openFrameworks – ページ 2 – プログラミング de 落描き

2025年12月24日

Vanishing Vortex.

[ Video ]

[ About ]
消える渦。

[ 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) {};

	vector<glm::vec2> noise_seed_list;
	vector<glm::vec2> location_list;
	vector<glm::vec2> velocity_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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

vector<glm::vec2> noise_seed_list;

vector<glm::vec2> location_list;

vector<glm::vec2> velocity_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

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

		this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));
	}
}

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

	int index = 0;
	auto radius = 60;
	for (auto& noise_seed : this->noise_seed_list) {

		auto deg = ofGetFrameNum() * 3 + index * 120;
		auto next_deg = deg + 3;

		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

		auto distance = location - next;
		distance *= 1;

		for (int i = 0; i < 2; i++) {

			auto future = location + distance * 8;
			auto random_deg = ofRandom(360);
			future += glm::vec2(4 * cos(random_deg * DEG_TO_RAD), 4 * sin(random_deg * DEG_TO_RAD));
			auto future_distance = future - location;

			this->location_list.push_back(location);
			this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));
		}

		index++;
	}

	for (int i = this->location_list.size() - 1; i > -1; i--) {

		this->location_list[i] += this->velocity_list[i];
		this->velocity_list[i] *= 1.01;

		if (glm::length(this->location_list[i]) > 360) {

			this->location_list.erase(this->location_list.begin() + i);
			this->velocity_list.erase(this->velocity_list.begin() + i);
		}
	}

}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	ofRotateY(180);

	ofSetColor(0);
	for (auto& location : this->location_list) {

		ofPushMatrix();
		ofTranslate(location);

		auto size = ofMap(glm::length(location), 60, 320, 5, 50);
		ofDrawRectangle(glm::vec2(), size, size);

		ofPopMatrix();
	}

	ofSetColor(239);
	for (auto& location : this->location_list) {

		ofPushMatrix();
		ofTranslate(location);

		auto size = ofMap(glm::length(location), 60, 320, 1, 50);
		ofDrawRectangle(glm::vec2(), size, size);

		ofPopMatrix();
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 350;
	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());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

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

this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));

}

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

void ofApp::update() {

int index = 0;

auto radius = 60;

for (auto& noise_seed : this->noise_seed_list) {

auto deg = ofGetFrameNum() * 3 + index * 120;

auto next_deg = deg + 3;

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

auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

auto distance = location - next;

distance *= 1;

for (int i = 0; i < 2; i++) {

auto future = location + distance * 8;

auto random_deg = ofRandom(360);

future += glm::vec2(4 * cos(random_deg * DEG_TO_RAD), 4 * sin(random_deg * DEG_TO_RAD));

auto future_distance = future - location;

this->location_list.push_back(location);

this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));

}

index++;

}

for (int i = this->location_list.size() - 1; i > -1; i--) {

this->location_list[i] += this->velocity_list[i];

this->velocity_list[i] *= 1.01;

if (glm::length(this->location_list[i]) > 360) {

this->location_list.erase(this->location_list.begin() + i);

this->velocity_list.erase(this->velocity_list.begin() + i);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofRotateY(180);

ofSetColor(0);

for (auto& location : this->location_list) {

ofPushMatrix();

ofTranslate(location);

auto size = ofMap(glm::length(location), 60, 320, 5, 50);

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

ofPopMatrix();

}

ofSetColor(239);

for (auto& location : this->location_list) {

ofPushMatrix();

ofTranslate(location);

auto size = ofMap(glm::length(location), 60, 320, 1, 50);

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

ofPopMatrix();

}

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

int start = 350;

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/7546cb8052e19b60fb6fe0df59011200f3c847ca

2025年12月23日

Smooth lines.

[ Video ]

[ About ]
なめらか線。

[ 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) {};

	ofEasyCam cam;
	ofMesh frame;
};

#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;

ofMesh frame;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

	this->frame.clear();

	for (auto y = -300; y < 300; y += 30) {

		for (auto x = -600; x <= 600; x += 1) {

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(x, y, 0));
			vertices.push_back(glm::vec3(x + 1, y, 0));
			vertices.push_back(glm::vec3(x + 1, y, 100));
			vertices.push_back(glm::vec3(x, y, 100));

			for (auto& vertex : vertices) {

				if (vertex.z == 100) {

					auto noise_value = ofNoise(y * 0.005, vertex.x * 0.0025, vertex.y * 0.0025, ofGetFrameNum() * 0.005);
					if (noise_value > 0.5) {

						vertex.z = ofMap(noise_value, 0.5, 1, 0, 1000);
						vertex.z *= ofMap(y, -300, 300, 0, 1);
						vertex.z *= ofMap(abs(x), 0, 600, 1, 0);
					}
					else {

						vertex.z = 0;
					}
				}
			}

			this->frame.addVertices(vertices);

