ofMesh – ページ 163 – プログラミング de 落描き

2020年10月15日

Y-axis rotation. Draw by openFrameworks

[ Video ]

[ About ]
Y軸回転。

Y-axis rotation.

[ 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;
};

#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;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	int deg_param = 15;
	int radius_span = 1;
	float noise_seed = ofRandom(1000);

	for (int deg_location = 0; deg_location < 360; deg_location += 90) {

		int start_index = this->frame.getNumVertices();
		for (int radius = 10; radius < 150; radius += radius_span) {

			int next_radius = radius + radius_span;
			int index = this->face.getNumVertices();

			float angle_y = ofMap(ofNoise(noise_seed, radius * 0.005 + ofGetFrameNum() * 0.008), 0, 1, PI * -1.5, PI * 1.5);
			auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

			float next_angle_y = ofMap(ofNoise(noise_seed, next_radius * 0.005 + ofGetFrameNum() * 0.008), 0, 1, PI * -1.5, PI * 1.5);
			auto next_rotation_y = glm::rotate(glm::mat4(), next_angle_y, glm::vec3(0, 1, 0));

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec4(radius * cos((deg_location + deg_param) * DEG_TO_RAD), radius * sin((deg_location + deg_param) * DEG_TO_RAD), 0, 0) * rotation_y);
			vertices.push_back(glm::vec4(radius * cos((deg_location - deg_param) * DEG_TO_RAD), radius * sin((deg_location - deg_param) * DEG_TO_RAD), 0, 0) * rotation_y);
			vertices.push_back(glm::vec4(next_radius * cos((deg_location - deg_param) * DEG_TO_RAD), next_radius * sin((deg_location - deg_param) * DEG_TO_RAD), 0, 0) * next_rotation_y);
			vertices.push_back(glm::vec4(next_radius * cos((deg_location + deg_param) * DEG_TO_RAD), next_radius * sin((deg_location + deg_param) * DEG_TO_RAD), 0, 0) * next_rotation_y);

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

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

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

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

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

	this->cam.begin();

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

	ofDrawSphere(5);

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

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int deg_param = 15;

int radius_span = 1;

float noise_seed = ofRandom(1000);

for (int deg_location = 0; deg_location < 360; deg_location += 90) {

int start_index = this->frame.getNumVertices();

for (int radius = 10; radius < 150; radius += radius_span) {

int next_radius = radius + radius_span;

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

float angle_y = ofMap(ofNoise(noise_seed, radius * 0.005 + ofGetFrameNum() * 0.008), 0, 1, PI * -1.5, PI * 1.5);

auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

float next_angle_y = ofMap(ofNoise(noise_seed, next_radius * 0.005 + ofGetFrameNum() * 0.008), 0, 1, PI * -1.5, PI * 1.5);

auto next_rotation_y = glm::rotate(glm::mat4(), next_angle_y, glm::vec3(0, 1, 0));

vector<glm::vec3> vertices;

vertices.push_back(glm::vec4(radius * cos((deg_location + deg_param) * DEG_TO_RAD), radius * sin((deg_location + deg_param) * DEG_TO_RAD), 0, 0) * rotation_y);

vertices.push_back(glm::vec4(radius * cos((deg_location - deg_param) * DEG_TO_RAD), radius * sin((deg_location - deg_param) * DEG_TO_RAD), 0, 0) * rotation_y);

vertices.push_back(glm::vec4(next_radius * cos((deg_location - deg_param) * DEG_TO_RAD), next_radius * sin((deg_location - deg_param) * DEG_TO_RAD), 0, 0) * next_rotation_y);

vertices.push_back(glm::vec4(next_radius * cos((deg_location + deg_param) * DEG_TO_RAD), next_radius * sin((deg_location + deg_param) * DEG_TO_RAD), 0, 0) * next_rotation_y);

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

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

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

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

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

}

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->face.draw();

ofDrawSphere(5);

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201015

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年10月14日

Revolving board. Draw by openFrameworks

[ Video ]

[ About ]
回転板。

Revolving board.

