プログラミング de 落描き – ページ 289 – クリエイティブ・コーディングによる生成物とソース

2023年2月20日

Heart torus. Draw by openFrameworks

[ Video ]

[ About ]
ハート・トーラス。

[ 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::vec3 make_point(float R, float r, float u, float v);
	glm::vec2 make_point(float theta);

	ofEasyCam cam;

	vector<glm::vec3> base_location_list;

	vector<tuple<ofColor, glm::vec3, float>> sphere_list; // BodyColor, Location, size
	int number_of_sphere;

	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::vec3 make_point(float R, float r, float u, float v);

glm::vec2 make_point(float theta);

ofEasyCam cam;

vector<glm::vec3> base_location_list;

vector<tuple<ofColor, glm::vec3, float>> sphere_list; // BodyColor, Location, size

int number_of_sphere;

float random_seed;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(1, 5);

	this->number_of_sphere = 350;
	while (this->sphere_list.size() < this->number_of_sphere) {

		auto tmp_location = this->make_point(300, ofRandom(0, 60), ofRandom(360), ofRandom(360));
		auto radius = this->sphere_list.size() < 110 ? ofRandom(20, 60) : ofRandom(2, 20);

		bool flag = true;
		for (int i = 0; i < this->sphere_list.size(); i++) {

			if (glm::distance(tmp_location, get<1>(this->sphere_list[i])) < get<2>(this->sphere_list[i]) + radius) {

				flag = false;
				break;
			}
		}

		if (flag) {

			ofColor color;
			color.setHsb(ofRandom(255), 200, 255);

			auto size = (radius * 2) / sqrt(3);

			this->sphere_list.push_back(make_tuple(color, tmp_location, size));
		}
	}

	this->random_seed = 39;
}

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

	if (ofGetFrameNum() % 60 == 0) {

		this->random_seed = ofRandom(1000);
	}

	ofSeedRandom(this->random_seed);
}

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

	this->cam.begin();
	ofRotateZ(ofGetFrameNum() * 0.66666666666666666);



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

		auto location = get<1>(this->sphere_list[i]);
		auto size = get<2>(this->sphere_list[i]);

		ofPushMatrix();
		ofTranslate(location);

		ofRotateZ(ofRandom(360));
		ofRotateY(ofRandom(360));
		ofRotateX(ofRandom(360));

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

		auto param = ofGetFrameNum() % 60;
		float scale = 1;
		if (param < 30) {

			scale = ofMap(param, 0, 30, 0, size);
		}
		else {

			scale = ofMap(param, 30, 60, size, 0);
		}

		vector<glm::vec2> vertices;
		for (int deg = 0; deg < 360; deg += 1) {

			vertices.push_back(this->make_point(deg * DEG_TO_RAD) / 20 * scale);
		}


		ofFill();
		ofSetColor(color, 128);

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

		ofNoFill();
		ofSetColor(color);

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

		ofPopMatrix();
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

//--------------------------------------------------------------
//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(3);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(1, 5);

this->number_of_sphere = 350;

while (this->sphere_list.size() < this->number_of_sphere) {

auto tmp_location = this->make_point(300, ofRandom(0, 60), ofRandom(360), ofRandom(360));

auto radius = this->sphere_list.size() < 110 ? ofRandom(20, 60) : ofRandom(2, 20);

bool flag = true;

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

if (glm::distance(tmp_location, get<1>(this->sphere_list[i])) < get<2>(this->sphere_list[i]) + radius) {

flag = false;

break;

}

if (flag) {

ofColor color;

color.setHsb(ofRandom(255), 200, 255);

auto size = (radius * 2) / sqrt(3);

this->sphere_list.push_back(make_tuple(color, tmp_location, size));

}

this->random_seed = 39;

}

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

void ofApp::update() {

if (ofGetFrameNum() % 60 == 0) {

this->random_seed = ofRandom(1000);

}

ofSeedRandom(this->random_seed);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(ofGetFrameNum() * 0.66666666666666666);

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

auto location = get<1>(this->sphere_list[i]);

auto size = get<2>(this->sphere_list[i]);

ofPushMatrix();

ofTranslate(location);

ofRotateZ(ofRandom(360));

ofRotateY(ofRandom(360));

ofRotateX(ofRandom(360));

ofColor color;

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

auto param = ofGetFrameNum() % 60;

float scale = 1;

if (param < 30) {

scale = ofMap(param, 0, 30, 0, size);

}

else {

scale = ofMap(param, 30, 60, size, 0);

}

vector<glm::vec2> vertices;

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

vertices.push_back(this->make_point(deg * DEG_TO_RAD) / 20 * scale);

}

ofFill();

ofSetColor(color, 128);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(color);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

//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/Insta20230220

2023年2月19日2023年2月20日

Heart wave. Draw by openFrameworks

[ Video ]

[ About ]
ハート波。

[ 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(float theta);

	vector<glm::vec2> location_list;
	vector<float> size_list;
	vector<float> speed_list;
	vector<float> max_size_list;
	vector<float> deg_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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

glm::vec2 make_point(float theta);

vector<glm::vec2> location_list;

vector<float> size_list;

vector<float> speed_list;

vector<float> max_size_list;

vector<float> deg_list;

vector<ofColor> color_list;

