opencv – ページ 22 – プログラミング de 落描き

2020年3月20日2020年3月20日

Neon circles. openFrameworks

[ Video ]

[ About ]
ネオン・サークルズ。

Neon circles.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

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) {};

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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) {};

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->fbo.allocate(ofGetWidth(), ofGetHeight());
	this->fbo.readToPixels(this->pixels);
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}

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

	ofSeedRandom(39);

	this->fbo.begin();
	ofClear(0);
	ofFill();
	ofTranslate(this->fbo.getWidth() * 0.5, this->fbo.getHeight() * 0.5);

	ofColor color;
	for (int i = 0; i < 8; i++) {

		auto len = 23;
		auto radius = (i + 1) * 40;
		auto deg_start = ofRandom(360) + ofGetFrameNum() * ofRandom(3, 8);
		auto deg_end = deg_start + ofRandom(100, 270);
		vector<glm::vec2> vertices_1, vertices_2;
		for (int deg = deg_start - 5; deg <= deg_end + 5; deg++) {

			vertices_1.push_back(glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)));
			vertices_2.push_back(glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)));
		}
		reverse(vertices_2.begin(), vertices_2.end());

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

		ofBeginShape();
		ofVertices(vertices_1);
		ofVertices(vertices_2);
		ofEndShape(true);
	}

	this->fbo.end();
	this->fbo.readToPixels(this->pixels);

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(49, 49), 50, 50);
}

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

	ofSeedRandom(39); // 

	ofFill();
	ofSetColor(255);
	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(0, 0);

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

	ofColor color;
	for (int i = 0; i < 8; i++) {

		auto len = 8;
		auto radius = (i + 1) * 40;
		auto deg_start = ofRandom(360) + ofGetFrameNum() * ofRandom(3, 8);
		auto deg_end = deg_start + ofRandom(100, 270);
		vector<glm::vec2> vertices_1, vertices_2;
		for (int deg = deg_start; deg <= deg_end; deg++) {

			vertices_1.push_back(glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)));
			vertices_2.push_back(glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)));
		}
		reverse(vertices_2.begin(), vertices_2.end());

		color.setHsb(ofRandom(255), 255, 255);
		
		ofFill();
		ofSetColor(ofColor(255));
		ofBeginShape();
		ofVertices(vertices_1);
		ofVertices(vertices_2);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(color);
		ofBeginShape();
		ofVertices(vertices_1);
		ofVertices(vertices_2);
		ofEndShape(true);
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(3);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

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

this->fbo.readToPixels(this->pixels);

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

ofSeedRandom(39);

this->fbo.begin();

ofClear(0);

ofFill();

ofTranslate(this->fbo.getWidth() * 0.5, this->fbo.getHeight() * 0.5);

ofColor color;

for (int i = 0; i < 8; i++) {

auto len = 23;

auto radius = (i + 1) * 40;

auto deg_start = ofRandom(360) + ofGetFrameNum() * ofRandom(3, 8);

auto deg_end = deg_start + ofRandom(100, 270);

vector<glm::vec2> vertices_1, vertices_2;

for (int deg = deg_start - 5; deg <= deg_end + 5; deg++) {

vertices_1.push_back(glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)));

vertices_2.push_back(glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)));

}

reverse(vertices_2.begin(), vertices_2.end());

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

ofSetColor(color);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

}

this->fbo.end();

this->fbo.readToPixels(this->pixels);

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(49, 49), 50, 50);

}

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

void ofApp::draw() {

ofSeedRandom(39); //

ofFill();

ofSetColor(255);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(0, 0);

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

ofColor color;

for (int i = 0; i < 8; i++) {

auto len = 8;

auto radius = (i + 1) * 40;

auto deg_start = ofRandom(360) + ofGetFrameNum() * ofRandom(3, 8);

auto deg_end = deg_start + ofRandom(100, 270);

vector<glm::vec2> vertices_1, vertices_2;

for (int deg = deg_start; deg <= deg_end; deg++) {

vertices_1.push_back(glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)));

vertices_2.push_back(glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)));

