プログラミング de 落描き – ページ 62 – クリエイティブ・コーディングによる生成物とソース

2023年10月27日

Pair ribbon.

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[ About ]
ペア・リボン。

[ 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) {};

	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

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

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

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

	ofSeedRandom(39);

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

	float x_span = 1;
	auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

	for (int x_param = -1; x_param <= 1; x_param += 2) {

		int start_index = this->face.getNumVertices();
		for (float x = 150;  x < 300; x += x_span) {

			float next_x = x + x_span;
			int index = this->face.getNumVertices();

			float angle_x = (ofGetFrameNum() + x) * 2;
			auto rotation_x = glm::rotate(glm::mat4(), angle_x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

			float angle_y = (ofGetFrameNum() + x) * 5;
			auto rotation_y = glm::rotate(glm::mat4(), angle_y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

			float next_angle_x = (ofGetFrameNum() + x + 1) * 2;
			auto next_rotation_x = glm::rotate(glm::mat4(), next_angle_x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

			float next_angle_y = (ofGetFrameNum() + x + 1) * 5;
			auto next_rotation_y = glm::rotate(glm::mat4(), next_angle_y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec4(x * x_param, 20, 0, 0) * rotation_y * rotation_x);
			vertices.push_back(glm::vec4(next_x * x_param, 20, 0, 0)* next_rotation_y* next_rotation_x);
			vertices.push_back(glm::vec4(next_x * x_param, -20, 0, 0) * next_rotation_y * next_rotation_x);
			vertices.push_back(glm::vec4(x * x_param, -20, 0, 0) * rotation_y * rotation_x);

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

		this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 3);
		this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 2.44);

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

	ofSetColor(239, 0, 0);
	this->frame.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

float x_span = 1;

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

for (int x_param = -1; x_param <= 1; x_param += 2) {

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

for (float x = 150; x < 300; x += x_span) {

float next_x = x + x_span;

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

float angle_x = (ofGetFrameNum() + x) * 2;

auto rotation_x = glm::rotate(glm::mat4(), angle_x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

float angle_y = (ofGetFrameNum() + x) * 5;

auto rotation_y = glm::rotate(glm::mat4(), angle_y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

float next_angle_x = (ofGetFrameNum() + x + 1) * 2;

auto next_rotation_x = glm::rotate(glm::mat4(), next_angle_x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

float next_angle_y = (ofGetFrameNum() + x + 1) * 5;

auto next_rotation_y = glm::rotate(glm::mat4(), next_angle_y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

vector<glm::vec3> vertices;

vertices.push_back(glm::vec4(x * x_param, 20, 0, 0) * rotation_y * rotation_x);

vertices.push_back(glm::vec4(next_x * x_param, 20, 0, 0)* next_rotation_y* next_rotation_x);

vertices.push_back(glm::vec4(next_x * x_param, -20, 0, 0) * next_rotation_y * next_rotation_x);

vertices.push_back(glm::vec4(x * x_param, -20, 0, 0) * rotation_y * rotation_x);

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

}

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

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 2.44);

ofSetColor(39);

this->face.draw();

ofSetColor(239, 0, 0);

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231027

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2023年10月26日

Circle arrows.

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[ About ]
円と矢印。

[ 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) {};

	void draw_arrow(glm::vec2 location, glm::vec2 target, float size);
};

#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) {};

void draw_arrow(glm::vec2 location, glm::vec2 target, float size);

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);
	ofSetColor(255);
}

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

}

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

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

	for (int deg = 0; deg < 360; deg += 5) {

		auto noise_location = glm::vec2(250 * cos(deg * DEG_TO_RAD), 250 * sin(deg * DEG_TO_RAD));

		auto base_1 = glm::vec2(320 * cos(deg * DEG_TO_RAD), 320 * sin(deg * DEG_TO_RAD));
		auto target_radius_1 = ofMap(ofNoise(glm::vec3(noise_location * 0.085, ofGetFrameNum() * 0.03)), 0, 1, 250, 320);
		auto target_1 = glm::vec2(target_radius_1 * cos(deg * DEG_TO_RAD), target_radius_1 * sin(deg * DEG_TO_RAD));

		auto base_2 = glm::vec2(180 * cos(deg * DEG_TO_RAD), 180 * sin(deg * DEG_TO_RAD));
		auto target_radius_2 = ofMap(ofNoise(glm::vec3(noise_location * 0.085, ofGetFrameNum() * 0.03)), 0, 1, 180, 250);
		auto target_2 = glm::vec2(target_radius_2 * cos(deg * DEG_TO_RAD), target_radius_2 * sin(deg * DEG_TO_RAD));

		this->draw_arrow(base_1, target_1, 12);
		this->draw_arrow(base_2, target_2, 12);

		auto target_radius = ofMap(ofNoise(glm::vec3(noise_location * 0.085, ofGetFrameNum() * 0.03)), 0, 1, 225, 275);
		auto target = glm::vec2(target_radius * cos(deg * DEG_TO_RAD), target_radius * sin(deg * DEG_TO_RAD));

		ofDrawCircle(target, 3);
	}
}

//--------------------------------------------------------------
void ofApp::draw_arrow(glm::vec2 location, glm::vec2 target, float size) {

	auto angle = std::atan2(target.y - location.y, target.x - location.x);
	auto distance = glm::distance(target, location);

	ofPushMatrix();
	ofTranslate(target);

	ofFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * cos(angle), size * sin(angle)));
	ofVertex(glm::vec2(size * 0.35 * cos(angle + PI * 0.5), size * 0.35 * sin(angle + PI * 0.5)));
	ofVertex(glm::vec2(size * 0.35 * cos(angle - PI * 0.5), size * 0.35 * sin(angle - PI * 0.5)));
	ofEndShape();

