noise_value > 0.55) { radius = ofMap(base_noise_value, 0.55, 1, base_radius * 0.5, base_radius * 0.9); } 			if (prev_base_noise_value < 0.45) { prev_radius = ofMap(prev_base_noise_value, 0, 0.45, base_radius * 0, base_radius * 0.5); } 			else if (prev_base_noise_value > 0.55) { prev_radius = ofMap(prev_base_noise_value, 0.55, 1, base_radius * 0.5, base_radius * 0.9); } 			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); 			auto prev_location = glm::vec2(prev_radius * cos(deg * DEG_TO_RAD), prev_radius * sin(deg * DEG_TO_RAD)); 			if (location == prev_location) { 				ofFill(); 				ofSetColor(ofColor(color, 200)); 				ofDrawCircle(prev_location, size * 0.5); 			} 			else { 				ofFill(); 				ofSetColor(ofColor(color, 128)); 				ofDrawCircle(location, radius < base_radius * 0.5 ? ofMap(radius, 3, base_radius * 0.5, 0, size * 0.5) : size * 0.5); 				ofNoFill(); 				ofSetColor(color); 				ofDrawCircle(location, radius < base_radius * 0.5 ? ofMap(radius, 3, base_radius * 0.5, 0, size * 0.5) : size * 0.5); 			} 		} 	} 	/* 	// ffmpeg -i img_%04d.jpg aaa.mp4 	int start = 450; 	if (ofGetFrameNum() > start) { 		std::ostringstream os; 		os << std::setw(4) << std::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()); } | 
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https://github.com/junkiyoshi/DoodleDeProgramming/tree/baf50d70d19ab682352753ea4557077a21fd5e23