プログラミング de 落描き – ページ 692 – クリエイティブ・コーディングによる生成物とソース

2019年6月23日2019年6月23日

Sphere fall apart. openFrameworks

[ Video ]

[ About ]
IcoSphereから面情報を取得、フレーム数をパラメータにバラバラにする。

Getting mesh from IcoSphere. Changing radius by frame count.

[ 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) {};

	vector<ofMeshFace> triangles;
	ofEasyCam cam;
};

#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) {};

vector<ofMeshFace> triangles;

ofEasyCam cam;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(150, 2);
	this->triangles = ico_sphere.getMesh().getUniqueFaces();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

	for (auto& triangle : this->triangles) {

		auto avg = glm::vec3(triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		auto param = (int)(ofRandom(750) + ofGetFrameNum()) % 750;
		auto tmp_radius = 150;
		auto rotate = 0;
		auto alpha = 255.f;
		if (param > 600) {

			tmp_radius = ofMap(param, 600, 750, 150, 300);
			rotate = ofMap(param, 600, 750, 0, 360);
			alpha = rotate = ofMap(param, 600, 750, 255, 0);
		}
		else if (param < 150) {

			alpha = ofMap(param, 0, 150, 0, 255);
		}

		auto tmp_avg = glm::normalize(avg) * tmp_radius;

		ofPushMatrix();
		ofTranslate(tmp_avg);
		ofRotateX(rotate);
		ofRotateY(rotate);

		vector<glm::vec3> vertices;
		vector<glm::vec3> fill_vertices;
		for (int j = 0; j < 3; j++) {

			glm::vec3 location = glm::vec3(triangle.getVertex(j).x, triangle.getVertex(j).y, triangle.getVertex(j).z) - avg;

			vertices.push_back(location);
			fill_vertices.push_back(location * 0.98);
		}

		ofFill();
		ofSetColor(239, alpha);
		ofBeginShape();
		ofVertices(fill_vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(39, alpha);
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofPopMatrix();
	}

	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);

ofSetLineWidth(2);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(150, 2);

this->triangles = ico_sphere.getMesh().getUniqueFaces();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

for (auto& triangle : this->triangles) {

auto avg = glm::vec3(triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

auto param = (int)(ofRandom(750) + ofGetFrameNum()) % 750;

auto tmp_radius = 150;

auto rotate = 0;

auto alpha = 255.f;

if (param > 600) {

tmp_radius = ofMap(param, 600, 750, 150, 300);

rotate = ofMap(param, 600, 750, 0, 360);

alpha = rotate = ofMap(param, 600, 750, 255, 0);

}

else if (param < 150) {

alpha = ofMap(param, 0, 150, 0, 255);

}

auto tmp_avg = glm::normalize(avg) * tmp_radius;

ofPushMatrix();

ofTranslate(tmp_avg);

ofRotateX(rotate);

ofRotateY(rotate);

vector<glm::vec3> vertices;

vector<glm::vec3> fill_vertices;

for (int j = 0; j < 3; j++) {

glm::vec3 location = glm::vec3(triangle.getVertex(j).x, triangle.getVertex(j).y, triangle.getVertex(j).z) - avg;

vertices.push_back(location);

fill_vertices.push_back(location * 0.98);

}

ofFill();

ofSetColor(239, alpha);

ofBeginShape();

ofVertices(fill_vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39, alpha);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190623

2019年6月22日

Charactor by charactor. openFrameworks

[ Video ]

[ About ]
文字による文字

Charactor by charactor.

[ Source ]

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

	vector<unique_ptr<My::Shape>> shapes;
};

#pragma once

#include "ofMain.h"

#include "MyShapes.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) {};

vector<unique_ptr<My::Shape>> shapes;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Bold.ttf", 300, true, true, true);

