Particle – ページ 17 – プログラミング de 落描き

2018年7月10日2018年7月10日

キラキラCircle openFrameworks

[ Video ]

[ About ]
コード書いてる途中で書き間違えたんですが、なんか綺麗だったので良しとしよう。

I made a mistake in writing the source code, but it was beautiful.

[ 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(60);
	ofSetWindowTitle("Insta");

	ofBackground(39);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	for (int i = 0; i < 256; i++) {

		ofPoint point(ofMap(ofNoise(ofRandom(100) + ofGetFrameNum() * 0.005), 0, 1, ofGetWidth() * -0.3, ofGetWidth() * 1.3), ofMap(ofNoise(ofRandom(100) + ofGetFrameNum() * 0.001), 0, 1, ofGetHeight() * -0.3, ofGetHeight() * 1.3));
		float radius = ofRandom(5, 20);
		ofColor circle_color;
		circle_color.setHsb(ofRandom(255), 255, 255 * ofNoise(point.x * 0.05, point.y * 0.05, ofGetFrameNum() * 0.001));
		ofSetColor(circle_color);

		ofDrawCircle(point, radius);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int i = 0; i < 256; i++) {

ofPoint point(ofMap(ofNoise(ofRandom(100) + ofGetFrameNum() * 0.005), 0, 1, ofGetWidth() * -0.3, ofGetWidth() * 1.3), ofMap(ofNoise(ofRandom(100) + ofGetFrameNum() * 0.001), 0, 1, ofGetHeight() * -0.3, ofGetHeight() * 1.3));

float radius = ofRandom(5, 20);

ofColor circle_color;

circle_color.setHsb(ofRandom(255), 255, 255 * ofNoise(point.x * 0.05, point.y * 0.05, ofGetFrameNum() * 0.001));

ofSetColor(circle_color);

ofDrawCircle(point, radius);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180710

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2018年6月18日2018年6月19日

シルエット on ライン openFrameworks

[ Video ]

[ About ]
動物(犬-Dog, やもり-Gecko, こうもり-Bat)のシルエットにお互いを結ぶ座標を置きました。

[ 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) {};

	vector<ofImage> images;
	int images_index;
	ofPixels pix;
};

#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) {};

vector<ofImage> images;

int images_index;

ofPixels pix;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(39);
	ofSetWindowTitle("Insta");

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	
	ofImage image_gecko;
	image_gecko.load("images/gecko.png");
	ofImage image_dog;
	image_dog.load("images/dog.png");
	ofImage image_bat;
	image_bat.load("images/bat.png");

	this->images.push_back(image_gecko);
	this->images.push_back(image_dog);
	this->images.push_back(image_bat);

	this->images_index = -1;
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 180 == 0) {

		this->images_index = (this->images_index + 1) % this->images.size();
		this->pix = this->images[this->images_index].getPixelsRef();
	}
}

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

	ofTranslate((ofGetWidth() - this->images[this->images_index].getWidth()) * 0.5, (ofGetHeight() - this->images[this->images_index].getHeight()) * 0.5);

	int number_of_circle = 550;
	vector<ofPoint> points;
	while (points.size() < number_of_circle) {

		int x = ofRandom(this->images[this->images_index].getWidth());
		int y = ofRandom(this->images[this->images_index].getHeight());

		ofColor pix_color = this->pix.getColor(x, y);
		if (pix_color != ofColor(0)) {

			continue;
		}

		float x_increase = ofMap(ofNoise(ofRandom(number_of_circle), ofGetFrameNum() * 0.005), 0, 1, -10, 10);
		float y_increase = ofMap(ofNoise(ofRandom(number_of_circle), ofGetFrameNum() * 0.005), 0, 1, -10, 10);
		x += x_increase;
		y += y_increase;

		points.push_back(ofPoint(x, y));
	}

	ofColor color;
	for (int i = 0; i < points.size(); i++) {

		color.setHsb(ofRandom(255), 255, 255);
		ofSetColor(color);
		ofDrawCircle(points[i], 3);

