2018年3月 – プログラミング de 落描き

2018年3月31日2018年3月30日

廻る五角形 opneFrameworks

[ Video ]

[ About ]
五角形をグルっと回してみました。綺麗だけと、じーっと見てると酔うかも

[ 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_pentagon(int radius);
};

#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_pentagon(int radius);

};

#include "ofApp.h"

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

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

	ofSetColor(39);
	ofSetLineWidth(3);
}

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

}

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

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

	int radius_span = 10;
	ofNoFill();
	for (int radius = ofGetWidth(); radius > radius_span; radius -= radius_span) {

		ofRotate(ofGetFrameNum() * -0.05);
		this->draw_pentagon(radius);
	}

	ofFill();
	this->draw_pentagon(radius_span * 2);
}

//--------------------------------------------------------------
void ofApp::draw_pentagon(int radius) {
	
	int deg_span = 72;
	ofBeginShape();
	for (int deg = 0; deg < 360; deg += deg_span) {

		ofVertex(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
	}
	ofEndShape(true);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofSetColor(39);

ofSetLineWidth(3);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

int radius_span = 10;

ofNoFill();

for (int radius = ofGetWidth(); radius > radius_span; radius -= radius_span) {

ofRotate(ofGetFrameNum() * -0.05);

this->draw_pentagon(radius);

}

ofFill();

this->draw_pentagon(radius_span * 2);

}

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

void ofApp::draw_pentagon(int radius) {

int deg_span = 72;

ofBeginShape();

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

ofVertex(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180330

2018年3月30日2018年3月29日

丸と線 openFrameworks

[ Video ]

[ About ]
ネットに上がっていた動画を見て、色の反転ってカッコいいなと思いたち。色を変える部分が何だか、わちゃわちゃしているので、もうちょっとスッキリする方法なり機能なりを探さねば…

[ 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) {};

	ofColor color_1, color_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) {};

ofColor color_1, color_2;

};

#include "ofApp.h"

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

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

	this->color_1 = ofColor(239);
	this->color_2 = ofColor(139, 39, 39);

	ofBackground(this->color_1);
	ofSetLineWidth(5);
	ofEnableSmoothing();
}

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

	ofSeedRandom(39);
}

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

	int radius = 200;
	int x_step = 1;

	ofFill();
	ofSetColor(this->color_2);
	ofBeginShape();
	for (int deg = 0; deg < 360; deg++) {

		ofVertex(radius * cos(deg * DEG_TO_RAD) + ofGetWidth() / 2, radius * sin(deg * DEG_TO_RAD) + ofGetHeight() / 2);
	}
	ofEndShape(true);

	ofNoFill();
	for (int i = 0; i < 10; i++) {

		vector<ofPoint> vertices;
		bool overlap = false;
		float r_1 = ofRandom(0.0003, 0.001);
		float r_2 = ofRandom(0.0005, 0.002);
		for (int x = 0; x < ofGetWidth(); x += x_step) {

			ofPoint point = ofPoint(x, ofMap(ofNoise(i, x * r_1, ofGetFrameNum() * r_2), 0, 1, -ofGetHeight() * 0.2, ofGetHeight() * 1.2));
			if (point.distance(ofPoint(ofGetWidth() / 2, ofGetHeight() / 2)) < radius) {

				if (overlap) {

					vertices.push_back(point);
				}
				else {

					ofSetColor(this->color_2);
					ofBeginShape();
					ofVertices(vertices);
					ofEndShape();

					overlap = true;
					vertices.clear();
				}
			}
			else {

				if (overlap) {

					ofSetColor(this->color_1);
					ofBeginShape();
					ofVertices(vertices);
					ofEndShape();

					overlap = false;
					vertices.clear();
				}
				else {

					vertices.push_back(point);
				}
			}
		}

		overlap ? ofSetColor(this->color_1) : ofSetColor(this->color_2);
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

this->color_1 = ofColor(239);

this->color_2 = ofColor(139, 39, 39);

ofBackground(this->color_1);

ofSetLineWidth(5);

ofEnableSmoothing();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int radius = 200;

int x_step = 1;

ofFill();

ofSetColor(this->color_2);

ofBeginShape();

