openFrameworks – ページ 8 – プログラミング de 落描き

2026年1月2日2026年1月2日

HNY.

[ Video ]

[ About ]
ハッピー・ニュー・イヤー

[ 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofTrueTypeFont font;
	vector<glm::vec2> font_location_list;

	vector<glm::vec2> location_list;
	vector<float> radius_list;
	vector<float> speed_list;
	vector<float> max_radius_list;
	vector<ofColor> color_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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofTrueTypeFont font;

vector<glm::vec2> font_location_list;

vector<glm::vec2> location_list;

vector<float> radius_list;

vector<float> speed_list;

vector<float> max_radius_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

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

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, true, true);

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	ofClear(0);
	ofSetColor(0);

	auto word = "HNY";
	font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) - 300);

	fbo.end();
	auto span = 2;
	ofPixels pixels;
	fbo.readToPixels(pixels);
	for (int x = 0; x < 700; x += span) {

		for (int y = 0; y < 720; y += span) {

			ofColor color = pixels.getColor(x, y);
			if (color != ofColor(0, 0)) {

				this->font_location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, y - ofGetHeight() * 0.25, 0));
			}
		}
	}
}

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

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

		this->radius_list[i] += this->speed_list[i];

		if (this->radius_list[i] > this->max_radius_list[i]) {

			this->location_list.erase(this->location_list.begin() + i);
			this->radius_list.erase(this->radius_list.begin() + i);
			this->speed_list.erase(this->speed_list.begin() + i);
			this->max_radius_list.erase(this->max_radius_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

	ofColor color;
	for (int i = 0; i < 30; i++) {

		int rnd_index = ofRandom(this->font_location_list.size());

		auto location = this->font_location_list[rnd_index];
		this->location_list.push_back(location);
		this->radius_list.push_back(1);
		this->speed_list.push_back(0.5);
		this->max_radius_list.push_back(13);
		color.setHsb(ofRandom(255), 180, 255);
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		if (this->radius_list[i] < this->max_radius_list[i] * 0.5) {

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

			ofSetColor(ofColor(this->color_list[i], ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 0)));
		}

		ofNoFill();
		ofDrawCircle(this->location_list[i], this->radius_list[i]);

		ofFill();
		ofDrawCircle(this->location_list[i], this->radius_list[i] * 0.4);
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 50;
	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);

ofNoFill();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, true, true);

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

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

ofClear(0);

ofSetColor(0);

auto word = "HNY";

font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) - 300);

fbo.end();

auto span = 2;

ofPixels pixels;

fbo.readToPixels(pixels);

for (int x = 0; x < 700; x += span) {

for (int y = 0; y < 720; y += span) {

ofColor color = pixels.getColor(x, y);

if (color != ofColor(0, 0)) {

this->font_location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, y - ofGetHeight() * 0.25, 0));

}

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

void ofApp::update() {

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

this->radius_list[i] += this->speed_list[i];

if (this->radius_list[i] > this->max_radius_list[i]) {

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

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

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

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

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

}

ofColor color;

for (int i = 0; i < 30; i++) {

int rnd_index = ofRandom(this->font_location_list.size());

auto location = this->font_location_list[rnd_index];

this->location_list.push_back(location);

this->radius_list.push_back(1);

this->speed_list.push_back(0.5);

this->max_radius_list.push_back(13);

color.setHsb(ofRandom(255), 180, 255);

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

if (this->radius_list[i] < this->max_radius_list[i] * 0.5) {

ofSetColor(this->color_list[i]);

}

else {

ofSetColor(ofColor(this->color_list[i], ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 0)));

}

ofNoFill();

ofDrawCircle(this->location_list[i], this->radius_list[i]);

ofFill();

ofDrawCircle(this->location_list[i], this->radius_list[i] * 0.4);

}

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

int start = 50;

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/cb6fb1b8140c21e7b3b0a3e99e95ec6d1b88ea0a

2026年1月1日

Happy New Year.

[ Video ]

[ About ]
あけましておめでとうございます。

[ 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofTrueTypeFont font;
	vector<glm::vec2> font_location_list;

	vector<glm::vec2> location_list;
	vector<float> radius_list;
	vector<float> speed_list;
	vector<float> max_radius_list;
	vector<ofColor> color_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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofTrueTypeFont font;

vector<glm::vec2> font_location_list;

vector<glm::vec2> location_list;

vector<float> radius_list;

vector<float> speed_list;

vector<float> max_radius_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 220, true, true, true);

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	ofClear(0);
	ofSetColor(0);

	auto word = "2026";
	font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) - 300);

	fbo.end();
	auto span = 2;
	ofPixels pixels;
	fbo.readToPixels(pixels);
	for (int x = 0; x < 700; x += span) {

		for (int y = 0; y < 720; y += span) {

			ofColor color = pixels.getColor(x, y);
			if (color != ofColor(0, 0)) {

				this->font_location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, y - ofGetHeight() * 0.25, 0));
			}
		}
	}
}

