noise – ページ 389 – プログラミング de 落描き

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

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2018年3月28日2018年3月27日

迫りくる不完全な四角 openFrameworks

[ Video ]

[ About ]
透明で形が欠けた四角形を並べたら綺麗かなと思い。追加で、手前に迫ってくるように動かしてみました。

[ 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) {};

	ofPoint make_rect_point(int len, int deg, int z = 0);

	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) {};

ofPoint make_rect_point(int len, int deg, int z = 0);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofTranslate(0, 0, -2048);

	int len = ofGetWidth() / 2;
	ofColor line_color;
	for (int i = 0; i < 32; i++) {

		int deg = ofRandom(360) + ofNoise(i * 0.1, ofGetFrameNum() * 0.005) * 360;
		int deg_end = deg + ofRandom(45, 225);
		int z = ((int)ofRandom(2048) + ofGetFrameNum() * 10) % 2048;

		line_color.setHsb(ofRandom(255), 239, 239);
		ofSetColor(line_color, ofMap(z, 0, 2048, 0, 128));

		ofBeginShape();
		for (; deg < deg_end; deg += 1) {

			ofVertex(make_rect_point(len, deg, z));
		}
		ofEndShape(true);
	}
	
	this->cam.end();
}

//--------------------------------------------------------------
ofPoint ofApp::make_rect_point(int len, int deg, int z) {

	deg += 45;
	int param = deg / 90;

	switch (param % 4) {

	case 0:

		return ofPoint(len, ofMap(deg % 90, 0, 89, -len, len), z);
	case 1:

		return ofPoint(ofMap(deg % 90, 0, 89, len, -len), len, z);
	case 2:

		return ofPoint(-len, ofMap(deg % 90, 0, 89, len, -len), z);
	case 3:

		return ofPoint(ofMap(deg % 90, 0, 89, -len, len), -len, z);
	}

	return ofPoint();
}

//--------------------------------------------------------------
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);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofTranslate(0, 0, -2048);

int len = ofGetWidth() / 2;

ofColor line_color;

for (int i = 0; i < 32; i++) {

int deg = ofRandom(360) + ofNoise(i * 0.1, ofGetFrameNum() * 0.005) * 360;

int deg_end = deg + ofRandom(45, 225);

int z = ((int)ofRandom(2048) + ofGetFrameNum() * 10) % 2048;

line_color.setHsb(ofRandom(255), 239, 239);

ofSetColor(line_color, ofMap(z, 0, 2048, 0, 128));

ofBeginShape();

for (; deg < deg_end; deg += 1) {

ofVertex(make_rect_point(len, deg, z));

}

ofEndShape(true);

}

this->cam.end();

}

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

ofPoint ofApp::make_rect_point(int len, int deg, int z) {

deg += 45;

int param = deg / 90;

switch (param % 4) {

case 0:

return ofPoint(len, ofMap(deg % 90, 0, 89, -len, len), z);

case 1:

return ofPoint(ofMap(deg % 90, 0, 89, len, -len), len, z);

case 2:

return ofPoint(-len, ofMap(deg % 90, 0, 89, len, -len), z);

case 3:

return ofPoint(ofMap(deg % 90, 0, 89, -len, len), -len, z);

}

return ofPoint();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180327

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2018年3月27日2018年3月26日

ぐらぐら openFrameworks

[ Video ]

[ About ]
円を90度づつのモノクロにして、ノイズ関数でズラしてみました。ノイズ関数の強弱によって、円の形が見えたり、四角が見えたりするのが面白いですね。

[ 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) {};
};

#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(239);
	ofSetWindowTitle("Insta");

	ofSetColor(39);
}

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

}

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

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

	int span = 50;
	for (int radius = 50; radius < ofGetWidth(); radius += span) {

		ofRotate(ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.05), 0, 1, -50, 50));
		int small_radius = radius - span;

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

			int deg_start = i * 180;
			vector<ofPoint> vertices;
			for (int deg = deg_start; deg <= deg_start + 90; deg += 1) {

				vertices.push_back(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}

			for (int deg = deg_start + 90; deg >= deg_start; deg -= 1) {

				vertices.push_back(ofPoint(small_radius * cos(deg * DEG_TO_RAD), small_radius * sin(deg * DEG_TO_RAD)));
			}

			ofBeginShape();
			ofVertices(vertices);
			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);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

int span = 50;

for (int radius = 50; radius < ofGetWidth(); radius += span) {

ofRotate(ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.05), 0, 1, -50, 50));

int small_radius = radius - span;

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

int deg_start = i * 180;

vector<ofPoint> vertices;

for (int deg = deg_start; deg <= deg_start + 90; deg += 1) {

vertices.push_back(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

for (int deg = deg_start + 90; deg >= deg_start; deg -= 1) {

vertices.push_back(ofPoint(small_radius * cos(deg * DEG_TO_RAD), small_radius * sin(deg * DEG_TO_RAD)));

}

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180326

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