プログラミング de 落描き – ページ 2 – クリエイティブ・コーディングによる生成物とソース

2025年7月15日

Tunnel.

[ Video ]

[ About ]
トンネル。

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

	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) {};

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

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();
	ofRotateX(360 - 60);

	float R = 200;
	float r = 50;
	float u_span = 5;

	ofMesh face, line;
	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	for (int r = 100; r > 0; r -= 1) {

		int v_start = ofMap(ofNoise(r * 0.01 + ofGetFrameNum() * 0.02), 0, 1, -720, 720);
		int v_end = v_start + 16;
		int v_span = 1;

		for (int v = v_start; v <= v_end; v += v_span) {

			for (int u = 0; u < 180; u += u_span) {

				face.addVertex(this->make_point(R, r, u - u_span * 0.5, v - v_span * 0.5));
				face.addVertex(this->make_point(R, r, u + u_span * 0.5, v - v_span * 0.5));
				face.addVertex(this->make_point(R, r, u + u_span * 0.5, v + v_span * 0.5));
				face.addVertex(this->make_point(R, r, u - u_span * 0.5, v + v_span * 0.5));

				line.addVertex(this->make_point(R, r, u - u_span * 0.51, v - v_span * 0.51));
				line.addVertex(this->make_point(R, r, u + u_span * 0.51, v - v_span * 0.51));
				line.addVertex(this->make_point(R, r, u + u_span * 0.51, v + v_span * 0.51));
				line.addVertex(this->make_point(R, r, u - u_span * 0.51, v + v_span * 0.51));

				for (int i = 0; i < 4; i++) {

					face.addColor(ofColor(39));
					line.addColor(ofColor(239));
				}

				face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
				face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

				if (u == 0) {

					line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);
				}

				if (u == 180) {

					line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);
				}

				if (v == v_start) {

					line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4);
				}

				if (v == v_end) {

					line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2);
				}
			}
		}
	}

	face.draw();
	line.drawWireframe();

	this->cam.end();

	/*
	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);
		}
	}
	*/
}

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

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

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(360 - 60);

float R = 200;

float r = 50;

float u_span = 5;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int r = 100; r > 0; r -= 1) {

int v_start = ofMap(ofNoise(r * 0.01 + ofGetFrameNum() * 0.02), 0, 1, -720, 720);

int v_end = v_start + 16;

int v_span = 1;

for (int v = v_start; v <= v_end; v += v_span) {

for (int u = 0; u < 180; u += u_span) {

face.addVertex(this->make_point(R, r, u - u_span * 0.5, v - v_span * 0.5));

face.addVertex(this->make_point(R, r, u + u_span * 0.5, v - v_span * 0.5));

face.addVertex(this->make_point(R, r, u + u_span * 0.5, v + v_span * 0.5));

face.addVertex(this->make_point(R, r, u - u_span * 0.5, v + v_span * 0.5));

line.addVertex(this->make_point(R, r, u - u_span * 0.51, v - v_span * 0.51));

line.addVertex(this->make_point(R, r, u + u_span * 0.51, v - v_span * 0.51));

line.addVertex(this->make_point(R, r, u + u_span * 0.51, v + v_span * 0.51));

line.addVertex(this->make_point(R, r, u - u_span * 0.51, v + v_span * 0.51));

for (int i = 0; i < 4; i++) {

face.addColor(ofColor(39));

line.addColor(ofColor(239));

}

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

if (u == 0) {

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);

}

if (u == 180) {

line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);

}

if (v == v_start) {

line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4);

}

if (v == v_end) {

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

}

face.draw();

line.drawWireframe();

this->cam.end();

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);

}

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

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);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250715

2025年7月14日

RGB color circle.

