プログラミング de 落描き – ページ 462 – クリエイティブ・コーディングによる生成物とソース

2020年7月3日2020年7月3日

Paint a butterfly by coding. Draw by openFrameworks

[ Video ]

[ About ]
コーディングで蝶々を描く。

Paint a butterfly by coding.

[ 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) {};

	void draw_butter_fly(glm::vec2 location, float size);

	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) {};

void draw_butter_fly(glm::vec2 location, float size);

ofEasyCam cam;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

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

	this->draw_butter_fly(glm::vec2(-180, -180), 280);

	this->draw_butter_fly(glm::vec2(90, -270), 90);
	this->draw_butter_fly(glm::vec2(270, -270), 120);
	this->draw_butter_fly(glm::vec2(90, -90), 130);
	this->draw_butter_fly(glm::vec2(270, -90), 100);

	this->draw_butter_fly(glm::vec2(-90, 270), 90);
	this->draw_butter_fly(glm::vec2(-270, 270), 120);
	this->draw_butter_fly(glm::vec2(-90, 90), 130);
	this->draw_butter_fly(glm::vec2(-270, 90), 100);

	this->draw_butter_fly(glm::vec2(180, 180), 280);
}


//--------------------------------------------------------------
void ofApp::draw_butter_fly(glm::vec2 location, float size) {

	ofPushMatrix();
	ofTranslate(location);

	int param = ofRandom(1000);
	for (int k = 0; k < 2; k++) {

		ofRotateY(180);

		/// --- ///

		ofPushMatrix();
		k == 0 ? ofRotateY(sin(param + ofGetFrameNum() * 0.6) * 15) : ofRotateY(cos(param + ofGetFrameNum() * 0.6) * 15);

		ofBeginShape();

		ofVertex(glm::vec2());
		ofBezierVertex(glm::vec2(0, size * -0.25), glm::vec2(size * 0.25, size * -0.5), glm::vec2(size * 0.5, size * -0.5));

		ofVertex(glm::vec2(glm::vec2(size * 0.5, size * -0.5)));
		ofBezierVertex(glm::vec2(size * 0.55, size * -0.25), glm::vec2(size * 0.55, size * -0.25), glm::vec2(glm::vec2(size * 0.5, size * -0.05)));

		ofVertex(glm::vec2(size * 0.5, size * -0.05));
		ofBezierVertex(glm::vec2(size * 0.25, size * 0.05), glm::vec2(size * 0.25, size * 0.01), glm::vec2(0, 0));

		ofEndShape();

		ofPopMatrix();

		/// --- ///

		ofPushMatrix();
		k == 0 ? ofRotateY(sin(param + ofGetFrameNum() * 0.6) * 10) : ofRotateY(cos(param + ofGetFrameNum() * 0.6) * 10);

		ofBeginShape();

		ofVertex(glm::vec2(0, 0));
		ofBezierVertex(glm::vec2(size * 0.25, size * -0.01), glm::vec2(size * 0.25, size * 0.08), glm::vec2(size * 0.35, size * 0.15));

		ofVertex(glm::vec2(glm::vec2(size * 0.35, size * 0.15)));
		ofBezierVertex(glm::vec2(size * 0.35, size * 0.2), glm::vec2(size * 0.38, size * 0.25), glm::vec2(glm::vec2(size * 0.35, size * 0.35)));

		ofVertex(glm::vec2(size * 0.35, size * 0.35));
		ofBezierVertex(glm::vec2(size * 0.1, size * 0.35), glm::vec2(0, size * 0.15), glm::vec2(0, 0));

		ofEndShape();

		ofPopMatrix();
	}

	ofPopMatrix();
}


//--------------------------------------------------------------
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(239);

ofSetColor(39);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

this->draw_butter_fly(glm::vec2(-180, -180), 280);

this->draw_butter_fly(glm::vec2(90, -270), 90);

this->draw_butter_fly(glm::vec2(270, -270), 120);

this->draw_butter_fly(glm::vec2(90, -90), 130);

this->draw_butter_fly(glm::vec2(270, -90), 100);

this->draw_butter_fly(glm::vec2(-90, 270), 90);

this->draw_butter_fly(glm::vec2(-270, 270), 120);

this->draw_butter_fly(glm::vec2(-90, 90), 130);

this->draw_butter_fly(glm::vec2(-270, 90), 100);

this->draw_butter_fly(glm::vec2(180, 180), 280);

