noise – ページ 132 – プログラミング de 落描き

2022年1月3日

Noise line with Characters. Draw by openFrameworks

[ Video ]

[ About ]
ノイズ関数でyを計算して＋と-の両方を使う。

Calculate y with the noise function and use both + and -.

[ 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) {};

	int font_size;
	ofTrueTypeFont font;
	vector<string> words;

	vector<glm::vec2> location_list;
	vector<bool> param_list;
	vector<float> index_list;

	ofEasyCam cam;

};

#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) {};

int font_size;

ofTrueTypeFont font;

vector<string> words;

vector<glm::vec2> location_list;

vector<bool> param_list;

vector<float> index_list;

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(0);

	this->font_size = 20;
	ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);
	this->font.load(font_settings);

	this->words = {

		"H", "A", "P", "P", "Y", 
		"N", "E", "W",
		"Y", "E", "A", "R"
	};

	for (int x = this->font_size * -15; x <= this->font_size * 15; x += this->font_size * 0.8) {

		for (int y = this->font_size * -15; y <= this->font_size * 15; y += this->font_size * 1.2) {

			this->location_list.push_back(glm::vec2(x - this->font_size * 0.2, y - this->font_size * 0.5));
			this->index_list.push_back(0.f);
			this->param_list.push_back(true);
		}
	}


}

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

	ofSeedRandom(39);

	for (auto& param : this->param_list) {

		param = false;
	}

	for (int k = 0; k < 2; k++) {

		auto noise_seed = ofRandom(1000);
		for (int x = -720; x <=720; x += 3) {

			auto y = ofMap(ofNoise(noise_seed, x * 0.0005 + ofGetFrameNum() * 0.01), 0, 1, -350, 350);
			for (int i = 0; i < this->location_list.size(); i++) {

				auto distance = glm::distance(glm::vec2(x, y), this->location_list[i]);
				if (distance < this->font_size * 0.8) {

					this->index_list[i] += 1;

					this->index_list[i] = (int)this->index_list[i] % this->words.size();
					this->param_list[i] = true;
				}

				distance = glm::distance(glm::vec2(x, -y), this->location_list[i]);
				if (distance < this->font_size * 0.8) {

					this->index_list[i] += 1;
					
					this->index_list[i] = (int)this->index_list[i] % this->words.size();
					this->param_list[i] = true;
				}
			}
		}
	}
}

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

	this->cam.begin();

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

		ofColor location_color;
		location_color.setHsb(ofRandom(255), 150, 255);

		if (this->param_list[i]) {

			ofSetColor(location_color);
		}
		else {

			ofSetColor(96);
		}

		this->font.drawString(this->words[this->index_list[i]], this->location_list[i].x, this->location_list[i].y);
	}

	this->cam.end();
}

//--------------------------------------------------------------
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);

this->font_size = 20;

ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);

this->font.load(font_settings);

this->words = {

"H", "A", "P", "P", "Y",

"N", "E", "W",

"Y", "E", "A", "R"

};

for (int x = this->font_size * -15; x <= this->font_size * 15; x += this->font_size * 0.8) {

for (int y = this->font_size * -15; y <= this->font_size * 15; y += this->font_size * 1.2) {

this->location_list.push_back(glm::vec2(x - this->font_size * 0.2, y - this->font_size * 0.5));

this->index_list.push_back(0.f);

this->param_list.push_back(true);

}

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

void ofApp::update() {

ofSeedRandom(39);

for (auto& param : this->param_list) {

param = false;

}

for (int k = 0; k < 2; k++) {

auto noise_seed = ofRandom(1000);

for (int x = -720; x <=720; x += 3) {

auto y = ofMap(ofNoise(noise_seed, x * 0.0005 + ofGetFrameNum() * 0.01), 0, 1, -350, 350);

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

auto distance = glm::distance(glm::vec2(x, y), this->location_list[i]);

if (distance < this->font_size * 0.8) {

this->index_list[i] += 1;

this->index_list[i] = (int)this->index_list[i] % this->words.size();

this->param_list[i] = true;

}

distance = glm::distance(glm::vec2(x, -y), this->location_list[i]);

if (distance < this->font_size * 0.8) {

this->index_list[i] += 1;

this->index_list[i] = (int)this->index_list[i] % this->words.size();

this->param_list[i] = true;

}

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

void ofApp::draw() {

this->cam.begin();

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

ofColor location_color;

location_color.setHsb(ofRandom(255), 150, 255);

if (this->param_list[i]) {

ofSetColor(location_color);

}

else {

ofSetColor(96);

}

this->font.drawString(this->words[this->index_list[i]], this->location_list[i].x, this->location_list[i].y);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220103

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2022年1月1日

HAPPY NEW YEAR 2022 ! Draw by openFrameworks

[ Video ]

[ About ]
2022年もよろしくお願いします。

I look forward to working with you again this year.

[ 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;

	float font_size;
	ofTrueTypeFont font;
};

#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;

float font_size;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	this->font_size = 80;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(180);

	string word = "HAPPY NEW YEAR 2022!";
	int sample_count = 180;
	auto noise_param = ofRandom(1000);
	bool flag = true;

	for (int y = -350; y <= 350; y += 350) {

		ofPushMatrix();
		ofTranslate(0, y, 0);
		if (flag = !flag) {
			
			ofRotateY(ofGetFrameNum() * 2);
		}
		else {

			ofRotateY(360 - (ofGetFrameNum() * 2) % 360);
		}

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

			ofPath chara_path = this->font.getCharacterAsPoints(word[i], true, false);
			vector<ofPolyline> outline = chara_path.getOutline();

			ofFill();
			ofSetColor(0);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				if (outline_index != 0) { ofNextContour(true); }

				auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();
				for (auto& vertex : vertices) {

