2022年3月 – ページ 4 – プログラミング de 落描き

2022年3月22日

Diamond shape. Draw by openFrameworks

[ Video ]

[ About ]
ひし形を切り替える。

Switching rhombus.

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

	ofFbo fbo;
	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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);

	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() {

	ofSeedRandom(39);

	this->fbo.begin();
	ofClear(0);
	
	ofTranslate(ofGetWindowSize() * 0.5);

	int span = 40;
	for (int x = span * -8; x < span * 8; x += span) {

		for (int y = span * -8; y < span * 8; y += span) {

			vector<glm::vec2> vertices;

			int r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, 4);
			auto location = glm::vec2(x, y);

			if (r == 1) {

				location += glm::vec2(span, 0);
			}
			else if (r == 2) {

				location += glm::vec2(span, span);
			}
			else if (r == 3) {

				location += glm::vec2(0, span);
			}

			int deg_start = r * 90;
			int radius = span;
			for (int deg = deg_start; deg <= deg_start + 90; deg += 45) {

				vertices.push_back(location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}

			r = (r + 2) % 4;

			location = glm::vec2(x, y);
			if (r == 1) {

				location += glm::vec2(span, 0);
			}
			else if (r == 2) {

				location += glm::vec2(span, span);
			}
			else if (r == 3) {

				location += glm::vec2(0, span);
			}

			deg_start = r * 90;
			for (int deg = deg_start; deg <= deg_start + 90; deg += 45) {

				vertices.push_back(location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}

			ofSetColor(0);
			ofNoFill();
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}
	}

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

	cv::Mat gray_mat, bit_mat;
	cv::cvtColor(this->pixels_mat, gray_mat, cv::COLOR_RGB2GRAY);
	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(139, 139, 139, 255);
			}
		}
	}

	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(0, 0);

	this->fbo.draw(-10, -10);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetLineWidth(2);

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() {

ofSeedRandom(39);

this->fbo.begin();

ofClear(0);

ofTranslate(ofGetWindowSize() * 0.5);

int span = 40;

for (int x = span * -8; x < span * 8; x += span) {

for (int y = span * -8; y < span * 8; y += span) {

vector<glm::vec2> vertices;

int r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 0, 4);

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

if (r == 1) {

location += glm::vec2(span, 0);

}

else if (r == 2) {

location += glm::vec2(span, span);

}

else if (r == 3) {

location += glm::vec2(0, span);

}

int deg_start = r * 90;

int radius = span;

for (int deg = deg_start; deg <= deg_start + 90; deg += 45) {

vertices.push_back(location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

r = (r + 2) % 4;

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

if (r == 1) {

location += glm::vec2(span, 0);

}

else if (r == 2) {

location += glm::vec2(span, span);

}

else if (r == 3) {

location += glm::vec2(0, span);

}

deg_start = r * 90;

for (int deg = deg_start; deg <= deg_start + 90; deg += 45) {

vertices.push_back(location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

ofSetColor(0);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

this->fbo.end();

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

cv::Mat gray_mat, bit_mat;

cv::cvtColor(this->pixels_mat, gray_mat, cv::COLOR_RGB2GRAY);

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(139, 139, 139, 255);

}

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(0, 0);

this->fbo.draw(-10, -10);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220322

[ほしいものリスト]
Amazon

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2022年3月21日

Character sphere. Draw by openFrameworks

[ Video ]

[ About ]
球体を文字で埋める。

Fill the sphere with letters.

[ 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) {};

	ofEasyCam cam;

	vector<glm::vec3> location_list;
	vector<float> radius_list;
	vector<glm::vec3> base_location_list;

	vector<ofPath> chara_path;
};

#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) {};

ofEasyCam cam;

vector<glm::vec3> location_list;

vector<float> radius_list;

vector<glm::vec3> base_location_list;

vector<ofPath> chara_path;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(1, 5);
	this->base_location_list = ico_sphere.getMesh().getVertices();

	while (this->location_list.size() < 400) {

		int index = ofRandom(this->base_location_list.size());
		auto tmp_location = this->base_location_list[index];
		tmp_location = glm::normalize(tmp_location) * ofRandom(0, 95);

		auto radius = this->location_list.size() < 110 ? ofRandom(10, 50) : ofRandom(3, 20);

