2020年7月 – ページ 4 – プログラミング de 落描き

2020年7月22日2020年7月22日

Scribbling. Draw by openFrameworks

[ Video ]

[ About ]
落書き。

Scribbling.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	vector<glm::vec2> rect_location_list;
	vector<vector<float>> rect_param_list;
	vector<ofColor> color_list;
	float rect_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 mouseEntered(int x, int y) {};

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

vector<glm::vec2> rect_location_list;

vector<vector<float>> rect_param_list;

vector<ofColor> color_list;

float rect_size;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

	ofColor color;
	vector<int> hex_list = { 0x2a9d8f, 0xe9c46a, 0xf4a261, 0xe76f51 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->color_list.push_back(color);
	}

	this->rect_size = 10;
	for (float x = 60; x <= ofGetWidth() - 60; x += this->rect_size) {

		for (float y = 60; y <= ofGetHeight() - 60; y += this->rect_size) {

			this->rect_location_list.push_back(glm::vec2(x, y));
			
			vector<float> param_list;
			for (int i = 0; i < this->color_list.size(); i++) { param_list.push_back(0); }
			this->rect_param_list.push_back(param_list);
		}
	}
}

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

	ofSeedRandom(39);

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

		auto noise_location = glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, -60, ofGetWidth() + 60), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, -60, ofGetHeight() + 60));
		for (int k = 0; k < this->rect_location_list.size(); k++) {

			if (glm::distance(noise_location, this->rect_location_list[k]) < 60) {

				this->rect_param_list[k][i] = this->rect_param_list[k][i] < 100 ? this->rect_param_list[k][i] + 4 : 100;
			}
			else {

				this->rect_param_list[k][i] = this->rect_param_list[k][i] > 0 ? this->rect_param_list[k][i] - 0.5 : 0;
			}
		}
	}
}

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

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

		for (int k = 0; k < this->color_list.size(); k++) {

			if (this->rect_param_list[i][k] > 0) {

				ofSetColor(ofColor(this->color_list[k]));
				ofDrawRectangle(this->rect_location_list[i], 10, 10);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

ofColor color;

vector<int> hex_list = { 0x2a9d8f, 0xe9c46a, 0xf4a261, 0xe76f51 };

for (auto hex : hex_list) {

color.setHex(hex);

this->color_list.push_back(color);

}

this->rect_size = 10;

for (float x = 60; x <= ofGetWidth() - 60; x += this->rect_size) {

for (float y = 60; y <= ofGetHeight() - 60; y += this->rect_size) {

this->rect_location_list.push_back(glm::vec2(x, y));

vector<float> param_list;

for (int i = 0; i < this->color_list.size(); i++) { param_list.push_back(0); }

this->rect_param_list.push_back(param_list);

}

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

void ofApp::update() {

ofSeedRandom(39);

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

auto noise_location = glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, -60, ofGetWidth() + 60), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.015), 0, 1, -60, ofGetHeight() + 60));

for (int k = 0; k < this->rect_location_list.size(); k++) {

if (glm::distance(noise_location, this->rect_location_list[k]) < 60) {

this->rect_param_list[k][i] = this->rect_param_list[k][i] < 100 ? this->rect_param_list[k][i] + 4 : 100;

}

else {

this->rect_param_list[k][i] = this->rect_param_list[k][i] > 0 ? this->rect_param_list[k][i] - 0.5 : 0;

}

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

void ofApp::draw() {

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

for (int k = 0; k < this->color_list.size(); k++) {

if (this->rect_param_list[i][k] > 0) {

ofSetColor(ofColor(this->color_list[k]));

ofDrawRectangle(this->rect_location_list[i], 10, 10);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200722

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2020年7月21日2020年7月21日

Flaking sphere. Draw by openFrameworks

[ Video ]

[ About ]
剥がれ落ちる球体。

flaking sphere.

