openFrameworks – プログラミング de 落描き

2026年2月8日

Circle mesh.

[ Video ]

[ About ]
円メッシュ。

[ Source ]

#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) {};
};

#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) {};

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetLineWidth(2);
}

//--------------------------------------------------------------
void ofApp::update() {

}

//--------------------------------------------------------------
void ofApp::draw() {

	ofTranslate(ofGetWindowSize() * 0.5);

	for (int k = 0; k < 18; k++) {

		ofRotate(5);

		vector<glm::vec2> vertices;
		for (int i = 0; i < 65; i++) {

			auto radius = ofMap(sin((ofGetFrameNum() + i) * 0.314 * 0.75), -1, 1, 200, 300);
			auto deg = (ofGetFrameNum() + i) * 4;
			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

			vertices.push_back(location);
		}

		ofSetColor(ofMap(k, 0, 18, 200, 39));

		ofNoFill();
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape();

		ofFill();
		ofDrawCircle(vertices[vertices.size() - 1], 3);
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 500;
	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());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

}

//--------------------------------------------------------------

void ofApp::update() {

}

//--------------------------------------------------------------

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (int k = 0; k < 18; k++) {

ofRotate(5);

vector<glm::vec2> vertices;

for (int i = 0; i < 65; i++) {

auto radius = ofMap(sin((ofGetFrameNum() + i) * 0.314 * 0.75), -1, 1, 200, 300);

auto deg = (ofGetFrameNum() + i) * 4;

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

vertices.push_back(location);

}

ofSetColor(ofMap(k, 0, 18, 200, 39));

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

ofFill();

ofDrawCircle(vertices[vertices.size() - 1], 3);

}

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 500;

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());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/ad3decba16248b5fc14ec8d88c044edc7f7e31e8

2026年2月7日

Twin Circle.

[ Video ]

[ About ]
対の円。

[ Source ]

#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) {};

	vector<vector<glm::vec2>> log_list;
	vector<ofColor> color_list;
	vector<float> life_list;
};

#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) {};

vector<vector<glm::vec2>> log_list;

vector<ofColor> color_list;

vector<float> life_list;

};

#include "ofApp.h"	

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofNoFill();
}

//--------------------------------------------------------------
void ofApp::update() {

	ofColor color;
	for (int i = 0; i < 20; i++) {

		auto deg = ofRandom(360);
		auto start_radius = ofRandom(2) < 1 ? 180 : 320;
		auto location = glm::vec2(start_radius * cos(deg * DEG_TO_RAD), start_radius * sin(deg * DEG_TO_RAD));

		color.setHsb(start_radius == 180 ? ofRandom(60, 80) : ofRandom(190, 210), 200, 255);

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);
		this->color_list.push_back(color);
		this->life_list.push_back(ofRandom(100, 150));
	}

	int radius = 4;
	for (int i = this->log_list.size() - 1; i >= 0; i--) {

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

			this->log_list.erase(this->log_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);

			continue;
		}

		int count = 0;
		while (true) {

			auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.01, count * 0.01 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360);
			auto tmp = this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			if (glm::length(tmp) > 180 && glm::length(tmp) < 320) {

				this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				break;
			}
			else {

				count++;
			}
		}

		while (this->log_list[i].size() > 100) {

			this->log_list[i].erase(this->log_list[i].begin());
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	ofTranslate(ofGetWindowSize() * 0.5);

	for (int i = 0; i < this->log_list.size(); i++) {

		ofPushMatrix();

		int t = this->color_list[i].getHue();
		t >= 190 && t <= 210 ? ofRotateZ(ofGetFrameNum() * 0.36) : ofRotateZ(ofGetFrameNum() * -0.36);

		if (this->life_list[i] > 80) {

			ofSetColor(this->color_list[i]);
			ofSetLineWidth(1);
		}
		else {

			ofSetColor(ofColor(this->color_list[i], ofMap(this->life_list[i], 0, 80, 0, 255)));
			ofSetLineWidth(ofMap(this->life_list[i], 0, 80, 0, 1));
		}

		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();

		ofPopMatrix();
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 500;
	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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#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

}

//--------------------------------------------------------------

void ofApp::update() {

ofColor color;

for (int i = 0; i < 20; i++) {

auto deg = ofRandom(360);

auto start_radius = ofRandom(2) < 1 ? 180 : 320;

auto location = glm::vec2(start_radius * cos(deg * DEG_TO_RAD), start_radius * sin(deg * DEG_TO_RAD));

color.setHsb(start_radius == 180 ? ofRandom(60, 80) : ofRandom(190, 210), 200, 255);

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->color_list.push_back(color);

this->life_list.push_back(ofRandom(100, 150));

}

int radius = 4;

for (int i = this->log_list.size() - 1; i >= 0; i--) {

this->life_list[i] -= 1;

if (this->life_list[i] < 0) {

this->log_list.erase(this->log_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

this->life_list.erase(this->life_list.begin() + i);

continue;