}

reverse(vertices_2.begin(), vertices_2.end());

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

ofFill();

ofSetColor(ofColor(255));

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

ofNoFill();

ofSetColor(color);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200320

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2020年3月19日2020年3月19日

Glowing orb. openFrameworks

[ Video ]

[ About ]
OpenCVのぼかしを使って発光っぽいのを目指す。

Glowing orb.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

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) {};

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;

	vector<glm::vec2> location_list;
	vector<ofColor> color_list;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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) {};

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

vector<glm::vec2> location_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->fbo.allocate(ofGetWidth(), ofGetHeight());
	this->fbo.readToPixels(this->pixels);
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}

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

	ofSeedRandom(39);

	this->location_list.clear();
	this->color_list.clear();

	this->fbo.begin();
	ofClear(0);
	ofFill();

	ofColor color;
	glm::vec2 location;
	for (int i = 0; i < 16; i++) {

		color.setHsb(ofMap(i, 0, 16, 0, 255), 255, 255);
		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

		ofSetColor(color);
		for (int k = 0; k < 8; k++) {

			location = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + k) * 0.008), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + k) * 0.008), 0, 1, 0, ofGetHeight()));

			ofBeginShape();
			for (int deg = 0; deg < 360; deg++) {

				ofVertex(location + glm::vec2(ofMap(k, 0, 8, 5, 40) * cos(deg * DEG_TO_RAD), ofMap(k, 0, 8, 5, 40) * sin(deg * DEG_TO_RAD)));
			}
			ofEndShape(true);
		}

		this->color_list.push_back(color);
		this->location_list.push_back(location);
	}

	this->fbo.end();
	this->fbo.readToPixels(this->pixels);

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(49, 49), 50, 50);
}

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

	ofFill();
	ofSetColor(255);
	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(0, 0);
	
	for (int i = 0; i < this->location_list.size(); i++) {

		vector<glm::vec2> vertices;
		for (int deg = 0; deg < 360; deg++) {

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

		ofFill();
		ofSetColor(255);
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(this->color_list[i]);
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(3);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

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

this->fbo.readToPixels(this->pixels);

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

ofSeedRandom(39);

this->location_list.clear();

this->color_list.clear();

this->fbo.begin();

ofClear(0);

ofFill();

ofColor color;

glm::vec2 location;

for (int i = 0; i < 16; i++) {

color.setHsb(ofMap(i, 0, 16, 0, 255), 255, 255);

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

ofSetColor(color);

for (int k = 0; k < 8; k++) {

location = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + k) * 0.008), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + k) * 0.008), 0, 1, 0, ofGetHeight()));

ofBeginShape();

for (int deg = 0; deg < 360; deg++) {

ofVertex(location + glm::vec2(ofMap(k, 0, 8, 5, 40) * cos(deg * DEG_TO_RAD), ofMap(k, 0, 8, 5, 40) * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

}

this->color_list.push_back(color);

this->location_list.push_back(location);

}

this->fbo.end();

this->fbo.readToPixels(this->pixels);

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(49, 49), 50, 50);

}

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

void ofApp::draw() {

ofFill();

ofSetColor(255);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(0, 0);

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

vector<glm::vec2> vertices;

for (int deg = 0; deg < 360; deg++) {

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

}

ofFill();

ofSetColor(255);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(this->color_list[i]);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200319

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2020年3月13日2020年3月13日

Ripple of ASCII. openFrameworks

[ Video ]

[ About ]
文字の波紋。

Ripple of ASCII.

