programming – ページ 442 – プログラミング de 落描き

2019年12月24日2019年12月24日

Missing character. openFrameworks

[ Video ]

[ About ]
虫食い文字。

Missing characters.

[ 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) {};

	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

	int span;
	ofEasyCam cam;
	vector<glm::vec2> location_list;
	ofMesh face_mesh, frame_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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

int span;

ofEasyCam cam;

vector<glm::vec2> location_list;

ofMesh face_mesh, frame_mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableDepthTest();

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofClear(0);
	ofSetColor(0);

	ofTrueTypeFont font;
	int font_size = 100;
	font.loadFont("fonts/Kazesawa-Bold.ttf", font_size, true, true, true);

	vector<char> charactors = {
		'A', 'B', 'C', 'D', 'E', 'F',
		'G', 'H', 'I', 'J', 'K', 'L',
		'M', 'N', 'O', 'P', 'Q', 'R',
		'S', 'T', 'U', 'V', 'W', 'X',
		'Y', 'Z', '!' };

	for (int char_index = 0; char_index < charactors.size(); char_index++) {

		ofPoint location = ofPoint(char_index % 6 * font_size * 1.2 + font_size * 0.7, char_index / 6 * font_size * 1.4 + font_size * 0.7);
		ofPushMatrix();
		ofTranslate(location);

		font.drawString(string{ charactors[char_index] }, font_size * -0.5, font_size * 0.5);

		ofPopMatrix();
	}

	fbo.end();

	this->span = 4;

	ofPixels pixels;
	fbo.readToPixels(pixels);
	for (int x = 0; x < fbo.getWidth(); x += this->span) {

		for (int y = 0; y < fbo.getHeight(); y += this->span) {

			ofColor color = pixels.getColor(x, y);
			if (color != ofColor(0, 0)) {

				this->location_list.push_back(glm::vec2(x - ofGetWidth() * 0.5, ofGetHeight() - y - ofGetWidth() * 0.5));
			}
		}
	}

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

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

	this->face_mesh.clear();
	this->frame_mesh.clear();

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

		for (int z = this->span * -2; z <= this->span * 2; z += this->span) {
		
			auto tmp_location = glm::vec3(location, z);
			auto noise_value = ofNoise(glm::vec4(tmp_location * 0.01, ofGetFrameNum() * 0.02));
			if (noise_value > 0.45) {

				this->setBoxToMesh(this->face_mesh, this->frame_mesh, tmp_location, this->span);
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(239);
	this->face_mesh.drawFaces();

	ofSetColor(39);
	this->frame_mesh.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size);
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth) {

	int index = face_target.getVertices().size();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addIndex(index + 0); face_target.addIndex(index + 1); face_target.addIndex(index + 2);
	face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 3);

	face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 6);
	face_target.addIndex(index + 4); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

	face_target.addIndex(index + 0); face_target.addIndex(index + 4); face_target.addIndex(index + 1);
	face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);

	face_target.addIndex(index + 1); face_target.addIndex(index + 5); face_target.addIndex(index + 6);
	face_target.addIndex(index + 6); face_target.addIndex(index + 2); face_target.addIndex(index + 1);

	face_target.addIndex(index + 2); face_target.addIndex(index + 6); face_target.addIndex(index + 7);
	face_target.addIndex(index + 7); face_target.addIndex(index + 3); face_target.addIndex(index + 2);

	face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);
	face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(index + 3);

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 1);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 0);

	frame_target.addIndex(index + 4); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 5); frame_target.addIndex(index + 6);
	frame_target.addIndex(index + 6); frame_target.addIndex(index + 7);
	frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 6);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 7);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

ofClear(0);

ofSetColor(0);

ofTrueTypeFont font;

int font_size = 100;

font.loadFont("fonts/Kazesawa-Bold.ttf", font_size, true, true, true);

vector<char> charactors = {

'A', 'B', 'C', 'D', 'E', 'F',

'G', 'H', 'I', 'J', 'K', 'L',

'M', 'N', 'O', 'P', 'Q', 'R',

'S', 'T', 'U', 'V', 'W', 'X',

'Y', 'Z', '!' };

for (int char_index = 0; char_index < charactors.size(); char_index++) {

ofPoint location = ofPoint(char_index % 6 * font_size * 1.2 + font_size * 0.7, char_index / 6 * font_size * 1.4 + font_size * 0.7);

ofPushMatrix();

ofTranslate(location);

font.drawString(string{ charactors[char_index] }, font_size * -0.5, font_size * 0.5);

ofPopMatrix();