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

			if (glm::distance(tmp_location, location_list[i]) < this->radius_list[i] + radius) {

				flag = false;
				break;
			}
		}

		if (flag) {

			this->location_list.push_back(tmp_location);
			this->radius_list.push_back(radius);
		}
	}

	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);

	for (char c = 'A'; c <= 'Z'; c++) {

		this->chara_path.push_back(font.getCharacterAsPoints(c, true, false));
	}
}

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

	ofSeedRandom(39);
}

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

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

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

		ofPushMatrix();
		ofTranslate(this->location_list[i]);

		ofRotateZ(ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, -360, 360));
		ofRotateY(ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, -360, 360));
		ofRotateX(ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, -360, 360));

		int chara_index = i % this->chara_path.size();
		chara_index = (int)(chara_index + ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, ofGetFrameNum() * 0.00015)), 0, 1, 0, chara_path.size())) % chara_path.size();

		auto font_size = radius_list[i] * 1.5;
		auto outline = this->chara_path[chara_index].getOutline();

		ofFill();
		ofSetColor(255);
		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 vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

				auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);
				ofVertex(point);
			}
		}
		ofEndShape(true);

		ofNoFill();
		ofSetColor(0);
		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 vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

				auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);
				ofVertex(point);
			}
		}
		ofEndShape(true);

		ofPopMatrix();
	}

	this->cam.end();
}


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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(3);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(1, 5);

this->base_location_list = ico_sphere.getMesh().getVertices();

while (this->location_list.size() < 400) {

int index = ofRandom(this->base_location_list.size());

auto tmp_location = this->base_location_list[index];

tmp_location = glm::normalize(tmp_location) * ofRandom(0, 95);

auto radius = this->location_list.size() < 110 ? ofRandom(10, 50) : ofRandom(3, 20);

bool flag = true;

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

if (glm::distance(tmp_location, location_list[i]) < this->radius_list[i] + radius) {

flag = false;

break;

}

if (flag) {

this->location_list.push_back(tmp_location);

this->radius_list.push_back(radius);

}

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);

for (char c = 'A'; c <= 'Z'; c++) {

this->chara_path.push_back(font.getCharacterAsPoints(c, true, false));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

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

ofPushMatrix();

ofTranslate(this->location_list[i]);

ofRotateZ(ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, -360, 360));

ofRotateY(ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, -360, 360));

ofRotateX(ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, -360, 360));

int chara_index = i % this->chara_path.size();

chara_index = (int)(chara_index + ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, ofGetFrameNum() * 0.00015)), 0, 1, 0, chara_path.size())) % chara_path.size();

auto font_size = radius_list[i] * 1.5;

auto outline = this->chara_path[chara_index].getOutline();

ofFill();

ofSetColor(255);

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 vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);

ofVertex(point);

}

ofEndShape(true);

ofNoFill();

ofSetColor(0);

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 vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);

ofVertex(point);

}

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220321

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2022年3月20日

Hexagon plate. Draw by openframeworks

[ Video ]

[ About ]

[ 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 setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height);

	vector<glm::vec3> location_list;
	vector<int> life_list;
	vector<float> noise_param_list;
	vector<glm::vec3> noise_location_list;

	ofEasyCam cam;
	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 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 setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height);

vector<glm::vec3> location_list;

vector<int> life_list;

vector<float> noise_param_list;

vector<glm::vec3> noise_location_list;

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(45);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	auto radius = 8;
	auto x_span = radius * sqrt(3);
	auto flg = true;
	for (float y = -500; y < 500; y += radius * 1.5) {

		for (float x = -500; x < 500; x += x_span) {

			glm::vec3 location;
			if (flg) {

				location = glm::vec3(x, y, 0);
			}
			else {

				location = glm::vec3(x + (x_span / 2), y, 0);
			}

			this->location_list.push_back(location);
			this->life_list.push_back(0);
			this->noise_param_list.push_back(ofRandom(1000));
		}
		flg = !flg;
	}

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

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

	ofSeedRandom(39);

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

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

		this->life_list[i] = this->life_list[i] > 0 ? this->life_list[i] - 0.05 : 0;
		if (this->life_list[i] > 0) {

			this->noise_param_list[i] += ofMap(this->life_list[i], 0, 100, 0.05, 0.1);
		}
	}

	for (int i = 0; i < 1; i++) {

		int deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -360, 360);
		int radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 0, 400);

