数学から創るジェネラティブアート – プログラミング de 落描き

2021年12月2日2021年12月2日

Move hard, move slow. Draw by openFrameworks

[ Video ]

[ About ]
ノイズの引数の値を大きく変化させたり少しだけ変化させたりする。

Vary the value of the noise argument significantly or slightly.

[ 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 gon;
	vector<float> gap_list;
	vector<ofColor> color_list;

	float noise_param;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

int gon;

vector<float> gap_list;

vector<ofColor> color_list;

float noise_param;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetLineWidth(1);

	this->gon = 10;
	for (auto i = 0; i < this->gon; i++) { this->gap_list.push_back(0); }
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 120 < 45) {

		this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 45, 0.045, 0.001);
	}
	else {

		this->noise_param += 0.001;
	}

	for (auto& gap : this->gap_list) {

		gap = ofMap(ofNoise(ofRandom(1000), this->noise_param), 0, 1, 0.01, 0.5);
	}
}

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

	ofPushMatrix();
	ofTranslate(ofGetWindowSize() * 0.5);
	ofRotate(this->noise_param * RAD_TO_DEG * 10);

	auto radius = 600;
	int deg_span = 360 / this->gon;
	vector<glm::vec2> vertices;
	auto first = true;
	while (true) {

		if (first) {

			for (auto deg = 0; deg < 360; deg += deg_span) {

				vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}

			first = false;
		}
		else {

			vector<glm::vec2> tmp;
			for (auto k = 0; k < vertices.size(); k++) {

				tmp.push_back(vertices[k] + (vertices[(k + 1) % vertices.size()] - vertices[k]) * this->gap_list[k]);
			}
			vertices = tmp;
		}

		ofSetColor(ofMap(glm::distance(vertices[0], vertices[1]), 300, 1, 0, 255));
		ofNoFill();
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		if (glm::distance(vertices[0], vertices[1]) < 1) {

			break;
		}
	}

	ofPopMatrix();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(1);

this->gon = 10;

for (auto i = 0; i < this->gon; i++) { this->gap_list.push_back(0); }

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 120 < 45) {

this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 45, 0.045, 0.001);

}

else {

this->noise_param += 0.001;

}

for (auto& gap : this->gap_list) {

gap = ofMap(ofNoise(ofRandom(1000), this->noise_param), 0, 1, 0.01, 0.5);

}

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

void ofApp::draw() {

ofPushMatrix();

ofTranslate(ofGetWindowSize() * 0.5);

ofRotate(this->noise_param * RAD_TO_DEG * 10);

auto radius = 600;

int deg_span = 360 / this->gon;

vector<glm::vec2> vertices;

auto first = true;

while (true) {

if (first) {

for (auto deg = 0; deg < 360; deg += deg_span) {

vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

first = false;

}

else {

vector<glm::vec2> tmp;

for (auto k = 0; k < vertices.size(); k++) {

tmp.push_back(vertices[k] + (vertices[(k + 1) % vertices.size()] - vertices[k]) * this->gap_list[k]);

}

vertices = tmp;

}

ofSetColor(ofMap(glm::distance(vertices[0], vertices[1]), 300, 1, 0, 255));

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (glm::distance(vertices[0], vertices[1]) < 1) {

break;

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211202

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2021年9月11日2021年9月11日

Black and white spirals. Draw by openFrameworks

[ Video ]

[ About ]
螺旋の間隔で塗る色と線の色を変える。

Change the color of the paint and the color of the lines at intervals of the spiral.

[ 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 gon;
	vector<float> gap_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) {};

int gon;

vector<float> gap_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetLineWidth(1);

	this->gon = 10;
	for (auto i = 0; i < this->gon; i++) { this->gap_list.push_back(0); }
}

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

	ofSeedRandom(139);
}

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

	for (int x = 210; x < ofGetWidth(); x += 300) {

		for (int y = 210; y < ofGetHeight(); y += 300) {

			auto next_random_seed = ofRandom(1000);

			for (auto& gap : this->gap_list) {

				gap = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.003), 0, 1, 0.01, 0.3);
			}

			ofPushMatrix();
			ofTranslate(x, y);
			ofRotate(ofRandom(360));

			auto radius = 130;
			int deg_span = 360 / this->gon;
			vector<glm::vec2> vertices;
			auto first = true;
			while (true) {

				if (first) {

					for (auto deg = 0; deg < 360; deg += deg_span) {

						vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
					}

					first = false;
				}
				else {

					vector<glm::vec2> tmp;
					for (auto k = 0; k < vertices.size(); k++) {

						tmp.push_back(vertices[k] + (vertices[(k + 1) % vertices.size()] - vertices[k]) * this->gap_list[k]);
					}
					vertices = tmp;
				}

				ofSetColor(ofMap(glm::distance(vertices[0], vertices[1]), 100, 1, 0, 255));
				ofFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				ofSetColor(ofMap(glm::distance(vertices[0], vertices[1]), 100, 1, 255, 0));
				ofNoFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				if (glm::distance(vertices[0], vertices[1]) < 1) {

					break;
				}
			}

			ofPopMatrix();
			ofSeedRandom(next_random_seed);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(1);

this->gon = 10;

for (auto i = 0; i < this->gon; i++) { this->gap_list.push_back(0); }

}

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

void ofApp::update() {

ofSeedRandom(139);

