2022年5月 – ページ 5 – プログラミング de 落描き

2022年5月19日2022年5月19日

Pair colors. Draw by openFrameworks

[ Video ]

[ About ]
色と境目は別々のノイズのシード値で分ける。

Colors and borders are separated by separate noise seed values.

[ Source ]

#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) {};

	ofMesh mesh;
	ofTrueTypeFont font;
};

#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) {};

ofMesh mesh;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(0);
}

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

	ofSeedRandom(39);

	this->mesh.clear();

	int span = 1;
	ofColor color;

	for (int base_x = -240; base_x <= 240; base_x += 160) {

		for (int base_y = -240; base_y <= 240; base_y += 160) {

			auto color_noise_seed_1 = ofRandom(1000);
			auto color_noise_seed_2 = ofRandom(1000);

			for (int x = -55; x < 55; x += span) {

				for (int y = -55; y < 55; y += span) {

					auto noise_value = ofNoise((x + base_x) * 0.005, (y + base_y) * 0.005 + ofGetFrameNum() * 0.01, ofGetFrameNum() * 0.01);

					if (noise_value > 0.45 && noise_value < 0.53) {

						continue;
					}

					auto color_noise_value_1 = ofNoise(color_noise_seed_1, ofGetFrameNum() * 0.001);
					auto color_noise_value_2 = ofNoise(color_noise_seed_2, ofGetFrameNum() * 0.001);

					this->mesh.addVertex(glm::vec3(x + base_x, y + base_y, 0));
					this->mesh.addVertex(glm::vec3(x + span + base_x, y + base_y, 0));
					this->mesh.addVertex(glm::vec3(x + span + base_x, y + span + base_y, 0));
					this->mesh.addVertex(glm::vec3(x + base_x, y + span + base_y, 0));

					this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 4); this->mesh.addIndex(this->mesh.getNumVertices() - 3);
					this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3);

					if (noise_value < 0.45) {

						color.setHsb(ofMap(color_noise_value_1, 0, 0.85, 0, 255), 130, 255);
					}
					else {

						color.setHsb(ofMap(color_noise_value_2, 0, 0.85, 0, 255), 130, 255);
					}
					
					for (int i = 0; i < 4; i++) {

						this->mesh.addColor(color);
					}
				}
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	this->mesh.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

int span = 1;

ofColor color;

for (int base_x = -240; base_x <= 240; base_x += 160) {

for (int base_y = -240; base_y <= 240; base_y += 160) {

auto color_noise_seed_1 = ofRandom(1000);

auto color_noise_seed_2 = ofRandom(1000);

for (int x = -55; x < 55; x += span) {

for (int y = -55; y < 55; y += span) {

auto noise_value = ofNoise((x + base_x) * 0.005, (y + base_y) * 0.005 + ofGetFrameNum() * 0.01, ofGetFrameNum() * 0.01);

if (noise_value > 0.45 && noise_value < 0.53) {

continue;

}

auto color_noise_value_1 = ofNoise(color_noise_seed_1, ofGetFrameNum() * 0.001);

auto color_noise_value_2 = ofNoise(color_noise_seed_2, ofGetFrameNum() * 0.001);

this->mesh.addVertex(glm::vec3(x + base_x, y + base_y, 0));

this->mesh.addVertex(glm::vec3(x + span + base_x, y + base_y, 0));

this->mesh.addVertex(glm::vec3(x + span + base_x, y + span + base_y, 0));

this->mesh.addVertex(glm::vec3(x + base_x, y + span + base_y, 0));

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 4); this->mesh.addIndex(this->mesh.getNumVertices() - 3);

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3);

if (noise_value < 0.45) {

color.setHsb(ofMap(color_noise_value_1, 0, 0.85, 0, 255), 130, 255);

}

else {

color.setHsb(ofMap(color_noise_value_2, 0, 0.85, 0, 255), 130, 255);

}

for (int i = 0; i < 4; i++) {

this->mesh.addColor(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

this->mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220519

[ほしいものリスト]
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2022年5月18日

Hart tornado. Draw by openFrameworks

[ Video ]

[ About ]
ハートルネード。

Hart tornado.