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

			ofColor frame_color = ofColor(y < -100 ? 239 : ofMap(y, -100, 300, 239, 39));

			this->frame.addColor(frame_color);
			this->frame.addColor(frame_color);
			this->frame.addColor(frame_color);
			this->frame.addColor(frame_color);
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);

	this->frame.drawWireframe();

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 350;
	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);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->frame.clear();

for (auto y = -300; y < 300; y += 30) {

for (auto x = -600; x <= 600; x += 1) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(x, y, 0));

vertices.push_back(glm::vec3(x + 1, y, 0));

vertices.push_back(glm::vec3(x + 1, y, 100));

vertices.push_back(glm::vec3(x, y, 100));

for (auto& vertex : vertices) {

if (vertex.z == 100) {

auto noise_value = ofNoise(y * 0.005, vertex.x * 0.0025, vertex.y * 0.0025, ofGetFrameNum() * 0.005);

if (noise_value > 0.5) {

vertex.z = ofMap(noise_value, 0.5, 1, 0, 1000);

vertex.z *= ofMap(y, -300, 300, 0, 1);

vertex.z *= ofMap(abs(x), 0, 600, 1, 0);

}

else {

vertex.z = 0;

}

this->frame.addVertices(vertices);

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

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

ofColor frame_color = ofColor(y < -100 ? 239 : ofMap(y, -100, 300, 239, 39));

this->frame.addColor(frame_color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

this->frame.drawWireframe();

this->cam.end();

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

int start = 350;

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/d2a3b2111ec3e2f7f85f7501707631852ca21b28

2025年12月22日

Mountains.

[ Video ]

[ About ]
山々。

[ 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) {};

	ofEasyCam cam;
	ofMesh face, frame;
};

#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;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

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

	for (auto y = -300; y < 300; y += 30) {

		for (auto x = -600; x <= 600; x += 1) {

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(x, y, 0));
			vertices.push_back(glm::vec3(x + 1, y, 0));
			vertices.push_back(glm::vec3(x + 1, y, 100));
			vertices.push_back(glm::vec3(x, y, 100));

			for (auto& vertex : vertices) {

				if (vertex.z == 100) {

					auto noise_value = ofNoise(y * 0.05, vertex.x * 0.0025, vertex.y * 0.0025, ofGetFrameNum() * 0.005);
					if (noise_value > 0.5) {

						vertex.z = ofMap(noise_value, 0.5, 1, 0, 1000);
						vertex.z *= ofMap(y, -300, 300, 0, 1);
						vertex.z *= ofMap(abs(x), 0, 600, 1, 0);

						vertex.z = (int)vertex.z / 25 * 25;
					}
					else {

						vertex.z = 0;
					}
				}
			}

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

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

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

			ofColor face_color = ofColor(y < -100 ? 0 : ofMap(y, -100, 300, 0, 239));
			ofColor frame_color = ofColor(239);

			this->face.addColor(face_color);
			this->face.addColor(face_color);
			this->face.addColor(face_color);
			this->face.addColor(face_color);

			this->frame.addColor(frame_color);
			this->frame.addColor(frame_color);
			this->frame.addColor(frame_color);
			this->frame.addColor(frame_color);
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);

	this->face.draw();
	this->frame.drawWireframe();

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 350;
	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());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

for (auto y = -300; y < 300; y += 30) {

for (auto x = -600; x <= 600; x += 1) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(x, y, 0));

vertices.push_back(glm::vec3(x + 1, y, 0));

vertices.push_back(glm::vec3(x + 1, y, 100));

vertices.push_back(glm::vec3(x, y, 100));

for (auto& vertex : vertices) {

if (vertex.z == 100) {

auto noise_value = ofNoise(y * 0.05, vertex.x * 0.0025, vertex.y * 0.0025, ofGetFrameNum() * 0.005);

if (noise_value > 0.5) {

vertex.z = ofMap(noise_value, 0.5, 1, 0, 1000);

vertex.z *= ofMap(y, -300, 300, 0, 1);

vertex.z *= ofMap(abs(x), 0, 600, 1, 0);

vertex.z = (int)vertex.z / 25 * 25;

}

else {

vertex.z = 0;

}

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

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

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

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

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

ofColor face_color = ofColor(y < -100 ? 0 : ofMap(y, -100, 300, 0, 239));

ofColor frame_color = ofColor(239);

this->face.addColor(face_color);

this->frame.addColor(frame_color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

this->face.draw();

this->frame.drawWireframe();

this->cam.end();

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

int start = 350;

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/386c881fc11ba1fa4e270a8e92cb9f6542c07ea5

2025年12月
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