[ Video ]

[ About ]
3色カラーの円

[ 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) {};

	float radius;
	vector<glm::vec2> location_list;
	vector<glm::vec3> noise_param_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) {};

float radius;

vector<glm::vec2> location_list;

vector<glm::vec3> noise_param_list;

};

#include "ofApp.h"

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

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

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

	this->radius = 8;
	auto x_span = radius * sqrt(3);
	auto flg = true;
	for (float y = -100; y < 820; y += radius * 1.5) {

		for (float x = -100; x < 820; x += x_span) {

			glm::vec2 location;
			if (flg) {

				location = glm::vec2(x, y);
			}
			else {

				location = glm::vec2(x + (x_span / 2), y);
			}

			this->location_list.push_back(location);
			this->noise_param_list.push_back(glm::vec3());
		}
		flg = !flg;
	}
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

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

		this->noise_param_list[i].x -= 0.05;
		if (this->noise_param_list[i].x < 0) { this->noise_param_list[i].x = 0; }

		this->noise_param_list[i].y -= 0.05;
		if (this->noise_param_list[i].y < 0) { this->noise_param_list[i].y = 0; }

		this->noise_param_list[i].z -= 0.05;
		if (this->noise_param_list[i].z < 0) { this->noise_param_list[i].z = 0; }
	}

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

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		auto noise_radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 50, 350);
		auto noise_deg = ofGetFrameNum() * 1.44 * 5 + i * 120;

		auto noise_location = glm::vec2(
			ofGetWindowWidth() * 0.5 + noise_radius * cos(noise_deg * DEG_TO_RAD),
			ofGetWindowHeight() * 0.5 + noise_radius * sin(noise_deg * DEG_TO_RAD));

		int index = 0;
		for (auto& location : this->location_list) {

			auto distance = glm::distance(location, noise_location);
			if (distance < 60) {

				if (i == 0) {

					this->noise_param_list[index].x += distance < 25 ? 1 : ofMap(distance, 25, 50, 1, 0);
					if (this->noise_param_list[index].x > 1.5) { this->noise_param_list[index].x = 1.5; }
				}
				if (i == 1) {

					this->noise_param_list[index].y += distance < 25 ? 1 : ofMap(distance, 25, 50, 1, 0);
					if (this->noise_param_list[index].y > 1.5) { this->noise_param_list[index].y = 1.5; }
				}
				if (i == 2) {

					this->noise_param_list[index].z += distance < 25 ? 1 : ofMap(distance, 25, 50, 1, 0);
					if (this->noise_param_list[index].z > 1.5) { this->noise_param_list[index].z = 1.5; }
				}
			}

			index++;
		}
	}

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

		if (this->noise_param_list[i].x > 0) {

			vector<glm::vec2> vertices;
			for (int deg = 90; deg < 450; deg += 60) {

				vertices.push_back(this->location_list[i] + glm::vec2(this->radius * 0.95 * cos(deg * DEG_TO_RAD), this->radius * 0.95 * sin(deg * DEG_TO_RAD)));
			}

			ofSetColor(ofColor(255, 0, 0, this->noise_param_list[i].x > 1 ? 255 : ofMap(this->noise_param_list[i].x, 0, 1, 0, 255)));

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

		if (this->noise_param_list[i].y > 0) {

			vector<glm::vec2> vertices;
			for (int deg = 90; deg < 450; deg += 60) {

				vertices.push_back(this->location_list[i] + glm::vec2(this->radius * 0.95 * cos(deg * DEG_TO_RAD), this->radius * 0.95 * sin(deg * DEG_TO_RAD)));
			}

			ofSetColor(ofColor(0, 255, 0, this->noise_param_list[i].y > 1 ? 255 : ofMap(this->noise_param_list[i].y, 0, 1, 0, 255)));

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

		if (this->noise_param_list[i].z > 0) {

			vector<glm::vec2> vertices;
			for (int deg = 90; deg < 450; deg += 60) {

				vertices.push_back(this->location_list[i] + glm::vec2(this->radius * 0.95 * cos(deg * DEG_TO_RAD), this->radius * 0.95 * sin(deg * DEG_TO_RAD)));
			}

			ofSetColor(ofColor(0, 0, 255, this->noise_param_list[i].z > 1 ? 255 : ofMap(this->noise_param_list[i].z, 0, 1, 0, 255)));

