openFrameworks – ページ 439 – プログラミング de 落描き

2021年4月14日2021年4月14日

Change ring size. Draw by openFrameworks

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Change ring size.

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#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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;
	ofMesh face, frame;

	float r;
};

#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) {};

glm::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

ofMesh face, frame;

float r;

};

#include "ofApp.h"	

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

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

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

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

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

	ofSeedRandom(39);

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

	float R = 300;
	this->r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, 10, 130);
	int v_span = 8;
	int u_span = 10;

	for (int v = 0; v < 360; v += v_span) {

		for (auto u = 0; u < 360; u += u_span) {

			auto noise_value = ofNoise(glm::vec4(this->make_point(R, 50, u + u_span * 0.5, v) * 0.005, ofGetFrameNum() * 0.01));

			if (noise_value > 0.6) {

				vector<glm::vec3> vertices;
				vertices.push_back(this->make_point(R, this->r, u, v - v_span * 0.5));
				vertices.push_back(this->make_point(R, this->r, u + u_span, v - v_span * 0.5));
				vertices.push_back(this->make_point(R, this->r, u + u_span, v + v_span * 0.5));
				vertices.push_back(this->make_point(R, this->r, u, v + v_span * 0.5));

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

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

				this->frame.addVertices(vertices);

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

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

	this->cam.begin();

	int number = 300;
	vector<glm::vec3> location_list(number);
	for (int i = 0; i < number; i++) {

		auto R = 300;
		auto tmp_r = ofRandom(10, this->r * 0.8);
		auto u = ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.0) * (ofRandom(1) < 0.5 ? 1 : -1);
		auto v = ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.0) * (ofRandom(1) < 0.5 ? 1 : -1);

		location_list[i] = this->make_point(R, tmp_r, u, v);
	}

	ofFill();
	ofSetColor(39);
	for (auto& location : location_list) {

		ofDrawSphere(location, 3);
		for (auto& other : location_list) {

			if (location == other) { continue; }

			auto distance = glm::distance(location, other);
			if (distance < 40) {

				ofDrawLine(location, other);
			}
		}
	}

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

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

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(1.5);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

float R = 300;

this->r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, 10, 130);

int v_span = 8;

int u_span = 10;

for (int v = 0; v < 360; v += v_span) {

for (auto u = 0; u < 360; u += u_span) {

auto noise_value = ofNoise(glm::vec4(this->make_point(R, 50, u + u_span * 0.5, v) * 0.005, ofGetFrameNum() * 0.01));

if (noise_value > 0.6) {

vector<glm::vec3> vertices;

vertices.push_back(this->make_point(R, this->r, u, v - v_span * 0.5));

vertices.push_back(this->make_point(R, this->r, u + u_span, v - v_span * 0.5));

vertices.push_back(this->make_point(R, this->r, u + u_span, v + v_span * 0.5));

vertices.push_back(this->make_point(R, this->r, u, v + v_span * 0.5));

int index = face.getNumVertices();

this->face.addVertices(vertices);

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

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

this->frame.addVertices(vertices);

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

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

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

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

}

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

void ofApp::draw() {

this->cam.begin();

int number = 300;

vector<glm::vec3> location_list(number);

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

auto R = 300;

auto tmp_r = ofRandom(10, this->r * 0.8);

auto u = ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.0) * (ofRandom(1) < 0.5 ? 1 : -1);

auto v = ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.0) * (ofRandom(1) < 0.5 ? 1 : -1);

location_list[i] = this->make_point(R, tmp_r, u, v);

}

ofFill();

ofSetColor(39);

for (auto& location : location_list) {

ofDrawSphere(location, 3);

for (auto& other : location_list) {

if (location == other) { continue; }

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

if (distance < 40) {

ofDrawLine(location, other);

}

ofSetColor(239);

this->face.draw();

ofSetColor(39);

this->frame.drawWireframe();

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210414

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2021年4月13日2021年4月13日

noise boundary. Draw by openframeworks

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[ About ]
noise boundary.

[ 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, float angle, float size);

	vector<glm::vec2> 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) {};

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

vector<glm::vec2> location_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);

	for (int x = -280; x <= 280; x += 35) {

		for (int y = -280; y <= 280; y += 35) {

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

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	for (auto& location : this->location_list) {

		int angle = ofMap(ofNoise(glm::vec3(location * 0.0008, ofGetFrameNum() * 0.002)), 0, 1, 0, 720);
		int param = angle % 90;
		angle = angle - param;

		ofSetColor(39);
		if (param < 5) {

			angle += ofMap(param, 5, 0, 0, -90);
			ofSetColor(239, 0, 0);
		}
		else if (param > 85) {

			angle += ofMap(param, 85, 0, 0, 90);
			ofSetColor(239, 0, 0);
		}


		this->draw_arrow(location, angle, 20);
	}
}

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

	angle *= DEG_TO_RAD;

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

	ofBeginShape();
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);
	ofEndShape(true);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

for (int x = -280; x <= 280; x += 35) {

for (int y = -280; y <= 280; y += 35) {

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

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (auto& location : this->location_list) {

int angle = ofMap(ofNoise(glm::vec3(location * 0.0008, ofGetFrameNum() * 0.002)), 0, 1, 0, 720);

int param = angle % 90;

angle = angle - param;

ofSetColor(39);

if (param < 5) {

angle += ofMap(param, 5, 0, 0, -90);

ofSetColor(239, 0, 0);

}

else if (param > 85) {

angle += ofMap(param, 85, 0, 0, 90);

ofSetColor(239, 0, 0);

}

this->draw_arrow(location, angle, 20);

}

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

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

angle *= DEG_TO_RAD;

ofBeginShape();

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

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

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

ofEndShape(true);

ofBeginShape();

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210413

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2021年4月12日2021年4月12日

Visible and unvisible. Draw by openFrameworks

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Visible and unvisible.

