Particle – プログラミング de 落描き

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

2020年9月1日2020年9月1日

Show enclosed particles. Draw by openFrameworks

[ Video ]

[ About ]
囲ったパーティクルを表示する。

Show enclosed particles.

[ 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);
	ofSetColor(39);
	ofSetLineWidth(3);
}

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

	ofSeedRandom(39);
}

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

	vector<glm::vec2> location_list;

	int span = 36;
	for(int x = span * 0.5; x < ofGetWidth(); x += span){

		for (int y = span * 0.5; y < ofGetHeight(); y += span) {

			location_list.push_back(glm::vec2(
				x + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, span * -0.4, span * 0.4),
				y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, span * -0.4, span * 0.4)));
		}
	}

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

		float max_alpha = 0;
		for (int k = 0; k < location_list.size(); k++) {

			if (i == k) { continue; }

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < span * 0.85) {

				vector<glm::vec2> vertices;
				auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);
				auto direction_deg = direction_rad * RAD_TO_DEG + 90;

				int radius = 8;
				for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

					vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

					vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);
				ofSetColor(39, alpha);
				ofNoFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				if (alpha > max_alpha) { max_alpha = alpha; }
			}
		}

		ofFill();
		ofSetColor(39, max_alpha);
		ofDrawCircle(location_list[i], 4);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

vector<glm::vec2> location_list;

int span = 36;

for(int x = span * 0.5; x < ofGetWidth(); x += span){

for (int y = span * 0.5; y < ofGetHeight(); y += span) {

location_list.push_back(glm::vec2(

x + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, span * -0.4, span * 0.4),

y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, span * -0.4, span * 0.4)));

}

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

float max_alpha = 0;

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < span * 0.85) {

vector<glm::vec2> vertices;

auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);

auto direction_deg = direction_rad * RAD_TO_DEG + 90;

int radius = 8;

for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);

ofSetColor(39, alpha);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (alpha > max_alpha) { max_alpha = alpha; }

}

ofFill();

ofSetColor(39, max_alpha);

ofDrawCircle(location_list[i], 4);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200901

2020年8月31日2020年8月31日

Surround near particle. Draw by openFrameworks

[ Video ]

[ About ]
近いパーティクルを囲う。

Surround near 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 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);
	ofSetColor(39);
	ofSetLineWidth(3);
}

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

	ofSeedRandom(39);
}

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

	vector<glm::vec2> location_list;

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

		location_list.push_back(glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, ofGetWidth())));
	}

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

		ofFill();
		ofDrawCircle(location_list[i], 10);
		for (int k = i + 1; k < location_list.size(); k++) {

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < 100) {

				vector<glm::vec2> vertices;
				auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);
				auto direction_deg = direction_rad * RAD_TO_DEG + 90;


				for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

					vertices.push_back(location_list[i] + glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)));
				}

				for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

					vertices.push_back(location_list[k] + glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)));
				}

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

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

vector<glm::vec2> location_list;

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

location_list.push_back(glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, ofGetWidth())));

}

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

ofFill();

ofDrawCircle(location_list[i], 10);

for (int k = i + 1; k < location_list.size(); k++) {

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < 100) {

vector<glm::vec2> vertices;

auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);

auto direction_deg = direction_rad * RAD_TO_DEG + 90;

for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

vertices.push_back(location_list[i] + glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)));

}

for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

vertices.push_back(location_list[k] + glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)));

}

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200831

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