openFrameworks – ページ 427 – プログラミング de 落描き

2021年8月24日2021年8月24日

Connect the circles. Draw by openFrameworks

[ Video ]

[ About ]
円をつなぐ線を書く。
凄く昔の落書きのリメイク。

Draw a line connecting the circles.
A remake of a very old doodle.

[ 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) {}
};

#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) {}

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
}

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

}

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

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

	int radius = 80;
	int location_radius = 230;
	int deg_span = 60;

	for (int deg = 0; deg < 360; deg += 10) {

		int tmp_deg = deg + ofGetFrameNum() * 0.5;
		vector<glm::vec2> vertices;
		for (int location_deg = 0; location_deg < 360; location_deg += deg_span) {

			auto base_location = glm::vec2(location_radius * cos(location_deg * DEG_TO_RAD), location_radius * sin(location_deg * DEG_TO_RAD));
			auto location = glm::vec2(radius * cos(tmp_deg * DEG_TO_RAD), radius * sin(tmp_deg * DEG_TO_RAD));

			vertices.push_back(base_location + location);
			tmp_deg += 120;
		}

		ofColor color = ofColor();
		color.setHsb(ofMap(deg, 0, 360, 0, 255), 255, 230);
		ofSetColor(color);

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

		ofFill();
		for (auto vertex : vertices) {

			ofDrawCircle(vertex, 3.5);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

int radius = 80;

int location_radius = 230;

int deg_span = 60;

for (int deg = 0; deg < 360; deg += 10) {

int tmp_deg = deg + ofGetFrameNum() * 0.5;

vector<glm::vec2> vertices;

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

auto base_location = glm::vec2(location_radius * cos(location_deg * DEG_TO_RAD), location_radius * sin(location_deg * DEG_TO_RAD));

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

vertices.push_back(base_location + location);

tmp_deg += 120;

}

ofColor color = ofColor();

color.setHsb(ofMap(deg, 0, 360, 0, 255), 255, 230);

ofSetColor(color);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofFill();

for (auto vertex : vertices) {

ofDrawCircle(vertex, 3.5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210824

2021年8月23日2021年8月23日

Lack font. 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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	bool foundLocation(glm::vec3 value);

	ofEasyCam cam;
	ofMesh face, frame;

	ofTrueTypeFont font;
	vector<glm::vec3> location_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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

bool foundLocation(glm::vec3 value);

ofEasyCam cam;

ofMesh face, frame;

ofTrueTypeFont font;

vector<glm::vec3> location_list;

};

#include "ofApp.h"

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

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

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

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 200, true, true, true);

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	ofClear(0);
	ofSetColor(0);

	string word = "LACK";
	this->font.drawString(word, this->font.stringWidth(word) * -0.56, this->font.stringHeight(word) - 250);

	fbo.end();

	int span = 5;
	ofPixels pixels;
	fbo.readToPixels(pixels);
	for (int x = 0; x < fbo.getWidth(); x += span) {

		for (int y = 0; y < fbo.getHeight(); y += span) {

			ofColor color = pixels.getColor(x, y);
			if (color != ofColor(0, 0)) {

					this->location_list.push_back(glm::vec3(x - fbo.getWidth() * 0.5, y - fbo.getHeight() * 0.5, 0));
			}
		}
	}
}

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

	ofSeedRandom(39);

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

	int span = 5;
	float threshold = 0.4;
	float frame_param = ofGetFrameNum() * 0.015;
	float coordinate_param = 0.0065;

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

		for (int z = -100; z <= 100; z += 50) {

			auto x = this->location_list[i].x;
			auto y = this->location_list[i].y;

			auto noise_location = glm::vec3(x, y, z);
			auto noise_value = ofNoise(glm::vec3(noise_location.x * coordinate_param, noise_location.y * coordinate_param, noise_location.z * coordinate_param + frame_param));
			if (noise_value < threshold) { continue; }

