openFrameworks – ページ 5 – プログラミング de 落描き

2025年12月16日

Pause and think.

[ Video ]

[ About ]
立ち止まって考える。

[ 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) {};

	ofEasyCam cam;
	float noise_step;
};

#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) {};

ofEasyCam cam;

float noise_step;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetCircleResolution(60);
	ofNoFill();
	ofEnableDepthTest();

	this->noise_step = ofRandom(1000);
}

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

	ofSeedRandom(39);

	auto param = ofGetFrameNum() % 50;
	if (param < 20) { this->noise_step += 0; }
	else if (param < 25) { this->noise_step += ofMap(param, 20, 25, 0, 0.015); }
	else if (param < 45) { this->noise_step += 0.015; }
	else { this->noise_step += ofMap(param, 45, 50, 0.015, 0); }
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 2.88);

	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	for (int i = 0; i < 32; i++) {

		ofPushMatrix();
		ofRotateZ(ofMap(ofNoise(noise_seed.z, this->noise_step + i * 0.0075), 0, 1, -360, 360));
		ofRotateY(ofMap(ofNoise(noise_seed.y, this->noise_step + i * 0.0075), 0, 1, -360, 360));
		ofRotateX(ofMap(ofNoise(noise_seed.x, this->noise_step + i * 0.0075), 0, 1, -360, 360));

		ofSetLineWidth(ofMap(i, 0, 32, 1, 5));
		ofDrawCircle(glm::vec3(), ofMap(i, 0, 32, 150, 250));

		ofPopMatrix();
	}

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 250;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetCircleResolution(60);

ofNoFill();

ofEnableDepthTest();

this->noise_step = ofRandom(1000);

}

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

void ofApp::update() {

ofSeedRandom(39);

auto param = ofGetFrameNum() % 50;

if (param < 20) { this->noise_step += 0; }

else if (param < 25) { this->noise_step += ofMap(param, 20, 25, 0, 0.015); }

else if (param < 45) { this->noise_step += 0.015; }

else { this->noise_step += ofMap(param, 45, 50, 0.015, 0); }

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 2.88);

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

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

ofPushMatrix();

ofRotateZ(ofMap(ofNoise(noise_seed.z, this->noise_step + i * 0.0075), 0, 1, -360, 360));

ofRotateY(ofMap(ofNoise(noise_seed.y, this->noise_step + i * 0.0075), 0, 1, -360, 360));

ofRotateX(ofMap(ofNoise(noise_seed.x, this->noise_step + i * 0.0075), 0, 1, -360, 360));

ofSetLineWidth(ofMap(i, 0, 32, 1, 5));

ofDrawCircle(glm::vec3(), ofMap(i, 0, 32, 150, 250));

ofPopMatrix();

}

this->cam.end();

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 250;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/187ce4cda8507100a50d31f6fbd3d5a7e406d563

2025年12月15日

Circle of Joint.

[ Video ]

[ About ]
関節の輪。

[ 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) {};

	float noise_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 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) {};

float noise_param;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofSetColor(239);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 60 < 35) {

		this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 35, 0.05, 0);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	ofRotateY(ofGetFrameNum() * 1.44);

	float radius = 180;
	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	for (int deg = 0; deg < 360; deg += 5) {

		auto noise_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto noise_value = ofNoise(glm::vec4(noise_seed.x, noise_location * 0.0075, this->noise_param));
		auto noise_deg = ofMap(noise_value, 0, 1, -360, 360);
		auto len = radius * 0.5;

		ofPushMatrix();
		ofRotate(deg);
		ofTranslate(glm::vec2(radius, 0));
		ofRotateY(noise_deg);

		ofDrawLine(glm::vec2(), glm::vec2(len, 0));
		ofDrawSphere(glm::vec3(), 3);
		
		ofTranslate(glm::vec2(len, 0));

