circle – ページ 43 – プログラミング de 落描き

2022年1月21日2022年1月21日

Rings. Draw by openFrameworks

[ Video ]

[ About ]
ofBlendMode::OF_BLENDMODE_MULTIPLY

[ 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) {};

	ofMesh mesh;
	vector<float> noise_seed_list;
	vector<float> noise_param_list;
};

#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) {};

ofMesh mesh;

vector<float> noise_seed_list;

vector<float> noise_param_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(255);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

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

	for (int i = 0; i < 5; i++) {

		this->noise_seed_list.push_back(ofRandom(1000));
		this->noise_param_list.push_back(0);
	}
}

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

	this->mesh.clear();

	int radius = 300;
	int span = 25;
	ofColor color;

	for (int i = 0; i < this->noise_seed_list.size(); i++) {

		color.setHsb(ofMap(i, 0, this->noise_seed_list.size(), 0, 255), 128, 255);

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

			auto noise_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			auto noise_param = ofMap(ofNoise(this->noise_seed_list[i], noise_location.x * 0.005, noise_location.y * 0.005, this->noise_param_list[i]), 0, 1, 0.5, 1);

			this->mesh.addVertex(glm::vec3(radius * noise_param * cos(deg * DEG_TO_RAD), radius * noise_param * sin(deg * DEG_TO_RAD), 0));
			this->mesh.addColor(color);
		}

		this->noise_param_list[i] += 0.005;
	}


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

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

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

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

}

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

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

	this->mesh.drawWireframe();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

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

for (int i = 0; i < 5; i++) {

this->noise_seed_list.push_back(ofRandom(1000));

this->noise_param_list.push_back(0);

}

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

void ofApp::update() {

this->mesh.clear();

int radius = 300;

int span = 25;

ofColor color;

for (int i = 0; i < this->noise_seed_list.size(); i++) {

color.setHsb(ofMap(i, 0, this->noise_seed_list.size(), 0, 255), 128, 255);

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

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

auto noise_param = ofMap(ofNoise(this->noise_seed_list[i], noise_location.x * 0.005, noise_location.y * 0.005, this->noise_param_list[i]), 0, 1, 0.5, 1);

this->mesh.addVertex(glm::vec3(radius * noise_param * cos(deg * DEG_TO_RAD), radius * noise_param * sin(deg * DEG_TO_RAD), 0));

this->mesh.addColor(color);

}

this->noise_param_list[i] += 0.005;

}

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

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

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

if (distance < span) {

this->mesh.addIndex(i);

this->mesh.addIndex(k);

}

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

void ofApp::draw() {

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

this->mesh.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220121

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2022年1月7日

Switching half circle. Draw by openFrameworks

[ Video ]

[ About ]
半円をスイッチしていく。

Switch the half 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(30);
	ofSetWindowTitle("openframeworks");

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

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int span = 60;
	for (int x = span * -5; x < span * 5; x += span) {

		for (int y = span  * -5; y < span * 5; y += span) {

			int r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, 4);
			auto location = glm::vec2(x, y);

			if (r == 1) {

				location += glm::vec2(span, 0);
			}
			else if (r == 2) {

				location += glm::vec2(span, span);
			}
			else if (r == 3) {

				location += glm::vec2(0, span);
			}

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

				auto radius = span * 0.5;
				ofVertex(location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}
			ofVertex(location);
			ofEndShape(true);

			r = (r + 2) % 4;

			location = glm::vec2(x, y);
			if (r == 1) {

				location += glm::vec2(span, 0);
			}
			else if (r == 2) {

				location += glm::vec2(span, span);
			}
			else if (r == 3) {

				location += glm::vec2(0, span);
			}

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

				auto radius = span * 0.5;
				ofVertex(location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}
			ofVertex(location);
			ofEndShape(true);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetColor(0);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int span = 60;

for (int x = span * -5; x < span * 5; x += span) {

for (int y = span * -5; y < span * 5; y += span) {

int r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, 4);

auto location = glm::vec2(x, y);

if (r == 1) {

location += glm::vec2(span, 0);