			auto loc_1 = glm::vec3(x - span, y, z);
			auto noise_1 = this->foundLocation(loc_1) ? ofNoise(glm::vec3(loc_1.x * coordinate_param, loc_1.y * coordinate_param, loc_1.z * coordinate_param + frame_param)) : 0;
			auto loc_2 = glm::vec3(x, y + span, z);
			auto noise_2 = this->foundLocation(loc_2) ? ofNoise(glm::vec3(loc_2.x * coordinate_param, loc_2.y * coordinate_param, loc_2.z * coordinate_param + frame_param)) : 0;
			auto loc_3 = glm::vec3(x + span, y, z);
			auto noise_3 = this->foundLocation(loc_3) ? ofNoise(glm::vec3(loc_3.x * coordinate_param, loc_3.y * coordinate_param, loc_3.z * coordinate_param + frame_param)) : 0;
			auto loc_4 = glm::vec3(x, y - span, z);
			auto noise_4 = this->foundLocation(loc_4) ? ofNoise(glm::vec3(loc_4.x * coordinate_param, loc_4.y * coordinate_param, loc_4.z * coordinate_param + frame_param)) : 0;

			auto index = this->face.getNumVertices();
			vector<glm::vec3> vertices;

			vertices.push_back(glm::vec3(x - span * 0.5, y - span * 0.5, z));
			vertices.push_back(glm::vec3(x + span * 0.5, y - span * 0.5, z));
			vertices.push_back(glm::vec3(x + span * 0.5, y + span * 0.5, z));
			vertices.push_back(glm::vec3(x - span * 0.5, y + span * 0.5, z));

			this->face.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);

			if (noise_1 < threshold) {

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

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

			if (noise_2 < threshold) {

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

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

			if (noise_3 < threshold) {

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

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

			if (noise_4 < threshold) {

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

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

			}
		}
	}
}

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

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

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

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

	this->cam.end();
}

//--------------------------------------------------------------
bool ofApp::foundLocation(glm::vec3 value) {

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

		if (this->location_list[i] == glm::vec3(value.x, value.y, 0)) {

			return true;
		}
	}

	return false;
}

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

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 200, true, true, true);

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

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

ofClear(0);

ofSetColor(0);

string word = "LACK";

this->font.drawString(word, this->font.stringWidth(word) * -0.56, this->font.stringHeight(word) - 250);

fbo.end();

int span = 5;

ofPixels pixels;

fbo.readToPixels(pixels);

for (int x = 0; x < fbo.getWidth(); x += span) {

for (int y = 0; y < fbo.getHeight(); y += span) {

ofColor color = pixels.getColor(x, y);

if (color != ofColor(0, 0)) {

this->location_list.push_back(glm::vec3(x - fbo.getWidth() * 0.5, y - fbo.getHeight() * 0.5, 0));

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int span = 5;

float threshold = 0.4;

float frame_param = ofGetFrameNum() * 0.015;

float coordinate_param = 0.0065;

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

for (int z = -100; z <= 100; z += 50) {

auto x = this->location_list[i].x;

auto y = this->location_list[i].y;

auto noise_location = glm::vec3(x, y, z);

auto noise_value = ofNoise(glm::vec3(noise_location.x * coordinate_param, noise_location.y * coordinate_param, noise_location.z * coordinate_param + frame_param));

if (noise_value < threshold) { continue; }

auto loc_1 = glm::vec3(x - span, y, z);

auto noise_1 = this->foundLocation(loc_1) ? ofNoise(glm::vec3(loc_1.x * coordinate_param, loc_1.y * coordinate_param, loc_1.z * coordinate_param + frame_param)) : 0;

auto loc_2 = glm::vec3(x, y + span, z);

auto noise_2 = this->foundLocation(loc_2) ? ofNoise(glm::vec3(loc_2.x * coordinate_param, loc_2.y * coordinate_param, loc_2.z * coordinate_param + frame_param)) : 0;

auto loc_3 = glm::vec3(x + span, y, z);

auto noise_3 = this->foundLocation(loc_3) ? ofNoise(glm::vec3(loc_3.x * coordinate_param, loc_3.y * coordinate_param, loc_3.z * coordinate_param + frame_param)) : 0;

auto loc_4 = glm::vec3(x, y - span, z);

auto noise_4 = this->foundLocation(loc_4) ? ofNoise(glm::vec3(loc_4.x * coordinate_param, loc_4.y * coordinate_param, loc_4.z * coordinate_param + frame_param)) : 0;

