openFrameworks – ページ 13 – プログラミング de 落描き

2025年10月3日

Spiral shere.

[ Video ]

[ About ]
スパイラル球。

[ 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) {};

	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) {};

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(3);
	ofNoFill();
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();
	ofRotateX(90);

	auto radius = 250;

	for (int i = 0; i < 10; i++) {

		ofRotateZ(12);

		ofBeginShape();
		for (float theta_deg = 0; theta_deg <= 180; theta_deg += 0.5) {

			auto phi_deg = ofGetFrameNum() * 15 + theta_deg * 10;

			auto location = glm::vec3(
				radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD),
				radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD),
				radius * cos(theta_deg * DEG_TO_RAD));

			ofVertex(location);
		}
		ofEndShape();
	}

	this->cam.end();

	/*
	int start = 50;
	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(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(3);

ofNoFill();

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

auto radius = 250;

for (int i = 0; i < 10; i++) {

ofRotateZ(12);

ofBeginShape();

for (float theta_deg = 0; theta_deg <= 180; theta_deg += 0.5) {

auto phi_deg = ofGetFrameNum() * 15 + theta_deg * 10;

auto location = glm::vec3(

radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD),

radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD),

radius * cos(theta_deg * DEG_TO_RAD));

ofVertex(location);

}

ofEndShape();

}

this->cam.end();

int start = 50;

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/Insta20251003

2025年10月2日

Color bar.

[ Video ]

[ About ]
カラーの棒。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"	

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

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

	ofBackground(39);

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

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

	ofColor face_color, line_color;

	for (int radius = 360; radius > 10; radius -= 5) {

		ofMesh face, line;

		line_color.setHsb(ofRandom(255), 255, 255);
		face_color = ofColor(line_color, 64);

		line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

		int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -360, 360);
		int deg_len = 5;

		face.addVertex(glm::vec3());
		face.addColor(face_color);
		line.addVertex(glm::vec3());
		line.addColor(line_color);
		for (int deg = start_deg; deg < start_deg + deg_len; deg++) {

			face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
			face.addColor(face_color);

			line.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
			line.addColor(line_color);

			if (deg != start_deg) {

				face.addIndex(0);
				face.addIndex(face.getNumVertices() - 1);
				face.addIndex(face.getNumVertices() - 2);

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

		line.addIndex(0); line.addIndex(line.getNumVertices() - 1);
		line.addIndex(0); line.addIndex(1);

		face.draw();
		line.draw();
	}

	/*
	int start = 250;
	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(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

ofColor face_color, line_color;

for (int radius = 360; radius > 10; radius -= 5) {

ofMesh face, line;

line_color.setHsb(ofRandom(255), 255, 255);

face_color = ofColor(line_color, 64);

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -360, 360);

int deg_len = 5;

face.addVertex(glm::vec3());

face.addColor(face_color);

line.addVertex(glm::vec3());

line.addColor(line_color);

for (int deg = start_deg; deg < start_deg + deg_len; deg++) {

face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

face.addColor(face_color);

line.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

line.addColor(line_color);

if (deg != start_deg) {

face.addIndex(0);

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

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

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

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

}

line.addIndex(0); line.addIndex(line.getNumVertices() - 1);

line.addIndex(0); line.addIndex(1);

face.draw();

line.draw();

}

int start = 250;

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/Insta20251002

2025年10月1日

Propeller.

[ Video ]

[ About ]
プロペラ。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

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

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

	for (int radius = 330; radius > 0; radius -= 10) {

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

		int start_deg = ofMap(ofNoise(radius * 0.03 + ofGetFrameNum() * 0.005), 0, 1, -360, 360);
		int deg_len = 30;

		face.addVertex(glm::vec3());
		face.addColor(face_color);
		line.addVertex(glm::vec3());
		line.addColor(line_color);
		for (int deg = start_deg; deg < start_deg + deg_len; deg++) {

			face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
			face.addColor(face_color);

			line.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
			line.addColor(line_color);

			if (deg != start_deg) {

				face.addIndex(0);
				face.addIndex(face.getNumVertices() - 1);
				face.addIndex(face.getNumVertices() - 2);

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

		line.addIndex(0); line.addIndex(line.getNumVertices() - 1);
		line.addIndex(0); line.addIndex(1);

		face.draw();
		line.draw();
	}

	/*
	int start = 250;
	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(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

ofColor face_color = ofColor(239);

ofColor line_color = ofColor(39);

for (int radius = 330; radius > 0; radius -= 10) {

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

int start_deg = ofMap(ofNoise(radius * 0.03 + ofGetFrameNum() * 0.005), 0, 1, -360, 360);

int deg_len = 30;

face.addVertex(glm::vec3());

face.addColor(face_color);

line.addVertex(glm::vec3());

line.addColor(line_color);

for (int deg = start_deg; deg < start_deg + deg_len; deg++) {

face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

face.addColor(face_color);

line.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

line.addColor(line_color);

if (deg != start_deg) {

face.addIndex(0);

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

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

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

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

}

line.addIndex(0); line.addIndex(line.getNumVertices() - 1);

line.addIndex(0); line.addIndex(1);

face.draw();

line.draw();

}

int start = 250;

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/Insta20251001

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