プログラミング de 落描き – ページ 223 – 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11月26日

Random walk bugs.

[ Video ]

[ About ]
ランダム・ウォーク・虫。

[ 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) {};

	vector<vector<glm::vec2>> log_list;
	vector<glm::vec3> seed_list;
	vector<glm::vec2> velocity_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) {};

vector<vector<glm::vec2>> log_list;

vector<glm::vec3> seed_list;

vector<glm::vec2> velocity_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofEnableDepthTest();
}

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

	int base_radius = (ofGetFrameNum() * 2) % 420 + 60;

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

		if (glm::length(this->log_list[i].back()) > 720) {

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

			continue;
		}

		auto feature = this->velocity_list[i] * 30;
		auto deg = ofMap(ofNoise(this->seed_list[i].z, ofGetFrameNum() * 0.005), 0, 1, 0, 360);
		feature += glm::vec2(30 * cos(deg * DEG_TO_RAD), 30 * sin(deg * DEG_TO_RAD));
		auto next = this->log_list[i].back() + glm::normalize(feature) * 12;
		
		this->log_list[i].push_back(next);

		while (this->log_list[i].size() > 3) {

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

	ofColor color;
	while(this->log_list.size() < 150) {

		int deg = ofRandom(360);
		float radius = 30;
		float next_radius = radius - 1;


		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto next = glm::vec2(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD));

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);

		this->seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));

		this->velocity_list.push_back(glm::normalize(location - next));

		color.setHsb(ofRandom(255), 180, 255);
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofNoFill();
	for (int i = 0; i < this->log_list.size(); i++) {
		
		ofSetColor(this->color_list[i]);

		ofFill();
		ofDrawSphere(glm::vec3(this->log_list[i].back(), 0) , 4);
		ofDrawSphere(glm::vec3(this->log_list[i].front(), 0), 4);
		ofPopMatrix();

		ofNoFill();
		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();
	}
	
	/*
	int start = 25 * 60;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(2);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofEnableDepthTest();

}

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

void ofApp::update() {

int base_radius = (ofGetFrameNum() * 2) % 420 + 60;

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

if (glm::length(this->log_list[i].back()) > 720) {

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

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

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

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

continue;

}

auto feature = this->velocity_list[i] * 30;

auto deg = ofMap(ofNoise(this->seed_list[i].z, ofGetFrameNum() * 0.005), 0, 1, 0, 360);

feature += glm::vec2(30 * cos(deg * DEG_TO_RAD), 30 * sin(deg * DEG_TO_RAD));

auto next = this->log_list[i].back() + glm::normalize(feature) * 12;

this->log_list[i].push_back(next);

while (this->log_list[i].size() > 3) {

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

}

ofColor color;

while(this->log_list.size() < 150) {

int deg = ofRandom(360);

float radius = 30;

float next_radius = radius - 1;

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

auto next = glm::vec2(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD));

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));

this->velocity_list.push_back(glm::normalize(location - next));

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

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofNoFill();

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

ofSetColor(this->color_list[i]);

ofFill();

ofDrawSphere(glm::vec3(this->log_list[i].back(), 0) , 4);

ofDrawSphere(glm::vec3(this->log_list[i].front(), 0), 4);

ofPopMatrix();

ofNoFill();

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

int start = 25 * 60;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231126

2023年11月25日

Sphere has rings.

[ Video ]

[ About ]
リング付き球体。

[ 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) {};

	vector<vector<glm::vec2>> log_list;
	vector<glm::vec3> seed_list;
	vector<glm::vec2> velocity_list;
	vector<ofColor> color_list;

	ofMesh mesh;
};

#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) {};

vector<vector<glm::vec2>> log_list;

vector<glm::vec3> seed_list;

vector<glm::vec2> velocity_list;

vector<ofColor> color_list;

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

	int base_radius = (ofGetFrameNum() * 2) % 420 + 60;

