font – ページ 58 – プログラミング de 落描き

2018年11月10日2018年11月19日

Apple. openFrameworks

[ Video ]

[ About ]
Day 10 Apple

重力で落ちるリンゴ達。リンゴは絵文字🍎、物理エンジンはofxBox2dを使いました。

Apple falling with gravity. Apple is Emoji🍎, And physics engine is ofxBox2d.

[ 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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofTrueTypeFont font;

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

#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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofTrueTypeFont font;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circles;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(239, 39, 39);

	ofTrueTypeFontSettings font_settings("fonts/EmojiSymbols-Regular.ttf", 32);
	font_settings.antialiased = true;
	font_settings.addRanges(ofAlphabet::Emoji);
	this->font.load(font_settings);

	this->box2d.init();
	this->box2d.setGravity(0, 5);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();

}

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

	if (ofGetFrameNum() % 10 == 0) {

		float radius = 16;
		auto circle = make_shared<ofxBox2dCircle>();
		circle->setPhysics(1.0, 0.63, 0.1);
		circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() * 0.5 - 50, ofGetWidth() * 0.5 + 50), 15, radius);
		this->circles.push_back(circle);
	}

	this->box2d.update();
}

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

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

		ofPushMatrix();
		ofTranslate(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);
		ofRotate(this->circles[i]->getRotation());

		this->font.drawString(u8"🍎", this->circles[i]->getRadius() * -1, this->circles[i]->getRadius());

		ofPopMatrix();
	}
}

//========================================================================
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(239, 39, 39);

ofTrueTypeFontSettings font_settings("fonts/EmojiSymbols-Regular.ttf", 32);

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Emoji);

this->font.load(font_settings);

this->box2d.init();

this->box2d.setGravity(0, 5);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

}

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

void ofApp::update() {

if (ofGetFrameNum() % 10 == 0) {

float radius = 16;

auto circle = make_shared<ofxBox2dCircle>();

circle->setPhysics(1.0, 0.63, 0.1);

circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() * 0.5 - 50, ofGetWidth() * 0.5 + 50), 15, radius);

this->circles.push_back(circle);

}

this->box2d.update();

}

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

void ofApp::draw() {

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

ofPushMatrix();

ofTranslate(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);

ofRotate(this->circles[i]->getRotation());

this->font.drawString(u8"🍎", this->circles[i]->getRadius() * -1, this->circles[i]->getRadius());

ofPopMatrix();

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/insta20181110

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2018年11月9日2018年11月9日

Green ( Matrix ). openFrameworks

[ Video ]

[ About ]
Day 9 Green.

Greenからマトリックスのタイトルが思い浮かんだので。前にカタカナが使われていると教えて貰ったので半角カナ対応版

Inspired by Matrix title. Half KATAKANA correspondence version.

[ 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) {}; 

	ofTrueTypeFont font;
	int font_size;

	string moji;
	vector<string> words;
	vector<vector<string>> matrix;
	vector<int> random_values;
};

#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) {};

ofTrueTypeFont font;

int font_size;

string moji;

vector<string> words;

vector<vector<string>> matrix;

vector<int> random_values;

};

#include "ofApp.h"

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

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

	ofBackground(0);

	this->font_size = 20;
	ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);
	font_settings.antialiased = true;
	font_settings.addRanges(ofAlphabet::Japanese);
	this->font.load(font_settings);

	this->words = {

		u8"!", u8"#", u8"$", u8"%", u8"&",
		u8"'", u8"(", u8")", u8"*", u8"+",
		u8",", u8"-", u8".", u8"/", u8"0",
		u8"1", u8"2", u8"3", u8"4", u8"5",
		u8"6", u8"7", u8"8", u8"9", u8"0",
		u8":", u8";", u8"<", u8"=", u8">",
		u8"?", u8"@",
		