		for (int j = 0; j < points.size(); j++) {

			float distance = points[i].distance(points[j]);
			if (distance < 50) {

				ofSetColor(color, ofMap(distance, 0, 50, 255, 0));
				ofDrawLine(points[i], points[j]);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofImage image_gecko;

image_gecko.load("images/gecko.png");

ofImage image_dog;

image_dog.load("images/dog.png");

ofImage image_bat;

image_bat.load("images/bat.png");

this->images.push_back(image_gecko);

this->images.push_back(image_dog);

this->images.push_back(image_bat);

this->images_index = -1;

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 180 == 0) {

this->images_index = (this->images_index + 1) % this->images.size();

this->pix = this->images[this->images_index].getPixelsRef();

}

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

void ofApp::draw() {

ofTranslate((ofGetWidth() - this->images[this->images_index].getWidth()) * 0.5, (ofGetHeight() - this->images[this->images_index].getHeight()) * 0.5);

int number_of_circle = 550;

vector<ofPoint> points;

while (points.size() < number_of_circle) {

int x = ofRandom(this->images[this->images_index].getWidth());

int y = ofRandom(this->images[this->images_index].getHeight());

ofColor pix_color = this->pix.getColor(x, y);

if (pix_color != ofColor(0)) {

continue;

}

float x_increase = ofMap(ofNoise(ofRandom(number_of_circle), ofGetFrameNum() * 0.005), 0, 1, -10, 10);

float y_increase = ofMap(ofNoise(ofRandom(number_of_circle), ofGetFrameNum() * 0.005), 0, 1, -10, 10);

x += x_increase;

y += y_increase;

points.push_back(ofPoint(x, y));

}

ofColor color;

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

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

ofSetColor(color);

ofDrawCircle(points[i], 3);

for (int j = 0; j < points.size(); j++) {

float distance = points[i].distance(points[j]);

if (distance < 50) {

ofSetColor(color, ofMap(distance, 0, 50, 255, 0));

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180618

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2018年5月15日2018年5月15日

箱の中のパーティクル openFrameworks ofxBullet

[ Video ]

[ About ]
お互いに反発するパーティクルを箱に閉じ込めました。普段は見えませんが、お互いが近づくと姿を現します。その性質により箱へ干渉する事で一斉に姿を現します。

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBullet.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) {};

	ofCamera cam;
	ofxBulletWorldRigid world;

	unique_ptr<ofxBulletCustomShape> bounds_shape;
	vector<unique_ptr<ofxBulletSphere>> spheres;
};

#pragma once

#include "ofMain.h"

#include "ofxBullet.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) {};

ofCamera cam;

ofxBulletWorldRigid world;

unique_ptr<ofxBulletCustomShape> bounds_shape;

vector<unique_ptr<ofxBulletSphere>> spheres;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(39);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();

	// Initialize ofxBulletWorld
	this->cam.setPosition(ofVec3f(0, 3.f, -30.f));
	this->cam.lookAt(ofVec3f(0, 0, 0), ofVec3f(0, -1, 0));
	this->world.setup();
	this->world.enableGrabbing();
	this->world.setCamera(&this->cam);
	this->world.setGravity(ofVec3f());