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

			auto noise_location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);
			this->noise_location_list.push_back(noise_location);
			for (int i = 0; i < this->location_list.size(); i++) {

				if (glm::distance(noise_location, this->location_list[i]) < 35) {

					this->life_list[i] = this->life_list[i] < 100 ? this->life_list[i] + 8 : 100;
				}
			}
		}
	}

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

		auto height = 5.f;
		if (this->life_list[i] > 10) {

			this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height);
		}
		else if (this->life_list[i] > 0) {

			this->setHexagonToMesh(this->face, this->frame, this->location_list[i], ofMap(this->life_list[i], 0, 10, 0, 8), height);
		}
		else {

			//this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 15, height);
		}
	}
}

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

	this->cam.begin();

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

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height) {

	ofColor face_color = ofColor(255);
	ofColor frame_color = ofColor(0);

	for (int deg = 90; deg < 450; deg += 60) {

		auto face_radius = radius - 0.5;
		auto face_index = face_target.getNumVertices();

		vector<glm::vec3> vertices;
		vertices.push_back(location + glm::vec3(0, 0, 0));
		vertices.push_back(location + glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(0, 0, height));
		vertices.push_back(location + glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), height));
		vertices.push_back(location + glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), height));

		face_target.addVertices(vertices);

		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);
		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);
		face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 4);
		face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

		auto frame_index = frame_target.getNumVertices();

		vertices.clear();
		vertices.push_back(location + glm::vec3(0, 0, 0));
		vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(0, 0, height));
		vertices.push_back(location + glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), height));
		vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height));

		frame_target.addVertices(vertices);

		frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);
		frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 4);

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

			face_target.addColor(face_color);
			frame_target.addColor(frame_color);
		}
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(45);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetLineWidth(3);

ofEnableDepthTest();

auto radius = 8;

auto x_span = radius * sqrt(3);

auto flg = true;

for (float y = -500; y < 500; y += radius * 1.5) {

for (float x = -500; x < 500; x += x_span) {

glm::vec3 location;

if (flg) {

location = glm::vec3(x, y, 0);

}

else {

location = glm::vec3(x + (x_span / 2), y, 0);

}

this->location_list.push_back(location);

this->life_list.push_back(0);

this->noise_param_list.push_back(ofRandom(1000));

}

flg = !flg;

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

this->noise_location_list.clear();

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

this->life_list[i] = this->life_list[i] > 0 ? this->life_list[i] - 0.05 : 0;

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

this->noise_param_list[i] += ofMap(this->life_list[i], 0, 100, 0.05, 0.1);

}

for (int i = 0; i < 1; i++) {

int deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -360, 360);

int radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 0, 400);

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

auto noise_location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

this->noise_location_list.push_back(noise_location);

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

if (glm::distance(noise_location, this->location_list[i]) < 35) {

this->life_list[i] = this->life_list[i] < 100 ? this->life_list[i] + 8 : 100;

}

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

auto height = 5.f;

if (this->life_list[i] > 10) {

this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height);

}

else if (this->life_list[i] > 0) {

this->setHexagonToMesh(this->face, this->frame, this->location_list[i], ofMap(this->life_list[i], 0, 10, 0, 8), height);

}

else {

//this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 15, height);

}

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

void ofApp::draw() {

this->cam.begin();

this->face.draw();

this->frame.draw();

this->cam.end();

}

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

void ofApp::setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height) {

ofColor face_color = ofColor(255);

ofColor frame_color = ofColor(0);

for (int deg = 90; deg < 450; deg += 60) {

auto face_radius = radius - 0.5;

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(location + glm::vec3(0, 0, 0));

vertices.push_back(location + glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(location + glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), 0));

vertices.push_back(location + glm::vec3(0, 0, height));

vertices.push_back(location + glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), height));

vertices.push_back(location + glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), height));

face_target.addVertices(vertices);

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

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 4);

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

auto frame_index = frame_target.getNumVertices();

vertices.clear();

vertices.push_back(location + glm::vec3(0, 0, 0));

vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(location + glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), 0));

vertices.push_back(location + glm::vec3(0, 0, height));

vertices.push_back(location + glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), height));

vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height));

frame_target.addVertices(vertices);

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

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

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

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 4);

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

face_target.addColor(face_color);

frame_target.addColor(frame_color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220320

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