}

int count = 0;

while (true) {

auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.01, count * 0.01 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360);

auto tmp = this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

if (glm::length(tmp) > 180 && glm::length(tmp) < 320) {

this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

break;

}

else {

count++;

}

while (this->log_list[i].size() > 100) {

this->log_list[i].erase(this->log_list[i].begin());

}

//--------------------------------------------------------------

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (int i = 0; i < this->log_list.size(); i++) {

ofPushMatrix();

int t = this->color_list[i].getHue();

t >= 190 && t <= 210 ? ofRotateZ(ofGetFrameNum() * 0.36) : ofRotateZ(ofGetFrameNum() * -0.36);

if (this->life_list[i] > 80) {

ofSetColor(this->color_list[i]);

ofSetLineWidth(1);

}

else {

ofSetColor(ofColor(this->color_list[i], ofMap(this->life_list[i], 0, 80, 0, 255)));

ofSetLineWidth(ofMap(this->life_list[i], 0, 80, 0, 1));

}

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

ofPopMatrix();

}

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 500;

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());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/451c4625152faa83174e93d4699342738712faa8

2026年2月6日

Two Colors, many Line.

[ Video ]

[ About ]
二色、多くの線。

[ Source ]

#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) {};

	vector<vector<glm::vec2>> log_list;
	vector<ofColor> color_list;
	vector<float> life_list;
};

#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) {};

vector<vector<glm::vec2>> log_list;

vector<ofColor> color_list;

vector<float> life_list;

};

#include "ofApp.h"	

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);
	ofNoFill();
}

//--------------------------------------------------------------
void ofApp::update() {

	ofColor color;
	for (int i = 0; i < 20; i++) {

		auto deg = ofRandom(360);
		auto start_radius = ofRandom(2) < 1 ? 190 : 310;
		auto location = glm::vec2(start_radius * cos(deg * DEG_TO_RAD), start_radius * sin(deg * DEG_TO_RAD));

		color.setHsb(start_radius == 190 ? 0 : 128, 255, 255);

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);
		this->color_list.push_back(color);
		this->life_list.push_back(ofRandom(100, 150));
	}

	int radius = 4;
	for (int i = this->log_list.size() - 1; i >= 0; i--) {

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

			this->log_list.erase(this->log_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);

			continue;
		}

		int count = 0;
		while (true) {

			auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.01, count * 0.01 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360);
			auto tmp = this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			if (glm::length(tmp) > 190 && glm::length(tmp) < 310) {

				this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				break;
			}
			else {

				count++;
			}
		}
		while (this->log_list[i].size() > 600) {

			this->log_list[i].erase(this->log_list[i].begin());
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	ofRotateZ(90);

	for (int i = 0; i < this->log_list.size(); i++) {

		if (this->life_list[i] > 80) {

			ofSetColor(this->color_list[i]);
			ofSetLineWidth(2);
		}
		else {

			ofSetColor(ofColor(this->color_list[i], ofMap(this->life_list[i], 0, 80, 0, 255)));
			ofSetLineWidth(ofMap(this->life_list[i], 0, 80, 0, 2));
		}

		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();
	}
	
	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 500;
	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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#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);

ofNoFill();

}

//--------------------------------------------------------------

void ofApp::update() {

ofColor color;

for (int i = 0; i < 20; i++) {

auto deg = ofRandom(360);

auto start_radius = ofRandom(2) < 1 ? 190 : 310;

auto location = glm::vec2(start_radius * cos(deg * DEG_TO_RAD), start_radius * sin(deg * DEG_TO_RAD));

color.setHsb(start_radius == 190 ? 0 : 128, 255, 255);

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->color_list.push_back(color);

this->life_list.push_back(ofRandom(100, 150));

}

int radius = 4;

for (int i = this->log_list.size() - 1; i >= 0; i--) {

this->life_list[i] -= 1;

if (this->life_list[i] < 0) {

this->log_list.erase(this->log_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

this->life_list.erase(this->life_list.begin() + i);

continue;

}

int count = 0;

while (true) {

auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.01, count * 0.01 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360);

auto tmp = this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

if (glm::length(tmp) > 190 && glm::length(tmp) < 310) {

this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

break;

}

else {

count++;

}

while (this->log_list[i].size() > 600) {

this->log_list[i].erase(this->log_list[i].begin());

}

//--------------------------------------------------------------

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

ofRotateZ(90);

for (int i = 0; i < this->log_list.size(); i++) {

if (this->life_list[i] > 80) {

ofSetColor(this->color_list[i]);

ofSetLineWidth(2);

}

else {

ofSetColor(ofColor(this->color_list[i], ofMap(this->life_list[i], 0, 80, 0, 255)));

ofSetLineWidth(ofMap(this->life_list[i], 0, 80, 0, 2));

}

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 500;

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());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/a0f1ffbb14fb0b0b5b737393d54284233527b7ef

2026年2月
月	火	水	木	金	土	日
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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