		u8"A", u8"B", u8"C", u8"D", u8"E",
		u8"F", u8"G", u8"H", u8"I", u8"J",
		u8"K", u8"L", u8"M", u8"N", u8"O",
		u8"P", u8"Q", u8"R", u8"S", u8"T",
		u8"U", u8"V", u8"W", u8"X", u8"Y", u8"Z",

		u8"a", u8"b", u8"c", u8"d", u8"e",
		u8"f", u8"g", u8"h", u8"i", u8"j",
		u8"k", u8"l", u8"m", u8"n", u8"o",
		u8"p", u8"q", u8"r", u8"s", u8"t",
		u8"u", u8"v", u8"w", u8"x", u8"y", u8"z",

		u8"ｱ", u8"ｲ", u8"ｳ", u8"ｴ", u8"ｵ",
		u8"ｶ", u8"ｷ", u8"ｸ", u8"ｹ", u8"ｺ",
		u8"ｻ", u8"ｼ", u8"ｽ", u8"ｾ", u8"ｿ",
		u8"ﾀ", u8"ﾁ", u8"ﾂ", u8"ﾃ", u8"ﾄ",
		u8"ﾅ", u8"ﾆ", u8"ﾇ", u8"ﾈ", u8"ﾉ",
		u8"ﾊ", u8"ﾋ", u8"ﾌ", u8"ﾍ", u8"ﾎ",
		u8"ﾏ", u8"ﾐ", u8"ﾑ", u8"ﾒ", u8"ﾓ",
		u8"ﾔ", u8"ﾕ", u8"ﾖ",
		u8"ﾗ", u8"ﾘ", u8"ﾙ", u8"ﾚ", u8"ﾛ",
		u8"ﾜ", u8"ｦ", u8"ﾝ",
	};

	for (int x = 0; x < ofGetWidth(); x += this->font_size) {

		vector<string> line;
		for (int y = 0; y <= ofGetHeight(); y += this->font_size) {

			line.push_back(this->words[(int)(ofRandom(this->words.size()))]);
		}

		this->matrix.push_back(line);
		this->random_values.push_back(ofRandom(ofGetHeight() * 1.5));
	}

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

}

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

	for (int row = 0; row < this->matrix.size(); row++) {

		int x = row * this->font_size;

		bool top = true;
		int random_value = this->random_values[row];
		for (int col = 0; col < this->matrix[row].size(); col++) {

			int y = col * this->font_size;

			int alpha = (random_value + ofGetFrameNum() * 4 + y) % (int)(ofGetHeight() * 1.5);
			if (alpha <= 255) {

				if (top) {

					this->matrix[row][col] = this->words[(int)(ofRandom(this->words.size()))];
					top = false;
				}

				int rb = ofMap(alpha, 0, 50, 239, 0);
				ofSetColor(rb, 239, rb, 255 - alpha);
				this->font.drawString(this->matrix[row][col], x, ofGetHeight() - y);
			}
		}
	}


}

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

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

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106

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

this->font_size = 20;

ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Japanese);

this->font.load(font_settings);