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

		if (glm::length(this->log_list[i].back()) > 720) {

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

			continue;
		}

		auto feature = this->velocity_list[i] * 120;
		auto deg = ofMap(ofNoise(this->seed_list[i].z, ofGetFrameNum() * 0.005), 0, 1, 0, 360);
		feature += glm::vec2(30 * cos(deg * DEG_TO_RAD), 30 * sin(deg * DEG_TO_RAD));
		auto next = this->log_list[i].back() + glm::normalize(feature) * 12;
		
		this->log_list[i].push_back(next);

		while (this->log_list[i].size() > 20) {

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

	ofColor color;
	for (int i = 0; i < 3; i++) {

		int deg = ofGetFrameNum() * 1.44 + (i % 3) * 120;
		int next_deg = deg + 1;
		float radius = ofRandom(45, 55);

		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);

		this->seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofMap(ofNoise(location * 0.01), 0, 1, 0, 1000)));

		this->velocity_list.push_back(glm::normalize(location - next));

		color.setHsb(ofRandom((i % 3) * 85, 85 + (i % 3) * 85), 200, 200);
		this->color_list.push_back(color);
	}

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

		this->mesh.addVertex(glm::vec3(this->log_list[i].back(), 0));
		this->mesh.addColor(this->color_list[i]);
	}

	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

		for (int k = i + 1; k < this->mesh.getNumVertices(); k++) {

			auto distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k));
			if (distance < 35) {

				this->mesh.addIndex(i);
				this->mesh.addIndex(k);
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofNoFill();
	for (int i = 0; i < this->log_list.size(); i++) {
		
		ofPushMatrix();
		ofTranslate(this->log_list[i].back());

		ofRotateY(ofMap(ofNoise(this->seed_list[i].y, ofGetFrameNum() * 0.025), 0, 1, 0, 360));
		ofRotateX(ofMap(ofNoise(this->seed_list[i].x, ofGetFrameNum() * 0.025), 0, 1, 0, 360));

		ofSetColor(this->color_list[i]);
		
		ofNoFill();
		ofDrawCircle(glm::vec3(), 16);

		ofFill();
		ofDrawSphere(glm::vec3() , 4);

		ofPopMatrix();
	}

	this->mesh.drawWireframe();
	
	/*
	int start = 150;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

int base_radius = (ofGetFrameNum() * 2) % 420 + 60;

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

if (glm::length(this->log_list[i].back()) > 720) {

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

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

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

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

continue;

}

auto feature = this->velocity_list[i] * 120;

auto deg = ofMap(ofNoise(this->seed_list[i].z, ofGetFrameNum() * 0.005), 0, 1, 0, 360);

feature += glm::vec2(30 * cos(deg * DEG_TO_RAD), 30 * sin(deg * DEG_TO_RAD));

auto next = this->log_list[i].back() + glm::normalize(feature) * 12;

this->log_list[i].push_back(next);

while (this->log_list[i].size() > 20) {

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

}

ofColor color;

for (int i = 0; i < 3; i++) {

int deg = ofGetFrameNum() * 1.44 + (i % 3) * 120;

int next_deg = deg + 1;

float radius = ofRandom(45, 55);

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofMap(ofNoise(location * 0.01), 0, 1, 0, 1000)));

this->velocity_list.push_back(glm::normalize(location - next));

color.setHsb(ofRandom((i % 3) * 85, 85 + (i % 3) * 85), 200, 200);

this->color_list.push_back(color);

}

this->mesh.clear();

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

this->mesh.addVertex(glm::vec3(this->log_list[i].back(), 0));

this->mesh.addColor(this->color_list[i]);

}

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

for (int k = i + 1; k < this->mesh.getNumVertices(); k++) {

auto distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k));

if (distance < 35) {

this->mesh.addIndex(i);

this->mesh.addIndex(k);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofNoFill();

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

ofPushMatrix();

ofTranslate(this->log_list[i].back());

ofRotateY(ofMap(ofNoise(this->seed_list[i].y, ofGetFrameNum() * 0.025), 0, 1, 0, 360));

ofRotateX(ofMap(ofNoise(this->seed_list[i].x, ofGetFrameNum() * 0.025), 0, 1, 0, 360));

ofSetColor(this->color_list[i]);

ofNoFill();

ofDrawCircle(glm::vec3(), 16);

ofFill();

ofDrawSphere(glm::vec3() , 4);

ofPopMatrix();

}

this->mesh.drawWireframe();

int start = 150;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231125

2023年11月24日

3 color rings.

