noise – ページ 229 – プログラミング de 落描き

2020年9月29日2020年9月29日

usuzumi random walk. Draw by openframeworks

[ Video ]

[ About ]
usuzumi random walk.

[ 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("openframeworks");

	ofBackground(239);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

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

	for (int k = 0; k < 2; k++) {

		auto head_size = 10;

		ofMesh mesh;
		vector<glm::vec3> right, left, frame;
		auto noise_seed_deg = ofRandom(1000);
		auto noise_seed_radius = ofRandom(1000);

		glm::vec3 last_location;
		float last_theta;

		int len = 80;
		for (int i = 0; i < len; i++) {

			auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.001), 0, 1, -360, 360);
			auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -360, 360);
			auto next_noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i + 1) * 0.001), 0, 1, -360, 360);
			auto next_noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i + 1) * 0.01), 0, 1, -360, 360);

			auto location = glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0);
			auto next = glm::vec3(next_noise_radius * cos(next_noise_deg * DEG_TO_RAD), next_noise_radius * sin(next_noise_deg * DEG_TO_RAD), 0);

			auto direction = next - location;
			auto theta = atan2(direction.y, direction.x);

			right.push_back(location + glm::vec3(ofMap(i, 0, len, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, len, 0, head_size) * sin(theta + PI * 0.5), 0));
			left.push_back(location + glm::vec3(ofMap(i, 0, len, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, len, 0, head_size) * sin(theta - PI * 0.5), 0));

			last_location = location;
			last_theta = theta;
		}

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

			mesh.addVertex(left[i]);
			mesh.addVertex(right[i]);

			mesh.addColor(ofColor(39, ofMap(i, 0, len, 0, 255)));
			mesh.addColor(ofColor(39, ofMap(i, 0, len, 0, 255)));
		}

		for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

			mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);
			mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);
		}

		mesh.addVertex(last_location);
		mesh.addColor(ofColor(39));
		int index = mesh.getNumVertices();
		for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

			mesh.addVertex(last_location + glm::vec3(head_size * cos(theta), head_size * sin(theta), 0));
			mesh.addColor(ofColor(39));
			frame.push_back(last_location + glm::vec3(head_size * cos(theta), head_size * sin(theta), 0));
		}

		for (int i = index; i < mesh.getNumVertices() - 1; i++) {

			mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);
		}

		int deg_span = 60;
		for (int deg = 0; deg < 360; deg += deg_span) {

			ofRotate(deg_span);

			mesh.draw();
		}
	}
}

//--------------------------------------------------------------
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);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

for (int k = 0; k < 2; k++) {

auto head_size = 10;

ofMesh mesh;

vector<glm::vec3> right, left, frame;

auto noise_seed_deg = ofRandom(1000);

auto noise_seed_radius = ofRandom(1000);

glm::vec3 last_location;

float last_theta;

int len = 80;

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

auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.001), 0, 1, -360, 360);

auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -360, 360);

auto next_noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i + 1) * 0.001), 0, 1, -360, 360);

auto next_noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i + 1) * 0.01), 0, 1, -360, 360);

auto location = glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0);

auto next = glm::vec3(next_noise_radius * cos(next_noise_deg * DEG_TO_RAD), next_noise_radius * sin(next_noise_deg * DEG_TO_RAD), 0);

auto direction = next - location;

auto theta = atan2(direction.y, direction.x);

right.push_back(location + glm::vec3(ofMap(i, 0, len, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, len, 0, head_size) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(i, 0, len, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, len, 0, head_size) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

}

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

mesh.addVertex(left[i]);

mesh.addVertex(right[i]);

mesh.addColor(ofColor(39, ofMap(i, 0, len, 0, 255)));

}

for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);

mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);

}

mesh.addVertex(last_location);

mesh.addColor(ofColor(39));

int index = mesh.getNumVertices();

for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

mesh.addVertex(last_location + glm::vec3(head_size * cos(theta), head_size * sin(theta), 0));

mesh.addColor(ofColor(39));

frame.push_back(last_location + glm::vec3(head_size * cos(theta), head_size * sin(theta), 0));

}

for (int i = index; i < mesh.getNumVertices() - 1; i++) {

mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);

}

int deg_span = 60;

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

ofRotate(deg_span);

mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200929

2020年9月27日2020年9月27日

Twisting video. Draw by openFrameworks

[ Video ]

[ About ]
Twisting video.

