2023年2月 – ページ 5 – プログラミング de 落描き

2023年2月16日

Gradation box. Draw by openFrameworks

[ Video ]

[ About ]
グラデーション箱。

[ 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;

	vector<glm::vec3> base_location_list;
	vector<ofColor> base_color_list;

	vector<vector<glm::vec3>> 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) {};

ofEasyCam cam;

vector<glm::vec3> base_location_list;

vector<ofColor> base_color_list;

vector<vector<glm::vec3>> log_list;

vector<ofColor> color_list;

vector<float> life_list;

};

#include "ofApp.h"	

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofNoFill();
	ofEnableDepthTest();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	for (int x = -200; x <= 200; x += 1) {

		this->base_location_list.push_back(glm::vec3(x, -200, -200));
		this->base_location_list.push_back(glm::vec3(x, -200, 200));
		this->base_location_list.push_back(glm::vec3(x, 200, -200));
		this->base_location_list.push_back(glm::vec3(x, 200, 200));
	}

	for (int y = -200; y <= 200; y += 1) {

		this->base_location_list.push_back(glm::vec3(-200, y, -200));
		this->base_location_list.push_back(glm::vec3(-200, y, 200));
		this->base_location_list.push_back(glm::vec3(200, y, -200));
		this->base_location_list.push_back(glm::vec3(200, y, 200));
	}

	for (int z = -200; z <= 200; z += 1) {

		this->base_location_list.push_back(glm::vec3(-200, -200, z));
		this->base_location_list.push_back(glm::vec3(-200, 200, z));
		this->base_location_list.push_back(glm::vec3(200, -200, z));
		this->base_location_list.push_back(glm::vec3(200, 200, z));
	}
}

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

	int radius = 5;
	ofColor color;
	while (this->log_list.size() < 5500) {

		int font_location_index = ofRandom(this->base_location_list.size());
		vector<glm::vec3> log;
		log.push_back(this->base_location_list[font_location_index]);
		this->log_list.push_back(log);
		if (this->base_location_list[font_location_index].x == 200 || this->base_location_list[font_location_index].x == -200) {
		
			if (this->base_location_list[font_location_index].y == 200 || this->base_location_list[font_location_index].y == -200) {

				color.setHsb(ofMap(this->base_location_list[font_location_index].z, -200, 200, 0, 255), ofRandom(100, 255), ofRandom(100, 255));
			}
			else {

				color.setHsb(ofMap(this->base_location_list[font_location_index].y, -200, 200, 0, 255), ofRandom(100, 255), ofRandom(100, 255));
			}
		}
		else if (this->base_location_list[font_location_index].y == 200 || this->base_location_list[font_location_index].y == -200) {

			color.setHsb(ofMap(this->base_location_list[font_location_index].x, -200, 200, 0, 255), ofRandom(100, 255), ofRandom(100, 255));
		}

		this->color_list.push_back(color);
		this->life_list.push_back(ofRandom(10, 60));
	}

	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;
		}

		auto deg = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.005, ofGetFrameNum() * 0.003)), 0, 1, -360, 360);
		auto theta = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.005, (ofGetFrameNum() + 10000) * 0.003)), 0, 1, -360, 360);
		this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(radius * cos(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD), radius * cos(theta * DEG_TO_RAD)));
		while (this->log_list[i].size() > 150) {

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

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum() * 0.666666666666);

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

		ofSetColor(this->color_list[i]);

		if (this->life_list[i] > 30) {

			ofSetLineWidth(1.5);
		}
		else {

			ofSetLineWidth(ofMap(this->life_list[i], 0, 30, 0, 1.5));
		}

		ofSetColor(this->color_list[i]);

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

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofNoFill();

ofEnableDepthTest();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

for (int x = -200; x <= 200; x += 1) {

this->base_location_list.push_back(glm::vec3(x, -200, -200));

this->base_location_list.push_back(glm::vec3(x, -200, 200));

this->base_location_list.push_back(glm::vec3(x, 200, -200));

this->base_location_list.push_back(glm::vec3(x, 200, 200));

}

for (int y = -200; y <= 200; y += 1) {

this->base_location_list.push_back(glm::vec3(-200, y, -200));

this->base_location_list.push_back(glm::vec3(-200, y, 200));

this->base_location_list.push_back(glm::vec3(200, y, -200));

this->base_location_list.push_back(glm::vec3(200, y, 200));

}

for (int z = -200; z <= 200; z += 1) {

this->base_location_list.push_back(glm::vec3(-200, -200, z));

this->base_location_list.push_back(glm::vec3(-200, 200, z));

this->base_location_list.push_back(glm::vec3(200, -200, z));

this->base_location_list.push_back(glm::vec3(200, 200, z));

