ofMesh – ページ 205 – プログラミング de 落描き

2020年1月25日

Noisy rectangular. openFrameworks

[ Video ]

[ About ]
ノイジー長方形。

Noisy rectangular.

[ 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) {};

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

	ofEasyCam cam;
	ofMesh mesh, frame;
};

#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) {};

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

ofEasyCam cam;

ofMesh mesh, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	int len = 300;
	int width = 20;
	for (int z = -len; z <= len; z += width) {

		int start_param = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 100, 200);
		int noise_value = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 25, 100);
		int end_param = start_param + noise_value;
		int start_index = this->mesh.getNumVertices();
		for (int param = start_param; param <= end_param; param++) {

			int index = mesh.getNumVertices() - 2;

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(this->make_point(len, param), z + width * 0.5));
			vertices.push_back(glm::vec3(this->make_point(len, param), z - width * 0.5));

			mesh.addVertices(vertices);
			frame.addVertices(vertices);

			if (index > start_index) {

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

				frame.addIndex(index + 0); frame.addIndex(index + 2);
				frame.addIndex(index + 1); frame.addIndex(index + 3);
			}

			if (param % 25 == 0) {

				frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 2);
			}
		}

		frame.addIndex(start_index); frame.addIndex(start_index + 1);
		frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 2);
	}
}

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

	this->cam.begin();
	ofRotateX(90);
	ofRotateZ(45);

	ofSetColor(39);
	this->mesh.draw();

	ofSetColor(239);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
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());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(1.5);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

this->frame.clear();

int len = 300;

int width = 20;

for (int z = -len; z <= len; z += width) {

int start_param = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 100, 200);

int noise_value = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 25, 100);

int end_param = start_param + noise_value;

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

for (int param = start_param; param <= end_param; param++) {

int index = mesh.getNumVertices() - 2;

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(this->make_point(len, param), z + width * 0.5));

vertices.push_back(glm::vec3(this->make_point(len, param), z - width * 0.5));

mesh.addVertices(vertices);

frame.addVertices(vertices);

if (index > start_index) {

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

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

frame.addIndex(index + 0); frame.addIndex(index + 2);

frame.addIndex(index + 1); frame.addIndex(index + 3);

}

if (param % 25 == 0) {

frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 2);

}

frame.addIndex(start_index); frame.addIndex(start_index + 1);

frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 2);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

ofRotateZ(45);

ofSetColor(39);

this->mesh.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

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/Insta20200125

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2020年1月23日2020年1月23日

Visualize logs with boxes. openFrameworks

[ Video ]

[ About ]
ノイズで移動する軌跡を箱で描写。

Visualize logs with boxes.

[ 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) {};

	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor color);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor color);

	ofEasyCam cam;
	ofMesh face_mesh, frame_mesh;

	float len;
	vector<glm::vec3> box_location_list;
	vector<float> alpah_param_list;
};

#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) {};

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor color);

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor color);

ofEasyCam cam;

ofMesh face_mesh, frame_mesh;

float len;

vector<glm::vec3> box_location_list;

vector<float> alpah_param_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->len = 8;
	for (auto x = -200; x <= 200; x += this->len) {

		for (auto y = -200; y <= 200; y += this->len) {

			for (auto z = -200; z <= 200; z += this->len) {

				this->box_location_list.push_back(glm::vec3(x, y, z));
				this->alpah_param_list.push_back(0);
			}
		}
	}

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

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

	ofSeedRandom(39);

	this->face_mesh.clear();
	this->frame_mesh.clear();

	auto noise_location = glm::vec3(
		ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -200, 200), 
		ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -200, 200),
		ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -200, 200));

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

		auto distance = glm::distance(this->box_location_list[i], noise_location);
		if (distance < 25) {

			this->alpah_param_list[i] = 100;
		}
		else {

			this->alpah_param_list[i] = this->alpah_param_list[i] > 0 ? this->alpah_param_list[i] - 1 : 0;
		}
	}