[ 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) {};

	cv::VideoCapture cap;
	cv::Size cap_size;
	cv::Mat frame;
	ofImage image;
	int number_of_frames;
	vector<cv::Mat> frame_list;

	ofEasyCam cam;
	ofMesh mesh, mesh_frame;
};

#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) {};

cv::VideoCapture cap;

cv::Size cap_size;

cv::Mat frame;

ofImage image;

int number_of_frames;

vector<cv::Mat> frame_list;

ofEasyCam cam;

ofMesh mesh, mesh_frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->cap.open("D:\\MP4\\production ID_3761468.mp4");
	this->cap_size = cv::Size(640, 360);

	this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

	this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT);
	for (int i = 0; i < this->number_of_frames; i++) {

		cv::Mat src, tmp;
		this->cap >> src;
		if (src.empty()) {

			continue;
		}

		cv::resize(src, tmp, this->cap_size);
		cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

		this->frame_list.push_back(tmp);
	}

	this->mesh_frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	this->mesh.clear();
	this->mesh_frame.clear();

	int n = (int)(ofGetFrameNum() * 0.54) % this->number_of_frames;
	this->frame_list[n].copyTo(this->frame);
	this->image.update();

	int span = 10;
	for (int x = this->cap_size.width * -0.5; x < this->cap_size.width * 0.5; x += span) {

		auto angle = ofMap(ofNoise(x * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -PI * 2, PI * 2);
		auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));

		auto next_angle = ofMap(ofNoise((x + span) * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -PI * 2, PI * 2);
		auto next_rotation = glm::rotate(glm::mat4(), next_angle, glm::vec3(1, 0, 0));

		for (int y = this->cap_size.height * -0.5; y < this->cap_size.height * 0.5; y += span) {

			int index = this->mesh.getNumVertices();

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec4(x, y, 0, 0) * rotation);
			vertices.push_back(glm::vec4(x + span, y, 0, 0) * next_rotation);
			vertices.push_back(glm::vec4(x + span, y + span, 0, 0) * next_rotation);
			vertices.push_back(glm::vec4(x, y + span, 0, 0) * rotation);

			this->mesh.addVertices(vertices);

			this->mesh.addTexCoord(glm::vec3(x + this->cap_size.width * 0.5, y + this->cap_size.height * 0.5, 0));
			this->mesh.addTexCoord(glm::vec3(x + span + this->cap_size.width * 0.5, y + this->cap_size.height * 0.5, 0));
			this->mesh.addTexCoord(glm::vec3(x + span + this->cap_size.width * 0.5, y + span + this->cap_size.height * 0.5, 0));
			this->mesh.addTexCoord(glm::vec3(x + this->cap_size.width * 0.5, y + span + this->cap_size.height * 0.5, 0));

			mesh.addIndex(index + 0); mesh.addIndex(index + 1); mesh.addIndex(index + 2);
			mesh.addIndex(index + 0); mesh.addIndex(index + 2); mesh.addIndex(index + 3);

			if (x == this->cap_size.width * -0.5) {

				int mesh_frame_index = this->mesh_frame.getNumVertices();

				this->mesh_frame.addVertex(vertices[0]);
				this->mesh_frame.addVertex(vertices[3]);

				this->mesh_frame.addIndex(mesh_frame_index + 0);
				this->mesh_frame.addIndex(mesh_frame_index + 1);
			}

			if (x == this->cap_size.width * 0.5 - span) {

				int mesh_frame_index = this->mesh_frame.getNumVertices();

				this->mesh_frame.addVertex(vertices[1]);
				this->mesh_frame.addVertex(vertices[2]);

				this->mesh_frame.addIndex(mesh_frame_index + 0);
				this->mesh_frame.addIndex(mesh_frame_index + 1);
			}

			if (y == this->cap_size.height * -0.5) {

				int mesh_frame_index = this->mesh_frame.getNumVertices();

				this->mesh_frame.addVertex(vertices[0]);
				this->mesh_frame.addVertex(vertices[1]);

				this->mesh_frame.addIndex(mesh_frame_index + 0);
				this->mesh_frame.addIndex(mesh_frame_index + 1);
			}

			if (y == this->cap_size.height * 0.5 - span) {

				int mesh_frame_index = this->mesh_frame.getNumVertices();

				this->mesh_frame.addVertex(vertices[2]);
				this->mesh_frame.addVertex(vertices[3]);

				this->mesh_frame.addIndex(mesh_frame_index + 0);
				this->mesh_frame.addIndex(mesh_frame_index + 1);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(180);

	ofSetColor(255);
	this->image.bind();
	this->mesh.draw();
	this->image.unbind();

	ofSetColor(39);
	this->mesh_frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
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);

ofEnableDepthTest();

this->cap.open("D:\\MP4\\production ID_3761468.mp4");

this->cap_size = cv::Size(640, 360);

this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);

this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT);

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

cv::Mat src, tmp;

this->cap >> src;

if (src.empty()) {

continue;

}

cv::resize(src, tmp, this->cap_size);

cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

this->frame_list.push_back(tmp);

