openFrameworks – ページ 83 – プログラミング de 落描き

2025年1月9日

Disappearing ribbon.

[ Video ]

[ About ]
消えゆくリボン。

[ 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;
	ofMesh face, frame;

	glm::vec3 target_location, camera_location;
};

#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;

ofMesh face, frame;

glm::vec3 target_location, camera_location;

};

#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() {

	ofSeedRandom(39);

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

	frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	auto base_noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	this->camera_location = glm::vec3(
		ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
		ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
		ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

	this->target_location = glm::vec3(
		ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + 10) * 0.01), 0, 1, -500, 500),
		ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + 10) * 0.01), 0, 1, -500, 500),
		ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum() + 10) * 0.01), 0, 1, -500, 500));

	for (int k = 0; k < 24; k++) {

		auto param = glm::vec3(5, 0, 0);
		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		auto start_index = this->face.getNumVertices();

		ofColor color;
		for (int i = 0; i < 15; i++) {

			int index = this->face.getNumVertices();

			auto base_location = glm::vec3(
				ofMap(ofNoise(base_noise_seed.x, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
				ofMap(ofNoise(base_noise_seed.y, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
				ofMap(ofNoise(base_noise_seed.z, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

			auto location = glm::vec3(
				ofMap(ofNoise(noise_seed.x, (i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100),
				ofMap(ofNoise(noise_seed.y, (i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100),
				ofMap(ofNoise(noise_seed.z, (i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100));

			location += base_location;

			this->face.addVertex(location + param);
			this->face.addVertex(location - param);

			auto alpha = ofMap(i, 0, 15, 0, 255);
			color.setHsb(ofMap(k, 0, 24, 0, 255), 130, 255, alpha);

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

			this->frame.addVertex(location + param);
			this->frame.addVertex(location - param);

			this->frame.addColor(ofColor(39, alpha));
			this->frame.addColor(ofColor(39, alpha));

			if (i > 0) {

				this->face.addIndex(index + 0); this->face.addIndex(index - 1); this->face.addIndex(index - 2);
				this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index - 1);

				this->frame.addIndex(index + 0); this->frame.addIndex(index - 2);
				this->frame.addIndex(index + 1); this->frame.addIndex(index - 1);
			}
		}

		this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);
		this->frame.addIndex(frame.getNumVertices() - 1); this->frame.addIndex(frame.getNumVertices() - 2);
	}
}

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

	auto camera_location = this->camera_location + glm::vec3(0, 0, 500);

	this->cam.setPosition(camera_location);
	this->cam.setTarget(target_location);
	this->cam.lookAt(target_location);

	this->cam.begin();

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

	this->cam.end();

	/*
	int start = 100;
	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());
}

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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() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

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

this->camera_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

this->target_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + 10) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + 10) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum() + 10) * 0.01), 0, 1, -500, 500));

for (int k = 0; k < 24; k++) {

auto param = glm::vec3(5, 0, 0);

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

auto start_index = this->face.getNumVertices();

ofColor color;

for (int i = 0; i < 15; i++) {

int index = this->face.getNumVertices();

auto base_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.y, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.z, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, (i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100),

ofMap(ofNoise(noise_seed.y, (i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100),

ofMap(ofNoise(noise_seed.z, (i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100));

location += base_location;

this->face.addVertex(location + param);

this->face.addVertex(location - param);

auto alpha = ofMap(i, 0, 15, 0, 255);

color.setHsb(ofMap(k, 0, 24, 0, 255), 130, 255, alpha);

this->face.addColor(color);

this->frame.addVertex(location + param);

this->frame.addVertex(location - param);

this->frame.addColor(ofColor(39, alpha));

if (i > 0) {

this->face.addIndex(index + 0); this->face.addIndex(index - 1); this->face.addIndex(index - 2);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index - 1);

this->frame.addIndex(index + 0); this->frame.addIndex(index - 2);

this->frame.addIndex(index + 1); this->frame.addIndex(index - 1);

}

this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);

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

}

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

void ofApp::draw() {

auto camera_location = this->camera_location + glm::vec3(0, 0, 500);

this->cam.setPosition(camera_location);

this->cam.setTarget(target_location);

this->cam.lookAt(target_location);

this->cam.begin();

this->face.drawFaces();

this->frame.drawWireframe();

this->cam.end();

int start = 100;

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/Insta20250109

2025年1月8日

Noisy sphere.