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

	ofEasyCam cam;
	ofMesh face, frame;

	vector<glm::vec3> location_list;
	vector<ofColor> color_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) {};

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

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

ofEasyCam cam;

ofMesh face, frame;

vector<glm::vec3> location_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

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

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

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

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

	int span = 40;
	for (int x = -220; x <= 220; x += span) {

		for (int y = -220; y <= 220; y += span) {

			for (int z = -220; z <= 220; z += 440) {

				this->location_list.push_back(glm::vec3(x, y, z));
				this->color_list.push_back(base_color_list[(int)ofRandom(base_color_list.size())]);
			}
		}
	}

	for (int x = -220; x <= 220; x += 440) {

		for (int y = -220; y <= 220; y += span) {

			for (int z = -220 + span; z <= 220 - span; z += span) {

				this->location_list.push_back(glm::vec3(x, y, z));
				this->color_list.push_back(base_color_list[(int)ofRandom(base_color_list.size())]);
			}
		}
	}

	for (int x = -220 + span; x <= 220 - span; x += span) {

		for (int y = -220; y <= 220; y += 440) {

			for (int z = -220 + span; z <= 220 - span; z += span) {

				this->location_list.push_back(glm::vec3(x, y, z));
				this->color_list.push_back(base_color_list[(int)ofRandom(base_color_list.size())]);
			}
		}
	}
}

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

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

	for (int base_x = -650; base_x <= 650; base_x += 650) {

		for (int base_y = -650; base_y <= 650; base_y += 650) {

			auto threshold = ofMap(ofNoise(base_x, base_y, ofGetFrameNum() * 0.01), 0, 1, -0.5, 1);

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

				auto noise_value = ofNoise(glm::vec4((glm::vec3(base_x, base_y, 0) + glm::vec3(this->location_list[i])) * 0.002, ofGetFrameNum() * 0.01));
				if (noise_value < threshold) { size = 0; }
				else if (noise_value > threshold + 0.05) { size = 40; }
				else { size = ofMap(noise_value, threshold, threshold + 0.05, 0, 40); }

				this->setBoxToMesh(this->face, this->frame, glm::vec3(base_x, base_y, 0) + this->location_list[i], size, this->color_list[i]);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateY(330);

	this->face.draw();

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

	for (int base_x = -650; base_x <= 650; base_x += 650) {

		for (int base_y = -650; base_y <= 650; base_y += 650) {

			ofNoFill();
			ofSetColor(39);
			ofDrawBox(glm::vec3(base_x, base_y, 0), 440 + 40);
		}
	}

	this->cam.end();
}

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

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

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

	int face_index = face_target.getNumVertices();
	int frame_index = frame_target.getNumVertices();

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

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

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

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

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

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

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

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

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

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

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

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

		face_target.addColor(face_color);
	}
}

//--------------------------------------------------------------
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(2);

ofEnableDepthTest();

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

ofColor color;

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

vector<ofColor> base_color_list;

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

int span = 40;

for (int x = -220; x <= 220; x += span) {

for (int y = -220; y <= 220; y += span) {

for (int z = -220; z <= 220; z += 440) {

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

this->color_list.push_back(base_color_list[(int)ofRandom(base_color_list.size())]);

}

for (int x = -220; x <= 220; x += 440) {

for (int y = -220; y <= 220; y += span) {

for (int z = -220 + span; z <= 220 - span; z += span) {

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

this->color_list.push_back(base_color_list[(int)ofRandom(base_color_list.size())]);

}

for (int x = -220 + span; x <= 220 - span; x += span) {

for (int y = -220; y <= 220; y += 440) {

for (int z = -220 + span; z <= 220 - span; z += span) {

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

this->color_list.push_back(base_color_list[(int)ofRandom(base_color_list.size())]);

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

for (int base_x = -650; base_x <= 650; base_x += 650) {

for (int base_y = -650; base_y <= 650; base_y += 650) {

auto threshold = ofMap(ofNoise(base_x, base_y, ofGetFrameNum() * 0.01), 0, 1, -0.5, 1);

float size;

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

auto noise_value = ofNoise(glm::vec4((glm::vec3(base_x, base_y, 0) + glm::vec3(this->location_list[i])) * 0.002, ofGetFrameNum() * 0.01));

if (noise_value < threshold) { size = 0; }

else if (noise_value > threshold + 0.05) { size = 40; }

else { size = ofMap(noise_value, threshold, threshold + 0.05, 0, 40); }

this->setBoxToMesh(this->face, this->frame, glm::vec3(base_x, base_y, 0) + this->location_list[i], size, this->color_list[i]);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(330);

this->face.draw();

ofSetColor(39);

this->frame.drawWireframe();

for (int base_x = -650; base_x <= 650; base_x += 650) {

for (int base_y = -650; base_y <= 650; base_y += 650) {

ofNoFill();

ofSetColor(39);

ofDrawBox(glm::vec3(base_x, base_y, 0), 440 + 40);

}

this->cam.end();

}

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

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

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

}

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

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

int face_index = face_target.getNumVertices();

int frame_index = frame_target.getNumVertices();

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

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

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

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

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

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

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

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

face_target.addIndex(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 + 1);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

face_target.addColor(face_color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210412

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