noise – ページ 337 – プログラミング de 落描き

2019年2月19日2019年2月19日

Piece of square. openFrameworks

[ Video ]

[ About ]
正方形を部分的に分割して色付け

Piece of square.

[ 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_piece(vector<glm::vec2>& outer, vector<glm::vec2>& inner);
	glm::vec2 make_point(int len, int param);
};

#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_piece(vector<glm::vec2>& outer, vector<glm::vec2>& inner);

glm::vec2 make_point(int len, int param);

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetLineWidth(1.5);
}

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

	ofSeedRandom(39);
}

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

	int width = 35;
	int span = 240;
	int len_start = 220;
	vector<glm::vec2> outer;
	vector<glm::vec2> inner;

	for (int x = span * 0.5; x < ofGetWidth(); x += span) {

		for (int y = span * 0.5; y < ofGetHeight(); y += span) {

			ofPushMatrix();
			ofTranslate(x, y);
			
			for (int len = len_start; len > width; len -= width * 1.5) {

				int start = ofRandom(100) + ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.01), 0, 1, 0, 100);
				for (int param = start; param < start + 100; param++) {

					if (ofRandom(100) < 7.5) {

						if (outer.size() > 10 && param < start + 90) {

							outer.push_back(this->make_point(len, param));
							inner.push_back(this->make_point(len - width, param));

							this->draw_piece(outer, inner);
						}
					}

					outer.push_back(this->make_point(len, param));
					inner.push_back(this->make_point(len - width, param));
				}

				outer.push_back(this->make_point(len, start));
				inner.push_back(this->make_point(len - width, start));

				this->draw_piece(outer, inner);
			}

			ofPopMatrix();
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw_piece(vector<glm::vec2>& outer, vector<glm::vec2>& inner) {

	ofColor random_color;
	random_color.setHsb(ofRandom(255), 180, 255);

	reverse(inner.begin(), inner.end());

	ofFill();
	ofSetColor(random_color);

	ofBeginShape();
	ofVertices(outer);
	ofVertices(inner);
	ofEndShape(true);

	ofNoFill();
	ofSetColor(39);

	ofBeginShape();
	ofVertices(outer);
	ofVertices(inner);
	ofEndShape(true);

	outer.clear();
	inner.clear();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int width = 35;

int span = 240;

int len_start = 220;

vector<glm::vec2> outer;

vector<glm::vec2> inner;

for (int x = span * 0.5; x < ofGetWidth(); x += span) {

for (int y = span * 0.5; y < ofGetHeight(); y += span) {

ofPushMatrix();

ofTranslate(x, y);

for (int len = len_start; len > width; len -= width * 1.5) {

int start = ofRandom(100) + ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.01), 0, 1, 0, 100);

for (int param = start; param < start + 100; param++) {

if (ofRandom(100) < 7.5) {

if (outer.size() > 10 && param < start + 90) {

outer.push_back(this->make_point(len, param));

inner.push_back(this->make_point(len - width, param));

this->draw_piece(outer, inner);

}

outer.push_back(this->make_point(len, param));

inner.push_back(this->make_point(len - width, param));

}

outer.push_back(this->make_point(len, start));

inner.push_back(this->make_point(len - width, start));

this->draw_piece(outer, inner);

}

ofPopMatrix();

}

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

void ofApp::draw_piece(vector<glm::vec2>& outer, vector<glm::vec2>& inner) {

ofColor random_color;

random_color.setHsb(ofRandom(255), 180, 255);

reverse(inner.begin(), inner.end());

ofFill();

ofSetColor(random_color);

ofBeginShape();

ofVertices(outer);

ofVertices(inner);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

ofVertices(outer);

ofVertices(inner);

ofEndShape(true);

outer.clear();

inner.clear();

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190219

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2019年2月17日

Noise circle. openFrameworks

[ Video ]

[ About ]
ノイズな円。

Noise circle.