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

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

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

		if (this->size_list[i] > this->max_size_list[i]) {

			this->location_list.erase(this->location_list.begin() + i);
			this->size_list.erase(this->size_list.begin() + i);
			this->speed_list.erase(this->speed_list.begin() + i);
			this->max_size_list.erase(this->max_size_list.begin() + i);
			this->deg_list.erase(this->deg_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

	ofColor color;
	for (int i = 0; i < 10; i++) {

		auto random_x = ofRandom(ofGetWindowWidth() * -0.5, ofGetWindowWidth() * 0.5);
		auto y = ofMap(ofNoise(random_x * 0.0025 + ofGetFrameNum() * 0.015), 0, 1, ofGetWindowHeight() * -0.5, ofGetWindowHeight() * 0.5);

		auto location = glm::vec2(random_x, y + ofRandom(-30, 30));
		this->location_list.push_back(location);
		this->size_list.push_back(1);
		this->speed_list.push_back(ofRandom(1, 4));
		this->max_size_list.push_back(ofRandom(20, 40));
		this->deg_list.push_back(ofRandom(360));
		color.setHsb(ofRandom(255), 200, 255);
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	ofNoFill();

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

		ofPushMatrix();
		ofTranslate(this->location_list[i]);
		ofRotate(this->deg_list[i]);

		vector<glm::vec2> vertices;

		for (int deg = 0; deg < 360; deg += 2) {

			vertices.push_back(this->make_point(deg * DEG_TO_RAD) / 30 * this->size_list[i]);
		}

		auto alpha = this->size_list[i] > this->max_size_list[i] * 0.6 ? ofMap(this->size_list[i], this->max_size_list[i] * 0.6, this->max_size_list[i], 255, 0) : 255;

		ofFill();
		ofSetColor(this->color_list[i], alpha);

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

		ofNoFill();
		ofSetColor(this->color_list[i]);

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

		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);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

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

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

if (this->size_list[i] > this->max_size_list[i]) {

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

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

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

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

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

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

}

ofColor color;

for (int i = 0; i < 10; i++) {

auto random_x = ofRandom(ofGetWindowWidth() * -0.5, ofGetWindowWidth() * 0.5);

auto y = ofMap(ofNoise(random_x * 0.0025 + ofGetFrameNum() * 0.015), 0, 1, ofGetWindowHeight() * -0.5, ofGetWindowHeight() * 0.5);

auto location = glm::vec2(random_x, y + ofRandom(-30, 30));

this->location_list.push_back(location);

this->size_list.push_back(1);

this->speed_list.push_back(ofRandom(1, 4));

this->max_size_list.push_back(ofRandom(20, 40));

this->deg_list.push_back(ofRandom(360));

color.setHsb(ofRandom(255), 200, 255);

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofNoFill();

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

ofPushMatrix();

ofTranslate(this->location_list[i]);

ofRotate(this->deg_list[i]);

vector<glm::vec2> vertices;

for (int deg = 0; deg < 360; deg += 2) {

vertices.push_back(this->make_point(deg * DEG_TO_RAD) / 30 * this->size_list[i]);

}

auto alpha = this->size_list[i] > this->max_size_list[i] * 0.6 ? ofMap(this->size_list[i], this->max_size_list[i] * 0.6, this->max_size_list[i], 255, 0) : 255;

ofFill();

ofSetColor(this->color_list[i], alpha);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(this->color_list[i]);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

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/Insta20230219

2023年2月18日

Floors. Draw by openFrameworks

[ Video ]

[ About ]
光る床。

[ 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);
	ofEnableDepthTest();
	ofSetLineWidth(0.5);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	int len = 200;

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

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

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

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

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

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

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

	int radius = 8;
	ofColor color;
	while (this->log_list.size() < 5000) {

		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(0, 255), ofRandom(0, 255));
			}
			else {

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

	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() * 0.0005, ofGetFrameNum() * 0.0002)), 0, 1, -360, 360);
		auto theta = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0005, (ofGetFrameNum() + 10000) * 0.0002)), 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)));

		if (this->log_list[i].back().x > 200) {

			this->log_list[i].back().x = 200;
		}
		else if (this->log_list[i].back().x < -200) {

			this->log_list[i].back().x = -200;
		}

		if (this->log_list[i].back().y > 200) {

			this->log_list[i].back().y = 200;
		}
		else if (this->log_list[i].back().y < -200) {

			this->log_list[i].back().y = -200;
		}

		if (this->log_list[i].back().z > 200) {

			this->log_list[i].back().z = 200;
		}
		else if (this->log_list[i].back().z < -200) {

			this->log_list[i].back().z = -200;
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum() * 0.33333333);

	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]);

		auto vertices = this->log_list[i];
		for (auto& vertex : vertices) {

			if (glm::length(vertex) < 200) {

				vertex = glm::normalize(vertex) * 200;
			}
		}

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

ofEnableDepthTest();

ofSetLineWidth(0.5);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

int len = 200;

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

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

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

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

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

}

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

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

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

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

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

}

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

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

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

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

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

}

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

void ofApp::update() {

int radius = 8;

ofColor color;

while (this->log_list.size() < 5000) {

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(0, 255), ofRandom(0, 255));

}

else {

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

}

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() * 0.0005, ofGetFrameNum() * 0.0002)), 0, 1, -360, 360);

auto theta = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0005, (ofGetFrameNum() + 10000) * 0.0002)), 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)));

if (this->log_list[i].back().x > 200) {

this->log_list[i].back().x = 200;

}

else if (this->log_list[i].back().x < -200) {

this->log_list[i].back().x = -200;

}

if (this->log_list[i].back().y > 200) {

this->log_list[i].back().y = 200;

}

else if (this->log_list[i].back().y < -200) {

this->log_list[i].back().y = -200;

}

if (this->log_list[i].back().z > 200) {

this->log_list[i].back().z = 200;

}

else if (this->log_list[i].back().z < -200) {

this->log_list[i].back().z = -200;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum() * 0.33333333);

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]);

auto vertices = this->log_list[i];

for (auto& vertex : vertices) {

if (glm::length(vertex) < 200) {

vertex = glm::normalize(vertex) * 200;

}

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230218

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