}

else if (r == 2) {

location += glm::vec2(span, span);

}

else if (r == 3) {

location += glm::vec2(0, span);

}

int deg_start = r * 90;

ofBeginShape();

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

auto radius = span * 0.5;

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

}

ofVertex(location);

ofEndShape(true);

r = (r + 2) % 4;

location = glm::vec2(x, y);

if (r == 1) {

location += glm::vec2(span, 0);

}

else if (r == 2) {

location += glm::vec2(span, span);

}

else if (r == 3) {

location += glm::vec2(0, span);

}

deg_start = r * 90;

ofBeginShape();

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

auto radius = span * 0.5;

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

}

ofVertex(location);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220107

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2021年12月21日2021年12月21日

Chain of arcs. Draw by openFrameworks

[ Video ]

[ About ]
Noiseの引数をradius – frameCountとして、伝播するアニメーションにする。

Set the Noise argument as radius – frameCount to make it a propagating animation.

[ 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) {};

	ofMesh face, 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) {};

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(2);

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

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

	ofSeedRandom(39);

	this->face.clear();
	this->frame.clear();

	float deg_span = 2;
	float len = 10;

	for (float radius = 50; radius < 720; radius += 20) {

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

			auto noise_location = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));
			auto prev_noise_location = glm::vec2(cos((deg - deg_span) * DEG_TO_RAD), sin((deg - deg_span) * DEG_TO_RAD));
			auto next_noise_location = glm::vec2(cos((deg + deg_span) * DEG_TO_RAD), sin((deg + deg_span) * DEG_TO_RAD));
			
			auto noise_value = ofNoise(glm::vec3(noise_location * 0.5, radius * 0.005 - ofGetFrameNum() * 0.05));
			auto prev_noise_value = ofNoise(glm::vec3(prev_noise_location * 0.5, radius * 0.005 - ofGetFrameNum() * 0.05));
			auto next_noise_value = ofNoise(glm::vec3(next_noise_location * 0.5, radius * 0.005 - ofGetFrameNum() * 0.05));

			if (noise_value > 0.5) {

				vector<glm::vec3> vertices;
				vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

				this->face.addVertices(vertices);
				this->frame.addVertices(vertices);

				this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 2, this->face.getNumVertices() - 3);
				this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 3, this->face.getNumVertices() - 4);

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

				if (prev_noise_value <= 0.5) {

					this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2);
				}

				if (next_noise_value <= 0.5) {

					this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 4);
				}
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	
	ofSetColor(255);
	this->face.draw();

	ofSetColor(128);
	this->frame.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(2);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

float deg_span = 2;

float len = 10;

for (float radius = 50; radius < 720; radius += 20) {

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

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

auto prev_noise_location = glm::vec2(cos((deg - deg_span) * DEG_TO_RAD), sin((deg - deg_span) * DEG_TO_RAD));

auto next_noise_location = glm::vec2(cos((deg + deg_span) * DEG_TO_RAD), sin((deg + deg_span) * DEG_TO_RAD));

auto noise_value = ofNoise(glm::vec3(noise_location * 0.5, radius * 0.005 - ofGetFrameNum() * 0.05));

auto prev_noise_value = ofNoise(glm::vec3(prev_noise_location * 0.5, radius * 0.005 - ofGetFrameNum() * 0.05));

auto next_noise_value = ofNoise(glm::vec3(next_noise_location * 0.5, radius * 0.005 - ofGetFrameNum() * 0.05));

if (noise_value > 0.5) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 2, this->face.getNumVertices() - 3);

this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 3, this->face.getNumVertices() - 4);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);

if (prev_noise_value <= 0.5) {

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2);

}

if (next_noise_value <= 0.5) {

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 4);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofSetColor(255);

this->face.draw();

ofSetColor(128);

this->frame.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211221

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