[ 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<ofMeshFace> triangle_list;
	ofMesh mesh;

	vector<vector<glm::vec3>> fragment_list;
	vector<float> fragment_life_list;
	vector<glm::vec3> fragment_velocity_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) {};

ofEasyCam cam;

vector<ofMeshFace> triangle_list;

ofMesh mesh;

vector<vector<glm::vec3>> fragment_list;

vector<float> fragment_life_list;

vector<glm::vec3> fragment_velocity_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(125, 2);
	this->triangle_list = ico_sphere.getMesh().getUniqueFaces();
}

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

	this->mesh.clear();
	
	ofSeedRandom(39);
	auto base_location_noise = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	auto base_location = glm::vec3(
		ofMap(ofNoise(base_location_noise.x, ofGetFrameNum() * 0.005), 0, 1, -300, 300),
		ofMap(ofNoise(base_location_noise.y, ofGetFrameNum() * 0.005), 0, 1, -300, 300),
		ofMap(ofNoise(base_location_noise.z, ofGetFrameNum() * 0.005), 0, 1, -50, 50)
	);
	auto prev_base_location = glm::vec3(
		ofMap(ofNoise(base_location_noise.x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),
		ofMap(ofNoise(base_location_noise.y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),
		ofMap(ofNoise(base_location_noise.z, (ofGetFrameNum() + 1) * 0.005), 0, 1, -50, 50)
	);
	auto velocity = base_location - prev_base_location;
	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

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

		int index = this->mesh.getNumVertices();
		auto avg = glm::vec3(triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		auto param = (int)(ofRandom(1000) + ofGetFrameNum()) % 200;

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

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

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(0, 0, 1));
			location = glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x;

			vertices.push_back(location + base_location);
		}
		
		if(param == 0){

			this->fragment_list.push_back(vertices);
			this->fragment_life_list.push_back(255);
			this->fragment_velocity_list.push_back(velocity * 1.5 + avg * 0.005);
		}
		else if (param > 50) {

			this->mesh.addVertices(vertices);
			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);
		}
	}

	for (int i = this->fragment_list.size() - 1; i >= 0; i--) {

		for (auto& vertex : this->fragment_list[i]) {

			vertex += this->fragment_velocity_list[i];
		}
		this->fragment_life_list[i] -= 5;

		if (this->fragment_life_list[i] < 0) {

			this->fragment_list.erase(this->fragment_list.begin() + i);
			this->fragment_life_list.erase(this->fragment_life_list.begin() + i);
			this->fragment_velocity_list.erase(this->fragment_velocity_list.begin() + i);
		}
	}
}

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

	this->cam.begin();

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

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

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

		ofSetColor(39, this->fragment_life_list[i]);
		ofFill();
		ofBeginShape();
		ofVertices(this->fragment_list[i]);
		ofEndShape(true);

		ofSetColor(239, this->fragment_life_list[i]);
		ofNoFill();
		ofBeginShape();
		ofVertices(this->fragment_list[i]);
		ofEndShape(true);
	}

	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);

ofSetLineWidth(3);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(125, 2);

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

}

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

void ofApp::update() {

this->mesh.clear();

ofSeedRandom(39);

auto base_location_noise = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

auto base_location = glm::vec3(

ofMap(ofNoise(base_location_noise.x, ofGetFrameNum() * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(base_location_noise.y, ofGetFrameNum() * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(base_location_noise.z, ofGetFrameNum() * 0.005), 0, 1, -50, 50)

);

auto prev_base_location = glm::vec3(

ofMap(ofNoise(base_location_noise.x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(base_location_noise.y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -300, 300),

ofMap(ofNoise(base_location_noise.z, (ofGetFrameNum() + 1) * 0.005), 0, 1, -50, 50)

);

auto velocity = base_location - prev_base_location;

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

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

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

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

auto param = (int)(ofRandom(1000) + ofGetFrameNum()) % 200;

vector<glm::vec3> vertices;