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);
					auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation_y;

					auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);
					float param = noise_value;
					location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

					if (location.y > 0) {

						ofVertex(location - glm::vec3(0, 100, 0));
					}
				}
			}
			ofEndShape();

			ofNoFill();
			ofSetColor(255, 0, 0);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				if (outline_index != 0) { ofNextContour(true); }

				auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();
				for (auto& vertex : vertices) {

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);
					auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation_y;

					auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);
					float param = noise_value;
					location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

					if (location.y > 0) {

						ofVertex(location - glm::vec3(0, 100, 0));
					}
				}
			}
			ofEndShape();
		}

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

			ofPath chara_path = this->font.getCharacterAsPoints(word[i], true, false);
			vector<ofPolyline> outline = chara_path.getOutline();

			ofFill();
			ofSetColor(0);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				if (outline_index != 0) { ofNextContour(true); }

				auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();
				for (auto& vertex : vertices) {

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);
					auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation_y;

					auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);
					float param = noise_value;
					location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

					if (location.y < 0) {

						ofVertex(location + glm::vec3(0, 100, 0));
					}
				}
			}
			ofEndShape();

			ofNoFill();
			ofSetColor(255, 0, 0);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				if (outline_index != 0) { ofNextContour(true); }

				auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();
				for (auto& vertex : vertices) {

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);
					auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation_y;

					auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);
					float param = noise_value;
					location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

					if (location.y < 0) {

						ofVertex(location + glm::vec3(0, 100, 0));
					}
				}
			}
			ofEndShape();
		}

		ofPopMatrix();
	}

	this->cam.end();
}

//--------------------------------------------------------------
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(255);

ofSetLineWidth(2);

ofEnableDepthTest();

this->font_size = 80;

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

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

string word = "HAPPY NEW YEAR 2022!";

int sample_count = 180;

auto noise_param = ofRandom(1000);

bool flag = true;

for (int y = -350; y <= 350; y += 350) {

ofPushMatrix();

ofTranslate(0, y, 0);

if (flag = !flag) {

ofRotateY(ofGetFrameNum() * 2);

}

else {

ofRotateY(360 - (ofGetFrameNum() * 2) % 360);

}

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

ofPath chara_path = this->font.getCharacterAsPoints(word[i], true, false);

vector<ofPolyline> outline = chara_path.getOutline();

ofFill();

ofSetColor(0);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);

auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);

float param = noise_value;

location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

if (location.y > 0) {

ofVertex(location - glm::vec3(0, 100, 0));

}

ofEndShape();

ofNoFill();

ofSetColor(255, 0, 0);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);

auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);

float param = noise_value;

location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

if (location.y > 0) {

ofVertex(location - glm::vec3(0, 100, 0));

}

ofEndShape();

}

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

ofPath chara_path = this->font.getCharacterAsPoints(word[i], true, false);

vector<ofPolyline> outline = chara_path.getOutline();

ofFill();

ofSetColor(0);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);

auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);

float param = noise_value;

location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

if (location.y < 0) {

ofVertex(location + glm::vec3(0, 100, 0));

}

ofEndShape();

ofNoFill();

ofSetColor(255, 0, 0);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);

auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);

float param = noise_value;

location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

if (location.y < 0) {

ofVertex(location + glm::vec3(0, 100, 0));

}

ofEndShape();

}

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220101

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年12月30日

10 PRINT on Circle. Draw by openFrameworks

[ Video ]

[ About ]
昨日の投稿を平面化。

Planarization of yesterday’s post

[ 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 frame;
};

#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 frame;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetColor(0);
	ofSetLineWidth(2.5);

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

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

	ofSeedRandom(39);

	this->frame.clear();

	float phi_deg_step = 3;
	float theta_deg_step = 3;

	float radius = 300;

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

		for (float theta_deg = 20; theta_deg <= 90; theta_deg += theta_deg_step) {

			auto noise_value = ofNoise(phi_deg * 0.85, theta_deg * 0.05 - ofGetFrameNum() * 0.05);

			if (noise_value < 0.5) {

				this->frame.addVertex(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),
					0));
				this->frame.addVertex(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),
					0));
			}
			else {

				this->frame.addVertex(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),
					0));
				this->frame.addVertex(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),
					0));
			}

			this->frame.addIndex(this->frame.getNumVertices() - 1);
			this->frame.addIndex(this->frame.getNumVertices() - 2);
		}
	}

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

		float theta_deg = 20;

		this->frame.addVertex(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),
			0));
		this->frame.addVertex(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),
			0));
		this->frame.addIndex(this->frame.getNumVertices() - 1);
		this->frame.addIndex(this->frame.getNumVertices() - 2);
	}
}

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

	this->cam.begin();

	this->frame.draw();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetColor(0);

ofSetLineWidth(2.5);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->frame.clear();

float phi_deg_step = 3;

float theta_deg_step = 3;

float radius = 300;

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

for (float theta_deg = 20; theta_deg <= 90; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(phi_deg * 0.85, theta_deg * 0.05 - ofGetFrameNum() * 0.05);

if (noise_value < 0.5) {

this->frame.addVertex(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),

0));

this->frame.addVertex(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),

0));

}

else {

this->frame.addVertex(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),

0));

this->frame.addVertex(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),

0));

}

this->frame.addIndex(this->frame.getNumVertices() - 1);

this->frame.addIndex(this->frame.getNumVertices() - 2);

}

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

float theta_deg = 20;

this->frame.addVertex(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),

0));

this->frame.addVertex(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),

0));

this->frame.addIndex(this->frame.getNumVertices() - 1);

this->frame.addIndex(this->frame.getNumVertices() - 2);

}

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

void ofApp::draw() {

this->cam.begin();

this->frame.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211230

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