		noise_value = ofNoise(glm::vec4(noise_seed.y, noise_location * 0.0075, this->noise_param));
		noise_deg = ofMap(noise_value, 0, 1, -360, 360);

		ofRotateY(noise_deg);

		ofDrawLine(glm::vec2(), glm::vec2(len * 0.5, 0));
		ofDrawSphere(glm::vec3(), 3);

		ofTranslate(glm::vec2(len * 0.5, 0));

		noise_value = ofNoise(glm::vec4(noise_seed.z, noise_location * 0.0075, this->noise_param));
		noise_deg = ofMap(noise_value, 0, 1, -360, 360);

		ofRotateY(noise_deg);

		ofDrawLine(glm::vec2(), glm::vec2(len * 0.25, 0));
		ofDrawSphere(glm::vec3(), 3);

		ofDrawSphere(glm::vec3(len * 0.25, 0, 0), 3);

		ofPopMatrix();
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 250;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetColor(239);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 60 < 35) {

this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 35, 0.05, 0);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofRotateY(ofGetFrameNum() * 1.44);

float radius = 180;

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

for (int deg = 0; deg < 360; deg += 5) {

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

auto noise_value = ofNoise(glm::vec4(noise_seed.x, noise_location * 0.0075, this->noise_param));

auto noise_deg = ofMap(noise_value, 0, 1, -360, 360);

auto len = radius * 0.5;

ofPushMatrix();

ofRotate(deg);

ofTranslate(glm::vec2(radius, 0));

ofRotateY(noise_deg);

ofDrawLine(glm::vec2(), glm::vec2(len, 0));

ofDrawSphere(glm::vec3(), 3);

ofTranslate(glm::vec2(len, 0));

noise_value = ofNoise(glm::vec4(noise_seed.y, noise_location * 0.0075, this->noise_param));

noise_deg = ofMap(noise_value, 0, 1, -360, 360);

ofRotateY(noise_deg);

ofDrawLine(glm::vec2(), glm::vec2(len * 0.5, 0));

ofDrawSphere(glm::vec3(), 3);

ofTranslate(glm::vec2(len * 0.5, 0));

noise_value = ofNoise(glm::vec4(noise_seed.z, noise_location * 0.0075, this->noise_param));

noise_deg = ofMap(noise_value, 0, 1, -360, 360);

ofRotateY(noise_deg);

ofDrawLine(glm::vec2(), glm::vec2(len * 0.25, 0));

ofDrawSphere(glm::vec3(), 3);

ofDrawSphere(glm::vec3(len * 0.25, 0, 0), 3);

ofPopMatrix();

}

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 250;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/124396af8a2a932cb98f6b35bf3b5adae7ca6479

2025年12月14日

Thorned Hole.

[ Video ]

[ About ]
棘穴

[ 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) {};

	void draw_arrow(glm::vec2 location, glm::vec2 target, float size, ofColor color);

	float noise_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 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) {};

void draw_arrow(glm::vec2 location, glm::vec2 target, float size, ofColor color);

float noise_param;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 60 < 35) {

		this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 35, 0.05, 0);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	ofRotateY(ofGetFrameNum() * 1.44);

	float radius = 200;
	for (int deg = 0; deg < 360; deg += 5) {

		auto noise_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto noise_value = ofNoise(glm::vec3(noise_location * 0.005, this->noise_param));
		auto noise_deg = ofMap(noise_value, 0, 1, -360, 360);
		auto len = radius * 0.5;

		ofPushMatrix();
		ofRotate(deg);
		ofTranslate(glm::vec2(radius, 0));
		ofRotateY(noise_deg);

		this->draw_arrow(glm::vec2(), glm::vec2(len, 0), 18, ofColor(0));

		ofPopMatrix();
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 250;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

