Particle – ページ 6 – プログラミング de 落描き

2019年2月6日2019年2月6日

Wave of Noise. openFrameworks

[ Video ]

[ About ]
ノイズの波に点を取って、近いもの同士で線を引く。円のサイズは近くの点の数と連動

Point on the noise wave. And, drawing line each other with near point. Circle size is number of near points.

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(239);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	ofColor color(39);
	int radius = 320;

	vector<glm::vec2> locations;
	for (int i = 1; i <= 5; i++) {

		float noise_seed = ofRandom(1000);
		for (int x = 0; x <= ofGetWidth(); x += 10) {

			float y = ofMap(ofNoise(noise_seed, x * 0.0015 * i, ofGetFrameNum() * 0.003), 0, 1, ofGetHeight() * 0.1, ofGetHeight() * 0.9);
			locations.push_back(glm::vec2(x, y));
		}
	}

	for (auto location : locations) {

		bool draw_circle = false;
		float draw_radius = 1;
		float circle_alpha = 0;
		for (auto other : locations) {

			if (location == other) { continue; }

			auto distance = glm::distance(location, other);
			if (distance < 25) {

				float alpha = ofMap(distance, 0, 25, 255, 128);
				ofSetColor(color, alpha);

				ofDrawLine(location, other);

				if (circle_alpha < alpha) { circle_alpha = alpha; }
				draw_circle = true;
				draw_radius += 1.5;
			}
		}

		if (draw_circle) {

			ofSetColor(color, circle_alpha);
			ofDrawCircle(location, draw_radius);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofColor color(39);

int radius = 320;

vector<glm::vec2> locations;

for (int i = 1; i <= 5; i++) {

float noise_seed = ofRandom(1000);

for (int x = 0; x <= ofGetWidth(); x += 10) {

float y = ofMap(ofNoise(noise_seed, x * 0.0015 * i, ofGetFrameNum() * 0.003), 0, 1, ofGetHeight() * 0.1, ofGetHeight() * 0.9);

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

}

for (auto location : locations) {

bool draw_circle = false;

float draw_radius = 1;

float circle_alpha = 0;

for (auto other : locations) {

if (location == other) { continue; }

auto distance = glm::distance(location, other);

if (distance < 25) {

float alpha = ofMap(distance, 0, 25, 255, 128);

ofSetColor(color, alpha);

ofDrawLine(location, other);

if (circle_alpha < alpha) { circle_alpha = alpha; }

draw_circle = true;

draw_radius += 1.5;

}

if (draw_circle) {

ofSetColor(color, circle_alpha);

ofDrawCircle(location, draw_radius);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190206

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2019年2月2日2019年2月1日

Particles on sphere. openFrameworks

[ Video ]

[ About ]
球体上を移動するパーティクル。近づくと線が発生します

Particle on sphere. When approaching, a line is generated

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetColor(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.75);

	vector<glm::vec3> locations;
	for (int i = 0; i < 650; i++) {

		glm::vec3 random_point(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1),
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1), 
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1));

		int len = 50;
		if (i > 80) { len = 140; }
		if (i > 300) { len = 300; }
		
		random_point = glm::normalize(random_point) * len;
		locations.push_back(random_point);
	}

	for (int i = 0; i < locations.size(); i++) {

		ofDrawSphere(locations[i], 3);
		for (int j = i + 1; j < locations.size(); j++) {

			float length = glm::distance(locations[i], locations[j]);
			if (length < 30) {

				ofDrawLine(locations[i], locations[j]);
			}
		}
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetColor(239);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.75);

vector<glm::vec3> locations;

for (int i = 0; i < 650; i++) {

glm::vec3 random_point(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1),

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1),

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1));

int len = 50;

if (i > 80) { len = 140; }

if (i > 300) { len = 300; }

random_point = glm::normalize(random_point) * len;

locations.push_back(random_point);

}

for (int i = 0; i < locations.size(); i++) {

ofDrawSphere(locations[i], 3);

for (int j = i + 1; j < locations.size(); j++) {

float length = glm::distance(locations[i], locations[j]);

if (length < 30) {

ofDrawLine(locations[i], locations[j]);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190202

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Amazon

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2019年1月26日

Particle Systems. Proessing

[ Video ]

[ About ]
Processing部という勉強会グループで作成した課題

Particle System.

