junkiyoshi – プログラミング de 落描き

2025年7月25日

Connective vertex.

[ Video ]

[ About ]
頂点を繋ぐ。

[ 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);
	ofSetColor(39);
	ofNoFill();
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

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

	auto deg_span = 60;
	for (int x = -180; x <= 180; x += 360) {

		for (int y = -180; y <= 180; y += 360) {

			vector<glm::vec2> vertices_1;
			vector<glm::vec2> vertices_2;

			auto base_radius = 90;
			auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
			auto deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -360, 360);
			for (int deg = deg_start; deg < deg_start + 360; deg += deg_span) {

				auto noise_radius = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.05), 0, 1, 20, 180);
				auto noise_deg = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005), 0, 1, -360, 360);

				auto base = glm::vec2(x + base_radius * cos(deg * DEG_TO_RAD), y + base_radius * sin(deg * DEG_TO_RAD));
				auto target = glm::vec2(x + noise_radius * cos((deg + noise_deg) * DEG_TO_RAD), y + noise_radius * sin((deg + noise_deg) * DEG_TO_RAD));

				vertices_1.push_back(base);
				vertices_2.push_back(target);

				ofDrawLine(base, target);
			}

			ofBeginShape();
			ofVertices(vertices_1);
			ofEndShape(true);

			ofBeginShape();
			ofVertices(vertices_2);
			ofEndShape(true);

			deg_span -= 12;
		}
	}

	/*
	int start = 75;
	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());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofNoFill();

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

auto deg_span = 60;

for (int x = -180; x <= 180; x += 360) {

for (int y = -180; y <= 180; y += 360) {

vector<glm::vec2> vertices_1;

vector<glm::vec2> vertices_2;

auto base_radius = 90;

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

auto deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -360, 360);

for (int deg = deg_start; deg < deg_start + 360; deg += deg_span) {

auto noise_radius = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.05), 0, 1, 20, 180);

auto noise_deg = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005), 0, 1, -360, 360);

auto base = glm::vec2(x + base_radius * cos(deg * DEG_TO_RAD), y + base_radius * sin(deg * DEG_TO_RAD));

auto target = glm::vec2(x + noise_radius * cos((deg + noise_deg) * DEG_TO_RAD), y + noise_radius * sin((deg + noise_deg) * DEG_TO_RAD));

vertices_1.push_back(base);

vertices_2.push_back(target);

ofDrawLine(base, target);

}

ofBeginShape();

ofVertices(vertices_1);

ofEndShape(true);

ofBeginShape();

ofVertices(vertices_2);

ofEndShape(true);

deg_span -= 12;

}

int start = 75;

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());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250725

2025年7月24日

Color rings.

[ Video ]

[ About ]
カラーアーク。

[ 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(39);
	ofSetLineWidth(2);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	ofColor color;
	for (int x = 90; x < ofGetWindowWidth(); x += 180) {

		for (int y = 90; y < ofGetWindowHeight(); y += 180) {

			ofPushMatrix();
			ofTranslate(x, y);
			
			for (int radius = 30; radius < 75; radius += 5) {

				ofMesh face;
				auto min_radius = radius - 10;
				color.setHsb(ofRandom(255), 130, 255);

				int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, 0, 360 + 180);
				int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, -60, 240);

				auto deg_span = 2;
				for (int deg = start_deg; deg < start_deg + deg_len; deg += deg_span) {

					face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
					face.addVertex(glm::vec3() + glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), 0));
					face.addVertex(glm::vec3() + glm::vec3(min_radius * cos((deg + deg_span) * DEG_TO_RAD), min_radius * sin((deg + deg_span) * DEG_TO_RAD), 0));
					face.addVertex(glm::vec3() + glm::vec3(min_radius * cos(deg * DEG_TO_RAD), min_radius * sin(deg * DEG_TO_RAD), 0));
					
					face.addColor(ofColor(color, ofMap(deg, start_deg, start_deg + deg_len, 0, 255)));
					face.addColor(ofColor(color, ofMap(deg + deg_span, start_deg, start_deg + deg_len, 0, 255)));
					face.addColor(ofColor(color, ofMap(deg + deg_span, start_deg, start_deg + deg_len, 0, 255)));
					face.addColor(ofColor(color, ofMap(deg, start_deg, start_deg + deg_len, 0, 255)));

					face.addIndex(face.getNumVertices() - 4); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 2);
					face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 4);
				}

				face.draw();
			}

			ofPopMatrix();
		}
	}

	/*
	int start = 50;
	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());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(2);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofColor color;