[ Source ]

#pragma once
#include "ofMain.h"
#include "Ripple.h"
#include "opencv2/opencv.hpp"

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;
	vector<string> word_list;

	vector<unique_ptr<Ripple>> ripple_list;

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;
};

#pragma once

#include "ofMain.h"

#include "Ripple.h"

#include "opencv2/opencv.hpp"

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;

vector<string> word_list;

vector<unique_ptr<Ripple>> ripple_list;

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofNoFill();

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

	this->word_list = {

		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",
	};

	this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);
	this->fbo.readToPixels(this->pixels);
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}

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

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

		glm::vec3 location(ofRandom(this->fbo.getWidth()), ofRandom(this->fbo.getHeight()), ofRandom(800, 1500));
		unique_ptr<Ripple> ripple(new Ripple(location));
		this->ripple_list.push_back(move(ripple));
	}

	this->fbo.begin();
	ofClear(0);

	for (int i = this->ripple_list.size() - 1; i >= 0; i--) {

		if (this->ripple_list[i]->isDead()) {

			this->ripple_list.erase(this->ripple_list.begin() + i);
		}
		else {

			this->ripple_list[i]->update();
			this->ripple_list[i]->draw(this->font, this->word_list);
		}
	}

	this->fbo.end();
	this->fbo.readToPixels(this->pixels);

	cv::Mat gray_mat;
	cv::cvtColor(this->pixels_mat, gray_mat, cv::COLOR_RGBA2GRAY);
	for (int y = 0; y < this->pixels_mat.cols; y++) {

		for (int x = 0; x < this->pixels_mat.rows; x++) {

			if (gray_mat.at<unsigned char>(y, x) > 0) {

				this->pixels_mat.at<cv::Vec4b>(y, x) = cv::Vec4b(gray_mat.at<unsigned char>(y, x), gray_mat.at<unsigned char>(y, x), gray_mat.at<unsigned char>(y, x), this->pixels_mat.at<cv::Vec4b>(y, x)[3]);
			}
		}
	}

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);
}

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

	ofSetColor(255);

	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(-5, -5);

	this->fbo.draw(-25, -25);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofNoFill();

ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", 20);

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Japanese);

this->font.load(font_settings);

this->word_list = {

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",

};

this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);

this->fbo.readToPixels(this->pixels);

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

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

glm::vec3 location(ofRandom(this->fbo.getWidth()), ofRandom(this->fbo.getHeight()), ofRandom(800, 1500));

unique_ptr<Ripple> ripple(new Ripple(location));

this->ripple_list.push_back(move(ripple));

}

this->fbo.begin();

ofClear(0);

for (int i = this->ripple_list.size() - 1; i >= 0; i--) {

if (this->ripple_list[i]->isDead()) {

this->ripple_list.erase(this->ripple_list.begin() + i);

}

else {

this->ripple_list[i]->update();

this->ripple_list[i]->draw(this->font, this->word_list);

}

this->fbo.end();

this->fbo.readToPixels(this->pixels);

cv::Mat gray_mat;

cv::cvtColor(this->pixels_mat, gray_mat, cv::COLOR_RGBA2GRAY);

for (int y = 0; y < this->pixels_mat.cols; y++) {

for (int x = 0; x < this->pixels_mat.rows; x++) {

if (gray_mat.at<unsigned char>(y, x) > 0) {

this->pixels_mat.at<cv::Vec4b>(y, x) = cv::Vec4b(gray_mat.at<unsigned char>(y, x), gray_mat.at<unsigned char>(y, x), gray_mat.at<unsigned char>(y, x), this->pixels_mat.at<cv::Vec4b>(y, x)[3]);

}

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);

}

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

void ofApp::draw() {

ofSetColor(255);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(-5, -5);

this->fbo.draw(-25, -25);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Ripple
{
public:

	Ripple();
	Ripple(glm::vec3 location);
	void update();
	void draw(ofTrueTypeFont& font, vector<string>& word_list);
	bool isDead();
private:

	glm::vec3 location;
	float radius;
	float radius_max;
	float radius_span;
};

#pragma once

#include "ofMain.h"

class Ripple

{

public:

