プログラミング de 落描き – ページ 826 – クリエイティブ・コーディングによる生成物とソース

2018年9月26日2018年9月26日

Light particles. openFrameworks

[ Video ]

[ About ]
光る円をパーリンノイズを使って移動。同じ大きさの円が1グループで12個あるんだけど、グループが一つの大きな塊みたいに見えて面白い。

Light particles. One group have twelve circles.

[ 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) {};

	int number_of_targets;
	vector<glm::vec2> targets;
	ofShader shader;
};

#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) {};

int number_of_targets;

vector<glm::vec2> targets;

ofShader shader;

};

#include "ofApp.h"

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

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

	this->number_of_targets = 48;
	for (int i = 0; i < this->number_of_targets; i++) {

		this->targets.push_back(glm::vec2());
	}

	this->shader.load("shader/shader.vert", "shader/shader.frag");
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
	float x_seed, y_seed;

	for (int i = 0; i < this->number_of_targets; i++) {

		if (i % 12 == 0) {

			x_seed = ofRandom(100);
			y_seed = ofRandom(100);
		}

		int x_base = (i / 24) * 360;
		int y_base = ((i / 12) % 2) * 360;

		int x = ofMap(ofNoise(x_seed, (ofGetFrameNum() + i) * 0.03), 0, 1, x_base, x_base + 360);
		int y = ofMap(ofNoise(y_seed, (ofGetFrameNum() + i) * 0.03), 0, 1, y_base, y_base + 360);

		this->targets[i] = glm::vec2(x, y);
	}
}

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

	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniform2fv("targets", &this->targets[0].x, this->number_of_targets);

	ofDrawRectangle(0, 0, ofGetWidth(), ofGetHeight());

	this->shader.end();
}

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

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(720, 720);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

this->number_of_targets = 48;

for (int i = 0; i < this->number_of_targets; i++) {

this->targets.push_back(glm::vec2());

}

this->shader.load("shader/shader.vert", "shader/shader.frag");

}

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

void ofApp::update() {

ofSeedRandom(39);

float x_seed, y_seed;

for (int i = 0; i < this->number_of_targets; i++) {

if (i % 12 == 0) {

x_seed = ofRandom(100);

y_seed = ofRandom(100);

}

int x_base = (i / 24) * 360;

int y_base = ((i / 12) % 2) * 360;

int x = ofMap(ofNoise(x_seed, (ofGetFrameNum() + i) * 0.03), 0, 1, x_base, x_base + 360);

int y = ofMap(ofNoise(y_seed, (ofGetFrameNum() + i) * 0.03), 0, 1, y_base, y_base + 360);

this->targets[i] = glm::vec2(x, y);

}

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

void ofApp::draw() {

this->shader.begin();

this->shader.setUniform1f("time", ofGetElapsedTimef());

this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());

this->shader.setUniform2fv("targets", &this->targets[0].x, this->number_of_targets);

ofDrawRectangle(0, 0, ofGetWidth(), ofGetHeight());

this->shader.end();

}

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

int main() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(720, 720);

ofCreateWindow(settings);

ofRunApp(new ofApp());

}

#version 150

uniform mat4 modelViewProjectionMatrix;
in vec4 position;

void main(){
	gl_Position = modelViewProjectionMatrix * position;
}

#version 150

uniform mat4 modelViewProjectionMatrix;

in vec4 position;

void main(){

gl_Position = modelViewProjectionMatrix * position;

}

#version 150

const int number_of_targets = 48;

uniform float time;
uniform vec2 resolution;
uniform vec2 targets[number_of_targets];

out vec4 outputColor;

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);
  vec3 color = vec3(0.0);
  for(int i = 0; i < number_of_targets; i++){

    vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;
    t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

    float v = 0.02 / length(p - t);
    vec3 c = vec3(smoothstep(0.01, 1.0, v));
    color += c;
  }

  outputColor = vec4(color, 1.0);
}

#version 150

const int number_of_targets = 48;

uniform float time;

uniform vec2 resolution;

uniform vec2 targets[number_of_targets];

out vec4 outputColor;

void main() {

vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);

vec3 color = vec3(0.0);

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

vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;

t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

float v = 0.02 / length(p - t);

vec3 c = vec3(smoothstep(0.01, 1.0, v));

color += c;

}

outputColor = vec4(color, 1.0);

}

[ Link ]
https://github.com/junkiyoshi/Insta20180926

2018年9月25日2018年9月25日

Blue Triangles & Red Triangles. openFrameworks

[ Video ]

[ About ]
青い三角と赤い三角。ノイズ関数でサイズをユラユラ

Blue Triangle & Red Triangle. Size is changing by Perlin 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 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);
}