}

fbo.end();

this->span = 4;

ofPixels pixels;

fbo.readToPixels(pixels);

for (int x = 0; x < fbo.getWidth(); x += this->span) {

for (int y = 0; y < fbo.getHeight(); y += this->span) {

ofColor color = pixels.getColor(x, y);

if (color != ofColor(0, 0)) {

this->location_list.push_back(glm::vec2(x - ofGetWidth() * 0.5, ofGetHeight() - y - ofGetWidth() * 0.5));

}

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

}

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

void ofApp::update() {

this->face_mesh.clear();

this->frame_mesh.clear();

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

for (int z = this->span * -2; z <= this->span * 2; z += this->span) {

auto tmp_location = glm::vec3(location, z);

auto noise_value = ofNoise(glm::vec4(tmp_location * 0.01, ofGetFrameNum() * 0.02));

if (noise_value > 0.45) {

this->setBoxToMesh(this->face_mesh, this->frame_mesh, tmp_location, this->span);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(239);

this->face_mesh.drawFaces();

ofSetColor(39);

this->frame_mesh.drawWireframe();

this->cam.end();

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size);

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth) {

int index = face_target.getVertices().size();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addIndex(index + 0); face_target.addIndex(index + 1); face_target.addIndex(index + 2);

face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 3);

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 6);

face_target.addIndex(index + 4); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

face_target.addIndex(index + 0); face_target.addIndex(index + 4); face_target.addIndex(index + 1);

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);

face_target.addIndex(index + 1); face_target.addIndex(index + 5); face_target.addIndex(index + 6);

face_target.addIndex(index + 6); face_target.addIndex(index + 2); face_target.addIndex(index + 1);

face_target.addIndex(index + 2); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

face_target.addIndex(index + 7); face_target.addIndex(index + 3); face_target.addIndex(index + 2);

face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

frame_target.addIndex(index + 0); frame_target.addIndex(index + 1);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);

frame_target.addIndex(index + 3); frame_target.addIndex(index + 0);

frame_target.addIndex(index + 4); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 5); frame_target.addIndex(index + 6);

frame_target.addIndex(index + 6); frame_target.addIndex(index + 7);

frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 6);

frame_target.addIndex(index + 3); frame_target.addIndex(index + 7);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191224

2019年12月23日

Line of noise. openFrameworks

[ Video ]

[ About ]
近い点同士をつなぐノイズ由来の線。

Line of noise.

[ 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) {};

	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);

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

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

	ofSeedRandom(39);
	this->mesh.clear();

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

		auto noise_seed = ofRandom(1000);
		for (int x = 0; x <= ofGetWidth(); x += 3) {

			auto y = ofMap(ofNoise(noise_seed, x * 0.003, ofGetFrameNum() * 0.003), 0, 1, 0, ofGetHeight());
			this->mesh.addVertex(glm::vec3(x, y, 0));
	
			if (x > 0) {

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

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

		for (int k = i + 2; k < this->mesh.getNumVertices(); k++) {

			if (glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k)) < 35) {

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

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

	this->mesh.drawWireframe();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

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

auto noise_seed = ofRandom(1000);

for (int x = 0; x <= ofGetWidth(); x += 3) {

auto y = ofMap(ofNoise(noise_seed, x * 0.003, ofGetFrameNum() * 0.003), 0, 1, 0, ofGetHeight());

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

if (x > 0) {

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

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

}

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

for (int k = i + 2; k < this->mesh.getNumVertices(); k++) {

if (glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k)) < 35) {

this->mesh.addIndex(i);

this->mesh.addIndex(k);

}

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

void ofApp::draw() {

this->mesh.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191223

2019年12月22日

Pillars. openFrameworks

[ Video ]

[ About ]
柱たち。

Pillars.

[ 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_mesh, frame_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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofMesh face_mesh, frame_mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableDepthTest();

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

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

	this->face_mesh.clear();
	this->frame_mesh.clear();

	int radius_span = 10;
	int deg_span = 8;
	for (int radius = 100; radius < 300; radius += radius_span * 4) {

		for (int deg_start = 0; deg_start < 360; deg_start += deg_span) {

			auto noise_seed = glm::vec2((300 - radius) * cos(deg_start * DEG_TO_RAD), (300 - radius) * sin(deg_start * DEG_TO_RAD));
			auto noise_value = ofNoise(glm::vec3(noise_seed * 0.01, ofGetFrameNum() * 0.005));
			auto z = ofMap(noise_value, 0, 1, -radius, radius);
			int param_index = this->face_mesh.getNumVertices();
			for (int deg = deg_start; deg < deg_start + deg_span; deg++) {