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofSetColor(0);
	string word_1 = "AB";
	font.drawString(word_1, ofGetWidth() * 0.5 - font.stringWidth(word_1) * 0.5, ofGetHeight() * 0.48);
	string word_2 = "CD";
	font.drawString(word_2, ofGetWidth() * 0.5 - font.stringWidth(word_2) * 0.5, ofGetHeight() * 0.52 + font.stringHeight(word_1));
	fbo.end();

	vector<ofPath> path_list;
	path_list.push_back(font.getCharacterAsPoints('A', true, false));
	path_list.push_back(font.getCharacterAsPoints('B', true, false));
	path_list.push_back(font.getCharacterAsPoints('C', true, false));
	path_list.push_back(font.getCharacterAsPoints('D', true, false));

	ofPixels pix;
	fbo.readToPixels(pix);

	while (this->shapes.size() < 350) {

		int x = ofRandom(ofGetWidth());
		int y = ofRandom(ofGetHeight());

		ofColor pix_color = pix.getColor(x, y);
		if (pix_color != ofColor(0)) {
			
			continue;
		}

		auto location = glm::vec2(x, y);
		float radius = ofRandom(5, 20);

		auto flag = true;
		for (auto& shape : this->shapes) {

			if (glm::distance(location, shape->location) <  radius + shape->radius) {

				flag = false;
				break;
			}
		}

		if (flag) {

			unique_ptr<My::Shape> shape;
			int r = ofRandom(path_list.size());
			shape = make_unique<My::Path>(location, radius, path_list[r]);
			this->shapes.push_back(move(shape));
		}
	}
}

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

	ofSeedRandom(39);
}

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

	for (auto& shape : this->shapes) {

		shape->draw();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Bold.ttf", 300, true, true, true);

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

ofSetColor(0);

string word_1 = "AB";

font.drawString(word_1, ofGetWidth() * 0.5 - font.stringWidth(word_1) * 0.5, ofGetHeight() * 0.48);

string word_2 = "CD";

font.drawString(word_2, ofGetWidth() * 0.5 - font.stringWidth(word_2) * 0.5, ofGetHeight() * 0.52 + font.stringHeight(word_1));

fbo.end();

vector<ofPath> path_list;

path_list.push_back(font.getCharacterAsPoints('A', true, false));

path_list.push_back(font.getCharacterAsPoints('B', true, false));

path_list.push_back(font.getCharacterAsPoints('C', true, false));

path_list.push_back(font.getCharacterAsPoints('D', true, false));

ofPixels pix;

fbo.readToPixels(pix);

while (this->shapes.size() < 350) {

int x = ofRandom(ofGetWidth());

int y = ofRandom(ofGetHeight());

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

if (pix_color != ofColor(0)) {

continue;

}

auto location = glm::vec2(x, y);

float radius = ofRandom(5, 20);

auto flag = true;

for (auto& shape : this->shapes) {

if (glm::distance(location, shape->location) < radius + shape->radius) {

flag = false;

break;

}

if (flag) {

unique_ptr<My::Shape> shape;

int r = ofRandom(path_list.size());

shape = make_unique<My::Path>(location, radius, path_list[r]);

this->shapes.push_back(move(shape));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (auto& shape : this->shapes) {

shape->draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

namespace My {

	class Shape {
	public:
		Shape(glm::vec2 location, float radius);
		~Shape() {};
		virtual void draw() = 0;

		glm::vec2 location;
		float radius;
		bool fill;
	};

	class Circle : public Shape {
	public:
		Circle(glm::vec2 location, float radius);
		void draw() override;
	private:
		int deg;
	};

	class Rectangle : public Shape {
	public:
		Rectangle(glm::vec2 location, float radius);
		void draw() override;
	private:
		float len;
		float speed;
		int direction;
	};

	class Path : public Shape {
	public:
		Path(glm::vec2 location, float radius, ofPath path);
		void draw() override;
		ofPath path;
	private:
		int rotate;
	};
}

#pragma once

#include "ofMain.h"

namespace My {

class Shape {

public:

Shape(glm::vec2 location, float radius);

~Shape() {};

virtual void draw() = 0;

glm::vec2 location;

float radius;

bool fill;

};

class Circle : public Shape {

public:

Circle(glm::vec2 location, float radius);

void draw() override;

private:

int deg;

};

class Rectangle : public Shape {

public:

Rectangle(glm::vec2 location, float radius);

void draw() override;

private:

float len;

float speed;

int direction;

};

class Path : public Shape {

public:

Path(glm::vec2 location, float radius, ofPath path);

void draw() override;

ofPath path;

private:

int rotate;

};

}

#include "MyShapes.h"

// Shape
//--------------------------------------------------------------
My::Shape::Shape(glm::vec2 location, float radius) {

	this->location = location;
	this->radius = radius;
	this->fill = ofRandom(1) < 0.5 ? true : false;
}