this->words = {

u8"!", u8"#", u8"$", u8"%", u8"&",

u8"'", u8"(", u8")", u8"*", u8"+",

u8",", u8"-", u8".", u8"/", u8"0",

u8"1", u8"2", u8"3", u8"4", u8"5",

u8"6", u8"7", u8"8", u8"9", u8"0",

u8":", u8";", u8"<", u8"=", u8">",

u8"?", u8"@",

u8"A", u8"B", u8"C", u8"D", u8"E",

u8"F", u8"G", u8"H", u8"I", u8"J",

u8"K", u8"L", u8"M", u8"N", u8"O",

u8"P", u8"Q", u8"R", u8"S", u8"T",

u8"U", u8"V", u8"W", u8"X", u8"Y", u8"Z",

u8"a", u8"b", u8"c", u8"d", u8"e",

u8"f", u8"g", u8"h", u8"i", u8"j",

u8"k", u8"l", u8"m", u8"n", u8"o",

u8"p", u8"q", u8"r", u8"s", u8"t",

u8"u", u8"v", u8"w", u8"x", u8"y", u8"z",

u8"ｱ", u8"ｲ", u8"ｳ", u8"ｴ", u8"ｵ",

u8"ｶ", u8"ｷ", u8"ｸ", u8"ｹ", u8"ｺ",

u8"ｻ", u8"ｼ", u8"ｽ", u8"ｾ", u8"ｿ",

u8"ﾀ", u8"ﾁ", u8"ﾂ", u8"ﾃ", u8"ﾄ",

u8"ﾅ", u8"ﾆ", u8"ﾇ", u8"ﾈ", u8"ﾉ",

u8"ﾊ", u8"ﾋ", u8"ﾌ", u8"ﾍ", u8"ﾎ",

u8"ﾏ", u8"ﾐ", u8"ﾑ", u8"ﾒ", u8"ﾓ",

u8"ﾔ", u8"ﾕ", u8"ﾖ",

u8"ﾗ", u8"ﾘ", u8"ﾙ", u8"ﾚ", u8"ﾛ",

u8"ﾜ", u8"ｦ", u8"ﾝ",

};

for (int x = 0; x < ofGetWidth(); x += this->font_size) {

vector<string> line;

for (int y = 0; y <= ofGetHeight(); y += this->font_size) {

line.push_back(this->words[(int)(ofRandom(this->words.size()))]);

}

this->matrix.push_back(line);

this->random_values.push_back(ofRandom(ofGetHeight() * 1.5));

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

for (int row = 0; row < this->matrix.size(); row++) {

int x = row * this->font_size;

bool top = true;

int random_value = this->random_values[row];

for (int col = 0; col < this->matrix[row].size(); col++) {

int y = col * this->font_size;

int alpha = (random_value + ofGetFrameNum() * 4 + y) % (int)(ofGetHeight() * 1.5);

if (alpha <= 255) {

if (top) {

this->matrix[row][col] = this->words[(int)(ofRandom(this->words.size()))];

top = false;

}

int rb = ofMap(alpha, 0, 50, 239, 0);

ofSetColor(rb, 239, rb, 255 - alpha);

this->font.drawString(this->matrix[row][col], x, ofGetHeight() - y);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20181109

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2018年11月5日2018年11月19日

Music. openFrameworks

[ Video ]

[ About ]
Day 5 Music.

[ 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) {};

	ofFbo fbo;
	ofTrueTypeFont font;

	ofSoundPlayer sound;
	vector<float> fft_smoothed;
	int n_bands_to_get;

	float r_power;
	float g_power;
	float b_power;

	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) {};

ofFbo fbo;

ofTrueTypeFont font;

ofSoundPlayer sound;

vector<float> fft_smoothed;

int n_bands_to_get;

float r_power;

float g_power;

float b_power;

ofShader shader;

};

#include "ofApp.h"

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

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

	this->font.loadFont("fonts/Kazesawa-bold.ttf", 180, true, true, true);
	this->fbo.allocate(ofGetWidth(), ofGetHeight());
	this->fbo.begin();
	ofClear(0);
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	ofSetColor(255);
	string word = "MUSIC";
	this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

	this->fbo.end();

	this->sound.load("sound/I_Don_t_Wanna_Wait.mp3");
	this->sound.play();

	this->n_bands_to_get = 120;
	for (int j = 0; j < this->n_bands_to_get; j++) {
		
		this->fft_smoothed.push_back(0);
	}

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

	ofSoundUpdate();
	float* val = ofSoundGetSpectrum(this->n_bands_to_get);

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

		this->fft_smoothed[i] *= 0.96f;
		if (this->fft_smoothed[i] < val[i]) {

			this->fft_smoothed[i] = val[i];
		}
	}

	this->r_power = this->fft_smoothed[10];
	this->g_power = this->fft_smoothed[10];
	this->b_power = this->fft_smoothed[10];
}