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

		if (this->alpah_param_list[i] > 0) {

			this->setBoxToMesh(this->face_mesh, this->frame_mesh, this->box_location_list[i], this->len, ofColor(39, this->alpah_param_list[i] > 50 ? 255 : ofMap(this->alpah_param_list[i], 50, 0, 255, 0)));
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.25);
	ofRotateX(ofGetFrameNum() * 0.15);

	this->face_mesh.drawFaces();
	this->frame_mesh.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor color) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size, color);
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor color) {

	int index = face_target.getVertices().size();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

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

	face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 6);
	face_target.addIndex(index + 4); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

	face_target.addIndex(index + 0); face_target.addIndex(index + 4); face_target.addIndex(index + 1);
	face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);

	face_target.addIndex(index + 1); face_target.addIndex(index + 5); face_target.addIndex(index + 6);
	face_target.addIndex(index + 6); face_target.addIndex(index + 2); face_target.addIndex(index + 1);

	face_target.addIndex(index + 2); face_target.addIndex(index + 6); face_target.addIndex(index + 7);
	face_target.addIndex(index + 7); face_target.addIndex(index + 3); face_target.addIndex(index + 2);

	face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);
	face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(index + 3);

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

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

	frame_target.addIndex(index + 4); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 5); frame_target.addIndex(index + 6);
	frame_target.addIndex(index + 6); frame_target.addIndex(index + 7);
	frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 6);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 7);

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

		face_target.addColor(color);
		frame_target.addColor(ofColor(239));
	}
}

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

	ofSetupOpenGL(710, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

this->len = 8;

for (auto x = -200; x <= 200; x += this->len) {

for (auto y = -200; y <= 200; y += this->len) {

for (auto z = -200; z <= 200; z += this->len) {

this->box_location_list.push_back(glm::vec3(x, y, z));

this->alpah_param_list.push_back(0);

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face_mesh.clear();

this->frame_mesh.clear();

auto noise_location = glm::vec3(

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -200, 200),

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -200, 200));

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

auto distance = glm::distance(this->box_location_list[i], noise_location);

if (distance < 25) {

this->alpah_param_list[i] = 100;

}

else {

this->alpah_param_list[i] = this->alpah_param_list[i] > 0 ? this->alpah_param_list[i] - 1 : 0;

}

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

if (this->alpah_param_list[i] > 0) {

this->setBoxToMesh(this->face_mesh, this->frame_mesh, this->box_location_list[i], this->len, ofColor(39, this->alpah_param_list[i] > 50 ? 255 : ofMap(this->alpah_param_list[i], 50, 0, 255, 0)));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.25);

ofRotateX(ofGetFrameNum() * 0.15);

this->face_mesh.drawFaces();

this->frame_mesh.drawWireframe();

this->cam.end();

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor color) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size, color);

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor color) {

int index = face_target.getVertices().size();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

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

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

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 6);

face_target.addIndex(index + 4); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

face_target.addIndex(index + 0); face_target.addIndex(index + 4); face_target.addIndex(index + 1);

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);

face_target.addIndex(index + 1); face_target.addIndex(index + 5); face_target.addIndex(index + 6);

face_target.addIndex(index + 6); face_target.addIndex(index + 2); face_target.addIndex(index + 1);

face_target.addIndex(index + 2); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

face_target.addIndex(index + 7); face_target.addIndex(index + 3); face_target.addIndex(index + 2);

face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

frame_target.addIndex(index + 0); frame_target.addIndex(index + 1);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);

frame_target.addIndex(index + 3); frame_target.addIndex(index + 0);

frame_target.addIndex(index + 4); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 5); frame_target.addIndex(index + 6);

frame_target.addIndex(index + 6); frame_target.addIndex(index + 7);

frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 6);

frame_target.addIndex(index + 3); frame_target.addIndex(index + 7);

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

face_target.addColor(color);

frame_target.addColor(ofColor(239));

}

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

int main() {

ofSetupOpenGL(710, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200123

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2020年1月21日2020年1月21日

Circles was splitted. openFrameworks

[ Video ]

[ About ]
円を分割する。を色を交互に変えながら見比べる。

Circles was splitted.