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

ofVertex(radius * cos(deg * DEG_TO_RAD) + ofGetWidth() / 2, radius * sin(deg * DEG_TO_RAD) + ofGetHeight() / 2);

}

ofEndShape(true);

ofNoFill();

for (int i = 0; i < 10; i++) {

vector<ofPoint> vertices;

bool overlap = false;

float r_1 = ofRandom(0.0003, 0.001);

float r_2 = ofRandom(0.0005, 0.002);

for (int x = 0; x < ofGetWidth(); x += x_step) {

ofPoint point = ofPoint(x, ofMap(ofNoise(i, x * r_1, ofGetFrameNum() * r_2), 0, 1, -ofGetHeight() * 0.2, ofGetHeight() * 1.2));

if (point.distance(ofPoint(ofGetWidth() / 2, ofGetHeight() / 2)) < radius) {

if (overlap) {

vertices.push_back(point);

}

else {

ofSetColor(this->color_2);

ofBeginShape();

ofVertices(vertices);

ofEndShape();

overlap = true;

vertices.clear();

}

else {

if (overlap) {

ofSetColor(this->color_1);

ofBeginShape();

ofVertices(vertices);

ofEndShape();

overlap = false;

vertices.clear();

}

else {

vertices.push_back(point);

}

overlap ? ofSetColor(this->color_1) : ofSetColor(this->color_2);

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180329

2018年3月29日2018年4月9日

Surfaceで桜を描く openFrameworks

[ Video ]

[ About ]
花見の季節なので、桜の枝っぽいものを描けるようにしました。せっかくなのでSurface + Surface Penで手書き？描写。
色をピンクから緑にしたら海ブドウ描写機能に変身できる気がする…

[ 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("Insta");

	ofSetBackgroundAuto(false);
}

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

}

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

	if (ofGetMousePressed() == false) {

		return;
	}

	ofPoint mouse = ofPoint(ofGetMouseX(), ofGetMouseY());
	ofPoint prev_mouse = ofPoint(ofGetPreviousMouseX(), ofGetPreviousMouseY());

	ofSetColor(39);
	ofSetLineWidth(20);
	ofDrawLine(mouse, prev_mouse);

	if (ofRandom(100) < 50) {

		ofPoint target = mouse - prev_mouse;
		target *= 10;

		ofPushMatrix();
		ofTranslate(mouse);

		ofSetLineWidth(10);
		ofDrawLine(ofPoint(0, 0), target);

		ofSetColor(255, 200, 200);
		for (int f = 0; f < target.length() * 0.5; f++) {

			ofFill();
			ofDrawCircle(target * ofRandom(1) + ofPoint(ofRandom(-30, 30), ofRandom(-30, 30)), 3);
		}

		ofPopMatrix();
	}
}

//--------------------------------------------------------------
void ofApp::keyPressed(int key) {

	if (key == 'c') {

		ofBackground(39 + 39);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

ofSetBackgroundAuto(false);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

if (ofGetMousePressed() == false) {

return;

}

ofPoint mouse = ofPoint(ofGetMouseX(), ofGetMouseY());

ofPoint prev_mouse = ofPoint(ofGetPreviousMouseX(), ofGetPreviousMouseY());

ofSetColor(39);

ofSetLineWidth(20);

ofDrawLine(mouse, prev_mouse);

if (ofRandom(100) < 50) {

ofPoint target = mouse - prev_mouse;

target *= 10;

ofPushMatrix();

ofTranslate(mouse);

ofSetLineWidth(10);

ofDrawLine(ofPoint(0, 0), target);

ofSetColor(255, 200, 200);

for (int f = 0; f < target.length() * 0.5; f++) {

ofFill();

ofDrawCircle(target * ofRandom(1) + ofPoint(ofRandom(-30, 30), ofRandom(-30, 30)), 3);

}

ofPopMatrix();

}

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

void ofApp::keyPressed(int key) {

if (key == 'c') {

ofBackground(39 + 39);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180328

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