//--------------------------------------------------------------
void ofApp::draw_arrow(glm::vec2 location, glm::vec2 target, float size, ofColor color) {

	auto angle = std::atan2(target.y - location.y, target.x - location.x);
	auto distance = glm::distance(target, location);

	if (glm::length(distance) > size * 0.1) {

		ofPushMatrix();
		ofTranslate(target);

		ofSetColor(color);
		ofFill();
		ofBeginShape();
		ofVertex(glm::vec2(size * cos(angle), size * sin(angle)));
		ofVertex(glm::vec2(size * 0.25 * cos(angle + PI * 0.5), size * 0.25 * sin(angle + PI * 0.5)));
		ofVertex(glm::vec2(size * 0.25 * cos(angle - PI * 0.5), size * 0.25 * sin(angle - PI * 0.5)));
		ofEndShape();

		ofBeginShape();
		ofVertex(glm::vec2(size * 0.25 * cos(angle + PI * 0.5), size * 0.25 * sin(angle + PI * 0.5)) * 0.25);
		ofVertex(glm::vec2(size * 0.25 * cos(angle + PI * 0.5), size * 0.25 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(distance * cos(angle), distance * sin(angle)));
		ofVertex(glm::vec2(size * 0.25 * cos(angle - PI * 0.5), size * 0.25 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(distance * cos(angle), distance * sin(angle)));
		ofVertex(glm::vec2(size * 0.25 * cos(angle - PI * 0.5), size * 0.25 * sin(angle - PI * 0.5)) * 0.25);
		ofEndShape();

		ofPopMatrix();
	}

	ofDrawSphere(glm::vec3(location, 0), 5);
}

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

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

100

101

102

103

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 60 < 35) {

this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 35, 0.05, 0);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofRotateY(ofGetFrameNum() * 1.44);

float radius = 200;

for (int deg = 0; deg < 360; deg += 5) {

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

auto noise_value = ofNoise(glm::vec3(noise_location * 0.005, this->noise_param));

auto noise_deg = ofMap(noise_value, 0, 1, -360, 360);

auto len = radius * 0.5;

ofPushMatrix();

ofRotate(deg);

ofTranslate(glm::vec2(radius, 0));

ofRotateY(noise_deg);

this->draw_arrow(glm::vec2(), glm::vec2(len, 0), 18, ofColor(0));

ofPopMatrix();

}

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 250;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

void ofApp::draw_arrow(glm::vec2 location, glm::vec2 target, float size, ofColor color) {

auto angle = std::atan2(target.y - location.y, target.x - location.x);

auto distance = glm::distance(target, location);

if (glm::length(distance) > size * 0.1) {

ofPushMatrix();

ofTranslate(target);

ofSetColor(color);

ofFill();

ofBeginShape();

ofVertex(glm::vec2(size * cos(angle), size * sin(angle)));

ofVertex(glm::vec2(size * 0.25 * cos(angle + PI * 0.5), size * 0.25 * sin(angle + PI * 0.5)));

ofVertex(glm::vec2(size * 0.25 * cos(angle - PI * 0.5), size * 0.25 * sin(angle - PI * 0.5)));

ofEndShape();

ofBeginShape();

ofVertex(glm::vec2(size * 0.25 * cos(angle + PI * 0.5), size * 0.25 * sin(angle + PI * 0.5)) * 0.25);

ofVertex(glm::vec2(size * 0.25 * cos(angle + PI * 0.5), size * 0.25 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(distance * cos(angle), distance * sin(angle)));

ofVertex(glm::vec2(size * 0.25 * cos(angle - PI * 0.5), size * 0.25 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(distance * cos(angle), distance * sin(angle)));

ofVertex(glm::vec2(size * 0.25 * cos(angle - PI * 0.5), size * 0.25 * sin(angle - PI * 0.5)) * 0.25);

ofEndShape();

ofPopMatrix();

}

ofDrawSphere(glm::vec3(location, 0), 5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/35f1628c87b31211397a22d69eeb5267569754db

2025年12月
月	火	水	木	金	土	日
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31