プログラミング de 落描き – ページ 895 – 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5日2018年4月4日

Box枠枠Line openFrameworks

[ Video ]

[ About ]
Boxの枠を描写してしています。それぞれの枠上の座標でNoise関数を使い、描写する/しないを分けているので、部分的に描写されます。

視点によって微妙に見えてくるものが違ってくるので、ぼーっと眺めていると面白いかと思います。

[ 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) {};

	ofEasyCam cam;
	void draw_box(ofPoint point, float length);
	void draw_line(ofPoint p_1, ofPoint p_2);
};

#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;

void draw_box(ofPoint point, float length);

void draw_line(ofPoint p_1, ofPoint p_2);

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(39);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

	int length = 250;
	int span = 50;
	for (int x = -length / 2 + span / 2; x <= length / 2 - span / 2; x += span) {

		for (int y = -length / 2 + span / 2; y <= length / 2 - span / 2; y += span) {

			for (int z = -length / 2 + span / 2; z <= length / 2 - span / 2; z += span) {

				this->draw_box(ofPoint(x, y, z), span);
			}
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::draw_box(ofPoint point, float length) {

	for (int x = point.x - length / 2; x < point.x + length / 2; x += 1) {

		int y_1 = point.y - length / 2;
		int y_2 = point.y + length / 2;
		int z_1 = point.z - length / 2;
		int z_2 = point.z + length / 2;

		this->draw_line(ofPoint(x, y_1, z_1), ofPoint(x + 1, y_1, z_1));
		this->draw_line(ofPoint(x, y_1, z_2), ofPoint(x + 1, y_1, z_2));
		this->draw_line(ofPoint(x, y_2, z_1), ofPoint(x + 1, y_2, z_1));
		this->draw_line(ofPoint(x, y_2, z_2), ofPoint(x + 1, y_2, z_2));
	}

	for (int y = point.y - length / 2; y < point.y + length / 2; y += 1) {

		int x_1 = point.x - length / 2;
		int x_2 = point.x + length / 2;
		int z_1 = point.z - length / 2;
		int z_2 = point.z + length / 2;

		this->draw_line(ofPoint(x_1, y, z_1), ofPoint(x_1, y + 1, z_1));
		this->draw_line(ofPoint(x_1, y, z_2), ofPoint(x_1, y + 1, z_2));
		this->draw_line(ofPoint(x_2, y, z_1), ofPoint(x_2, y + 1, z_1));
		this->draw_line(ofPoint(x_2, y, z_2), ofPoint(x_2, y + 1, z_2));
	}

	for (int z = point.z - length / 2; z < point.z + length / 2; z += 1) {

		int x_1 = point.x - length / 2;
		int x_2 = point.x + length / 2;
		int y_1 = point.y - length / 2;
		int y_2 = point.y + length / 2;

		this->draw_line(ofPoint(x_1, y_1, z), ofPoint(x_1, y_1, z + 1));
		this->draw_line(ofPoint(x_1, y_2, z), ofPoint(x_1, y_2, z + 1));
		this->draw_line(ofPoint(x_2, y_1, z), ofPoint(x_2, y_1, z + 1));
		this->draw_line(ofPoint(x_2, y_2, z), ofPoint(x_2, y_2, z + 1));
	}
}

//--------------------------------------------------------------
void ofApp::draw_line(ofPoint p_1, ofPoint p_2) {

	float noise_value = ofNoise(p_1.x * 0.005, p_1.y * 0.005 + ofGetFrameNum() * 0.025, p_1.z * 0.005);
	if (noise_value > 0.5) {
	
		ofSetColor(239, ofMap(noise_value, 0, 1, 0, 255));
		ofDrawLine(p_1, p_2);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

int length = 250;

int span = 50;

for (int x = -length / 2 + span / 2; x <= length / 2 - span / 2; x += span) {

for (int y = -length / 2 + span / 2; y <= length / 2 - span / 2; y += span) {

for (int z = -length / 2 + span / 2; z <= length / 2 - span / 2; z += span) {

this->draw_box(ofPoint(x, y, z), span);

}

this->cam.end();