}

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

void ofApp::draw() {

for (int x = 210; x < ofGetWidth(); x += 300) {

for (int y = 210; y < ofGetHeight(); y += 300) {

auto next_random_seed = ofRandom(1000);

for (auto& gap : this->gap_list) {

gap = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.003), 0, 1, 0.01, 0.3);

}

ofPushMatrix();

ofTranslate(x, y);

ofRotate(ofRandom(360));

auto radius = 130;

int deg_span = 360 / this->gon;

vector<glm::vec2> vertices;

auto first = true;

while (true) {

if (first) {

for (auto deg = 0; deg < 360; deg += deg_span) {

vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

first = false;

}

else {

vector<glm::vec2> tmp;

for (auto k = 0; k < vertices.size(); k++) {

tmp.push_back(vertices[k] + (vertices[(k + 1) % vertices.size()] - vertices[k]) * this->gap_list[k]);

}

vertices = tmp;

}

ofSetColor(ofMap(glm::distance(vertices[0], vertices[1]), 100, 1, 0, 255));

ofFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofSetColor(ofMap(glm::distance(vertices[0], vertices[1]), 100, 1, 255, 0));

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (glm::distance(vertices[0], vertices[1]) < 1) {

break;

}

ofPopMatrix();

ofSeedRandom(next_random_seed);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210911

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Amazon

[ Sponsor Link ]

2020年7月27日2020年7月27日

Coloring to spirals. Draw by openFrameworks

[ Video ]

[ About ]
螺旋に色付け。

Coloring to spirals.

[ 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 gon;
	vector<float> gap_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) {};

int gon;

vector<float> gap_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetLineWidth(2);

	this->gon = 8;
	for (auto i = 0; i < this->gon; i++) { this->gap_list.push_back(0); }

	ofColor color;
	vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->color_list.push_back(color);
	}
}

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

	ofSeedRandom(39);
}

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

	for (int x = 210; x < ofGetWidth(); x += 300) {

		for (int y = 210; y < ofGetHeight(); y += 300) {

			auto next_random_seed = ofRandom(1000);

			for (auto& gap : this->gap_list) {

				gap = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.002), 0, 1, 0.01, 0.3);
			}

			ofPushMatrix();
			ofTranslate(x, y);
			ofRotate(ofRandom(360));

			auto radius = 130;
			int deg_span = 360 / this->gon;
			vector<glm::vec2> vertices;
			auto first = true;
			while (true) {

				if (first) {

					for (auto deg = 0; deg < 360; deg += deg_span) {

						vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
					}

					first = false;
				}
				else {

					vector<glm::vec2> tmp;
					for (auto k = 0; k < vertices.size(); k++) {

						tmp.push_back(vertices[k] + (vertices[(k + 1) % vertices.size()] - vertices[k]) * this->gap_list[k]);
					}
					vertices = tmp;
				}

				ofSetColor(this->color_list[(int)ofRandom(this->color_list.size())]);
				ofFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				ofSetColor(39);
				ofNoFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				if (glm::distance(vertices[0], vertices[1]) < 1) {

					break;
				}
			}

			ofPopMatrix();
			ofSeedRandom(next_random_seed);
		}
	}
}

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

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

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

this->gon = 8;

for (auto i = 0; i < this->gon; i++) { this->gap_list.push_back(0); }

ofColor color;

vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };

for (auto hex : hex_list) {

color.setHex(hex);

this->color_list.push_back(color);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int x = 210; x < ofGetWidth(); x += 300) {

for (int y = 210; y < ofGetHeight(); y += 300) {

auto next_random_seed = ofRandom(1000);

for (auto& gap : this->gap_list) {

gap = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.002), 0, 1, 0.01, 0.3);

}

ofPushMatrix();

ofTranslate(x, y);

ofRotate(ofRandom(360));

auto radius = 130;

int deg_span = 360 / this->gon;

vector<glm::vec2> vertices;

auto first = true;

while (true) {

if (first) {

for (auto deg = 0; deg < 360; deg += deg_span) {

vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

first = false;

}

else {

vector<glm::vec2> tmp;

for (auto k = 0; k < vertices.size(); k++) {

tmp.push_back(vertices[k] + (vertices[(k + 1) % vertices.size()] - vertices[k]) * this->gap_list[k]);

}

vertices = tmp;

}

ofSetColor(this->color_list[(int)ofRandom(this->color_list.size())]);

ofFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofSetColor(39);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (glm::distance(vertices[0], vertices[1]) < 1) {

break;

}

ofPopMatrix();

ofSeedRandom(next_random_seed);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200727

[ほしいものリスト]
Amazon

[ Sponsor Link ]

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