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

	/*
	int start = 50;
	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);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->radius = 8;

auto x_span = radius * sqrt(3);

auto flg = true;

for (float y = -100; y < 820; y += radius * 1.5) {

for (float x = -100; x < 820; x += x_span) {

glm::vec2 location;

if (flg) {

location = glm::vec2(x, y);

}

else {

location = glm::vec2(x + (x_span / 2), y);

}

this->location_list.push_back(location);

this->noise_param_list.push_back(glm::vec3());

}

flg = !flg;

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

this->noise_param_list[i].x -= 0.05;

if (this->noise_param_list[i].x < 0) { this->noise_param_list[i].x = 0; }

this->noise_param_list[i].y -= 0.05;

if (this->noise_param_list[i].y < 0) { this->noise_param_list[i].y = 0; }

this->noise_param_list[i].z -= 0.05;

if (this->noise_param_list[i].z < 0) { this->noise_param_list[i].z = 0; }

}

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

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

auto noise_radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 50, 350);

auto noise_deg = ofGetFrameNum() * 1.44 * 5 + i * 120;

auto noise_location = glm::vec2(

ofGetWindowWidth() * 0.5 + noise_radius * cos(noise_deg * DEG_TO_RAD),

ofGetWindowHeight() * 0.5 + noise_radius * sin(noise_deg * DEG_TO_RAD));

int index = 0;

for (auto& location : this->location_list) {

auto distance = glm::distance(location, noise_location);

if (distance < 60) {

if (i == 0) {

this->noise_param_list[index].x += distance < 25 ? 1 : ofMap(distance, 25, 50, 1, 0);

if (this->noise_param_list[index].x > 1.5) { this->noise_param_list[index].x = 1.5; }

}

if (i == 1) {

this->noise_param_list[index].y += distance < 25 ? 1 : ofMap(distance, 25, 50, 1, 0);

if (this->noise_param_list[index].y > 1.5) { this->noise_param_list[index].y = 1.5; }

}

if (i == 2) {

this->noise_param_list[index].z += distance < 25 ? 1 : ofMap(distance, 25, 50, 1, 0);

if (this->noise_param_list[index].z > 1.5) { this->noise_param_list[index].z = 1.5; }

}

index++;

}

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

if (this->noise_param_list[i].x > 0) {

vector<glm::vec2> vertices;

for (int deg = 90; deg < 450; deg += 60) {

vertices.push_back(this->location_list[i] + glm::vec2(this->radius * 0.95 * cos(deg * DEG_TO_RAD), this->radius * 0.95 * sin(deg * DEG_TO_RAD)));

}

ofSetColor(ofColor(255, 0, 0, this->noise_param_list[i].x > 1 ? 255 : ofMap(this->noise_param_list[i].x, 0, 1, 0, 255)));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

if (this->noise_param_list[i].y > 0) {

vector<glm::vec2> vertices;

for (int deg = 90; deg < 450; deg += 60) {

vertices.push_back(this->location_list[i] + glm::vec2(this->radius * 0.95 * cos(deg * DEG_TO_RAD), this->radius * 0.95 * sin(deg * DEG_TO_RAD)));

}

ofSetColor(ofColor(0, 255, 0, this->noise_param_list[i].y > 1 ? 255 : ofMap(this->noise_param_list[i].y, 0, 1, 0, 255)));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

if (this->noise_param_list[i].z > 0) {

vector<glm::vec2> vertices;

for (int deg = 90; deg < 450; deg += 60) {

vertices.push_back(this->location_list[i] + glm::vec2(this->radius * 0.95 * cos(deg * DEG_TO_RAD), this->radius * 0.95 * sin(deg * DEG_TO_RAD)));

}

ofSetColor(ofColor(0, 0, 255, this->noise_param_list[i].z > 1 ? 255 : ofMap(this->noise_param_list[i].z, 0, 1, 0, 255)));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

int start = 50;

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/Insta20250714

2025年7月13日

Make circle.