// Circle
//--------------------------------------------------------------
My::Circle::Circle(glm::vec2 location, float radius) : Shape(location, radius) {

	this->deg = ofRandom(360);
}

//--------------------------------------------------------------
void My::Circle::draw() {

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

	this->fill ? ofFill() : ofNoFill();
	ofSetColor(39);
	ofDrawCircle(glm::vec2(), this->radius);

	float tmp_radius = ofNoise(this->location.x * 0.005, this->location.y * 0.005, ofGetFrameNum() * 0.005) * this->radius;

	this->fill ? ofSetColor(239) : ofFill();
	ofBeginShape();
	for (int deg = 0; deg < 360; deg += 36) {

		if (deg % 72 == 0) {

			ofVertex(tmp_radius * cos(deg * DEG_TO_RAD), tmp_radius * sin(deg * DEG_TO_RAD));
		}
		else {

			ofVertex(tmp_radius * 0.5 * cos(deg * DEG_TO_RAD), tmp_radius * 0.5 * sin(deg * DEG_TO_RAD));
		}
	}
	ofEndShape(true);

	ofPopMatrix();
}

// Rectangle
//--------------------------------------------------------------
My::Rectangle::Rectangle(glm::vec2 location, float radius) : Shape(location, radius) {

	this->len = radius * sqrt(2);
	this->speed = ofRandom(0.5, 3);
	this->direction = ofRandom(1) < 0.5 ? -1 : 1;
}

//--------------------------------------------------------------
void My::Rectangle::draw() {

	ofPushMatrix();
	ofTranslate(this->location);
	ofRotate(ofGetFrameNum() * this->speed * this->direction);

	this->fill ? ofFill() : ofNoFill();
	ofSetColor(39);
	ofDrawRectangle(glm::vec2(), this->len, this->len);

	ofPopMatrix();
}

// Path
//--------------------------------------------------------------
My::Path::Path(glm::vec2 location, float radius, ofPath path) : Shape(location, radius) {

	this->path = path;
	this->rotate = ofRandom(360);
}

//--------------------------------------------------------------
void My::Path::draw() {

	this->fill ? ofFill() : ofNoFill();
	auto tmp_radius = this->radius * 1.5;

	ofPushMatrix();
	ofTranslate(this->location);
	ofRotate(this->rotate++);

	auto outline = path.getOutline();
	
	ofBeginShape();
	for (int line_index = 0; line_index < outline.size(); line_index++) {

		if (line_index != 0) { ofNextContour(true); }

		auto vertices = outline[line_index].getVertices();
		for (int i = 0; i < vertices.size(); i++) {

			ofVertex((vertices[i] / 300 * tmp_radius) + glm::vec2(tmp_radius * -0.5, tmp_radius * 0.5));
		}
	}
	ofEndShape(true);

	ofPopMatrix();
}

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#include "MyShapes.h"

// Shape

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

My::Shape::Shape(glm::vec2 location, float radius) {

this->location = location;

this->radius = radius;

this->fill = ofRandom(1) < 0.5 ? true : false;

}

// Circle

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

My::Circle::Circle(glm::vec2 location, float radius) : Shape(location, radius) {

this->deg = ofRandom(360);

}

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

void My::Circle::draw() {

ofPushMatrix();

ofTranslate(this->location);

ofRotate(this->deg);

this->fill ? ofFill() : ofNoFill();

ofSetColor(39);

ofDrawCircle(glm::vec2(), this->radius);

float tmp_radius = ofNoise(this->location.x * 0.005, this->location.y * 0.005, ofGetFrameNum() * 0.005) * this->radius;

this->fill ? ofSetColor(239) : ofFill();

ofBeginShape();

for (int deg = 0; deg < 360; deg += 36) {

if (deg % 72 == 0) {

ofVertex(tmp_radius * cos(deg * DEG_TO_RAD), tmp_radius * sin(deg * DEG_TO_RAD));

}

else {

ofVertex(tmp_radius * 0.5 * cos(deg * DEG_TO_RAD), tmp_radius * 0.5 * sin(deg * DEG_TO_RAD));

}

ofEndShape(true);

ofPopMatrix();