for (int x = 90; x < ofGetWindowWidth(); x += 180) {

for (int y = 90; y < ofGetWindowHeight(); y += 180) {

ofPushMatrix();

ofTranslate(x, y);

for (int radius = 30; radius < 75; radius += 5) {

ofMesh face;

auto min_radius = radius - 10;

color.setHsb(ofRandom(255), 130, 255);

int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, 0, 360 + 180);

int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, -60, 240);

auto deg_span = 2;

for (int deg = start_deg; deg < start_deg + deg_len; deg += deg_span) {

face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

face.addVertex(glm::vec3() + glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), 0));

face.addVertex(glm::vec3() + glm::vec3(min_radius * cos((deg + deg_span) * DEG_TO_RAD), min_radius * sin((deg + deg_span) * DEG_TO_RAD), 0));

face.addVertex(glm::vec3() + glm::vec3(min_radius * cos(deg * DEG_TO_RAD), min_radius * sin(deg * DEG_TO_RAD), 0));

face.addColor(ofColor(color, ofMap(deg, start_deg, start_deg + deg_len, 0, 255)));

face.addColor(ofColor(color, ofMap(deg + deg_span, start_deg, start_deg + deg_len, 0, 255)));

face.addColor(ofColor(color, ofMap(deg, start_deg, start_deg + deg_len, 0, 255)));

face.addIndex(face.getNumVertices() - 4); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 2);

face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 4);

}

face.draw();

}

ofPopMatrix();

}

int start = 50;

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());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250724

2025年7月23日

Gradation arc.

[ Video ]

[ About ]
グラデーション円弧。

[ 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() {

	ofSeedRandom(39);
}

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

	for (int x = 90; x < ofGetWindowWidth(); x += 180) {

		for (int y = 90; y < ofGetWindowHeight(); y += 180) {

			ofPushMatrix();
			ofTranslate(x, y);

			for (int radius = 30; radius < 75; radius += 10) {

				ofMesh face;

				int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, 0, 360);
				int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, -120, 240);

				auto deg_span = 2;
				for (int deg = start_deg; deg < start_deg + deg_len; deg += deg_span) {

					face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
					face.addVertex(glm::vec3() + glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), 0));
					face.addVertex(glm::vec3() + glm::vec3(15 * cos((deg + deg_span) * DEG_TO_RAD), 15 * sin((deg + deg_span) * DEG_TO_RAD), 0));
					face.addVertex(glm::vec3() + glm::vec3(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD), 0));
					
					face.addColor(ofColor(39, ofMap(deg, start_deg, start_deg + deg_len, 0, 255)));
					face.addColor(ofColor(39, ofMap(deg + deg_span, start_deg, start_deg + deg_len, 0, 255)));
					face.addColor(ofColor(39, ofMap(deg + deg_span, start_deg, start_deg + deg_len, 0, 255)));
					face.addColor(ofColor(39, ofMap(deg, start_deg, start_deg + deg_len, 0, 255)));

					face.addIndex(face.getNumVertices() - 4); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 2);
					face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 4);
				}

				face.draw();
			}

			ofPopMatrix();
		}
	}

	/*
	int start = 50;
	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());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int x = 90; x < ofGetWindowWidth(); x += 180) {

for (int y = 90; y < ofGetWindowHeight(); y += 180) {

ofPushMatrix();

ofTranslate(x, y);

for (int radius = 30; radius < 75; radius += 10) {

ofMesh face;

int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, 0, 360);

int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, -120, 240);

auto deg_span = 2;

for (int deg = start_deg; deg < start_deg + deg_len; deg += deg_span) {

face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

face.addVertex(glm::vec3() + glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), 0));

face.addVertex(glm::vec3() + glm::vec3(15 * cos((deg + deg_span) * DEG_TO_RAD), 15 * sin((deg + deg_span) * DEG_TO_RAD), 0));

face.addVertex(glm::vec3() + glm::vec3(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD), 0));

face.addColor(ofColor(39, ofMap(deg, start_deg, start_deg + deg_len, 0, 255)));

face.addColor(ofColor(39, ofMap(deg + deg_span, start_deg, start_deg + deg_len, 0, 255)));

face.addColor(ofColor(39, ofMap(deg, start_deg, start_deg + deg_len, 0, 255)));

face.addIndex(face.getNumVertices() - 4); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 2);

face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 4);

}

face.draw();

}

ofPopMatrix();

}

int start = 50;

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());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250723

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