[ Video ]

[ About ]
円を描く。

[ 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) {};

	float radius;
	vector<glm::vec2> location_list;
	vector<float> noise_param_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) {};

float radius;

vector<glm::vec2> location_list;

vector<float> noise_param_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofFill();
	ofSetLineWidth(1.5);

	this->radius = 10;
	auto x_span = radius * sqrt(3);
	auto flg = true;
	for (float y = -100; y < 820; y += radius * 1.5) {

		for (float x = -100; x < 820; x += x_span) {

			glm::vec2 location;
			if (flg) {

				location = glm::vec2(x, y);
			}
			else {

				location = glm::vec2(x + (x_span / 2), y);
			}

			this->location_list.push_back(location);
			this->noise_param_list.push_back(0);
		}
		flg = !flg;
	}
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
	auto noise_radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 150, 250);
	auto noise_deg = ofGetFrameNum() * 1.44 * 5;

	auto noise_location = glm::vec2(
		ofGetWindowWidth() * 0.5 + noise_radius * cos(noise_deg * DEG_TO_RAD),
		ofGetWindowHeight() * 0.5 + noise_radius * sin(noise_deg * DEG_TO_RAD));

	int index = 0;
	for (auto& location : this->location_list) {

		this->noise_param_list[index] -= 0.05;
		if (this->noise_param_list[index] < 0) { this->noise_param_list[index] = 0; }

		auto distance = glm::distance(location, noise_location);
		if (distance < 50) {

			this->noise_param_list[index] += distance < 25 ? 1 : ofMap(distance, 25, 50, 1, 0);
			if (this->noise_param_list[index] > 1.5) { this->noise_param_list[index] = 1.5; }
		}

		if (this->noise_param_list[index] > 0) {

			vector<glm::vec2> vertices;
			for (int deg = 90; deg < 450; deg += 60) {

				vertices.push_back(location + glm::vec2(this->radius * 0.95 * cos(deg * DEG_TO_RAD), this->radius * 0.95 * sin(deg * DEG_TO_RAD)));
			}

			ofSetColor(239, 39, 39, this->noise_param_list[index] > 1 ? 255 : ofMap(this->noise_param_list[index], 0, 1, 0, 255));

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

		}

		index++;
	}

	/*
	int start = 50;
	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);

ofFill();

ofSetLineWidth(1.5);

this->radius = 10;

auto x_span = radius * sqrt(3);

auto flg = true;

for (float y = -100; y < 820; y += radius * 1.5) {

for (float x = -100; x < 820; x += x_span) {

glm::vec2 location;

if (flg) {

location = glm::vec2(x, y);

}

else {

location = glm::vec2(x + (x_span / 2), y);

}

this->location_list.push_back(location);

this->noise_param_list.push_back(0);

}

flg = !flg;

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

auto noise_radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 150, 250);

auto noise_deg = ofGetFrameNum() * 1.44 * 5;

auto noise_location = glm::vec2(

ofGetWindowWidth() * 0.5 + noise_radius * cos(noise_deg * DEG_TO_RAD),

ofGetWindowHeight() * 0.5 + noise_radius * sin(noise_deg * DEG_TO_RAD));

int index = 0;

for (auto& location : this->location_list) {

this->noise_param_list[index] -= 0.05;

if (this->noise_param_list[index] < 0) { this->noise_param_list[index] = 0; }

auto distance = glm::distance(location, noise_location);

if (distance < 50) {

this->noise_param_list[index] += distance < 25 ? 1 : ofMap(distance, 25, 50, 1, 0);

if (this->noise_param_list[index] > 1.5) { this->noise_param_list[index] = 1.5; }

}

if (this->noise_param_list[index] > 0) {

vector<glm::vec2> vertices;

for (int deg = 90; deg < 450; deg += 60) {

vertices.push_back(location + glm::vec2(this->radius * 0.95 * cos(deg * DEG_TO_RAD), this->radius * 0.95 * sin(deg * DEG_TO_RAD)));

}

ofSetColor(239, 39, 39, this->noise_param_list[index] > 1 ? 255 : ofMap(this->noise_param_list[index], 0, 1, 0, 255));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

index++;

}

int start = 50;

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/Insta20250713

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