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

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

		this->radius_list[i] += this->speed_list[i];

		if (this->radius_list[i] > this->max_radius_list[i]) {

			this->location_list.erase(this->location_list.begin() + i);
			this->radius_list.erase(this->radius_list.begin() + i);
			this->speed_list.erase(this->speed_list.begin() + i);
			this->max_radius_list.erase(this->max_radius_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

	ofColor color(39);
	for (int i = 0; i < 50; i++) {

		int rnd_index = ofRandom(this->font_location_list.size());

		auto location = this->font_location_list[rnd_index];
		this->location_list.push_back(location);
		this->radius_list.push_back(1);
		this->speed_list.push_back(ofRandom(0.25, 0.5));
		this->max_radius_list.push_back(ofRandom(5, 15));
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		if (this->radius_list[i] < this->max_radius_list[i] * 0.5) {

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

			ofSetColor(ofColor(this->color_list[i], ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 0)));
		}

		ofDrawCircle(this->location_list[i], this->radius_list[i]);
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 50;
	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);

ofSetLineWidth(2);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 220, true, true, true);

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

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

ofClear(0);

ofSetColor(0);

auto word = "2026";

font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) - 300);

fbo.end();

auto span = 2;

ofPixels pixels;

fbo.readToPixels(pixels);

for (int x = 0; x < 700; x += span) {

for (int y = 0; y < 720; y += span) {

ofColor color = pixels.getColor(x, y);

if (color != ofColor(0, 0)) {

this->font_location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, y - ofGetHeight() * 0.25, 0));

}

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

void ofApp::update() {

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

this->radius_list[i] += this->speed_list[i];

if (this->radius_list[i] > this->max_radius_list[i]) {

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

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

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

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

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

}

ofColor color(39);

for (int i = 0; i < 50; i++) {

int rnd_index = ofRandom(this->font_location_list.size());

auto location = this->font_location_list[rnd_index];

this->location_list.push_back(location);

this->radius_list.push_back(1);

this->speed_list.push_back(ofRandom(0.25, 0.5));

this->max_radius_list.push_back(ofRandom(5, 15));

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

if (this->radius_list[i] < this->max_radius_list[i] * 0.5) {

ofSetColor(this->color_list[i]);

}

else {

ofSetColor(ofColor(this->color_list[i], ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 0)));

}

ofDrawCircle(this->location_list[i], this->radius_list[i]);

}

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

int start = 50;

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/631fb8ca3a6bc4980c9fddb5747e549420512172

2025年12月31日

Grids.

[ Video ]

[ About ]
格子状。

[ 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) {};

	ofEasyCam cam;
	ofMesh face, line;
};

#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) {};

ofEasyCam cam;

ofMesh face, line;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	this->face.clear();
	this->line.clear();

	float phi_deg_step = 0.1;
	float theta_deg_step = 0.1;
	float noise_threshold_1 = 0.45;
	float noise_threshold_2 = 0.55;
	float noise_span = 8;
	float radius = 280;

	ofColor face_color(0);
	ofColor line_color(255);

	for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

		for (float theta_deg = 61; theta_deg <= 121; theta_deg += theta_deg_step) {

			auto noise_value = ofNoise(
				cos(phi_deg * DEG_TO_RAD) * noise_span,
				sin(phi_deg * DEG_TO_RAD) * noise_span,
				cos(theta_deg * DEG_TO_RAD) * noise_span,
				ofGetFrameNum() * 0.02);

			if ((int)theta_deg % 15 < 2 || (int)phi_deg % 15 < 2) { noise_value = 0.5; }
			if (noise_value < noise_threshold_1 || noise_value > noise_threshold_2) { continue; }

			auto noise_value_1 = ofNoise(
				cos(phi_deg * DEG_TO_RAD) * noise_span,
				sin(phi_deg * DEG_TO_RAD) * noise_span,
				cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * noise_span,
				ofGetFrameNum() * 0.02);
			auto noise_value_2 = ofNoise(
				cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * noise_span,
				sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * noise_span,
				cos(theta_deg * DEG_TO_RAD) * noise_span,
				ofGetFrameNum() * 0.02);
			auto noise_value_3 = ofNoise(
				cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * noise_span,
				sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * noise_span,
				cos(theta_deg * DEG_TO_RAD) * noise_span,
				ofGetFrameNum() * 0.02);
			auto noise_value_4 = ofNoise(
				cos(phi_deg * DEG_TO_RAD) * noise_span,
				sin(phi_deg * DEG_TO_RAD) * noise_span,
				cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * noise_span,
				ofGetFrameNum() * 0.02);