[ 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) {};

	glm::vec2 make_point(float theta);
};

#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) {};

glm::vec2 make_point(float theta);

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofSetColor(255);
	ofNoFill();
	ofSetLineWidth(2);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

//--------------------------------------------------------------
void ofApp::update() {
	
	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto max_loop = 5;
	auto max_scale = 35;
	for (int deg_start = 0; deg_start < 360; deg_start += 1) {

		auto loop = ofMap(ofNoise(cos(deg_start * DEG_TO_RAD) * 0.25, sin(deg_start * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.01), 0, 1, -1.5, max_loop);

		ofBeginShape();
		for (int deg = deg_start; deg <= deg_start + 360 * loop; deg++) {

			auto scale = ofMap(deg, deg_start, deg_start + 360 * max_loop, 3, max_scale);
			auto location = make_point(deg * DEG_TO_RAD) * scale;

			ofVertex(location);
		}
		ofEndShape();
	}
}

//--------------------------------------------------------------
// Reference by https://twitter.com/shiffman/status/1095764239665512453
glm::vec2 ofApp::make_point(float theta) {

	float x = 16 * (pow(sin(theta), 3));
	float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);
	return glm::vec2(x, -y);
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(255);

ofNoFill();

ofSetLineWidth(2);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto max_loop = 5;

auto max_scale = 35;

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

auto loop = ofMap(ofNoise(cos(deg_start * DEG_TO_RAD) * 0.25, sin(deg_start * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.01), 0, 1, -1.5, max_loop);

ofBeginShape();

for (int deg = deg_start; deg <= deg_start + 360 * loop; deg++) {

auto scale = ofMap(deg, deg_start, deg_start + 360 * max_loop, 3, max_scale);

auto location = make_point(deg * DEG_TO_RAD) * scale;

ofVertex(location);

}

ofEndShape();

}

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

// Reference by https://twitter.com/shiffman/status/1095764239665512453

glm::vec2 ofApp::make_point(float theta) {

float x = 16 * (pow(sin(theta), 3));

float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);

return glm::vec2(x, -y);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220518

[ほしいものリスト]
Amazon

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2022年5月17日

Tornado circle. Draw by openFrameworks

[ Video ]

[ About ]
伸び縮みする円。

A circle that expands and contracts.

[ 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetColor(0);
	ofNoFill();
	ofSetLineWidth(2);
}

//--------------------------------------------------------------
void ofApp::update() {
	
	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto max_loop = 5;
	auto max_radius = 480;
	for (int deg_start = 0; deg_start < 360; deg_start += 45) {

		auto loop = ofMap(ofNoise(cos(deg_start * DEG_TO_RAD) * 0.2, sin(deg_start * DEG_TO_RAD) * 0.2, ofGetFrameNum() * 0.01), 0, 1, -1.5, max_loop);

		ofBeginShape();
		for (int deg = deg_start; deg <= deg_start + 360 * loop; deg++) {

			auto radius = ofMap(deg, deg_start, deg_start + 360 * max_loop, 50, max_radius);
			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

			ofVertex(location);

			if (deg == deg_start) {

				ofFill();
				ofDrawCircle(location, 3);
				ofNoFill();
			}
		}
		ofEndShape();
	}
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetColor(0);

ofNoFill();

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto max_loop = 5;

auto max_radius = 480;

for (int deg_start = 0; deg_start < 360; deg_start += 45) {

auto loop = ofMap(ofNoise(cos(deg_start * DEG_TO_RAD) * 0.2, sin(deg_start * DEG_TO_RAD) * 0.2, ofGetFrameNum() * 0.01), 0, 1, -1.5, max_loop);

ofBeginShape();

for (int deg = deg_start; deg <= deg_start + 360 * loop; deg++) {

auto radius = ofMap(deg, deg_start, deg_start + 360 * max_loop, 50, max_radius);

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

ofVertex(location);

if (deg == deg_start) {

ofFill();

ofDrawCircle(location, 3);

ofNoFill();

}

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220517

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2022年5月
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