[ Video ]

[ About ]
Noisy sphere.

[ 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;
	ofMesh mesh;
};

#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;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

	this->mesh.clear();

	auto radius = 250;
	for (int i = 0; i < 1500; i++) {

		auto phi_deg = ofRandom(360);
		auto theta_deg = (int)(ofRandom(180) + ofGetFrameNum() * 1) % 180;

		auto vertex = 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)
		);

		this->mesh.addVertex(vertex);
		this->mesh.addColor(ofColor(255, 0));
	}

	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 < 35) {

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

				auto alpha = ofMap(distance, 0, 35, 255, 0);

				if (alpha > this->mesh.getColor(i).a) {

					this->mesh.setColor(i, ofColor(255, alpha));
				}

				if (alpha > this->mesh.getColor(k).a) {

					this->mesh.setColor(k, ofColor(255, alpha));
				}
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum() * 0.36);

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

		ofSetColor(this->mesh.getColor(i));
		ofDrawSphere(this->mesh.getVertex(i), 2);
	}

	this->cam.end();
	
	/*
	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());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

auto radius = 250;

for (int i = 0; i < 1500; i++) {

auto phi_deg = ofRandom(360);

auto theta_deg = (int)(ofRandom(180) + ofGetFrameNum() * 1) % 180;

auto vertex = 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)

);

this->mesh.addVertex(vertex);

this->mesh.addColor(ofColor(255, 0));

}

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 < 35) {

this->mesh.addIndex(i);

this->mesh.addIndex(k);

auto alpha = ofMap(distance, 0, 35, 255, 0);

if (alpha > this->mesh.getColor(i).a) {

this->mesh.setColor(i, ofColor(255, alpha));

}

if (alpha > this->mesh.getColor(k).a) {

this->mesh.setColor(k, ofColor(255, alpha));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum() * 0.36);

this->mesh.drawWireframe();

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

ofSetColor(this->mesh.getColor(i));

ofDrawSphere(this->mesh.getVertex(i), 2);

}

this->cam.end();

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/Insta20250108

2025年1月7日

noisy sea.

[ Video ]

[ About ]
ノイズ海。

[ 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;
	ofMesh mesh;
};

#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;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(0);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

	this->mesh.clear();

	for (int i = 0; i < 000; i++) {

		auto x = ofRandom(-720, 720);
		auto y = (int)(ofRandom(720) + ofGetFrameNum() * ofRandom(3, 5)) % 1440;
		y -= 720;
		auto z = ofMap(ofNoise(x * 0.003, y * 0.003, ofGetFrameNum() * 0.01), 0, 1, 0, 150);

		this->mesh.addVertex(glm::vec3(x, y, z));
		this->mesh.addColor(ofColor(0, 0));
	}

	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 < 30) {

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

				auto alpha = ofMap(distance, 0, 30, 255, 0);

				if (alpha > this->mesh.getColor(i).a) {

					this->mesh.setColor(i, ofColor(0, alpha));
				}

				if (alpha > this->mesh.getColor(k).a) {

					this->mesh.setColor(k, ofColor(0, alpha));
				}
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(180);

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

		ofSetColor(this->mesh.getColor(i));
		ofDrawSphere(this->mesh.getVertex(i), 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(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(0);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

for (int i = 0; i < 000; i++) {

auto x = ofRandom(-720, 720);

auto y = (int)(ofRandom(720) + ofGetFrameNum() * ofRandom(3, 5)) % 1440;

y -= 720;

auto z = ofMap(ofNoise(x * 0.003, y * 0.003, ofGetFrameNum() * 0.01), 0, 1, 0, 150);

this->mesh.addVertex(glm::vec3(x, y, z));

this->mesh.addColor(ofColor(0, 0));

}

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 < 30) {

this->mesh.addIndex(i);

this->mesh.addIndex(k);

auto alpha = ofMap(distance, 0, 30, 255, 0);

if (alpha > this->mesh.getColor(i).a) {

this->mesh.setColor(i, ofColor(0, alpha));

}

if (alpha > this->mesh.getColor(k).a) {

this->mesh.setColor(k, ofColor(0, alpha));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

this->mesh.drawWireframe();

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

ofSetColor(this->mesh.getColor(i));

ofDrawSphere(this->mesh.getVertex(i), 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/Insta20250107

2025年9月
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