}

this->mesh_frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

this->mesh.clear();

this->mesh_frame.clear();

int n = (int)(ofGetFrameNum() * 0.54) % this->number_of_frames;

this->frame_list[n].copyTo(this->frame);

this->image.update();

int span = 10;

for (int x = this->cap_size.width * -0.5; x < this->cap_size.width * 0.5; x += span) {

auto angle = ofMap(ofNoise(x * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -PI * 2, PI * 2);

auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));

auto next_angle = ofMap(ofNoise((x + span) * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -PI * 2, PI * 2);

auto next_rotation = glm::rotate(glm::mat4(), next_angle, glm::vec3(1, 0, 0));

for (int y = this->cap_size.height * -0.5; y < this->cap_size.height * 0.5; y += span) {

int index = this->mesh.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec4(x, y, 0, 0) * rotation);

vertices.push_back(glm::vec4(x + span, y, 0, 0) * next_rotation);

vertices.push_back(glm::vec4(x + span, y + span, 0, 0) * next_rotation);

vertices.push_back(glm::vec4(x, y + span, 0, 0) * rotation);

this->mesh.addVertices(vertices);

this->mesh.addTexCoord(glm::vec3(x + this->cap_size.width * 0.5, y + this->cap_size.height * 0.5, 0));

this->mesh.addTexCoord(glm::vec3(x + span + this->cap_size.width * 0.5, y + this->cap_size.height * 0.5, 0));

this->mesh.addTexCoord(glm::vec3(x + span + this->cap_size.width * 0.5, y + span + this->cap_size.height * 0.5, 0));

this->mesh.addTexCoord(glm::vec3(x + this->cap_size.width * 0.5, y + span + this->cap_size.height * 0.5, 0));

mesh.addIndex(index + 0); mesh.addIndex(index + 1); mesh.addIndex(index + 2);

mesh.addIndex(index + 0); mesh.addIndex(index + 2); mesh.addIndex(index + 3);

if (x == this->cap_size.width * -0.5) {

int mesh_frame_index = this->mesh_frame.getNumVertices();

this->mesh_frame.addVertex(vertices[0]);

this->mesh_frame.addVertex(vertices[3]);

this->mesh_frame.addIndex(mesh_frame_index + 0);

this->mesh_frame.addIndex(mesh_frame_index + 1);

}

if (x == this->cap_size.width * 0.5 - span) {

int mesh_frame_index = this->mesh_frame.getNumVertices();

this->mesh_frame.addVertex(vertices[1]);

this->mesh_frame.addVertex(vertices[2]);

this->mesh_frame.addIndex(mesh_frame_index + 0);

this->mesh_frame.addIndex(mesh_frame_index + 1);

}

if (y == this->cap_size.height * -0.5) {

int mesh_frame_index = this->mesh_frame.getNumVertices();

this->mesh_frame.addVertex(vertices[0]);

this->mesh_frame.addVertex(vertices[1]);

this->mesh_frame.addIndex(mesh_frame_index + 0);

this->mesh_frame.addIndex(mesh_frame_index + 1);

}

if (y == this->cap_size.height * 0.5 - span) {

int mesh_frame_index = this->mesh_frame.getNumVertices();

this->mesh_frame.addVertex(vertices[2]);

this->mesh_frame.addVertex(vertices[3]);

this->mesh_frame.addIndex(mesh_frame_index + 0);

this->mesh_frame.addIndex(mesh_frame_index + 1);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofSetColor(255);

this->image.bind();

this->mesh.draw();

this->image.unbind();

ofSetColor(39);

this->mesh_frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200927

2020年9月24日2020年9月24日

Concentrated line. Draw by openFrameworks

[ Video ]

[ About ]
集中線。

Concentrated line.

[ 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) {};

	ofTrueTypeFont font;
};

#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) {};

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 20, true, true, true);
}

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

	ofSeedRandom(39);
}

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

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

	int radius = 100;
	for (int x = -230; x <= 230; x += 230) {

		for (int y = -230; y <= 230; y += 230) {

			ofPushMatrix();
			ofTranslate(x, y);

			vector<glm::vec2> vertices;
			for (float deg = 0; deg < 360; deg += 0.3) {

				auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				auto noise_value = ofNoise(x + location.x * 0.1, y + location.y * 0.1, ofGetFrameNum() * 0.0035);

				if (noise_value > 0.5) {

					location *= ofMap(noise_value, 0.5, 1.0, 1.0, 0.3);
				}

				vertices.push_back(location);
			}

			ofFill();
			ofSetColor(239);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

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

			string word = "Yes!";
			this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 20, true, true, true);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

int radius = 100;

for (int x = -230; x <= 230; x += 230) {

for (int y = -230; y <= 230; y += 230) {

ofPushMatrix();

ofTranslate(x, y);

vector<glm::vec2> vertices;

for (float deg = 0; deg < 360; deg += 0.3) {

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

auto noise_value = ofNoise(x + location.x * 0.1, y + location.y * 0.1, ofGetFrameNum() * 0.0035);

if (noise_value > 0.5) {

location *= ofMap(noise_value, 0.5, 1.0, 1.0, 0.3);

}

vertices.push_back(location);

}

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

string word = "Yes!";

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

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200924

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