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.35 * cos(angle + PI * 0.5), size * 0.35 * sin(angle + PI * 0.5)) * 0.5);
	ofVertex(glm::vec2(size * 0.35 * cos(angle + PI * 0.5), size * 0.35 * sin(angle + PI * 0.5)) * 0.5 - glm::vec2(distance * cos(angle), distance * sin(angle)));
	ofVertex(glm::vec2(size * 0.35 * cos(angle - PI * 0.5), size * 0.35 * sin(angle - PI * 0.5)) * 0.5 - glm::vec2(distance * cos(angle), distance * sin(angle)));
	ofVertex(glm::vec2(size * 0.35 * cos(angle - PI * 0.5), size * 0.35 * sin(angle - PI * 0.5)) * 0.5);
	ofEndShape();

	ofPopMatrix();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetColor(255);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

for (int deg = 0; deg < 360; deg += 5) {

auto noise_location = glm::vec2(250 * cos(deg * DEG_TO_RAD), 250 * sin(deg * DEG_TO_RAD));

auto base_1 = glm::vec2(320 * cos(deg * DEG_TO_RAD), 320 * sin(deg * DEG_TO_RAD));

auto target_radius_1 = ofMap(ofNoise(glm::vec3(noise_location * 0.085, ofGetFrameNum() * 0.03)), 0, 1, 250, 320);

auto target_1 = glm::vec2(target_radius_1 * cos(deg * DEG_TO_RAD), target_radius_1 * sin(deg * DEG_TO_RAD));

auto base_2 = glm::vec2(180 * cos(deg * DEG_TO_RAD), 180 * sin(deg * DEG_TO_RAD));

auto target_radius_2 = ofMap(ofNoise(glm::vec3(noise_location * 0.085, ofGetFrameNum() * 0.03)), 0, 1, 180, 250);

auto target_2 = glm::vec2(target_radius_2 * cos(deg * DEG_TO_RAD), target_radius_2 * sin(deg * DEG_TO_RAD));

this->draw_arrow(base_1, target_1, 12);

this->draw_arrow(base_2, target_2, 12);

auto target_radius = ofMap(ofNoise(glm::vec3(noise_location * 0.085, ofGetFrameNum() * 0.03)), 0, 1, 225, 275);

auto target = glm::vec2(target_radius * cos(deg * DEG_TO_RAD), target_radius * sin(deg * DEG_TO_RAD));

ofDrawCircle(target, 3);

}

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

void ofApp::draw_arrow(glm::vec2 location, glm::vec2 target, float size) {

auto angle = std::atan2(target.y - location.y, target.x - location.x);

auto distance = glm::distance(target, location);

ofPushMatrix();

ofTranslate(target);

ofFill();

ofBeginShape();

ofVertex(glm::vec2(size * cos(angle), size * sin(angle)));

ofVertex(glm::vec2(size * 0.35 * cos(angle + PI * 0.5), size * 0.35 * sin(angle + PI * 0.5)));

ofVertex(glm::vec2(size * 0.35 * cos(angle - PI * 0.5), size * 0.35 * sin(angle - PI * 0.5)));

ofEndShape();

ofBeginShape();

ofVertex(glm::vec2(size * 0.35 * cos(angle + PI * 0.5), size * 0.35 * sin(angle + PI * 0.5)) * 0.5);

ofVertex(glm::vec2(size * 0.35 * cos(angle + PI * 0.5), size * 0.35 * sin(angle + PI * 0.5)) * 0.5 - glm::vec2(distance * cos(angle), distance * sin(angle)));

ofVertex(glm::vec2(size * 0.35 * cos(angle - PI * 0.5), size * 0.35 * sin(angle - PI * 0.5)) * 0.5 - glm::vec2(distance * cos(angle), distance * sin(angle)));

ofVertex(glm::vec2(size * 0.35 * cos(angle - PI * 0.5), size * 0.35 * sin(angle - PI * 0.5)) * 0.5);

ofEndShape();

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231026

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2023年10月25日

Hexagon road.

[ Video ]

[ About ]
六角形の道。

[ 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<float> 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<float> 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(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	auto radius = 12;
	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] - 1.2 : 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++) {

		auto deg_start = ofGetFrameNum() * 3;
		auto radius = 280;

		for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

			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]) < 40) {

					this->life_list[i] = this->life_list[i] < 92 ? this->life_list[i] + 8 : 100;
				}
			}
		}
	}

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

		auto height = 1.f;
		if (this->life_list[i] > 10) {

			this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 12, 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, 12), 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(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(3);

ofEnableDepthTest();

auto radius = 12;

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] - 1.2 : 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++) {

auto deg_start = ofGetFrameNum() * 3;

auto radius = 280;

for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

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]) < 40) {

this->life_list[i] = this->life_list[i] < 92 ? this->life_list[i] + 8 : 100;

}

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

auto height = 1.f;

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

this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 12, 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, 12), 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/Insta20231025

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