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

	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniform1f("r_power", this->r_power);
	this->shader.setUniform1f("g_power", this->g_power);
	this->shader.setUniform1f("b_power", this->b_power);
	this->shader.setUniformTexture("tex", this->fbo.getTexture(), 1);

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

	this->shader.end();
}

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

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(1280, 720);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

this->font.loadFont("fonts/Kazesawa-bold.ttf", 180, true, true, true);

this->fbo.allocate(ofGetWidth(), ofGetHeight());

this->fbo.begin();

ofClear(0);

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

ofSetColor(255);

string word = "MUSIC";

this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

this->fbo.end();

this->sound.load("sound/I_Don_t_Wanna_Wait.mp3");

this->sound.play();

this->n_bands_to_get = 120;

for (int j = 0; j < this->n_bands_to_get; j++) {

this->fft_smoothed.push_back(0);

}

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

}

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

void ofApp::update() {

ofSoundUpdate();

float* val = ofSoundGetSpectrum(this->n_bands_to_get);

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

this->fft_smoothed[i] *= 0.96f;

if (this->fft_smoothed[i] < val[i]) {

this->fft_smoothed[i] = val[i];

}

this->r_power = this->fft_smoothed[10];

this->g_power = this->fft_smoothed[10];

this->b_power = this->fft_smoothed[10];

}

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

void ofApp::draw() {

this->shader.begin();

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

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

this->shader.setUniform1f("r_power", this->r_power);

this->shader.setUniform1f("g_power", this->g_power);

this->shader.setUniform1f("b_power", this->b_power);

this->shader.setUniformTexture("tex", this->fbo.getTexture(), 1);

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

this->shader.end();

}

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

int main() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(1280, 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

uniform float time;
uniform vec2 resolution;
uniform float r_power;
uniform float g_power;
uniform float b_power;
uniform sampler2DRect tex;

out vec4 outputColor;

//
// Description : Array and textureless GLSL 2D/3D/4D simplex
//               noise functions.
//      Author : Ian McEwan, Ashima Arts.
//  Maintainer : stegu
//     Lastmod : 20110822 (ijm)
//     License : Copyright (C) 2011 Ashima Arts. All rights reserved.
//               Distributed under the MIT License. See LICENSE file.
//               https://github.com/ashima/webgl-noise
//               https://github.com/stegu/webgl-noise
//

vec4 mod289(vec4 x) {
  return x - floor(x * (1.0 / 289.0)) * 289.0; }

float mod289(float x) {
  return x - floor(x * (1.0 / 289.0)) * 289.0; }

vec4 permute(vec4 x) {
     return mod289(((x*34.0)+1.0)*x);
}

float permute(float x) {
     return mod289(((x*34.0)+1.0)*x);
}

vec4 taylorInvSqrt(vec4 r)
{
  return 1.79284291400159 - 0.85373472095314 * r;
}

float taylorInvSqrt(float r)
{
  return 1.79284291400159 - 0.85373472095314 * r;
}

vec4 grad4(float j, vec4 ip)
  {
  const vec4 ones = vec4(1.0, 1.0, 1.0, -1.0);
  vec4 p,s;

  p.xyz = floor( fract (vec3(j) * ip.xyz) * 7.0) * ip.z - 1.0;
  p.w = 1.5 - dot(abs(p.xyz), ones.xyz);
  s = vec4(lessThan(p, vec4(0.0)));
  p.xyz = p.xyz + (s.xyz*2.0 - 1.0) * s.www;

  return p;
  }

// (sqrt(5) - 1)/4 = F4, used once below
#define F4 0.309016994374947451

float snoise(vec4 v)
  {
  const vec4  C = vec4( 0.138196601125011,  // (5 - sqrt(5))/20  G4
                        0.276393202250021,  // 2 * G4
                        0.414589803375032,  // 3 * G4
                       -0.447213595499958); // -1 + 4 * G4