}

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

void ofApp::draw_butter_fly(glm::vec2 location, float size) {

ofPushMatrix();

ofTranslate(location);

int param = ofRandom(1000);

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

ofRotateY(180);

/// --- ///

ofPushMatrix();

k == 0 ? ofRotateY(sin(param + ofGetFrameNum() * 0.6) * 15) : ofRotateY(cos(param + ofGetFrameNum() * 0.6) * 15);

ofBeginShape();

ofVertex(glm::vec2());

ofBezierVertex(glm::vec2(0, size * -0.25), glm::vec2(size * 0.25, size * -0.5), glm::vec2(size * 0.5, size * -0.5));

ofVertex(glm::vec2(glm::vec2(size * 0.5, size * -0.5)));

ofBezierVertex(glm::vec2(size * 0.55, size * -0.25), glm::vec2(size * 0.55, size * -0.25), glm::vec2(glm::vec2(size * 0.5, size * -0.05)));

ofVertex(glm::vec2(size * 0.5, size * -0.05));

ofBezierVertex(glm::vec2(size * 0.25, size * 0.05), glm::vec2(size * 0.25, size * 0.01), glm::vec2(0, 0));

ofEndShape();

ofPopMatrix();

/// --- ///

ofPushMatrix();

k == 0 ? ofRotateY(sin(param + ofGetFrameNum() * 0.6) * 10) : ofRotateY(cos(param + ofGetFrameNum() * 0.6) * 10);

ofBeginShape();

ofVertex(glm::vec2(0, 0));

ofBezierVertex(glm::vec2(size * 0.25, size * -0.01), glm::vec2(size * 0.25, size * 0.08), glm::vec2(size * 0.35, size * 0.15));

ofVertex(glm::vec2(glm::vec2(size * 0.35, size * 0.15)));

ofBezierVertex(glm::vec2(size * 0.35, size * 0.2), glm::vec2(size * 0.38, size * 0.25), glm::vec2(glm::vec2(size * 0.35, size * 0.35)));

ofVertex(glm::vec2(size * 0.35, size * 0.35));

ofBezierVertex(glm::vec2(size * 0.1, size * 0.35), glm::vec2(0, size * 0.15), glm::vec2(0, 0));

ofEndShape();

ofPopMatrix();

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200703

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2020年7月2日2020年7月2日

Connect random walks with a curve. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォークを曲線でつなぐ。

Connect random walks with a curve.

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	vector<glm::vec2> location_list;
	vector<float> deg_list;

	for (int i = 0; i < 35; i++) {

		location_list.push_back(glm::vec2(
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 50, ofGetWidth() - 50),
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 50, ofGetHeight() - 50)));
		deg_list.push_back(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));
	}

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

		ofNoFill();
		for (int k = i + 1; k < location_list.size(); k++) {

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < 80) {

				distance > 60 ? ofSetColor(39, ofMap(distance, 60, 80, 255, 0)) : ofSetColor(39);
				
				auto handle_1 = location_list[i] + glm::vec2(50 * cos(deg_list[i] * DEG_TO_RAD), 50 * sin(deg_list[i] * DEG_TO_RAD));
				auto handle_2 = location_list[k] + glm::vec2(50 * cos(deg_list[k] * DEG_TO_RAD), 50 * sin(deg_list[k] * DEG_TO_RAD));

				ofBeginShape();
				ofVertex(location_list[i]);
				ofBezierVertex(handle_1, handle_2, location_list[k]);
				ofEndShape();
			}
		}

		ofFill();
		ofSetColor(39);
		ofDrawCircle(location_list[i], 5);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

vector<glm::vec2> location_list;

vector<float> deg_list;