}

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

void ofApp::draw_box(ofPoint point, float length) {

for (int x = point.x - length / 2; x < point.x + length / 2; x += 1) {

int y_1 = point.y - length / 2;

int y_2 = point.y + length / 2;

int z_1 = point.z - length / 2;

int z_2 = point.z + length / 2;

this->draw_line(ofPoint(x, y_1, z_1), ofPoint(x + 1, y_1, z_1));

this->draw_line(ofPoint(x, y_1, z_2), ofPoint(x + 1, y_1, z_2));

this->draw_line(ofPoint(x, y_2, z_1), ofPoint(x + 1, y_2, z_1));

this->draw_line(ofPoint(x, y_2, z_2), ofPoint(x + 1, y_2, z_2));

}

for (int y = point.y - length / 2; y < point.y + length / 2; y += 1) {

int x_1 = point.x - length / 2;

int x_2 = point.x + length / 2;

int z_1 = point.z - length / 2;

int z_2 = point.z + length / 2;

this->draw_line(ofPoint(x_1, y, z_1), ofPoint(x_1, y + 1, z_1));

this->draw_line(ofPoint(x_1, y, z_2), ofPoint(x_1, y + 1, z_2));

this->draw_line(ofPoint(x_2, y, z_1), ofPoint(x_2, y + 1, z_1));

this->draw_line(ofPoint(x_2, y, z_2), ofPoint(x_2, y + 1, z_2));

}

for (int z = point.z - length / 2; z < point.z + length / 2; z += 1) {

int x_1 = point.x - length / 2;

int x_2 = point.x + length / 2;

int y_1 = point.y - length / 2;

int y_2 = point.y + length / 2;

this->draw_line(ofPoint(x_1, y_1, z), ofPoint(x_1, y_1, z + 1));

this->draw_line(ofPoint(x_1, y_2, z), ofPoint(x_1, y_2, z + 1));

this->draw_line(ofPoint(x_2, y_1, z), ofPoint(x_2, y_1, z + 1));

this->draw_line(ofPoint(x_2, y_2, z), ofPoint(x_2, y_2, z + 1));

}

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

void ofApp::draw_line(ofPoint p_1, ofPoint p_2) {

float noise_value = ofNoise(p_1.x * 0.005, p_1.y * 0.005 + ofGetFrameNum() * 0.025, p_1.z * 0.005);

if (noise_value > 0.5) {

ofSetColor(239, ofMap(noise_value, 0, 1, 0, 255));

ofDrawLine(p_1, p_2);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180404

2018年4月4日2018年4月3日

トーラス対線 openFrameworks

[ Video ]

[ About ]
トーラス座標を180度対線で結んでみました。

[ 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) {};

	ofEasyCam cam;
	ofPoint make_point(float radius, float small_radius, float deg, float small_deg);
};

#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;

ofPoint make_point(float radius, float small_radius, float deg, float small_deg);

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofBackground(239);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
	ofSetColor(39, 139);
}

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

}

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

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

	float radius = 350;
	float small_radius = 50;

	for (int deg = 0; deg <= 360; deg += 1) {

		ofPoint p1 = make_point(radius, small_radius, deg, deg * 8 + ofGetFrameNum());
		ofPoint p2 = make_point(radius, small_radius, deg + 180, deg * 8 + ofGetFrameNum());

		ofDrawLine(p1, p2);
		ofDrawSphere(p1, 2);
	}

	this->cam.end();
}

//--------------------------------------------------------------
ofPoint ofApp::make_point(float radius, float small_radius, float deg, float small_deg) {

	float x_1 = radius * cos(deg * DEG_TO_RAD);
	float y_1 = radius * sin(deg * DEG_TO_RAD);

	float x_2 = small_radius * cos(small_deg * DEG_TO_RAD) * cos(deg * DEG_TO_RAD);
	float y_2 = small_radius * cos(small_deg * DEG_TO_RAD) * sin(deg * DEG_TO_RAD);

	float x = x_1 + x_2;
	float y = y_1 + y_2;
	float z = small_radius * sin(small_deg * DEG_TO_RAD);

	return ofPoint(x, y, z);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofBackground(239);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

ofSetColor(39, 139);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

float radius = 350;

float small_radius = 50;

for (int deg = 0; deg <= 360; deg += 1) {

ofPoint p1 = make_point(radius, small_radius, deg, deg * 8 + ofGetFrameNum());

ofPoint p2 = make_point(radius, small_radius, deg + 180, deg * 8 + ofGetFrameNum());

ofDrawLine(p1, p2);

ofDrawSphere(p1, 2);

}

this->cam.end();

