junkiyoshi – ページ 180 – プログラミング de 落描き

2022年11月13日2022年11月10日

Connect heart. Draw by openFrameworks

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[ About ]
繋がるハート。

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#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) {};

	glm::vec2 make_point(float theta);

	ofMesh frame;
};

#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) {};

glm::vec2 make_point(float theta);

ofMesh frame;

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofSetLineWidth(0.5);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->frame.clear();

	float scale = 15;

	for (int i = 0; i < 3; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		for (int deg = 0; deg < 360; deg += 1) {

			auto location = glm::vec3(this->make_point(deg * DEG_TO_RAD) * scale, 0);
			location.x += ofMap(ofNoise(noise_seed.x, location.x * 0.045, ofGetFrameNum() * 0.0085), 0, 1, -30, 30);
			location.y += ofMap(ofNoise(noise_seed.y, location.y * 0.045, ofGetFrameNum() * 0.0085), 0, 1, -30, 30);

			this->frame.addVertex(location);
			this->frame.addColor(ofColor(255, 0, 0));
		}
	}

	for (int i = 0; i < this->frame.getNumVertices(); i++) {

		for (int k = i + 1; k < this->frame.getNumVertices(); k++) {

			auto distance = glm::distance(this->frame.getVertex(i), this->frame.getVertex(k));
			if (distance < 15) {

				this->frame.addIndex(i); this->frame.addIndex(k);
			}

			auto alpha = distance < 10 ? 255 : ofMap(distance, 10, 13, 255, 0);
			if (this->frame.getColor(i).a < alpha) {

				this->frame.setColor(i, ofColor(this->frame.getColor(i), alpha));
			}

			if (this->frame.getColor(k).a < alpha) {

				this->frame.setColor(k, ofColor(this->frame.getColor(k), alpha));
			}
		}

		
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	this->frame.drawVertices();

	for (int i = 0; i < this->frame.getNumVertices(); i++) {

		ofSetColor(this->frame.getColor(i));
		ofDrawSphere(this->frame.getVertex(i), ofMap(this->frame.getColor(i).a, 0, 255, 1, 0.1));
	}
}

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

ofSetLineWidth(0.5);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->frame.clear();

float scale = 15;

for (int i = 0; i < 3; i++) {

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

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

auto location = glm::vec3(this->make_point(deg * DEG_TO_RAD) * scale, 0);

location.x += ofMap(ofNoise(noise_seed.x, location.x * 0.045, ofGetFrameNum() * 0.0085), 0, 1, -30, 30);

location.y += ofMap(ofNoise(noise_seed.y, location.y * 0.045, ofGetFrameNum() * 0.0085), 0, 1, -30, 30);

this->frame.addVertex(location);

this->frame.addColor(ofColor(255, 0, 0));

}

for (int i = 0; i < this->frame.getNumVertices(); i++) {

for (int k = i + 1; k < this->frame.getNumVertices(); k++) {

auto distance = glm::distance(this->frame.getVertex(i), this->frame.getVertex(k));

if (distance < 15) {

this->frame.addIndex(i); this->frame.addIndex(k);

}

auto alpha = distance < 10 ? 255 : ofMap(distance, 10, 13, 255, 0);

if (this->frame.getColor(i).a < alpha) {

this->frame.setColor(i, ofColor(this->frame.getColor(i), alpha));

}

if (this->frame.getColor(k).a < alpha) {

this->frame.setColor(k, ofColor(this->frame.getColor(k), alpha));

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

this->frame.drawVertices();

for (int i = 0; i < this->frame.getNumVertices(); i++) {

ofSetColor(this->frame.getColor(i));

ofDrawSphere(this->frame.getVertex(i), ofMap(this->frame.getColor(i).a, 0, 255, 1, 0.1));

}

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

// 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/Insta20221113

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2022年11月12日2022年11月10日

colorfull noise. Draw by openFrameworks

[ Video ]

[ About ]
カラフルなノイズ。

[ 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(255);
}

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

	ofSeedRandom(39);

	this->mesh.clear();

	int span = 1;
	ofColor color;
	int len = 580;

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

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

			int noise_value = ofMap(ofNoise(x * 0.005, y * 0.005 + ofGetFrameNum() * 0.01, ofGetFrameNum() * 0.01), 0, 1, 0, 10);

			if (noise_value % 2 == 0) {

				continue;
			}

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

			color.setHsb(ofMap(noise_value, 0, 10, 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(255);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

int span = 1;

ofColor color;

int len = 580;