[ Source ]

ParticleSystem particleSystemR;
ParticleSystem particleSystemG;
ParticleSystem particleSystemB;

void setup()
{
  size(500, 500);

  particleSystemR = new ParticleSystem(new PVector(50, 50), new PVector(150, 150), color(255, 0, 0));
  particleSystemG = new ParticleSystem(new PVector(0, 250), new PVector(250, 250), color(0, 255, 0));
  particleSystemB = new ParticleSystem(new PVector(250, 0), new PVector(250, 500), color(0, 128, 255));
}

void draw()
{
  background(39);
  
  particleSystemR.run();
  particleSystemG.run();
  particleSystemB.run();
}

ParticleSystem particleSystemR;

ParticleSystem particleSystemG;

ParticleSystem particleSystemB;

void setup()

{

size(500, 500);

particleSystemR = new ParticleSystem(new PVector(50, 50), new PVector(150, 150), color(255, 0, 0));

particleSystemG = new ParticleSystem(new PVector(0, 250), new PVector(250, 250), color(0, 255, 0));

particleSystemB = new ParticleSystem(new PVector(250, 0), new PVector(250, 500), color(0, 128, 255));

}

void draw()

{

background(39);

particleSystemR.run();

particleSystemG.run();

particleSystemB.run();

}

class Particle
{
  PVector position;
  PVector velocity;
  color myColor;
  
  Particle(PVector position, color myColor)
  {
    this.position = position;
    this.velocity = new PVector(random(-1, 1), random(-1, 1));
    this.velocity = this.velocity.normalize().mult(random(3, 5));   
    this.myColor = myColor;
  }
  
  void update(PVector origin, PVector size)
  {    
    if(this.position.x < origin.x) { this.velocity.x *= -1; }
    if(this.position.x > origin.x + size.x) { this.velocity.x *= -1; }    
    if(this.position.y < origin.y) { this.velocity.y *= -1; }
    if(this.position.y > origin.y + size.y) { this.velocity.y *= -1; }
    
    this.position.add(this.velocity); 
  }
  
  void display()
  {
    stroke(239);
    fill(this.myColor);
    ellipse(this.position.x, this.position.y, 15, 15);
  }
}

class Particle

{

PVector position;

PVector velocity;

color myColor;

Particle(PVector position, color myColor)

{

this.position = position;

this.velocity = new PVector(random(-1, 1), random(-1, 1));

this.velocity = this.velocity.normalize().mult(random(3, 5));

this.myColor = myColor;

}

void update(PVector origin, PVector size)

{

if(this.position.x < origin.x) { this.velocity.x *= -1; }

if(this.position.x > origin.x + size.x) { this.velocity.x *= -1; }

if(this.position.y < origin.y) { this.velocity.y *= -1; }

if(this.position.y > origin.y + size.y) { this.velocity.y *= -1; }

this.position.add(this.velocity);

}

void display()

{

stroke(239);

fill(this.myColor);

ellipse(this.position.x, this.position.y, 15, 15);

}

class ParticleSystem
{
  ArrayList<Particle> particles;
  PVector position;
  PVector size;
  
  ParticleSystem(PVector position, PVector size, color particleColor)
  {
    this.position = position;
    this.size = size;
    this.particles = new ArrayList<Particle>();
    for(int i = 0; i < 15; i++)
    {
      PVector particlePosition = new PVector(random(position.x, position.x + size.x), random(position.y, position.y + size.y));      
      Particle particle = new Particle(particlePosition, particleColor);
      this.particles.add(particle);
    }
  }
  
  void run()
  {
    for(Particle particle : this.particles)
    {
      particle.update(this.position, this.size);
      particle.display();
    }
    
    stroke(255);
    noFill();
    rect(this.position.x, this.position.y, this.size.x, this.size.y);
  }
}

class ParticleSystem

{

ArrayList<Particle> particles;

PVector position;

PVector size;

ParticleSystem(PVector position, PVector size, color particleColor)

{

this.position = position;

this.size = size;

this.particles = new ArrayList<Particle>();

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

{

PVector particlePosition = new PVector(random(position.x, position.x + size.x), random(position.y, position.y + size.y));

Particle particle = new Particle(particlePosition, particleColor);

this.particles.add(particle);

}

void run()

{

for(Particle particle : this.particles)

{

particle.update(this.position, this.size);

particle.display();

}

stroke(255);

noFill();

rect(this.position.x, this.position.y, this.size.x, this.size.y);

}

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