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

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

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.0035), 0, 1, -PI, PI), glm::vec3(0, 0, 1));

location = glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x;

vertices.push_back(location + base_location);

}

if(param == 0){

this->fragment_list.push_back(vertices);

this->fragment_life_list.push_back(255);

this->fragment_velocity_list.push_back(velocity * 1.5 + avg * 0.005);

}

else if (param > 50) {

this->mesh.addVertices(vertices);

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

}

for (int i = this->fragment_list.size() - 1; i >= 0; i--) {

for (auto& vertex : this->fragment_list[i]) {

vertex += this->fragment_velocity_list[i];

}

this->fragment_life_list[i] -= 5;

if (this->fragment_life_list[i] < 0) {

this->fragment_list.erase(this->fragment_list.begin() + i);

this->fragment_life_list.erase(this->fragment_life_list.begin() + i);

this->fragment_velocity_list.erase(this->fragment_velocity_list.begin() + i);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->mesh.drawFaces();

ofSetColor(239);

this->mesh.drawWireframe();

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

ofSetColor(39, this->fragment_life_list[i]);

ofFill();

ofBeginShape();

ofVertices(this->fragment_list[i]);

ofEndShape(true);

ofSetColor(239, this->fragment_life_list[i]);

ofNoFill();

ofBeginShape();

ofVertices(this->fragment_list[i]);

ofEndShape(true);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200721

[ほしいものリスト]
Amazon

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2020年7月20日

Round and round. Draw by openFrameworks

[ Video ]

[ About ]
くるくる円形。

Round and round.

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

	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 setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

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

	for (int x = -800; x <= 800; x += 800) {

		for (int y = -800; y <= 800; y += 800) {

			this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), 0, 180, 20);
			for (auto radius = 120; radius < 360; radius += 60) {

				this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), radius, 60, 20);
			}
		}
	}
}

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

	this->cam.begin();

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

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

	this->cam.end();
}

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

	auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
	auto noise_value = glm::vec2(ofNoise(noise_seed.x, ofGetFrameNum() * 0.002), ofNoise(noise_seed.y, ofGetFrameNum() * 0.002));

	auto angle_x = ofMap(noise_value.x, 0, 1, -PI * 2, PI * 2);
	auto angle_y = ofMap(noise_value.y, 0, 1, -PI * 2, PI * 2);

	auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
	auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

	for (int deg = 0; deg < 360; deg += 1) {

		auto face_index = face_target.getNumVertices();

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5)  * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5)  * sin((deg + 1) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5)  * sin((deg + 1) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5)  * sin(deg * DEG_TO_RAD), height * 0.5));

		vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

		for (auto& vertex : vertices) {

			vertex = location + glm::vec4(vertex, 0) * rotation_y * rotation_x;
		}

		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 + 0); 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 + 6);
		face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

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

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

		auto frame_index = frame_target.getNumVertices();

		frame_target.addVertices(vertices);

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

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

for (int x = -800; x <= 800; x += 800) {

for (int y = -800; y <= 800; y += 800) {

this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), 0, 180, 20);

for (auto radius = 120; radius < 360; radius += 60) {

this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), radius, 60, 20);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

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

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

auto noise_value = glm::vec2(ofNoise(noise_seed.x, ofGetFrameNum() * 0.002), ofNoise(noise_seed.y, ofGetFrameNum() * 0.002));

auto angle_x = ofMap(noise_value.x, 0, 1, -PI * 2, PI * 2);

auto angle_y = ofMap(noise_value.y, 0, 1, -PI * 2, PI * 2);

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

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

for (int deg = 0; deg < 360; deg += 1) {

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

for (auto& vertex : vertices) {

vertex = location + glm::vec4(vertex, 0) * rotation_y * rotation_x;

}

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 + 0); 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 + 6);

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

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2);

auto frame_index = frame_target.getNumVertices();

frame_target.addVertices(vertices);

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

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

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

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200720/

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