	// Create Big Box
	ofVec3f start_location;
	ofPoint dimens;
	float bounds_width = 400;
	float h_width = bounds_width * 0.5;
	float depth = 10.;
	float h_depth = depth * 0.5;
	this->bounds_shape.reset(new ofxBulletCustomShape());
	this->bounds_shape->create(world.world, ofVec3f(0, 0, 0), 10.);
	for (int i = 0; i < 6; i++) {
		if (i == 0) { // ground //
			start_location.set(0., h_width + h_depth, 0.);
			dimens.set(bounds_width, depth, bounds_width);
		}
		else if (i == 1) { // back wall //
			start_location.set(0, 0, h_width + h_depth);
			dimens.set(bounds_width, bounds_width, depth);
		}
		else if (i == 2) { // right wall //
			start_location.set(h_width + h_depth, 0, 0.);
			dimens.set(depth, bounds_width, bounds_width);
		}
		else if (i == 3) { // left wall //
			start_location.set(-h_width - h_depth, 0, 0.);
			dimens.set(depth, bounds_width, bounds_width);
		}
		else if (i == 4) { // ceiling //
			start_location.set(0, -h_width - h_depth, 0.);
			dimens.set(bounds_width, depth, bounds_width);
		}
		else if (i == 5) { // front wall //
			start_location.set(0, 0, -h_width - h_depth);
			dimens.set(bounds_width, bounds_width, depth);
		}
		btBoxShape* boxShape = ofBtGetBoxCollisionShape(dimens.x, dimens.y, dimens.z);
		this->bounds_shape->addShape(boxShape, start_location);
	}
	this->bounds_shape->add();

	// Create Spheres
	for (int i = 0; i < 255; i++) {

		unique_ptr<ofxBulletSphere> sphere(new ofxBulletSphere);
		float size = 5;
		sphere->create(this->world.world, ofVec3f(ofRandom(-100, 100), ofRandom(-100, 100), ofRandom(-100, 100)), 1, size);
		sphere->setRestitution(1.0);
		sphere->add();
		this->spheres.push_back(move(sphere));
	}
}

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

	// Big Box Moving To Center 
	if (!ofGetMousePressed()) {

		ofVec3f diff = ofVec3f(0, 0, 0) - bounds_shape->getPosition();
		diff *= 500.f;
		bounds_shape->applyCentralForce(diff);
	}

	// Compute Spheres Relation
	for (int i = 0; i < this->spheres.size(); i++) {

		for (int j = i + 1; j < this->spheres.size(); j++) {

			float distance = this->spheres[i]->getPosition().distance(this->spheres[j]->getPosition());
			if (distance < 80) {

				ofVec3f diff = this->spheres[i]->getPosition() - this->spheres[j]->getPosition();
				ofMap(distance, 0, 50, 40, -2);
				this->spheres[i]->applyCentralForce(diff);
				this->spheres[j]->applyCentralForce(-diff);
			}
		}
	}

	this->world.update();
}

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

	ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

	// Draw Big Box
	ofNoFill();
	if (ofGetMousePressed()) {

		ofSetColor(39, 39, 239);
	}
	else {

		ofSetColor(239);
	}
	bounds_shape->transformGL();
	ofDrawBox(ofVec3f(0, 0, 0), 400);
	bounds_shape->restoreTransformGL();

	// Draw Sphere
	ofFill();
	for (int i = 0; i < this->spheres.size(); i++) {

		for (int j = i + 1; j < this->spheres.size(); j++) {

			float distance = this->spheres[i]->getPosition().distance(this->spheres[j]->getPosition());
			if (distance < 30) {

				ofSetColor(239);
				ofDrawLine(this->spheres[i]->getPosition(), this->spheres[j]->getPosition());
				ofDrawSphere(this->spheres[i]->getPosition(), this->spheres[i]->getRadius());
				ofDrawSphere(this->spheres[j]->getPosition(), this->spheres[j]->getRadius());
			}
			else if (distance < 60) {

				ofSetColor(239, ofMap(distance, 30, 60, 255, 0));
				ofDrawLine(this->spheres[i]->getPosition(), this->spheres[j]->getPosition());
				ofDrawSphere(this->spheres[i]->getPosition(), this->spheres[i]->getRadius());
				ofDrawSphere(this->spheres[j]->getPosition(), this->spheres[j]->getRadius());
			}
		}
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

// Initialize ofxBulletWorld

this->cam.setPosition(ofVec3f(0, 3.f, -30.f));

this->cam.lookAt(ofVec3f(0, 0, 0), ofVec3f(0, -1, 0));

this->world.setup();

this->world.enableGrabbing();

this->world.setCamera(&this->cam);

this->world.setGravity(ofVec3f());