[ Video ]

[ About ]
3色リング。

[ 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) {};

	vector<vector<glm::vec2>> log_list;
	vector<float> seed_list;
	vector<float> size_list;
	vector<glm::vec2> velocity_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) {};

vector<vector<glm::vec2>> log_list;

vector<float> seed_list;

vector<float> size_list;

vector<glm::vec2> velocity_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

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

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

	int base_radius = (ofGetFrameNum() * 2) % 420 + 60;

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

		if (glm::length(this->log_list[i].back()) > 720) {

			this->log_list.erase(this->log_list.begin() + i);
			this->seed_list.erase(this->seed_list.begin() + i);
			this->size_list.erase(this->size_list.begin() + i);
			this->velocity_list.erase(this->velocity_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);

			continue;
		}

		auto feature = this->velocity_list[i] * 100;
		auto deg = ofMap(ofNoise(this->seed_list[i], ofGetFrameNum() * 0.005), 0, 1, 0, 360);
		feature += glm::vec2(30 * cos(deg * DEG_TO_RAD), 30 * sin(deg * DEG_TO_RAD));
		auto next = this->log_list[i].back() + glm::normalize(feature) * 10;

		this->log_list[i].push_back(next);

		while (this->log_list[i].size() > 20) {

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

	ofColor color;
	for (int i = 0; i < 6; i++) {

		int deg = ofGetFrameNum() * 1.44 + (i % 3) * 120;
		int next_deg = deg + 1;
		float radius = ofRandom(145, 155);

		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);

		this->seed_list.push_back(ofMap(ofNoise(location * 0.001), 0, 1, 0, 1000));
		this->size_list.push_back(ofRandom(5, 25));

		this->velocity_list.push_back(glm::normalize(location - next));

		color.setHsb(ofRandom((i % 3) * 85, 85 + (i % 3) * 85), 180, 255);
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		ofFill();
		ofSetColor(this->color_list[i], 128);
		ofDrawCircle(this->log_list[i].back(), this->size_list[i]);

		ofColor tmp_color;
		tmp_color.setHsb(this->color_list[i].getHue(), 255, 255);

		ofNoFill();
		ofSetColor(tmp_color);
		ofDrawCircle(this->log_list[i].back(), this->size_list[i]);
	}

	/*
	int start = 150;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

int base_radius = (ofGetFrameNum() * 2) % 420 + 60;

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

if (glm::length(this->log_list[i].back()) > 720) {

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

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

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

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

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

continue;

}

auto feature = this->velocity_list[i] * 100;

auto deg = ofMap(ofNoise(this->seed_list[i], ofGetFrameNum() * 0.005), 0, 1, 0, 360);

feature += glm::vec2(30 * cos(deg * DEG_TO_RAD), 30 * sin(deg * DEG_TO_RAD));

auto next = this->log_list[i].back() + glm::normalize(feature) * 10;

this->log_list[i].push_back(next);

while (this->log_list[i].size() > 20) {

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

}

ofColor color;

for (int i = 0; i < 6; i++) {

int deg = ofGetFrameNum() * 1.44 + (i % 3) * 120;

int next_deg = deg + 1;

float radius = ofRandom(145, 155);

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->seed_list.push_back(ofMap(ofNoise(location * 0.001), 0, 1, 0, 1000));

this->size_list.push_back(ofRandom(5, 25));

this->velocity_list.push_back(glm::normalize(location - next));

color.setHsb(ofRandom((i % 3) * 85, 85 + (i % 3) * 85), 180, 255);

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

ofFill();

ofSetColor(this->color_list[i], 128);

ofDrawCircle(this->log_list[i].back(), this->size_list[i]);

ofColor tmp_color;

tmp_color.setHsb(this->color_list[i].getHue(), 255, 255);

ofNoFill();

ofSetColor(tmp_color);

ofDrawCircle(this->log_list[i].back(), this->size_list[i]);

}

int start = 150;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231124

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