// First corner
  vec4 i  = floor(v + dot(v, vec4(F4)) );
  vec4 x0 = v -   i + dot(i, C.xxxx);

// Other corners

// Rank sorting originally contributed by Bill Licea-Kane, AMD (formerly ATI)
  vec4 i0;
  vec3 isX = step( x0.yzw, x0.xxx );
  vec3 isYZ = step( x0.zww, x0.yyz );
//  i0.x = dot( isX, vec3( 1.0 ) );
  i0.x = isX.x + isX.y + isX.z;
  i0.yzw = 1.0 - isX;
//  i0.y += dot( isYZ.xy, vec2( 1.0 ) );
  i0.y += isYZ.x + isYZ.y;
  i0.zw += 1.0 - isYZ.xy;
  i0.z += isYZ.z;
  i0.w += 1.0 - isYZ.z;

  // i0 now contains the unique values 0,1,2,3 in each channel
  vec4 i3 = clamp( i0, 0.0, 1.0 );
  vec4 i2 = clamp( i0-1.0, 0.0, 1.0 );
  vec4 i1 = clamp( i0-2.0, 0.0, 1.0 );

  //  x0 = x0 - 0.0 + 0.0 * C.xxxx
  //  x1 = x0 - i1  + 1.0 * C.xxxx
  //  x2 = x0 - i2  + 2.0 * C.xxxx
  //  x3 = x0 - i3  + 3.0 * C.xxxx
  //  x4 = x0 - 1.0 + 4.0 * C.xxxx
  vec4 x1 = x0 - i1 + C.xxxx;
  vec4 x2 = x0 - i2 + C.yyyy;
  vec4 x3 = x0 - i3 + C.zzzz;
  vec4 x4 = x0 + C.wwww;

// Permutations
  i = mod289(i);
  float j0 = permute( permute( permute( permute(i.w) + i.z) + i.y) + i.x);
  vec4 j1 = permute( permute( permute( permute (
             i.w + vec4(i1.w, i2.w, i3.w, 1.0 ))
           + i.z + vec4(i1.z, i2.z, i3.z, 1.0 ))
           + i.y + vec4(i1.y, i2.y, i3.y, 1.0 ))
           + i.x + vec4(i1.x, i2.x, i3.x, 1.0 ));

// Gradients: 7x7x6 points over a cube, mapped onto a 4-cross polytope
// 7*7*6 = 294, which is close to the ring size 17*17 = 289.
  vec4 ip = vec4(1.0/294.0, 1.0/49.0, 1.0/7.0, 0.0) ;

  vec4 p0 = grad4(j0,   ip);
  vec4 p1 = grad4(j1.x, ip);
  vec4 p2 = grad4(j1.y, ip);
  vec4 p3 = grad4(j1.z, ip);
  vec4 p4 = grad4(j1.w, ip);

// Normalise gradients
  vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));
  p0 *= norm.x;
  p1 *= norm.y;
  p2 *= norm.z;
  p3 *= norm.w;
  p4 *= taylorInvSqrt(dot(p4,p4));

// Mix contributions from the five corners
  vec3 m0 = max(0.6 - vec3(dot(x0,x0), dot(x1,x1), dot(x2,x2)), 0.0);
  vec2 m1 = max(0.6 - vec2(dot(x3,x3), dot(x4,x4)            ), 0.0);
  m0 = m0 * m0;
  m1 = m1 * m1;
  return 49.0 * ( dot(m0*m0, vec3( dot( p0, x0 ), dot( p1, x1 ), dot( p2, x2 )))
               + dot(m1*m1, vec2( dot( p3, x3 ), dot( p4, x4 ) ) ) ) ;
  }