}

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

void ofApp::update() {

int radius = 5;

ofColor color;

while (this->log_list.size() < 5500) {

int font_location_index = ofRandom(this->base_location_list.size());

vector<glm::vec3> log;

log.push_back(this->base_location_list[font_location_index]);

this->log_list.push_back(log);

if (this->base_location_list[font_location_index].x == 200 || this->base_location_list[font_location_index].x == -200) {

if (this->base_location_list[font_location_index].y == 200 || this->base_location_list[font_location_index].y == -200) {

color.setHsb(ofMap(this->base_location_list[font_location_index].z, -200, 200, 0, 255), ofRandom(100, 255), ofRandom(100, 255));

}

else {

color.setHsb(ofMap(this->base_location_list[font_location_index].y, -200, 200, 0, 255), ofRandom(100, 255), ofRandom(100, 255));

}

else if (this->base_location_list[font_location_index].y == 200 || this->base_location_list[font_location_index].y == -200) {

color.setHsb(ofMap(this->base_location_list[font_location_index].x, -200, 200, 0, 255), ofRandom(100, 255), ofRandom(100, 255));

}

this->color_list.push_back(color);

this->life_list.push_back(ofRandom(10, 60));

}

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;

}

auto deg = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.005, ofGetFrameNum() * 0.003)), 0, 1, -360, 360);

auto theta = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.005, (ofGetFrameNum() + 10000) * 0.003)), 0, 1, -360, 360);

this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(radius * cos(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD), radius * cos(theta * DEG_TO_RAD)));

while (this->log_list[i].size() > 150) {

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum() * 0.666666666666);

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

ofSetColor(this->color_list[i]);

if (this->life_list[i] > 30) {

ofSetLineWidth(1.5);

}

else {

ofSetLineWidth(ofMap(this->life_list[i], 0, 30, 0, 1.5));

}

ofSetColor(this->color_list[i]);

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230216

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2023年2月15日

Mix of circle and square. Draw by openFrameworks

[ Video ]

[ About ]
正方形と円の合成。

[ 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) {};

	glm::vec2 make_point(int len, int param);
};

#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) {};

glm::vec2 make_point(int len, int param);

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetCircleResolution(60);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int len = 300;
	int radius = len * 0.35;

	for (int x = -170; x <= 170; x += 340) {

		for (int y = -170; y <= 170; y += 340) {

			ofSetColor(64);
			ofNoFill();
			ofDrawCircle(glm::vec2(x, y), radius);
			ofDrawRectangle(glm::vec2(x, y), len, len);

			vector<glm::vec2> vertices;
			for (float param = 0; param < 100; param++) {

				auto noise_value = ofNoise(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param) * 0.02, ofGetFrameNum() * 0.015));
				if (noise_value < 0.5) {

					vertices.push_back(this->make_point(len, param));
				}
				else if (noise_value > 0.6) {

					vertices.push_back(glm::normalize(this->make_point(len, param)) * radius);
				}
				else {

					vertices.push_back(glm::normalize(this->make_point(len, param)) * radius + (this->make_point(len, param) - glm::normalize(this->make_point(len, param)) * radius) * ofMap(noise_value, 0.5, 0.6, 1, 0));
				}
			}

			ofSetColor(255);

			ofFill();
			for (auto& vertex : vertices) {

				vertex += glm::vec2(x, y);
				ofDrawCircle(vertex, 2);
			}

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

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetCircleResolution(60);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int len = 300;

int radius = len * 0.35;

for (int x = -170; x <= 170; x += 340) {

for (int y = -170; y <= 170; y += 340) {

ofSetColor(64);

ofNoFill();

ofDrawCircle(glm::vec2(x, y), radius);

ofDrawRectangle(glm::vec2(x, y), len, len);

vector<glm::vec2> vertices;

for (float param = 0; param < 100; param++) {

auto noise_value = ofNoise(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param) * 0.02, ofGetFrameNum() * 0.015));

if (noise_value < 0.5) {

vertices.push_back(this->make_point(len, param));

}

else if (noise_value > 0.6) {

vertices.push_back(glm::normalize(this->make_point(len, param)) * radius);

}

else {

vertices.push_back(glm::normalize(this->make_point(len, param)) * radius + (this->make_point(len, param) - glm::normalize(this->make_point(len, param)) * radius) * ofMap(noise_value, 0.5, 0.6, 1, 0));

}

ofSetColor(255);

ofFill();

for (auto& vertex : vertices) {

vertex += glm::vec2(x, y);

ofDrawCircle(vertex, 2);

}

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230215

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2023年2月14日

Happy Valentine’s Day 2023. Draw by openFrameworks

[ Video ]

[ About ]
Happy Valentine’s Day 2023.