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

}

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

	float radius = 45;
	int edge_half_length = radius * cos(30 * DEG_TO_RAD);
	float triangle_height = sqrt(3) / 2 * (edge_half_length * 2);
		
	int y_gap = 0;
	int deg_start = 0;
	for (int y = 0; y < ofGetHeight() + triangle_height; y += triangle_height) {

		for (int x = 0; x < ofGetWidth() + edge_half_length; x += edge_half_length) {
	
			float triangle_radius = radius * ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.01);
			if (x % (edge_half_length * 2) == 0) {

				deg_start = 270;
				ofSetColor(69, 69, 239);
				y_gap = 0;
			}
			else {

				deg_start = 90;
				ofSetColor(239, 69, 69);
				y_gap = radius - triangle_height;
			}

			ofBeginShape();
			for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

				ofVertex(x + triangle_radius * cos(deg * DEG_TO_RAD), (y + y_gap) + triangle_radius * sin(deg * DEG_TO_RAD));
			}
			ofEndShape();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

float radius = 45;

int edge_half_length = radius * cos(30 * DEG_TO_RAD);

float triangle_height = sqrt(3) / 2 * (edge_half_length * 2);

int y_gap = 0;

int deg_start = 0;

for (int y = 0; y < ofGetHeight() + triangle_height; y += triangle_height) {

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

float triangle_radius = radius * ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.01);

if (x % (edge_half_length * 2) == 0) {

deg_start = 270;

ofSetColor(69, 69, 239);

y_gap = 0;

}

else {

deg_start = 90;

ofSetColor(239, 69, 69);

y_gap = radius - triangle_height;

}

ofBeginShape();

for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

ofVertex(x + triangle_radius * cos(deg * DEG_TO_RAD), (y + y_gap) + triangle_radius * sin(deg * DEG_TO_RAD));

}

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180925

2018年9月24日

Repelling particles. openFrameworks

[ Video ]

[ About ]
反発するカラーパーティクル。速度と透明度をリンク

Repelling particles.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.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) {};

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dCircle>> circles;
	vector<ofColor> colors;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.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) {};

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circles;

vector<ofColor> colors;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	//ofNoFill();
	ofSetLineWidth(1.5);

	this->box2d.init();
	this->box2d.setGravity(0, 0);
	this->box2d.createBounds();
	this->box2d.setFPS(30);
	this->box2d.registerGrabbing();

	for (int i = 0; i < 100; i++) {

		this->circles.push_back(shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle));
		this->circles.back().get()->setPhysics(1.5, 0.5, 0.1);
		this->circles.back().get()->setup(this->box2d.getWorld(), ofRandom(ofGetWidth()), ofRandom(ofGetHeight()), 15);

		ofColor color;
		color.setHsb(ofRandom(255), 255, 255);
		this->colors.push_back(color);
	}
}
//--------------------------------------------------------------
void ofApp::update() {

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

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

			float distance = this->circles[i]->getPosition().distance(this->circles[j]->getPosition());
			if (distance < 60) {

				this->circles[i]->addForce(this->circles[i]->getPosition() - this->circles[j]->getPosition(), 1.0);
				this->circles[j]->addForce(this->circles[j]->getPosition() - this->circles[i]->getPosition(), 1.0);
			}
		}
	}

	this->box2d.update();
}

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

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

		ofPoint point = ofPoint(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);

		ofSetColor(this->colors[i], ofMap(this->circles[i]->getVelocity().length(), 1, 10, 0, 255));
		ofDrawCircle(point, 15);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

//ofNoFill();

ofSetLineWidth(1.5);

this->box2d.init();

this->box2d.setGravity(0, 0);

this->box2d.createBounds();

this->box2d.setFPS(30);

this->box2d.registerGrabbing();

for (int i = 0; i < 100; i++) {

this->circles.push_back(shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle));

this->circles.back().get()->setPhysics(1.5, 0.5, 0.1);

this->circles.back().get()->setup(this->box2d.getWorld(), ofRandom(ofGetWidth()), ofRandom(ofGetHeight()), 15);

ofColor color;

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

this->colors.push_back(color);

}

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

void ofApp::update() {

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

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

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

if (distance < 60) {

this->circles[i]->addForce(this->circles[i]->getPosition() - this->circles[j]->getPosition(), 1.0);

this->circles[j]->addForce(this->circles[j]->getPosition() - this->circles[i]->getPosition(), 1.0);

}

this->box2d.update();

}

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

void ofApp::draw() {

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

ofPoint point = ofPoint(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);

ofSetColor(this->colors[i], ofMap(this->circles[i]->getVelocity().length(), 1, 10, 0, 255));

ofDrawCircle(point, 15);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180924

月	火	水	木	金	土	日
	1	2	3	4	5	6
7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30	31