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);
  vec3 color = vec3(1.0);

  float r_x_noise = snoise(vec4( 0.0, p.x, p.y, time)) * r_power;
  float g_x_noise = snoise(vec4(10.0, p.x, p.y, time)) * g_power;
  float b_x_noise = snoise(vec4(20.0, p.x, p.y, time)) * b_power;

  float r_y_noise = snoise(vec4(30.0, p.x * 10.0, p.y * 10.0, time)) * r_power;
  float g_y_noise = snoise(vec4(40.0, p.x * 10.0, p.y * 10.0, time)) * g_power;
  float b_y_noise = snoise(vec4(50.0, p.x * 10.0, p.y * 10.0, time)) * b_power;

  float drift = 200;
  float r = texture(tex, vec2(gl_FragCoord.x + r_x_noise * drift, resolution.y - gl_FragCoord.y + r_y_noise * drift)).r;
  float g = texture(tex, vec2(gl_FragCoord.x + g_x_noise * drift, resolution.y - gl_FragCoord.y + g_y_noise * drift)).g;
  float b = texture(tex, vec2(gl_FragCoord.x + b_x_noise * drift, resolution.y - gl_FragCoord.y + b_y_noise * drift)).b;
  outputColor = vec4(color - vec3(r, g, b), 1.0);
}

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#version 150

uniform float time;

uniform vec2 resolution;

uniform float r_power;

uniform float g_power;

uniform float b_power;

uniform sampler2DRect tex;

out vec4 outputColor;

// Description : Array and textureless GLSL 2D/3D/4D simplex

// noise functions.

// Author : Ian McEwan, Ashima Arts.

// Maintainer : stegu

// Lastmod : 20110822 (ijm)

// Distributed under the MIT License. See LICENSE file.

// https://github.com/ashima/webgl-noise

// https://github.com/stegu/webgl-noise

vec4 mod289(vec4 x) {

return x - floor(x * (1.0 / 289.0)) * 289.0; }

float mod289(float x) {

return x - floor(x * (1.0 / 289.0)) * 289.0; }

vec4 permute(vec4 x) {

return mod289(((x*34.0)+1.0)*x);

}

float permute(float x) {

return mod289(((x*34.0)+1.0)*x);

}

vec4 taylorInvSqrt(vec4 r)

{

return 1.79284291400159 - 0.85373472095314 * r;

}

float taylorInvSqrt(float r)

{

return 1.79284291400159 - 0.85373472095314 * r;

}

vec4 grad4(float j, vec4 ip)

{

const vec4 ones = vec4(1.0, 1.0, 1.0, -1.0);

vec4 p,s;

p.xyz = floor( fract (vec3(j) * ip.xyz) * 7.0) * ip.z - 1.0;

p.w = 1.5 - dot(abs(p.xyz), ones.xyz);

s = vec4(lessThan(p, vec4(0.0)));

p.xyz = p.xyz + (s.xyz*2.0 - 1.0) * s.www;

return p;

}

// (sqrt(5) - 1)/4 = F4, used once below

#define F4 0.309016994374947451

float snoise(vec4 v)

{

const vec4 C = vec4( 0.138196601125011, // (5 - sqrt(5))/20 G4

0.276393202250021, // 2 * G4

0.414589803375032, // 3 * G4

-0.447213595499958); // -1 + 4 * G4

// First corner

vec4 i = floor(v + dot(v, vec4(F4)) );

vec4 x0 = v - i + dot(i, C.xxxx);

// Other corners

// Rank sorting originally contributed by Bill Licea-Kane, AMD (formerly ATI)

vec4 i0;

vec3 isX = step( x0.yzw, x0.xxx );

vec3 isYZ = step( x0.zww, x0.yyz );

// i0.x = dot( isX, vec3( 1.0 ) );

i0.x = isX.x + isX.y + isX.z;

i0.yzw = 1.0 - isX;

// i0.y += dot( isYZ.xy, vec2( 1.0 ) );

i0.y += isYZ.x + isYZ.y;

i0.zw += 1.0 - isYZ.xy;

i0.z += isYZ.z;

i0.w += 1.0 - isYZ.z;

