openFrameworks – ページ 10 – プログラミング de 落描き

2025年7月20日

Meteor.

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流星。

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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 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;
};

#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;

};

#include "ofApp.h"	

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

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

	ofBackground(39);
	ofSetLineWidth(1);
	ofEnableDepthTest();

	ofSetCircleResolution(60);
}


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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.72);

	auto radius = 230;
	for (int i = 0; i < 40; i++) {

		ofRotateX(ofNoise(ofRandom(1000), i * 0.005 + ofGetFrameNum() * 0.005) * 5);
		auto radius = ofMap(ofNoise(ofRandom(1000), i * 0.005 + ofGetFrameNum() * 0.005), 0, 1, 50, 300);
		auto deg_start = ofGetFrameNum() * 5 + i * 15;

		for (int deg = deg_start; deg < deg_start + 60; deg++) {

			ofFill();
			ofSetColor(239, 239, 39, ofMap(deg, deg_start, deg_start + 60, 0, 255));

			auto target_1 = glm::vec3(radius * cos(deg * DEG_TO_RAD), 0, radius * sin(deg * DEG_TO_RAD));
			auto target_2 = glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), 0, radius * sin((deg + 1) * DEG_TO_RAD));
			ofDrawLine(target_1, target_2);
		}
	}

	this->cam.end();

	/*
	int start = 500;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << 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(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(1);

ofEnableDepthTest();

ofSetCircleResolution(60);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.72);

auto radius = 230;

for (int i = 0; i < 40; i++) {

ofRotateX(ofNoise(ofRandom(1000), i * 0.005 + ofGetFrameNum() * 0.005) * 5);

auto radius = ofMap(ofNoise(ofRandom(1000), i * 0.005 + ofGetFrameNum() * 0.005), 0, 1, 50, 300);

auto deg_start = ofGetFrameNum() * 5 + i * 15;

for (int deg = deg_start; deg < deg_start + 60; deg++) {

ofFill();

ofSetColor(239, 239, 39, ofMap(deg, deg_start, deg_start + 60, 0, 255));

auto target_1 = glm::vec3(radius * cos(deg * DEG_TO_RAD), 0, radius * sin(deg * DEG_TO_RAD));

auto target_2 = glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), 0, radius * sin((deg + 1) * DEG_TO_RAD));

ofDrawLine(target_1, target_2);

}

this->cam.end();

int start = 500;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << 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/Insta20250720

2025年7月19日

Satellite.

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[ About ]
衛星。

[ 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;
};

#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;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetLineWidth(5);
	ofEnableDepthTest();

	ofSetCircleResolution(60);
}


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

}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 1.44);

	ofNoFill();
	ofSetColor(39);
	ofDrawCircle(glm::vec2(), 200);

	auto radius = 230;
	for (int i = 0; i < 23; i++) {

		ofRotateX(15);
		auto deg_start = ofGetFrameNum() * 5 + i * 30;

		for (int deg = deg_start; deg < deg_start + 60; deg++) {

			ofFill();
			ofSetColor(39, ofMap(deg, deg_start, deg_start + 60, 0, 255));

			ofDrawSphere(radius * cos(deg * DEG_TO_RAD), 0, radius * sin(deg * DEG_TO_RAD), 5);
		}
	}

	this->cam.end();

	/*
	int start = 500;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << 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(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(5);

ofEnableDepthTest();

ofSetCircleResolution(60);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 1.44);

ofNoFill();

ofSetColor(39);

ofDrawCircle(glm::vec2(), 200);

auto radius = 230;

for (int i = 0; i < 23; i++) {

ofRotateX(15);

auto deg_start = ofGetFrameNum() * 5 + i * 30;

for (int deg = deg_start; deg < deg_start + 60; deg++) {

ofFill();

ofSetColor(39, ofMap(deg, deg_start, deg_start + 60, 0, 255));

ofDrawSphere(radius * cos(deg * DEG_TO_RAD), 0, radius * sin(deg * DEG_TO_RAD), 5);

}

this->cam.end();

int start = 500;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << 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/Insta20250719

2025年7月18日

In the Torus.

[ Video ]

[ About ]
トーラスの中。

[ 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::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;
};

#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::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();
	ofRotateZ(ofGetFrameNum() * -0.72);

	int R = 235;
	int r = 60;
	int v_span = 3;
	int u_span = 6;

	ofMesh face, line;
	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	ofColor face_color = ofColor(239);
	ofColor line_color = ofColor(39);

	for (int v = 0; v < 360; v += v_span) {

		for (int u = -0; u < 360; u += u_span) {

			auto noise_value = ofNoise(glm::vec4(this->make_point(R, 10, u, v) * 0.035, ofGetFrameNum() * 0.03));
			auto param = noise_value > 0.6 ? noise_value < 0.63 ? ofMap(noise_value, 0.6, 0.63, 1, 0) : 0 : 1;
			auto v_size = v_span * param;
			auto u_size = u_span * param;

			face.addVertex(this->make_point(R, r, u - u_size * 0.5, v - v_size * 0.5));
			face.addVertex(this->make_point(R, r, u + u_size * 0.5, v - v_size * 0.5));
			face.addVertex(this->make_point(R, r, u + u_size * 0.5, v + v_size * 0.5));
			face.addVertex(this->make_point(R, r, u - u_size * 0.5, v + v_size * 0.5));

			line.addVertex(this->make_point(R, r, u - u_size * 0.5, v - v_size * 0.5));
			line.addVertex(this->make_point(R, r, u + u_size * 0.5, v - v_size * 0.5));
			line.addVertex(this->make_point(R, r, u + u_size * 0.5, v + v_size * 0.5));
			line.addVertex(this->make_point(R, r, u - u_size * 0.5, v + v_size * 0.5));

			face.addColor(face_color);
			face.addColor(face_color);
			face.addColor(face_color);
			face.addColor(face_color);