[ 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 height, float width, float depth);

	ofEasyCam cam;
	ofMesh face, frame;

	float noise_param;
};

#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 height, float width, float depth);

ofEasyCam cam;

ofMesh face, frame;

float noise_param;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();

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

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

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

	auto depth = 10;
	for (int x = -300; x <= 300; x += 60) {

		for (int y = -300; y <= 300; y += 60) {

			this->setBoxToMesh(this->face, this->frame, glm::vec3(x, y, 0), 60, 60, depth);
		}
	}
}

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

	this->cam.begin();

	ofSetColor(239);
	this->face.draw();

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

	this->cam.end();
}

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

	auto noise_value = glm::vec2(ofNoise(location.x * 0.002 + 300, ofGetFrameNum() * 0.004), ofNoise(location.y * 0.002 + 300, ofGetFrameNum() * 0.004));

	float angle_x = 0;
	if (noise_value.x > 0.3 && noise_value.x < 0.5) { angle_x = ofMap(noise_value.x, 0.3, 0.5, PI, 0); }
	if (noise_value.x > 0.5 && noise_value.x < 0.7) { angle_x = ofMap(noise_value.x, 0.5, 0.7, 0, PI); }
	
	float angle_y = 0;
	if (noise_value.y > 0.3 && noise_value.y < 0.5) { angle_y = ofMap(noise_value.y, 0.3, 0.5, PI, 0); }
	if (noise_value.y > 0.5 && noise_value.y < 0.7) { angle_y = ofMap(noise_value.y, 0.5, 0.7, 0, PI); }

	auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
	auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

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

	face_target.addVertex(location + glm::vec4(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99, 0) * rotation_y * rotation_x);
	face_target.addVertex(location + glm::vec4(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99, 0) * rotation_y * rotation_x);
	face_target.addVertex(location + glm::vec4(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99, 0) * rotation_y * rotation_x);
	face_target.addVertex(location + glm::vec4(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99, 0) * rotation_y * rotation_x);

	face_target.addVertex(location + glm::vec4(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99, 0) * rotation_y * rotation_x);
	face_target.addVertex(location + glm::vec4(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99, 0) * rotation_y * rotation_x);
	face_target.addVertex(location + glm::vec4(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99, 0) * rotation_y * rotation_x);
	face_target.addVertex(location + glm::vec4(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99, 0) * rotation_y * rotation_x);

	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::vec4(width * -0.5, height * 0.5, depth * -0.5, 0) * rotation_y * rotation_x);
	frame_target.addVertex(location + glm::vec4(width * 0.5, height * 0.5, depth * -0.5, 0) * rotation_y * rotation_x);
	frame_target.addVertex(location + glm::vec4(width * 0.5, height * 0.5, depth * 0.5, 0) * rotation_y * rotation_x);
	frame_target.addVertex(location + glm::vec4(width * -0.5, height * 0.5, depth * 0.5, 0) * rotation_y * rotation_x);

	frame_target.addVertex(location + glm::vec4(width * -0.5, height * -0.5, depth * -0.5, 0) * rotation_y * rotation_x);
	frame_target.addVertex(location + glm::vec4(width * 0.5, height * -0.5, depth * -0.5, 0) * rotation_y * rotation_x);
	frame_target.addVertex(location + glm::vec4(width * 0.5, height * -0.5, depth * 0.5, 0) * rotation_y * rotation_x);
	frame_target.addVertex(location + glm::vec4(width * -0.5, height * -0.5, depth * 0.5, 0) * rotation_y * rotation_x);

	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(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

auto depth = 10;

for (int x = -300; x <= 300; x += 60) {

for (int y = -300; y <= 300; y += 60) {

this->setBoxToMesh(this->face, this->frame, glm::vec3(x, y, 0), 60, 60, depth);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(239);

this->face.draw();

ofSetColor(39);

this->frame.drawWireframe();

this->cam.end();