Ripple();

Ripple(glm::vec3 location);

void update();

void draw(ofTrueTypeFont& font, vector<string>& word_list);

bool isDead();

private:

glm::vec3 location;

float radius;

float radius_max;

float radius_span;

};

#include "Ripple.h"

//--------------------------------------------------------------
Ripple::Ripple() : Ripple(glm::vec3()) {

}

//--------------------------------------------------------------
Ripple::Ripple(glm::vec3 location) {

	this->location = location;
	this->radius = 1;
	this->radius_max = location.z / 10;
}

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

	if (this->location.z > 0) {

		this->location.z = this->location.z > 10 ? this->location.z - 10 : 0;
		return;
	}

	if (this->radius < this->radius_max) {  this->radius += 1; }
}

//--------------------------------------------------------------
void Ripple::draw(ofTrueTypeFont& font, vector<string>& word_list) {

	ofPushMatrix();
	ofTranslate(this->location);

	if (this->location.z > 0) {

		ofSetColor(39);
		ofDrawLine(glm::vec3(), glm::vec3(0, 0, 30));
	}
	else {

		auto alpha = this->radius < this->radius_max * 0.5 ? 255 : ofMap(this->radius, this->radius_max * 0.5, this->radius_max, 255, 10);
		ofSetColor(39, alpha);
		for (int deg = 0; deg < 360; deg += 20) {

			glm::vec2 word_location(this->radius * cos(deg * DEG_TO_RAD), this->radius * sin(deg * DEG_TO_RAD));
			auto noise_seed_location = glm::vec2(this->location) + word_location;
			int word_index = ofMap(ofNoise(glm::vec3(noise_seed_location * 0.003, ofGetFrameNum() * 0.001)), 0, 1, 0, word_list.size());

			ofPushMatrix();
			ofTranslate(word_location);
			ofRotateZ(deg + 90);

			font.drawString(word_list[word_index], -10.5, 10);

			ofPopMatrix();
		}
	}

	ofPopMatrix();
}

//--------------------------------------------------------------
bool Ripple::isDead() {

	return this->radius >= this->radius_max;
}

#include "Ripple.h"

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

Ripple::Ripple() : Ripple(glm::vec3()) {

}

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

Ripple::Ripple(glm::vec3 location) {

this->location = location;

this->radius = 1;

this->radius_max = location.z / 10;

}

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

void Ripple::update() {

if (this->location.z > 0) {

this->location.z = this->location.z > 10 ? this->location.z - 10 : 0;

return;

}

if (this->radius < this->radius_max) { this->radius += 1; }

}

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

void Ripple::draw(ofTrueTypeFont& font, vector<string>& word_list) {

ofPushMatrix();

ofTranslate(this->location);

if (this->location.z > 0) {

ofSetColor(39);

ofDrawLine(glm::vec3(), glm::vec3(0, 0, 30));

}

else {

auto alpha = this->radius < this->radius_max * 0.5 ? 255 : ofMap(this->radius, this->radius_max * 0.5, this->radius_max, 255, 10);

ofSetColor(39, alpha);

for (int deg = 0; deg < 360; deg += 20) {

glm::vec2 word_location(this->radius * cos(deg * DEG_TO_RAD), this->radius * sin(deg * DEG_TO_RAD));

auto noise_seed_location = glm::vec2(this->location) + word_location;

int word_index = ofMap(ofNoise(glm::vec3(noise_seed_location * 0.003, ofGetFrameNum() * 0.001)), 0, 1, 0, word_list.size());

ofPushMatrix();

ofTranslate(word_location);

ofRotateZ(deg + 90);

font.drawString(word_list[word_index], -10.5, 10);

ofPopMatrix();

}

ofPopMatrix();

}

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

bool Ripple::isDead() {

return this->radius >= this->radius_max;

}

[ Link ]
https://github.com/junkiyoshi/Insta20200313

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