}

// Rectangle

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

My::Rectangle::Rectangle(glm::vec2 location, float radius) : Shape(location, radius) {

this->len = radius * sqrt(2);

this->speed = ofRandom(0.5, 3);

this->direction = ofRandom(1) < 0.5 ? -1 : 1;

}

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

void My::Rectangle::draw() {

ofPushMatrix();

ofTranslate(this->location);

ofRotate(ofGetFrameNum() * this->speed * this->direction);

this->fill ? ofFill() : ofNoFill();

ofSetColor(39);

ofDrawRectangle(glm::vec2(), this->len, this->len);

ofPopMatrix();

}

// Path

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

My::Path::Path(glm::vec2 location, float radius, ofPath path) : Shape(location, radius) {

this->path = path;

this->rotate = ofRandom(360);

}

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

void My::Path::draw() {

this->fill ? ofFill() : ofNoFill();

auto tmp_radius = this->radius * 1.5;

ofPushMatrix();

ofTranslate(this->location);

ofRotate(this->rotate++);

auto outline = path.getOutline();

ofBeginShape();

for (int line_index = 0; line_index < outline.size(); line_index++) {

if (line_index != 0) { ofNextContour(true); }

auto vertices = outline[line_index].getVertices();

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

ofVertex((vertices[i] / 300 * tmp_radius) + glm::vec2(tmp_radius * -0.5, tmp_radius * 0.5));

}

ofEndShape(true);

ofPopMatrix();

}

[ Link ]
https://github.com/junkiyoshi/Insta20190622

2019年6月21日2019年6月21日

Lattice. openFrameworks

[ Video ]

[ About ]
格子！格子！格子！

Lattice! Lattice! Lattice!

[ Source ]

#pragma once
#include "ofMain.h"
#include <random>
#include <algorithm>

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) {};

	glm::vec2 make_point(int len, int param);

	vector<int> params;
	vector<ofColor> colors;
};

#pragma once

#include "ofMain.h"

#include <random>

#include <algorithm>

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) {};

glm::vec2 make_point(int len, int param);

vector<int> params;

vector<ofColor> colors;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(3);
}

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

}

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

	ofTranslate(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5));

	int len = 720;
	if (ofGetFrameNum() % 2 == 0) {

		ofColor color;
		color.setHsb((int)ofRandom(ofGetFrameNum(), ofGetFrameNum() + 50) % 255, 200, 255);

		this->params.push_back(ofRandom(0, 50));
		this->colors.push_back(color);
	}

	while (this->params.size() > 120) {

		this->params.erase(this->params.begin());
		this->colors.erase(this->colors.begin());
	}

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

		int p = this->params[i] * 2;
		if (p > 50) {

			ofPushMatrix();
			ofRotate(90);
		}

		vector<glm::vec2> vertices;
		vertices.push_back(this->make_point(len, p));
		vertices.push_back(this->make_point(len, p + 1));
		vertices.push_back(this->make_point(len, 100 - p - 1));
		vertices.push_back(this->make_point(len, 100 - p));

		ofFill();
		ofSetColor(this->colors[i], ofMap(i, 0, this->params.size(), 32, 255));
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(39, ofMap(i, 0, this->params.size(), 32, 255));
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		if (p > 50) { ofPopMatrix(); }
	}

}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(3);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5));

int len = 720;

if (ofGetFrameNum() % 2 == 0) {

ofColor color;

color.setHsb((int)ofRandom(ofGetFrameNum(), ofGetFrameNum() + 50) % 255, 200, 255);

this->params.push_back(ofRandom(0, 50));

this->colors.push_back(color);

}

while (this->params.size() > 120) {

this->params.erase(this->params.begin());

this->colors.erase(this->colors.begin());

}

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

int p = this->params[i] * 2;

if (p > 50) {

ofPushMatrix();

ofRotate(90);

}

vector<glm::vec2> vertices;

vertices.push_back(this->make_point(len, p));

vertices.push_back(this->make_point(len, p + 1));

vertices.push_back(this->make_point(len, 100 - p - 1));

vertices.push_back(this->make_point(len, 100 - p));

ofFill();

ofSetColor(this->colors[i], ofMap(i, 0, this->params.size(), 32, 255));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39, ofMap(i, 0, this->params.size(), 32, 255));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (p > 50) { ofPopMatrix(); }

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190621

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