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

				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));
				vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), z));
				vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), z));
				vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));

				vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));

				this->face_mesh.addVertices(vertices);

				this->face_mesh.addIndex(index + 0);	this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 2);
				this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 3);

				this->face_mesh.addIndex(index + 4);	this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6);
				this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 6); this->face_mesh.addIndex(index + 7);

				this->face_mesh.addIndex(index + 0);	this->face_mesh.addIndex(index + 3); this->face_mesh.addIndex(index + 7);
				this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 7);

				this->face_mesh.addIndex(index + 1);	this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 6);
				this->face_mesh.addIndex(index + 1);	this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6);

				this->frame_mesh.addVertices(vertices);

				this->frame_mesh.addIndex(index + 0); this->frame_mesh.addIndex(index + 3);
				this->frame_mesh.addIndex(index + 4); this->frame_mesh.addIndex(index + 7);

				this->frame_mesh.addIndex(index + 1); this->frame_mesh.addIndex(index + 2);
				this->frame_mesh.addIndex(index + 5); this->frame_mesh.addIndex(index + 6);
			}

			this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 1); this->face_mesh.addIndex(param_index + 5);
			this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 4); this->face_mesh.addIndex(param_index + 5);

			this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 1);
			this->frame_mesh.addIndex(param_index + 4); this->frame_mesh.addIndex(param_index + 5);

			this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 4);
			this->frame_mesh.addIndex(param_index + 1); this->frame_mesh.addIndex(param_index + 5);

			param_index = this->face_mesh.getNumVertices() - 8;

			this->face_mesh.addIndex(param_index + 2); this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6);
			this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6); this->face_mesh.addIndex(param_index + 7);

			this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 3);
			this->frame_mesh.addIndex(param_index + 6); this->frame_mesh.addIndex(param_index + 7);

			this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 6);
			this->frame_mesh.addIndex(param_index + 3); this->frame_mesh.addIndex(param_index + 7);
		}
	}
}

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

	this->cam.begin();
	ofRotateZ(ofGetFrameNum() * 0.5);

	ofSetColor(39);
	this->face_mesh.draw();

	ofSetColor(239);
	this->frame_mesh.drawWireframe();

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face_mesh.clear();

this->frame_mesh.clear();

int radius_span = 10;

int deg_span = 8;

for (int radius = 100; radius < 300; radius += radius_span * 4) {

for (int deg_start = 0; deg_start < 360; deg_start += deg_span) {

auto noise_seed = glm::vec2((300 - radius) * cos(deg_start * DEG_TO_RAD), (300 - radius) * sin(deg_start * DEG_TO_RAD));

auto noise_value = ofNoise(glm::vec3(noise_seed * 0.01, ofGetFrameNum() * 0.005));

auto z = ofMap(noise_value, 0, 1, -radius, radius);

int param_index = this->face_mesh.getNumVertices();

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

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));

vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), z));

vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));

this->face_mesh.addVertices(vertices);

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

this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 3);

this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6);

this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 6); this->face_mesh.addIndex(index + 7);

this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 3); this->face_mesh.addIndex(index + 7);

this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 7);

this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 6);

this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6);

this->frame_mesh.addVertices(vertices);

this->frame_mesh.addIndex(index + 0); this->frame_mesh.addIndex(index + 3);

this->frame_mesh.addIndex(index + 4); this->frame_mesh.addIndex(index + 7);

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

this->frame_mesh.addIndex(index + 5); this->frame_mesh.addIndex(index + 6);

}

this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 1); this->face_mesh.addIndex(param_index + 5);

this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 4); this->face_mesh.addIndex(param_index + 5);

this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 1);

this->frame_mesh.addIndex(param_index + 4); this->frame_mesh.addIndex(param_index + 5);

this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 4);

this->frame_mesh.addIndex(param_index + 1); this->frame_mesh.addIndex(param_index + 5);

param_index = this->face_mesh.getNumVertices() - 8;

this->face_mesh.addIndex(param_index + 2); this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6);

this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6); this->face_mesh.addIndex(param_index + 7);

this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 3);

this->frame_mesh.addIndex(param_index + 6); this->frame_mesh.addIndex(param_index + 7);

this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 6);

this->frame_mesh.addIndex(param_index + 3); this->frame_mesh.addIndex(param_index + 7);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(ofGetFrameNum() * 0.5);

ofSetColor(39);

this->face_mesh.draw();

ofSetColor(239);

this->frame_mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191222

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