openFrameworks – ページ 322 – プログラミング de 落描き

2023年3月20日

Multi layer noise ameba. Draw by openFrameworks

[ Video ]

[ About ]
多層ノイズアメーバ。

[ 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) {};

	ofMesh mesh;
};

#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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(255);
}

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

	ofSeedRandom(39);

	this->mesh.clear();

	int span = 1;
	auto noise_seed = ofRandom(1000);
	for (int i = 0; i < 20; i++) {

		for (int x = 0; x < 720; x += span) {

			for (int y = 0; y < 720; y += span) {

				auto noise_value = ofNoise(noise_seed, x * 0.005, y * 0.005, i * 0.01 - ofGetFrameNum() * 0.005);
				if (noise_value <= 0.45 || noise_value >= 0.55) { continue; }

				this->mesh.addVertex(glm::vec3(x, y, i * 10));
				this->mesh.addVertex(glm::vec3(x + span, y, i * 10));
				this->mesh.addVertex(glm::vec3(x + span, y + span, i * 10));
				this->mesh.addVertex(glm::vec3(x, y + span, i * 10));

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

				ofColor color = ofColor(ofMap(i, -1, 20, 255, 0));
				for (int k = 0; k < 4; k++) {

					this->mesh.addColor(color);
				}
			}
		}
	}
}

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

	this->mesh.draw();

	ostringstream os;
	os << setw(4) << setfill('0') << ofGetFrameNum() + 1;
	ofImage image;
	image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
	image.saveImage("image/img_" + os.str() + ".jpg");
	if (ofGetFrameNum() + 1 >= 30 * 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(255);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

int span = 1;

auto noise_seed = ofRandom(1000);

for (int i = 0; i < 20; i++) {

for (int x = 0; x < 720; x += span) {

for (int y = 0; y < 720; y += span) {

auto noise_value = ofNoise(noise_seed, x * 0.005, y * 0.005, i * 0.01 - ofGetFrameNum() * 0.005);

if (noise_value <= 0.45 || noise_value >= 0.55) { continue; }

this->mesh.addVertex(glm::vec3(x, y, i * 10));

this->mesh.addVertex(glm::vec3(x + span, y, i * 10));

this->mesh.addVertex(glm::vec3(x + span, y + span, i * 10));

this->mesh.addVertex(glm::vec3(x, y + span, i * 10));

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

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

ofColor color = ofColor(ofMap(i, -1, 20, 255, 0));

for (int k = 0; k < 4; k++) {

this->mesh.addColor(color);

}

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

void ofApp::draw() {

this->mesh.draw();

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() + 1;

ofImage image;

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

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

if (ofGetFrameNum() + 1 >= 30 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230320

2023年3月19日

Multi-colored lines. Draw by openFrameworks

[ Video ]

[ About ]
いろんな色の線を束ねる。

[ 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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	float noise_value;
};

#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) {};

float noise_value;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->noise_value = ofRandom(1000);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	if (ofGetFrameNum() % 90 < 15) {

		this->noise_value += ofMap(ofGetFrameNum() % 30, 0, 15, 0.2, 0);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	
	for (int x = -360; x <= 360; x += 10) {

		for (int y = -360; y <= 360; y += 10) {

			vector<glm::vec2> vertices;
			vertices.push_back(glm::vec2(x, y));
			for (int i = 0; i < 50; i++) {

				auto deg = ofMap(ofNoise(vertices.back().x * 0.0015, vertices.back().y * 0.0015, this->noise_value), 0, 1, -360, 360);
				auto vertex = vertices.back() + glm::vec2(4 * cos(deg * DEG_TO_RAD), 4 * sin(deg * DEG_TO_RAD));
				vertices.push_back(vertex);
			}

			ofColor color;
			color.setHsb(ofRandom(0, 255), 255, 40);
			ofSetColor(color);

			ofNoFill();
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape();
		}
	}

	ostringstream os;
	os << setw(4) << setfill('0') << ofGetFrameNum();
	ofImage image;
	image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
	image.saveImage("image/img_" + os.str() + ".jpg");
	if (ofGetFrameNum() >= 30 * 20 + 1) {

		std::exit(1);
	}

	// > ffmpeg -i img_%04d.jpg -r 30 out.mp4
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(3);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->noise_value = ofRandom(1000);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 90 < 15) {

this->noise_value += ofMap(ofGetFrameNum() % 30, 0, 15, 0.2, 0);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (int x = -360; x <= 360; x += 10) {

for (int y = -360; y <= 360; y += 10) {

vector<glm::vec2> vertices;

vertices.push_back(glm::vec2(x, y));

for (int i = 0; i < 50; i++) {

auto deg = ofMap(ofNoise(vertices.back().x * 0.0015, vertices.back().y * 0.0015, this->noise_value), 0, 1, -360, 360);

auto vertex = vertices.back() + glm::vec2(4 * cos(deg * DEG_TO_RAD), 4 * sin(deg * DEG_TO_RAD));

vertices.push_back(vertex);

}

ofColor color;

color.setHsb(ofRandom(0, 255), 255, 40);

ofSetColor(color);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum();

ofImage image;

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

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

if (ofGetFrameNum() >= 30 * 20 + 1) {

std::exit(1);

}

// > ffmpeg -i img_%04d.jpg -r 30 out.mp4

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230319

2023年3月18日

Follow the lines. Draw by openFrameworks

[ Video ]

[ About ]
青い線を束ねる。

[ 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 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	
	ofSetColor(0, 7, 16);
	for (int x = -360; x <= 360; x += 15) {

		for (int y = -400; y <= 400; y += 15) {

			vector<glm::vec2> vertices;
			vertices.push_back(glm::vec2(x, y));
			for (int i = 0; i < 150; i++) {

				auto deg = ofMap(ofNoise(vertices.back().x * 0.00085, vertices.back().y * 0.00085 + ofGetFrameNum() * 0.005), 0, 1, -360, 360);
				auto vertex = vertices.back() + glm::vec2(2 * cos(deg * DEG_TO_RAD), 2 * sin(deg * DEG_TO_RAD));
				vertices.push_back(vertex);
			}

			ofNoFill();
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape();
		}
	}
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(3);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofSetColor(0, 7, 16);

for (int x = -360; x <= 360; x += 15) {

for (int y = -400; y <= 400; y += 15) {

vector<glm::vec2> vertices;

vertices.push_back(glm::vec2(x, y));

for (int i = 0; i < 150; i++) {

auto deg = ofMap(ofNoise(vertices.back().x * 0.00085, vertices.back().y * 0.00085 + ofGetFrameNum() * 0.005), 0, 1, -360, 360);

auto vertex = vertices.back() + glm::vec2(2 * cos(deg * DEG_TO_RAD), 2 * sin(deg * DEG_TO_RAD));

vertices.push_back(vertex);

}

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230318

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