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

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

int noise_value = ofMap(ofNoise(x * 0.005, y * 0.005 + ofGetFrameNum() * 0.01, ofGetFrameNum() * 0.01), 0, 1, 0, 10);

if (noise_value % 2 == 0) {

continue;

}

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

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

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

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

color.setHsb(ofMap(noise_value, 0, 10, 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/Insta20221112

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2022年11月11日2022年11月10日

Square or circle. Draw by openFrameworks

[ Video ]

[ About ]
四角　または　丸。

[ 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) {};

	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) {};

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

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetCircleResolution(60);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int len = 600;
	int radius = len * 0.35;

	ofSetColor(32);
	ofNoFill();
	ofDrawCircle(glm::vec2(), radius);
	ofDrawRectangle(glm::vec2(), len, len);

	ofSetColor(255);
	ofFill();

	for (float param = 0; param <= 100; param++) {

		auto noise_value = ofNoise(glm::vec3(this->make_point(len, param) * 0.005, ofGetFrameNum() * 0.015));
		if (noise_value < 0.5) {

			auto location_1 = this->make_point(len, param);
			auto location_2 = this->make_point(len, param + 1);

			ofDrawLine(location_1, location_2);
			ofDrawRectangle(location_1, 6, 6);
			ofDrawRectangle(location_2, 6, 6);
		}
		else if (noise_value > 0.6) {

			auto location_1 = glm::normalize(this->make_point(len, param)) * radius;
			auto location_2 = glm::normalize(this->make_point(len, param + 1)) * radius;

			ofDrawLine(location_1, location_2);
			ofDrawCircle(location_1, 4);
			ofDrawCircle(location_2, 4);
		}
		else {

			auto location_1 = glm::normalize(this->make_point(len, param)) * radius + (this->make_point(len, param) - glm::normalize(this->make_point(len, param)) * radius) * ofMap(noise_value, 0.5, 0.6, 1, 0);
			auto location_2 = glm::normalize(this->make_point(len, param + 1)) * radius + (this->make_point(len, param + 1) - glm::normalize(this->make_point(len, param + 1)) * radius) * ofMap(noise_value, 0.5, 0.6, 1, 0);

			ofDrawLine(location_1, location_2);
			ofDrawCircle(location_1, 4);
			ofDrawRectangle(location_2, 6, 6);
		}
	}
}

//--------------------------------------------------------------
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());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetCircleResolution(60);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int len = 600;

int radius = len * 0.35;

ofSetColor(32);

ofNoFill();

ofDrawCircle(glm::vec2(), radius);

ofDrawRectangle(glm::vec2(), len, len);

ofSetColor(255);

ofFill();

for (float param = 0; param <= 100; param++) {

auto noise_value = ofNoise(glm::vec3(this->make_point(len, param) * 0.005, ofGetFrameNum() * 0.015));

if (noise_value < 0.5) {

auto location_1 = this->make_point(len, param);

auto location_2 = this->make_point(len, param + 1);

ofDrawLine(location_1, location_2);

ofDrawRectangle(location_1, 6, 6);

ofDrawRectangle(location_2, 6, 6);

}

else if (noise_value > 0.6) {

auto location_1 = glm::normalize(this->make_point(len, param)) * radius;

auto location_2 = glm::normalize(this->make_point(len, param + 1)) * radius;

ofDrawLine(location_1, location_2);

ofDrawCircle(location_1, 4);

ofDrawCircle(location_2, 4);

}

else {

auto location_1 = glm::normalize(this->make_point(len, param)) * radius + (this->make_point(len, param) - glm::normalize(this->make_point(len, param)) * radius) * ofMap(noise_value, 0.5, 0.6, 1, 0);

auto location_2 = glm::normalize(this->make_point(len, param + 1)) * radius + (this->make_point(len, param + 1) - glm::normalize(this->make_point(len, param + 1)) * radius) * ofMap(noise_value, 0.5, 0.6, 1, 0);

ofDrawLine(location_1, location_2);

ofDrawCircle(location_1, 4);

ofDrawRectangle(location_2, 6, 6);

}

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

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/Insta20221111

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