// Create Big Box

ofVec3f start_location;

ofPoint dimens;

float bounds_width = 400;

float h_width = bounds_width * 0.5;

float depth = 10.;

float h_depth = depth * 0.5;

this->bounds_shape.reset(new ofxBulletCustomShape());

this->bounds_shape->create(world.world, ofVec3f(0, 0, 0), 10.);

for (int i = 0; i < 6; i++) {

if (i == 0) { // ground //

start_location.set(0., h_width + h_depth, 0.);

dimens.set(bounds_width, depth, bounds_width);

}

else if (i == 1) { // back wall //

start_location.set(0, 0, h_width + h_depth);

dimens.set(bounds_width, bounds_width, depth);

}

else if (i == 2) { // right wall //

start_location.set(h_width + h_depth, 0, 0.);

dimens.set(depth, bounds_width, bounds_width);

}

else if (i == 3) { // left wall //

start_location.set(-h_width - h_depth, 0, 0.);

dimens.set(depth, bounds_width, bounds_width);

}

else if (i == 4) { // ceiling //

start_location.set(0, -h_width - h_depth, 0.);

dimens.set(bounds_width, depth, bounds_width);

}

else if (i == 5) { // front wall //

start_location.set(0, 0, -h_width - h_depth);

dimens.set(bounds_width, bounds_width, depth);

}

btBoxShape* boxShape = ofBtGetBoxCollisionShape(dimens.x, dimens.y, dimens.z);

this->bounds_shape->addShape(boxShape, start_location);

}

this->bounds_shape->add();

// Create Spheres

for (int i = 0; i < 255; i++) {

unique_ptr<ofxBulletSphere> sphere(new ofxBulletSphere);

float size = 5;

sphere->create(this->world.world, ofVec3f(ofRandom(-100, 100), ofRandom(-100, 100), ofRandom(-100, 100)), 1, size);

sphere->setRestitution(1.0);

sphere->add();

this->spheres.push_back(move(sphere));

}

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

void ofApp::update() {

// Big Box Moving To Center

if (!ofGetMousePressed()) {

ofVec3f diff = ofVec3f(0, 0, 0) - bounds_shape->getPosition();

diff *= 500.f;

bounds_shape->applyCentralForce(diff);

}

// Compute Spheres Relation

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

for (int j = i + 1; j < this->spheres.size(); j++) {

float distance = this->spheres[i]->getPosition().distance(this->spheres[j]->getPosition());

if (distance < 80) {

ofVec3f diff = this->spheres[i]->getPosition() - this->spheres[j]->getPosition();

ofMap(distance, 0, 50, 40, -2);

this->spheres[i]->applyCentralForce(diff);

this->spheres[j]->applyCentralForce(-diff);

}

this->world.update();

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

// Draw Big Box

ofNoFill();

if (ofGetMousePressed()) {

ofSetColor(39, 39, 239);

}

else {

ofSetColor(239);

}

bounds_shape->transformGL();

ofDrawBox(ofVec3f(0, 0, 0), 400);

bounds_shape->restoreTransformGL();

// Draw Sphere

ofFill();

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

for (int j = i + 1; j < this->spheres.size(); j++) {

float distance = this->spheres[i]->getPosition().distance(this->spheres[j]->getPosition());

if (distance < 30) {

ofSetColor(239);

ofDrawLine(this->spheres[i]->getPosition(), this->spheres[j]->getPosition());

ofDrawSphere(this->spheres[i]->getPosition(), this->spheres[i]->getRadius());

ofDrawSphere(this->spheres[j]->getPosition(), this->spheres[j]->getRadius());

}

else if (distance < 60) {

ofSetColor(239, ofMap(distance, 30, 60, 255, 0));

ofDrawLine(this->spheres[i]->getPosition(), this->spheres[j]->getPosition());

ofDrawSphere(this->spheres[i]->getPosition(), this->spheres[i]->getRadius());

ofDrawSphere(this->spheres[j]->getPosition(), this->spheres[j]->getRadius());

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180515

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