[ 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 mouseEntered(int x, int y) {}
	void mouseExited(int x, int y) {}
	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 mouseEntered(int x, int y) {}

void mouseExited(int x, int y) {}

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(39);
	ofNoFill();
	ofSetLineWidth(1.5);
}

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

}

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

	int span = 240;
	int radius_base = 100;
	int len = 15;
	float hue = 0;
	for (int y = span * 0.5; y < ofGetHeight(); y += span) {

		for (int x = span * 0.5; x < ofGetWidth(); x += span) {

			ofColor color;
			color.setHsb(hue, 230, 255);
			ofSetColor(color);

			ofPushMatrix();
			ofTranslate(x, y);

			vector<glm::vec2> out_vertices;
			vector<glm::vec2> in_vertices;
			for (int deg = 0; deg < 360; deg++) {

				auto noise_point = glm::vec2(x + radius_base * cos(deg * DEG_TO_RAD), y + radius_base * sin(deg * DEG_TO_RAD));
				float noise_len = ofMap(ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01), 0, 1, 5, len);

				float radius = radius_base + noise_len;
				out_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

				radius = radius_base - noise_len;
				in_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}

			ofBeginShape();
			ofVertices(out_vertices);
			ofNextContour(true);
			ofVertices(in_vertices);
			ofEndShape(true);

			ofPopMatrix();

			hue += 25.5;
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofNoFill();

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int span = 240;

int radius_base = 100;

int len = 15;

float hue = 0;

for (int y = span * 0.5; y < ofGetHeight(); y += span) {

for (int x = span * 0.5; x < ofGetWidth(); x += span) {

ofColor color;

color.setHsb(hue, 230, 255);

ofSetColor(color);

ofPushMatrix();

ofTranslate(x, y);

vector<glm::vec2> out_vertices;

vector<glm::vec2> in_vertices;

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

auto noise_point = glm::vec2(x + radius_base * cos(deg * DEG_TO_RAD), y + radius_base * sin(deg * DEG_TO_RAD));

float noise_len = ofMap(ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01), 0, 1, 5, len);

float radius = radius_base + noise_len;

out_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

radius = radius_base - noise_len;

in_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

ofBeginShape();

ofVertices(out_vertices);

ofNextContour(true);

ofVertices(in_vertices);

ofEndShape(true);

ofPopMatrix();

hue += 25.5;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190217

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2019年2月15日2019年2月15日

Circle is sliding. openFrameworks

[ Video ]

[ About ]
円の一部ズラし。ノイズ関数から得られる値に閾値を設けて、0.3より小さい、0.7より大きいときだけ動かしています

Circle is sliding.

[ 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);
	ofNoFill();
	ofSetLineWidth(1.5);
}

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

}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	auto radius_base = 250;
	auto len = 125;
	auto deg_span = 5;
	for (auto deg = 0; deg < 360; deg += deg_span) {

		auto noise_point = glm::vec2(radius_base * cos(deg * DEG_TO_RAD), radius_base * sin(deg * DEG_TO_RAD));
		auto noise_value = ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01);
		auto radius = radius_base;
		if (noise_value > 0.7) { radius += ofMap(noise_value, 0.7, 1.0, 0, radius_base * 0.5); }
		if (noise_value < 0.3) { radius -= ofMap(noise_value, 0.0, 0.3, radius_base * 0.5, 0); }

		ofBeginShape();
		ofVertex(glm::vec2(radius * cos((deg - deg_span * 0.5)  * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5) * DEG_TO_RAD)));
		ofVertex(glm::vec2(radius * cos((deg + deg_span * 0.5)  * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5) * DEG_TO_RAD)));
		ofVertex(glm::vec2((radius - len) * cos((deg + deg_span * 0.5)  * DEG_TO_RAD), (radius - len) * sin((deg + deg_span * 0.5) * DEG_TO_RAD)));
		ofVertex(glm::vec2((radius - len) * cos((deg - deg_span * 0.5)  * DEG_TO_RAD), (radius - len) * sin((deg - deg_span * 0.5) * DEG_TO_RAD)));
		ofEndShape(true);
	}

}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofNoFill();

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

auto radius_base = 250;

auto len = 125;

auto deg_span = 5;

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

auto noise_point = glm::vec2(radius_base * cos(deg * DEG_TO_RAD), radius_base * sin(deg * DEG_TO_RAD));

auto noise_value = ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01);

auto radius = radius_base;

if (noise_value > 0.7) { radius += ofMap(noise_value, 0.7, 1.0, 0, radius_base * 0.5); }

if (noise_value < 0.3) { radius -= ofMap(noise_value, 0.0, 0.3, radius_base * 0.5, 0); }

ofBeginShape();

ofVertex(glm::vec2(radius * cos((deg - deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5) * DEG_TO_RAD)));

ofVertex(glm::vec2(radius * cos((deg + deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5) * DEG_TO_RAD)));

ofVertex(glm::vec2((radius - len) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius - len) * sin((deg + deg_span * 0.5) * DEG_TO_RAD)));

ofVertex(glm::vec2((radius - len) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius - len) * sin((deg - deg_span * 0.5) * DEG_TO_RAD)));

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190215

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