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(x - span * 0.5, y - span * 0.5, z));

vertices.push_back(glm::vec3(x + span * 0.5, y - span * 0.5, z));

vertices.push_back(glm::vec3(x + span * 0.5, y + span * 0.5, z));

vertices.push_back(glm::vec3(x - span * 0.5, y + span * 0.5, z));

this->face.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);

if (noise_1 < threshold) {

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1);

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

}

if (noise_2 < threshold) {

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1);

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

}

if (noise_3 < threshold) {

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1);

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

}

if (noise_4 < threshold) {

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1);

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofSetColor(239);

this->frame.draw();

ofSetColor(39);

this->face.draw();

this->cam.end();

}

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

bool ofApp::foundLocation(glm::vec3 value) {

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

if (this->location_list[i] == glm::vec3(value.x, value.y, 0)) {

return true;

}

return false;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210823

2021年8月22日

Looking into the box. Draw by openFrameworks

[ Video ]

[ About ]
板の座標を回転させてつなぎ合わせる。

Rotate the coordinates of the boards and stitch them together.

[ 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, sphere_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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofMesh face, frame, sphere_list;

};

#include "ofApp.h"

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

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

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

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

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

	ofSeedRandom(39);

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

	int span = 30;
	float threshold = 0.48;
	float frame_param = ofGetFrameNum() * 0.003;
	float coordinate_param = 0.0065;
	int z = 300 + span * 0.5;

	float angle;
	glm::highp_mat4 rotation;
	for (int i = 0; i <= 6; i++) {

		for (int x = -300; x <= 300; x += span) {

			for (int y = -300; y <= 300; y += span) {

				if (i <= 4) {

					angle = PI * 0.5 * i;
					rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));
				}

				if (i == 5) {

					angle = PI * 0.5;
					rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));
				}

				if (i == 6) {

					angle = PI * 0.5 * 3;
					rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));
				}


				glm::vec3 noise_location = glm::vec4(x, y, z , 0) * rotation;
				auto noise_value = ofNoise(glm::vec4(noise_location * coordinate_param, frame_param));
				if (noise_value < threshold) { continue; }

				glm::vec3 loc_1 = glm::vec4(x - span, y, z, 0) * rotation;
				auto noise_1 = ofNoise(glm::vec4(loc_1 * coordinate_param, frame_param));
				glm::vec3 loc_2 = glm::vec4(x, y + span , z, 0) * rotation;
				auto noise_2 = ofNoise(glm::vec4(loc_2 * coordinate_param, frame_param));
				glm::vec3 loc_3 = glm::vec4(x + span, y, z, 0) * rotation;
				auto noise_3 = ofNoise(glm::vec4(loc_3 * coordinate_param, frame_param));
				glm::vec3 loc4 = glm::vec4(x, y - span, z, 0) * rotation;
				auto noise_4 = ofNoise(glm::vec4(loc4 * coordinate_param, frame_param));

				auto index = this->face.getNumVertices();
				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec4(x - span * 0.5, y - span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x + span * 0.5, y - span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x + span * 0.5, y + span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x - span * 0.5, y + span * 0.5, z, 0) * rotation);

				this->face.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);

				if (noise_1 < threshold || x == -300) {

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

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

				if (noise_2 < threshold || y == 300) {

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

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

				if (noise_3 < threshold || x == 300) {

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

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

				if (noise_4 < threshold || y == -300) {

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

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

				}
			}
		}
	}

	this->sphere_list.clear();

	vector<ofColor> base_color_list;
	ofColor color;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}

	int color_index = 0;
	for (int i = 0; i < 150; i++) {

		auto x = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -250, 250);
		auto y = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -250, 250);
		auto z = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -250, 250);

		this->sphere_list.addVertex(glm::vec3(x, y, z));

		this->sphere_list.addColor(base_color_list[color_index]);
		color_index = (color_index + 1) % base_color_list.size();
	}

	for (int i = 0; i < this->sphere_list.getNumVertices(); i++) {

		for (int k = i + 1; k < this->sphere_list.getNumVertices(); k++) {

			if (glm::distance(this->sphere_list.getVertex(i), this->sphere_list.getVertex(k)) < 50) {

				this->sphere_list.addIndex(i);
				this->sphere_list.addIndex(k);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);
	ofRotateX(ofGetFrameNum() * 0.75);