[ 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) {};

	ofMesh face, frame;
};

#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) {};

ofMesh face, frame;

};

#include "ofApp.h"

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

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

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

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

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

	this->face.clear();
	this->frame.clear();

	int radius = 60;
	int len = 40;
	int deg_span = 8;
	int x_span = 256;
	int y_span = 240;
	bool flg = true;
	for (int x = x_span * 0.5; x < ofGetWidth(); x += x_span) {

		for (int y = y_span * 0.5; y < ofGetHeight(); y += y_span) {

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

				int index = this->face.getNumVertices();
				auto noise_param = glm::vec2(x + cos((deg + deg_span * 0.5) * DEG_TO_RAD), y + sin((deg + deg_span * 0.5) * DEG_TO_RAD));
				auto noise_value = ofNoise(noise_param.x, noise_param.y, ofGetFrameNum() * 0.01);

				auto tmp_radius = radius;
				if (noise_value > 0.75) { tmp_radius += ofMap(noise_value, 0.75, 1, 0, 40); }
				if (noise_value < 0.25) { tmp_radius -= ofMap(noise_value, 0.25, 0, 0, 40); }

				vector<glm::vec3> vertices;
				vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius + len * 0.5) * cos(deg * DEG_TO_RAD), (tmp_radius + len * 0.5) * sin(deg * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius + len * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (tmp_radius + len * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius - len * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (tmp_radius - len * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius - len * 0.5) * cos(deg * DEG_TO_RAD), (tmp_radius - len * 0.5) * sin(deg * DEG_TO_RAD), 0));

				this->face.addVertices(vertices);
				this->frame.addVertices(vertices);

				this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);
				this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

				this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);
				this->frame.addIndex(index + 1); this->frame.addIndex(index + 2);
				this->frame.addIndex(index + 2); this->frame.addIndex(index + 3);
				this->frame.addIndex(index + 3); this->frame.addIndex(index + 0);

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

					this->face.addColor(flg ? ofColor(39) : ofColor(239));
					this->frame.addColor(flg ? ofColor(239) : ofColor(39));
				}
			}

			flg = !flg;
		}
	}
}

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

	this->face.draw();
	this->frame.drawWireframe();
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(1.5);

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

int radius = 60;

int len = 40;

int deg_span = 8;

int x_span = 256;

int y_span = 240;

bool flg = true;

for (int x = x_span * 0.5; x < ofGetWidth(); x += x_span) {

for (int y = y_span * 0.5; y < ofGetHeight(); y += y_span) {

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

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

auto noise_param = glm::vec2(x + cos((deg + deg_span * 0.5) * DEG_TO_RAD), y + sin((deg + deg_span * 0.5) * DEG_TO_RAD));

auto noise_value = ofNoise(noise_param.x, noise_param.y, ofGetFrameNum() * 0.01);

auto tmp_radius = radius;

if (noise_value > 0.75) { tmp_radius += ofMap(noise_value, 0.75, 1, 0, 40); }

if (noise_value < 0.25) { tmp_radius -= ofMap(noise_value, 0.25, 0, 0, 40); }

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius + len * 0.5) * cos(deg * DEG_TO_RAD), (tmp_radius + len * 0.5) * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius + len * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (tmp_radius + len * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius - len * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (tmp_radius - len * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius - len * 0.5) * cos(deg * DEG_TO_RAD), (tmp_radius - len * 0.5) * sin(deg * DEG_TO_RAD), 0));

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);

this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);

this->frame.addIndex(index + 1); this->frame.addIndex(index + 2);

this->frame.addIndex(index + 2); this->frame.addIndex(index + 3);

this->frame.addIndex(index + 3); this->frame.addIndex(index + 0);

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

this->face.addColor(flg ? ofColor(39) : ofColor(239));

this->frame.addColor(flg ? ofColor(239) : ofColor(39));

}

flg = !flg;

}

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

void ofApp::draw() {

this->face.draw();

this->frame.drawWireframe();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200121

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