for (int i = 0; i < 35; i++) {

location_list.push_back(glm::vec2(

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 50, ofGetWidth() - 50),

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 50, ofGetHeight() - 50)));

deg_list.push_back(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

}

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

ofNoFill();

for (int k = i + 1; k < location_list.size(); k++) {

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < 80) {

distance > 60 ? ofSetColor(39, ofMap(distance, 60, 80, 255, 0)) : ofSetColor(39);

auto handle_1 = location_list[i] + glm::vec2(50 * cos(deg_list[i] * DEG_TO_RAD), 50 * sin(deg_list[i] * DEG_TO_RAD));

auto handle_2 = location_list[k] + glm::vec2(50 * cos(deg_list[k] * DEG_TO_RAD), 50 * sin(deg_list[k] * DEG_TO_RAD));

ofBeginShape();

ofVertex(location_list[i]);

ofBezierVertex(handle_1, handle_2, location_list[k]);

ofEndShape();

}

ofFill();

ofSetColor(39);

ofDrawCircle(location_list[i], 5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200702

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2020年7月1日2020年7月1日

Line overlap. Draw by openFrameworks

[ Video ]

[ About ]
線の重なり。

Line overlap.

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetColor(30, 10, 10);
	ofSetLineWidth(0.5);
	ofNoFill();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	int radius = 100;
	float handle_len = radius;
	int number_of_location = 4;
	int deg_span = 360 / number_of_location;

	for (int x = 200; x <= ofGetWidth(); x += 320) {

		for (int y = 200; y <= ofGetHeight(); y += 320) {

			for (int i = 0; i < 200; i++) {

				vector<glm::vec2> location_list;
				vector<float> deg_list;
				for (int deg = 0; deg < 360; deg += deg_span) {

					location_list.push_back(glm::vec2(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD)));
					deg_list.push_back(deg + 90);
				}

				for (int k = 0; k < location_list.size(); k++) {

					deg_list[k] += ofMap(ofNoise(location_list[k].x, location_list[k].y, ofGetFrameNum() * 0.01 + i * 0.001), 0, 1, -90, 90);
				}

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

					int n = (i + 1) % location_list.size();

					ofVertex(location_list[i]);
					ofBezierVertex(
						location_list[i] + glm::vec2(handle_len * cos(deg_list[i] * DEG_TO_RAD), handle_len * sin(deg_list[i] * DEG_TO_RAD)),
						location_list[n] + glm::vec2(handle_len * cos((deg_list[n] + 180) * DEG_TO_RAD), handle_len * sin((deg_list[n] + 180) * DEG_TO_RAD)),
						location_list[n]);
				}
				ofEndShape();
			}
		}
	}
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(30, 10, 10);

ofSetLineWidth(0.5);

ofNoFill();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int radius = 100;

float handle_len = radius;

int number_of_location = 4;

int deg_span = 360 / number_of_location;

for (int x = 200; x <= ofGetWidth(); x += 320) {

for (int y = 200; y <= ofGetHeight(); y += 320) {

for (int i = 0; i < 200; i++) {

vector<glm::vec2> location_list;

vector<float> deg_list;

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

location_list.push_back(glm::vec2(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD)));

deg_list.push_back(deg + 90);

}

for (int k = 0; k < location_list.size(); k++) {

deg_list[k] += ofMap(ofNoise(location_list[k].x, location_list[k].y, ofGetFrameNum() * 0.01 + i * 0.001), 0, 1, -90, 90);

}

ofBeginShape();

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

int n = (i + 1) % location_list.size();

ofVertex(location_list[i]);

ofBezierVertex(

location_list[i] + glm::vec2(handle_len * cos(deg_list[i] * DEG_TO_RAD), handle_len * sin(deg_list[i] * DEG_TO_RAD)),

location_list[n] + glm::vec2(handle_len * cos((deg_list[n] + 180) * DEG_TO_RAD), handle_len * sin((deg_list[n] + 180) * DEG_TO_RAD)),

location_list[n]);

}

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200701

[ほしいものリスト]
Amazon

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