}

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

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

auto noise_value = glm::vec2(ofNoise(location.x * 0.002 + 300, ofGetFrameNum() * 0.004), ofNoise(location.y * 0.002 + 300, ofGetFrameNum() * 0.004));

float angle_x = 0;

if (noise_value.x > 0.3 && noise_value.x < 0.5) { angle_x = ofMap(noise_value.x, 0.3, 0.5, PI, 0); }

if (noise_value.x > 0.5 && noise_value.x < 0.7) { angle_x = ofMap(noise_value.x, 0.5, 0.7, 0, PI); }

float angle_y = 0;

if (noise_value.y > 0.3 && noise_value.y < 0.5) { angle_y = ofMap(noise_value.y, 0.3, 0.5, PI, 0); }

if (noise_value.y > 0.5 && noise_value.y < 0.7) { angle_y = ofMap(noise_value.y, 0.5, 0.7, 0, PI); }

auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

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

face_target.addVertex(location + glm::vec4(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99, 0) * rotation_y * rotation_x);

face_target.addVertex(location + glm::vec4(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99, 0) * rotation_y * rotation_x);

face_target.addVertex(location + glm::vec4(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99, 0) * rotation_y * rotation_x);

face_target.addVertex(location + glm::vec4(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99, 0) * rotation_y * rotation_x);

face_target.addVertex(location + glm::vec4(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99, 0) * rotation_y * rotation_x);

face_target.addVertex(location + glm::vec4(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99, 0) * rotation_y * rotation_x);

face_target.addVertex(location + glm::vec4(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99, 0) * rotation_y * rotation_x);

face_target.addVertex(location + glm::vec4(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99, 0) * rotation_y * rotation_x);

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::vec4(width * -0.5, height * 0.5, depth * -0.5, 0) * rotation_y * rotation_x);

frame_target.addVertex(location + glm::vec4(width * 0.5, height * 0.5, depth * -0.5, 0) * rotation_y * rotation_x);

frame_target.addVertex(location + glm::vec4(width * 0.5, height * 0.5, depth * 0.5, 0) * rotation_y * rotation_x);

frame_target.addVertex(location + glm::vec4(width * -0.5, height * 0.5, depth * 0.5, 0) * rotation_y * rotation_x);

frame_target.addVertex(location + glm::vec4(width * -0.5, height * -0.5, depth * -0.5, 0) * rotation_y * rotation_x);

frame_target.addVertex(location + glm::vec4(width * 0.5, height * -0.5, depth * -0.5, 0) * rotation_y * rotation_x);

frame_target.addVertex(location + glm::vec4(width * 0.5, height * -0.5, depth * 0.5, 0) * rotation_y * rotation_x);

frame_target.addVertex(location + glm::vec4(width * -0.5, height * -0.5, depth * 0.5, 0) * rotation_y * rotation_x);

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/Insta20201014

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年10月13日2020年10月13日

Riging particle. Draw by openFrameworks

[ Video ]

[ About ]
Riging particle.

[ 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 mesh;
	vector<glm::vec3> location_list;
	vector<glm::vec3> direction_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) {};

ofEasyCam cam;

ofMesh mesh;

vector<glm::vec3> location_list;

vector<glm::vec3> direction_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();

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

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

	this->mesh.clear();

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

		this->location_list.push_back(glm::vec3());
		auto direction = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));
		direction = glm::normalize(direction) * 2;
		this->direction_list.push_back(direction);
	}

	for (int i = 0; i < this->location_list.size(); i++) {

		this->location_list[i] += this->direction_list[i];
	}

	for (int i = this->location_list.size() - 1; i >= 0; i--) {

		auto len = glm::length(this->location_list[i]);
		if (len > 300) {

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

		this->mesh.addVertex(this->location_list[i]);
		this->mesh.addColor(ofColor(39, ofMap(len, 0, 300, 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 < 50) {

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

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.43);
	ofRotateY(ofGetFrameNum() * 0.65);


	this->mesh.drawVertices();

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

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

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->mesh.clear();

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

this->location_list.push_back(glm::vec3());

auto direction = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));

direction = glm::normalize(direction) * 2;

this->direction_list.push_back(direction);

}

for (int i = 0; i < this->location_list.size(); i++) {

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

}

for (int i = this->location_list.size() - 1; i >= 0; i--) {

auto len = glm::length(this->location_list[i]);

if (len > 300) {

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

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

}

this->mesh.addVertex(this->location_list[i]);

this->mesh.addColor(ofColor(39, ofMap(len, 0, 300, 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 < 50) {

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.43);

ofRotateY(ofGetFrameNum() * 0.65);

this->mesh.drawVertices();

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

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

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

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201013

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