[ 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) {};

	glm::vec2 make_point(float theta);

	float random_seed;
};

#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) {};

glm::vec2 make_point(float theta);

float random_seed;

};

#include "ofApp.h"	

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetLineWidth(2);
}

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

	if (ofGetFrameNum() % 45 < 5) {

		this->random_seed = ofRandom(1000);
	}

	ofSeedRandom(this->random_seed);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto number_of_sphere = 150;
	vector<glm::vec2> location_list;
	vector<float> radius_list;

	while (location_list.size() < number_of_sphere) {

		auto location = glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300));
		auto radius = ofRandom(8, 70);
		bool flag = true;
		for (int i = 0; i < location_list.size(); i++) {

			if (glm::distance(location, location_list[i]) < (radius + radius_list[i])) {

				flag = false;
				break;
			}
		}

		if (flag) {

			location_list.push_back(location);
			radius_list.push_back(radius);
		}
	}

	int count = 0;
	while (true) {

		auto all = true;

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

			auto flag = true;
			for (int k = 0; k < location_list.size(); k++) {

				if (i == k) { continue; }

				if (glm::distance(location_list[i], location_list[k]) < (radius_list[i] + radius_list[k])) {

					flag = false;
				}
			}

			if (flag) {

				radius_list[i] += 1;
				all = false;
				break;
			}
		}

		if (all) {

			break;
		}

		count++;
	}

	ofColor color;
	auto param = ofGetFrameNum() % 45 < 5 ? 0.2 : ofGetFrameNum() % 45 < 15 ? ofMap(ofGetFrameNum() % 45, 5, 15, 0.2, 1) : 1;
	for (int i = 0; i < location_list.size(); i++) {

		ofPushMatrix();
		ofTranslate(location_list[i]);
		ofRotate(ofRandom(360));

		color.setHsb(ofRandom(0, 10), ofRandom(0, 255), 255);
		
		vector<glm::vec2> vertices;
		for (int deg = 0; deg < 360; deg += 1) {

			vertices.push_back(this->make_point(deg * DEG_TO_RAD) * 1.1);
		}

		for (auto& vertex : vertices) {

			vertex = vertex / 20 * radius_list[i];
		}

		ofFill();
		ofSetColor(color, 170);

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

		ofNoFill();
		ofSetColor(color);

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

		ofPopMatrix();
	}
}

//--------------------------------------------------------------
//Reference by https://twitter.com/shiffman/status/1095764239665512453
glm::vec2 ofApp::make_point(float theta) {

	float x = 16 * (pow(sin(theta), 3));
	float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);
	return glm::vec2(x, -y);
}


//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(2);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 45 < 5) {

this->random_seed = ofRandom(1000);

}

ofSeedRandom(this->random_seed);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto number_of_sphere = 150;

vector<glm::vec2> location_list;

vector<float> radius_list;

while (location_list.size() < number_of_sphere) {

auto location = glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300));

auto radius = ofRandom(8, 70);

bool flag = true;

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

if (glm::distance(location, location_list[i]) < (radius + radius_list[i])) {

flag = false;

break;

}

if (flag) {

location_list.push_back(location);

radius_list.push_back(radius);

}

int count = 0;

while (true) {

auto all = true;

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

auto flag = true;

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

if (glm::distance(location_list[i], location_list[k]) < (radius_list[i] + radius_list[k])) {

flag = false;

}

if (flag) {

radius_list[i] += 1;

all = false;

break;

}

if (all) {

break;

}

count++;

}

ofColor color;

auto param = ofGetFrameNum() % 45 < 5 ? 0.2 : ofGetFrameNum() % 45 < 15 ? ofMap(ofGetFrameNum() % 45, 5, 15, 0.2, 1) : 1;

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

ofPushMatrix();

ofTranslate(location_list[i]);

ofRotate(ofRandom(360));

color.setHsb(ofRandom(0, 10), ofRandom(0, 255), 255);

vector<glm::vec2> vertices;

for (int deg = 0; deg < 360; deg += 1) {

vertices.push_back(this->make_point(deg * DEG_TO_RAD) * 1.1);

}

for (auto& vertex : vertices) {

vertex = vertex / 20 * radius_list[i];

}

ofFill();

ofSetColor(color, 170);

ofBeginShape();

ofVertices(vertices);

ofEndShape();

ofNoFill();

ofSetColor(color);

ofBeginShape();

ofVertices(vertices);

ofEndShape();

ofPopMatrix();

}

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

//Reference by https://twitter.com/shiffman/status/1095764239665512453

glm::vec2 ofApp::make_point(float theta) {

float x = 16 * (pow(sin(theta), 3));

float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);

return glm::vec2(x, -y);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230214

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