// i0 now contains the unique values 0,1,2,3 in each channel

vec4 i3 = clamp( i0, 0.0, 1.0 );

vec4 i2 = clamp( i0-1.0, 0.0, 1.0 );

vec4 i1 = clamp( i0-2.0, 0.0, 1.0 );

// x0 = x0 - 0.0 + 0.0 * C.xxxx

// x1 = x0 - i1 + 1.0 * C.xxxx

// x2 = x0 - i2 + 2.0 * C.xxxx

// x3 = x0 - i3 + 3.0 * C.xxxx

// x4 = x0 - 1.0 + 4.0 * C.xxxx

vec4 x1 = x0 - i1 + C.xxxx;

vec4 x2 = x0 - i2 + C.yyyy;

vec4 x3 = x0 - i3 + C.zzzz;

vec4 x4 = x0 + C.wwww;

// Permutations

i = mod289(i);

float j0 = permute( permute( permute( permute(i.w) + i.z) + i.y) + i.x);

vec4 j1 = permute( permute( permute( permute (

i.w + vec4(i1.w, i2.w, i3.w, 1.0 ))

+ i.z + vec4(i1.z, i2.z, i3.z, 1.0 ))

+ i.y + vec4(i1.y, i2.y, i3.y, 1.0 ))

+ i.x + vec4(i1.x, i2.x, i3.x, 1.0 ));

// Gradients: 7x7x6 points over a cube, mapped onto a 4-cross polytope

// 7*7*6 = 294, which is close to the ring size 17*17 = 289.

vec4 ip = vec4(1.0/294.0, 1.0/49.0, 1.0/7.0, 0.0) ;

vec4 p0 = grad4(j0, ip);

vec4 p1 = grad4(j1.x, ip);

vec4 p2 = grad4(j1.y, ip);

vec4 p3 = grad4(j1.z, ip);

vec4 p4 = grad4(j1.w, ip);

// Normalise gradients

vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));

p0 *= norm.x;

p1 *= norm.y;

p2 *= norm.z;

p3 *= norm.w;

p4 *= taylorInvSqrt(dot(p4,p4));

// Mix contributions from the five corners

vec3 m0 = max(0.6 - vec3(dot(x0,x0), dot(x1,x1), dot(x2,x2)), 0.0);

vec2 m1 = max(0.6 - vec2(dot(x3,x3), dot(x4,x4) ), 0.0);

m0 = m0 * m0;

m1 = m1 * m1;

return 49.0 * ( dot(m0*m0, vec3( dot( p0, x0 ), dot( p1, x1 ), dot( p2, x2 )))

+ dot(m1*m1, vec2( dot( p3, x3 ), dot( p4, x4 ) ) ) ) ;

}

void main() {

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

vec3 color = vec3(1.0);

float r_x_noise = snoise(vec4( 0.0, p.x, p.y, time)) * r_power;

float g_x_noise = snoise(vec4(10.0, p.x, p.y, time)) * g_power;

float b_x_noise = snoise(vec4(20.0, p.x, p.y, time)) * b_power;

float r_y_noise = snoise(vec4(30.0, p.x * 10.0, p.y * 10.0, time)) * r_power;

float g_y_noise = snoise(vec4(40.0, p.x * 10.0, p.y * 10.0, time)) * g_power;

float b_y_noise = snoise(vec4(50.0, p.x * 10.0, p.y * 10.0, time)) * b_power;

float drift = 200;

float r = texture(tex, vec2(gl_FragCoord.x + r_x_noise * drift, resolution.y - gl_FragCoord.y + r_y_noise * drift)).r;

float g = texture(tex, vec2(gl_FragCoord.x + g_x_noise * drift, resolution.y - gl_FragCoord.y + g_y_noise * drift)).g;

float b = texture(tex, vec2(gl_FragCoord.x + b_x_noise * drift, resolution.y - gl_FragCoord.y + b_y_noise * drift)).b;

outputColor = vec4(color - vec3(r, g, b), 1.0);

}

[ Link ]
https://github.com/junkiyoshi/Insta20181105

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