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

	ofSetColor(239);
	this->face.draw();

	this->sphere_list.drawWireframe();
	for (int i = 0; i < this->sphere_list.getNumVertices(); i++) {

		ofSetColor(this->sphere_list.getColor(i));
		ofDrawSphere(this->sphere_list.getVertex(i), 8);
	}

	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(1.5);

ofEnableDepthTest();

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

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int span = 30;

float threshold = 0.48;

float frame_param = ofGetFrameNum() * 0.003;

float coordinate_param = 0.0065;

int z = 300 + span * 0.5;

float angle;

glm::highp_mat4 rotation;

for (int i = 0; i <= 6; i++) {

for (int x = -300; x <= 300; x += span) {

for (int y = -300; y <= 300; y += span) {

if (i <= 4) {

angle = PI * 0.5 * i;

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

}

if (i == 5) {

angle = PI * 0.5;

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

}

if (i == 6) {

angle = PI * 0.5 * 3;

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

}

glm::vec3 noise_location = glm::vec4(x, y, z , 0) * rotation;

auto noise_value = ofNoise(glm::vec4(noise_location * coordinate_param, frame_param));

if (noise_value < threshold) { continue; }

glm::vec3 loc_1 = glm::vec4(x - span, y, z, 0) * rotation;

auto noise_1 = ofNoise(glm::vec4(loc_1 * coordinate_param, frame_param));

glm::vec3 loc_2 = glm::vec4(x, y + span , z, 0) * rotation;

auto noise_2 = ofNoise(glm::vec4(loc_2 * coordinate_param, frame_param));

glm::vec3 loc_3 = glm::vec4(x + span, y, z, 0) * rotation;

auto noise_3 = ofNoise(glm::vec4(loc_3 * coordinate_param, frame_param));

glm::vec3 loc4 = glm::vec4(x, y - span, z, 0) * rotation;

auto noise_4 = ofNoise(glm::vec4(loc4 * coordinate_param, frame_param));

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec4(x - span * 0.5, y - span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x + span * 0.5, y - span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x + span * 0.5, y + span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x - span * 0.5, y + span * 0.5, z, 0) * rotation);

this->face.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);

if (noise_1 < threshold || x == -300) {

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1);

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

}

if (noise_2 < threshold || y == 300) {

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1);

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

}

if (noise_3 < threshold || x == 300) {

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1);

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

}

if (noise_4 < threshold || y == -300) {

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1);

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

}

this->sphere_list.clear();

vector<ofColor> base_color_list;

ofColor color;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

int color_index = 0;

for (int i = 0; i < 150; i++) {

auto x = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -250, 250);

auto y = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -250, 250);

auto z = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -250, 250);

this->sphere_list.addVertex(glm::vec3(x, y, z));

this->sphere_list.addColor(base_color_list[color_index]);

color_index = (color_index + 1) % base_color_list.size();

}

for (int i = 0; i < this->sphere_list.getNumVertices(); i++) {

for (int k = i + 1; k < this->sphere_list.getNumVertices(); k++) {

if (glm::distance(this->sphere_list.getVertex(i), this->sphere_list.getVertex(k)) < 50) {

this->sphere_list.addIndex(i);

this->sphere_list.addIndex(k);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofRotateX(ofGetFrameNum() * 0.75);

ofSetColor(39);

this->frame.draw();

ofSetColor(239);

this->face.draw();

this->sphere_list.drawWireframe();

for (int i = 0; i < this->sphere_list.getNumVertices(); i++) {

ofSetColor(this->sphere_list.getColor(i));

ofDrawSphere(this->sphere_list.getVertex(i), 8);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210822

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