			if ((int)(theta_deg - theta_deg_step) % 15 < 2 || (int)phi_deg % 15 < 2) { noise_value_1 = 0.5; }
			if ((int)theta_deg % 15 < 2 || (int)(phi_deg + phi_deg_step) % 15 < 2) { noise_value_2 = 0.5; }
			if ((int)theta_deg % 15 < 2 || (int)(phi_deg - phi_deg_step) % 15 < 2) { noise_value_3 = 0.5; }
			if ((int)(theta_deg + theta_deg_step) % 15 < 2 || (int)phi_deg % 15 < 2) { noise_value_4 = 0.5; }

			auto index = this->face.getNumVertices();
			vector<glm::vec3> vertices;

			vertices.push_back(glm::vec3(
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

			this->face.addVertices(vertices);

			this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3);
			this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 2);

			if (noise_value_1 < noise_threshold_1 || noise_value_1 > noise_threshold_2) {

				this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]);
				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				this->line.addColor(line_color); this->line.addColor(line_color);
			}

			if (noise_value_2 < noise_threshold_1 || noise_value_2 > noise_threshold_2) {

				this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]);
				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				this->line.addColor(line_color); this->line.addColor(line_color);
			}

			if (noise_value_3 < noise_threshold_1 || noise_value_3 > noise_threshold_2) {

				this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]);
				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				this->line.addColor(line_color); this->line.addColor(line_color);
			}

			if (noise_value_4 < noise_threshold_1 || noise_value_4 > noise_threshold_2) {

				this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);
				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				this->line.addColor(line_color); this->line.addColor(line_color);
			}

			for (int i = 0; i < vertices.size(); i++) {

				this->face.addColor(face_color);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum() * 0.72);

	this->face.draw();
	this->line.draw();

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 2;
	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);

ofSetLineWidth(2);

ofEnableDepthTest();

this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

float phi_deg_step = 0.1;

float theta_deg_step = 0.1;

float noise_threshold_1 = 0.45;

float noise_threshold_2 = 0.55;

float noise_span = 8;

float radius = 280;

ofColor face_color(0);

ofColor line_color(255);

for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

for (float theta_deg = 61; theta_deg <= 121; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(

cos(phi_deg * DEG_TO_RAD) * noise_span,

sin(phi_deg * DEG_TO_RAD) * noise_span,

cos(theta_deg * DEG_TO_RAD) * noise_span,

ofGetFrameNum() * 0.02);

if ((int)theta_deg % 15 < 2 || (int)phi_deg % 15 < 2) { noise_value = 0.5; }

if (noise_value < noise_threshold_1 || noise_value > noise_threshold_2) { continue; }

auto noise_value_1 = ofNoise(

cos(phi_deg * DEG_TO_RAD) * noise_span,

sin(phi_deg * DEG_TO_RAD) * noise_span,

cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * noise_span,

ofGetFrameNum() * 0.02);

auto noise_value_2 = ofNoise(

cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * noise_span,

sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * noise_span,

cos(theta_deg * DEG_TO_RAD) * noise_span,

ofGetFrameNum() * 0.02);

auto noise_value_3 = ofNoise(

cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * noise_span,

sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * noise_span,

cos(theta_deg * DEG_TO_RAD) * noise_span,

ofGetFrameNum() * 0.02);

auto noise_value_4 = ofNoise(

cos(phi_deg * DEG_TO_RAD) * noise_span,

sin(phi_deg * DEG_TO_RAD) * noise_span,

cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * noise_span,

ofGetFrameNum() * 0.02);

if ((int)(theta_deg - theta_deg_step) % 15 < 2 || (int)phi_deg % 15 < 2) { noise_value_1 = 0.5; }

if ((int)theta_deg % 15 < 2 || (int)(phi_deg + phi_deg_step) % 15 < 2) { noise_value_2 = 0.5; }

if ((int)theta_deg % 15 < 2 || (int)(phi_deg - phi_deg_step) % 15 < 2) { noise_value_3 = 0.5; }

if ((int)(theta_deg + theta_deg_step) % 15 < 2 || (int)phi_deg % 15 < 2) { noise_value_4 = 0.5; }

auto index = this->face.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

this->face.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3);

this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 2);

if (noise_value_1 < noise_threshold_1 || noise_value_1 > noise_threshold_2) {

this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);

this->line.addColor(line_color); this->line.addColor(line_color);

}

if (noise_value_2 < noise_threshold_1 || noise_value_2 > noise_threshold_2) {

this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);

this->line.addColor(line_color); this->line.addColor(line_color);

}

if (noise_value_3 < noise_threshold_1 || noise_value_3 > noise_threshold_2) {

this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);

this->line.addColor(line_color); this->line.addColor(line_color);

}

if (noise_value_4 < noise_threshold_1 || noise_value_4 > noise_threshold_2) {

this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);

this->line.addColor(line_color); this->line.addColor(line_color);

}

for (int i = 0; i < vertices.size(); i++) {

this->face.addColor(face_color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum() * 0.72);

this->face.draw();

this->line.draw();

this->cam.end();

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

int start = 2;

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/dfd3a41377be92a6d7d57e8269e76d5a46cce0f7

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