プログラミング de 落描き – ページ 837 – クリエイティブ・コーディングによる生成物とソース

2018年4月20日2018年4月19日

カラフルな円を沢山描く openFrameworks

[ Video ]

[ About ]
円を沢山描写しています。円の座標や大きさは、ランダムの値＋Noise関数による揺らぎをもってい、ふわふわと揺れ動いています。また、円の色は0座標(左上)からの距離によって決まり、変化するようになっているので色が連続的に変化しています。

[ 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);
	ofBackground(39);
	ofSetWindowTitle("Insta");

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	int min_size = 3;
	int max_size = 35;
	int number_of_circle = 512 + 128;
	for (int i = 0; i < number_of_circle; i++) {

		float size = ofRandom(min_size, max_size) + ofMap(ofNoise(ofRandom(512) * 0.005, ofGetFrameNum() * 0.001), 0, 1, -max_size, max_size);
		float x = ofRandom(0, ofGetWidth());
		float y = ofRandom(0, ofGetHeight());
		x += ofMap(ofNoise(ofRandom(number_of_circle) * 0.005, ofGetFrameNum() * 0.005), 0, 1, -size, size);
		y += ofMap(ofNoise(ofRandom(number_of_circle) * 0.005, ofGetFrameNum() * 0.005), 0, 1, -size, size);

		ofColor circle_color;
		circle_color.setHsb(((int)ofPoint(x, y).length() - ofGetFrameNum()) % 255, 255, 255);
		ofSetColor(circle_color, ofMap(size, min_size, max_size, 255, 25));

		ofDrawCircle(x, y, size);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int min_size = 3;

int max_size = 35;

int number_of_circle = 512 + 128;

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

float size = ofRandom(min_size, max_size) + ofMap(ofNoise(ofRandom(512) * 0.005, ofGetFrameNum() * 0.001), 0, 1, -max_size, max_size);

float x = ofRandom(0, ofGetWidth());

float y = ofRandom(0, ofGetHeight());

x += ofMap(ofNoise(ofRandom(number_of_circle) * 0.005, ofGetFrameNum() * 0.005), 0, 1, -size, size);

y += ofMap(ofNoise(ofRandom(number_of_circle) * 0.005, ofGetFrameNum() * 0.005), 0, 1, -size, size);

ofColor circle_color;

circle_color.setHsb(((int)ofPoint(x, y).length() - ofGetFrameNum()) % 255, 255, 255);

ofSetColor(circle_color, ofMap(size, min_size, max_size, 255, 25));

ofDrawCircle(x, y, size);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180419

2018年4月19日2018年4月18日

Lineで円を描く openFrameworks

[ Video ]

[ About ]
円周上を一定間隔の角度で結ぶ線を描写、沢山重ねて円を描いてみました。

[ 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);
	ofBackground(39);
	ofSetWindowTitle("Insta");

	ofSetLineWidth(1.5);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

}

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

	ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

	int radius = 150;
	int deg_span = 10;
	ofColor line_color;
	for (int deg = 0; deg < 360; deg += deg_span) {

		ofPoint start = ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		ofPoint end = ofPoint(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD));
		ofPoint gap = end - start;

		ofPoint line_start = end + gap * 100;
		ofPoint line_end = start - gap * 100;

		line_color.setHsb(((int)ofMap(deg, 0, 360, 0, 255) + ofGetFrameNum()) % 255, 255, 255);
		ofSetColor(line_color);

		ofDrawLine(line_start, line_end);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofSetLineWidth(1.5);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

int radius = 150;

int deg_span = 10;

ofColor line_color;

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

ofPoint start = ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

ofPoint end = ofPoint(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD));

ofPoint gap = end - start;

ofPoint line_start = end + gap * 100;

ofPoint line_end = start - gap * 100;

line_color.setHsb(((int)ofMap(deg, 0, 360, 0, 255) + ofGetFrameNum()) % 255, 255, 255);

ofSetColor(line_color);

ofDrawLine(line_start, line_end);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180418

2018年4月18日2018年4月17日

IcoSphereを変形 openFrameworks

[ Video ]

[ About ]
IcoSphereクラスから取得できる座標を変形させて遊んでいます。球体を構成する三角形(面)情報が取得できるので、中心座標を計算・図形で結んで、出っ張りを描写しています。

球体の半径を変化させているので、球体とトゲトゲの形に変形するのが楽しいですね。

[ 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;
};

#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;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(239);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.1);
	ofRotateY(ofGetFrameNum() * 0.25);

	float radius = 400 * ofNoise(ofGetFrameNum() * 0.01);
	ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(radius , 2);
	vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces();
	for (int i = 0; i < triangles.size(); i++) {

		ofPoint average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;
		average = average.normalized() * 240;

		ofFill();
		ofSetColor(239);
		ofBeginShape();
		ofVertex(triangles[i].getVertex(0).x, triangles[i].getVertex(0).y, triangles[i].getVertex(0).z);
		ofVertex(triangles[i].getVertex(1).x, triangles[i].getVertex(1).y, triangles[i].getVertex(1).z);
		ofVertex(triangles[i].getVertex(2).x, triangles[i].getVertex(2).y, triangles[i].getVertex(2).z);
		ofEndShape(true);

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

			ofFill();
			ofSetColor(239);
			ofBeginShape();
			ofVertex(average);
			ofVertex(triangles[i].getVertex(v).x, triangles[i].getVertex(v).y, triangles[i].getVertex(v).z);
			ofVertex(triangles[i].getVertex((v + 1) % 3).x, triangles[i].getVertex((v + 1) % 3).y, triangles[i].getVertex((v + 1) % 3).z);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(39, 198);
			ofBeginShape();
			ofVertex(average);
			ofVertex(triangles[i].getVertex(v).x, triangles[i].getVertex(v).y, triangles[i].getVertex(v).z);
			ofVertex(triangles[i].getVertex((v + 1) % 3).x, triangles[i].getVertex((v + 1) % 3).y, triangles[i].getVertex((v + 1) % 3).z);
			ofEndShape(true);
		}
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.1);

ofRotateY(ofGetFrameNum() * 0.25);

float radius = 400 * ofNoise(ofGetFrameNum() * 0.01);

ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(radius , 2);

vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces();

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

ofPoint average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;

average = average.normalized() * 240;

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertex(triangles[i].getVertex(0).x, triangles[i].getVertex(0).y, triangles[i].getVertex(0).z);

ofVertex(triangles[i].getVertex(1).x, triangles[i].getVertex(1).y, triangles[i].getVertex(1).z);

ofVertex(triangles[i].getVertex(2).x, triangles[i].getVertex(2).y, triangles[i].getVertex(2).z);

ofEndShape(true);

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

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertex(average);

ofVertex(triangles[i].getVertex(v).x, triangles[i].getVertex(v).y, triangles[i].getVertex(v).z);

ofVertex(triangles[i].getVertex((v + 1) % 3).x, triangles[i].getVertex((v + 1) % 3).y, triangles[i].getVertex((v + 1) % 3).z);

ofEndShape(true);

ofNoFill();

ofSetColor(39, 198);

ofBeginShape();

ofVertex(average);

ofVertex(triangles[i].getVertex(v).x, triangles[i].getVertex(v).y, triangles[i].getVertex(v).z);

ofVertex(triangles[i].getVertex((v + 1) % 3).x, triangles[i].getVertex((v + 1) % 3).y, triangles[i].getVertex((v + 1) % 3).z);

ofEndShape(true);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180417

2025年2月
月	火	水	木	金	土	日
					1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28