			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

			line.addColor(line_color);
			line.addColor(line_color);
			line.addColor(line_color);
			line.addColor(line_color);

			auto noise_value_1 = ofNoise(glm::vec4(this->make_point(R, 10, u - u_span, v) * 0.035, ofGetFrameNum() * 0.03));
			auto noise_value_2 = ofNoise(glm::vec4(this->make_point(R, 10, u, v + v_span) * 0.035, ofGetFrameNum() * 0.03));
			auto noise_value_3 = ofNoise(glm::vec4(this->make_point(R, 10, u, v - v_span) * 0.035, ofGetFrameNum() * 0.03));
			auto noise_value_4 = ofNoise(glm::vec4(this->make_point(R, 10, u + u_span, v) * 0.035, ofGetFrameNum() * 0.03));

			auto param_1 = noise_value_1 > 0.6 ? noise_value_1 < 0.63 ? ofMap(noise_value_1, 0.6, 0.63, 1, 0) : 0 : 1;
			auto param_2 = noise_value_2 > 0.6 ? noise_value_2 < 0.63 ? ofMap(noise_value_2, 0.6, 0.63, 1, 0) : 0 : 1;
			auto param_3 = noise_value_3 > 0.6 ? noise_value_3 < 0.63 ? ofMap(noise_value_3, 0.6, 0.63, 1, 0) : 0 : 1;
			auto param_4 = noise_value_4 > 0.6 ? noise_value_4 < 0.63 ? ofMap(noise_value_3, 0.6, 0.63, 1, 0) : 0 : 1;

			if (param_1 < 1 || param < 1) {

				line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);
			}

			if (param_2 < 1 || param < 1) {


				line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2);
			}

			if (param_3 < 1 || param < 1) {


				line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4);
			}

			if (param_4 < 1 || param < 1) {

				line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);
			}
		}
	}

	face.drawFaces();
	line.drawWireframe();

	this->cam.end();

	/*
	int start = 500;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << 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);
		}
	}
	*/
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(ofGetFrameNum() * -0.72);

int R = 235;

int r = 60;

int v_span = 3;

int u_span = 6;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

ofColor face_color = ofColor(239);

ofColor line_color = ofColor(39);

for (int v = 0; v < 360; v += v_span) {

for (int u = -0; u < 360; u += u_span) {

auto noise_value = ofNoise(glm::vec4(this->make_point(R, 10, u, v) * 0.035, ofGetFrameNum() * 0.03));

auto param = noise_value > 0.6 ? noise_value < 0.63 ? ofMap(noise_value, 0.6, 0.63, 1, 0) : 0 : 1;

auto v_size = v_span * param;

auto u_size = u_span * param;

face.addVertex(this->make_point(R, r, u - u_size * 0.5, v - v_size * 0.5));

face.addVertex(this->make_point(R, r, u + u_size * 0.5, v - v_size * 0.5));

face.addVertex(this->make_point(R, r, u + u_size * 0.5, v + v_size * 0.5));

face.addVertex(this->make_point(R, r, u - u_size * 0.5, v + v_size * 0.5));

line.addVertex(this->make_point(R, r, u - u_size * 0.5, v - v_size * 0.5));

line.addVertex(this->make_point(R, r, u + u_size * 0.5, v - v_size * 0.5));

line.addVertex(this->make_point(R, r, u + u_size * 0.5, v + v_size * 0.5));

line.addVertex(this->make_point(R, r, u - u_size * 0.5, v + v_size * 0.5));

face.addColor(face_color);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

line.addColor(line_color);

auto noise_value_1 = ofNoise(glm::vec4(this->make_point(R, 10, u - u_span, v) * 0.035, ofGetFrameNum() * 0.03));

auto noise_value_2 = ofNoise(glm::vec4(this->make_point(R, 10, u, v + v_span) * 0.035, ofGetFrameNum() * 0.03));

auto noise_value_3 = ofNoise(glm::vec4(this->make_point(R, 10, u, v - v_span) * 0.035, ofGetFrameNum() * 0.03));

auto noise_value_4 = ofNoise(glm::vec4(this->make_point(R, 10, u + u_span, v) * 0.035, ofGetFrameNum() * 0.03));

auto param_1 = noise_value_1 > 0.6 ? noise_value_1 < 0.63 ? ofMap(noise_value_1, 0.6, 0.63, 1, 0) : 0 : 1;

auto param_2 = noise_value_2 > 0.6 ? noise_value_2 < 0.63 ? ofMap(noise_value_2, 0.6, 0.63, 1, 0) : 0 : 1;

auto param_3 = noise_value_3 > 0.6 ? noise_value_3 < 0.63 ? ofMap(noise_value_3, 0.6, 0.63, 1, 0) : 0 : 1;

auto param_4 = noise_value_4 > 0.6 ? noise_value_4 < 0.63 ? ofMap(noise_value_3, 0.6, 0.63, 1, 0) : 0 : 1;

if (param_1 < 1 || param < 1) {

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);

}

if (param_2 < 1 || param < 1) {

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2);

}

if (param_3 < 1 || param < 1) {

line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4);

}

if (param_4 < 1 || param < 1) {

line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);

}

face.drawFaces();

line.drawWireframe();

this->cam.end();

int start = 500;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << 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);

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250718

2025年8月
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