}

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

ofPoint ofApp::make_point(float radius, float small_radius, float deg, float small_deg) {

float x_1 = radius * cos(deg * DEG_TO_RAD);

float y_1 = radius * sin(deg * DEG_TO_RAD);

float x_2 = small_radius * cos(small_deg * DEG_TO_RAD) * cos(deg * DEG_TO_RAD);

float y_2 = small_radius * cos(small_deg * DEG_TO_RAD) * sin(deg * DEG_TO_RAD);

float x = x_1 + x_2;

float y = y_1 + y_2;

float z = small_radius * sin(small_deg * DEG_TO_RAD);

return ofPoint(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180403

2018年4月3日2018年4月2日

Line滴る良いSphere openFrameworks

[ Video ]

[ About ]
Instagaramの投稿で、線で輪郭を表現している方がおりインスパイアされました。中心座標からの距離が一定以下の座標は、強制的に半径距離となる座標をとるように書き換えているので、中心から逃げているような動きになります。

[ Source ]

#pragma once
#include "ofMain.h"
#include "Particle.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;
	vector<unique_ptr<Particle>> particles;
};

#pragma once

#include "ofMain.h"

#include "Particle.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;

vector<unique_ptr<Particle>> particles;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofBackground(239);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
	ofSetLineWidth(3);

	for (int i = 0; i < 1024; i++) {

		unique_ptr<Particle> particle(new Particle(500));
		this->particles.push_back(std::move(particle));
	}
}

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

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

		this->particles[i]->update();
	}
}

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

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

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

		this->particles[i]->draw();
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofBackground(239);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

ofSetLineWidth(3);

for (int i = 0; i < 1024; i++) {

unique_ptr<Particle> particle(new Particle(500));

this->particles.push_back(std::move(particle));

}

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

void ofApp::update() {

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

this->particles[i]->update();

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

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

this->particles[i]->draw();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Particle {

public:
	Particle(int len);

	void update();
	void draw();
private:
	ofPoint location;
	ofPoint log;
	vector<ofPoint> logs;
	int len;
	float radius;
};

#pragma once

#include "ofMain.h"

class Particle {

public:

Particle(int len);

void update();

void draw();

private:

ofPoint location;

ofPoint log;

vector<ofPoint> logs;

int len;

float radius;

};

#include "Particle.h"

Particle::Particle(int len) {

	this->len = len;
	this->location = ofPoint(ofRandom(-this->len / 2, this->len / 2), ofRandom(-this->len, this->len), ofRandom(-this->len / 2, this->len / 2));
	this->radius = this->len / 2;
}

void Particle::update() {

	ofPoint log = ofPoint(this->location.x, (int)(this->location.y + ofGetFrameNum() * 3) % (len * 2) - len, this->location.z);

	if (log.length() < this->radius) {

		log = log.normalize() * this->radius;
	}

	if (log.y <= -len + 3) {

		this->logs.clear();
	}

	if (this->logs.size() > 24) {

		this->logs.erase(this->logs.begin());
	}
	this->logs.push_back(log);
}

void Particle::draw() {

	if (this->logs.size() > 2) {

		for (int i = 1; i < this->logs.size(); i++) {

			ofSetColor(39, 10 * i - ofMap(this->logs[i].z, -this->len / 2, this->len / 2, 0, 255));
			ofDrawLine(this->logs[i - 1], this->logs[i]);
		}
	}
}

#include "Particle.h"

Particle::Particle(int len) {

this->len = len;

this->location = ofPoint(ofRandom(-this->len / 2, this->len / 2), ofRandom(-this->len, this->len), ofRandom(-this->len / 2, this->len / 2));

this->radius = this->len / 2;

}

void Particle::update() {

ofPoint log = ofPoint(this->location.x, (int)(this->location.y + ofGetFrameNum() * 3) % (len * 2) - len, this->location.z);

if (log.length() < this->radius) {

log = log.normalize() * this->radius;

}

if (log.y <= -len + 3) {

this->logs.clear();

}

if (this->logs.size() > 24) {

this->logs.erase(this->logs.begin());

}

this->logs.push_back(log);

}

void Particle::draw() {

if (this->logs.size() > 2) {

for (int i = 1; i < this->logs.size(); i++) {

ofSetColor(39, 10 * i - ofMap(this->logs[i].z, -this->len / 2, this->len / 2, 0, 255));

ofDrawLine(this->logs[i - 1], this->logs[i]);

}

[ Link ]
https://github.com/junkiyoshi/Insta20180402

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