プログラミング de 落描き – ページ 460 – クリエイティブ・コーディングによる生成物とソース

2020年8月9日

Distorted ripples. Draw by openFrameworks

[ Video ]

[ About ]
歪んださざ波。

Distorted ripples.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

/* Ripple */

class Ripple
{
public:

	Ripple();
	Ripple(glm::vec3 location);
	void update();
	void draw();
	bool isDead();
private:

	glm::vec3 location;
	float radius;
	float life;
	ofColor color;
};

/* ofApp */

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) {};

	vector<unique_ptr<Ripple>> ripple_list;

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

/* Ripple */

class Ripple

{

public:

Ripple();

Ripple(glm::vec3 location);

void update();

void draw();

bool isDead();

private:

glm::vec3 location;

float radius;

float life;

ofColor color;

};

/* ofApp */

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) {};

vector<unique_ptr<Ripple>> ripple_list;

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

};

#include "ofApp.h"

/* Ripple */

//--------------------------------------------------------------
Ripple::Ripple() : Ripple(glm::vec3()) { }

//--------------------------------------------------------------
Ripple::Ripple(glm::vec3 location) {

	this->location = location;
	this->radius = 1;
	this->life = 255;
	this->color.setHsb(ofRandom(255), 255, 230);
}

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

	if (this->location.z > 0) {

		this->location.z = this->location.z > 20 ? this->location.z - 20 : 0;
		return;
	}

	this->radius += 2;
	this->life -= 3;
}

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

	ofPushMatrix();
	ofTranslate(this->location);

	ofSetColor(this->color);
	if (this->location.z > 0) {

		ofDrawLine(glm::vec3(), glm::vec3(0, 0, 30));
	}
	else {

		if (this->life < 200) {

			ofSetColor(this->color, ofMap(this->life, 0, 200, 0, 255));
		}

		int deg_span = 60;
		for (int deg = 0; deg < 360; deg += deg_span) {

			int next_deg = deg + deg_span;
			float noise_param = ofMap(ofNoise(glm::vec3(
				this->location.x + cos(deg * DEG_TO_RAD),
				this->location.y + sin(deg * DEG_TO_RAD),
				ofGetFrameNum() * 0.008)),
				0, 1, 0, 2);
			float next_noise_param = ofMap(ofNoise(glm::vec3(
				this->location.x + cos((deg + deg_span) * DEG_TO_RAD),
				this->location.y + sin((deg + deg_span) * DEG_TO_RAD),
				ofGetFrameNum() * 0.008)),
				0, 1, 2, 0);

			vector<glm::vec2> vertices;
			vertices.push_back(glm::vec2(
				radius * cos(deg * DEG_TO_RAD),
				radius * sin(deg * DEG_TO_RAD)));
			vertices.push_back(glm::vec2(
				(radius * noise_param) * cos((deg + deg_span * 0.25) * DEG_TO_RAD),
				(radius * noise_param) * sin((deg + deg_span * 0.25) * DEG_TO_RAD)));
			vertices.push_back(glm::vec2(
				(radius * next_noise_param) * cos((next_deg - deg_span * 0.25) * DEG_TO_RAD),
				(radius * next_noise_param) * sin((next_deg - deg_span * 0.25) * DEG_TO_RAD)));
			vertices.push_back(glm::vec2(
				radius * cos(next_deg * DEG_TO_RAD),
				radius * sin(next_deg * DEG_TO_RAD)));

			ofNoFill();
			ofSetLineWidth(2);
			ofBeginShape();
			ofVertex(vertices[0]);
			ofBezierVertex(vertices[1], vertices[2], vertices[3]);
			ofEndShape();
		}
	}

	ofPopMatrix();
}

//--------------------------------------------------------------
bool Ripple::isDead() {

	return this->life < 0;
}

/* ofApp */

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

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

	ofBackground(239);
	ofSetLineWidth(3);

	this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);
	this->fbo.readToPixels(this->pixels);
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}

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

	if (ofGetFrameNum() % 4 == 0) {

		glm::vec3 location(ofRandom(100, this->fbo.getWidth() - 100), ofRandom(100, this->fbo.getHeight() - 100), ofRandom(800, 1500));
		unique_ptr<Ripple> ripple(new Ripple(location));
		this->ripple_list.push_back(move(ripple));
	}

	this->fbo.begin();
	ofClear(0);

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

		if (this->ripple_list[i]->isDead()) {

			this->ripple_list.erase(this->ripple_list.begin() + i);
		}
		else {

			this->ripple_list[i]->update();
			this->ripple_list[i]->draw();
		}
	}

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

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(11, 11), 10, 10);
}

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

	ofSetColor(255);

	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(-5, -5);

	this->fbo.draw(-25, -25);
}

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

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

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#include "ofApp.h"

/* Ripple */

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

Ripple::Ripple() : Ripple(glm::vec3()) { }

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

Ripple::Ripple(glm::vec3 location) {

this->location = location;

this->radius = 1;

this->life = 255;

this->color.setHsb(ofRandom(255), 255, 230);

}

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

void Ripple::update() {

if (this->location.z > 0) {

this->location.z = this->location.z > 20 ? this->location.z - 20 : 0;

return;

}

this->radius += 2;

this->life -= 3;

}

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

void Ripple::draw() {

ofPushMatrix();

ofTranslate(this->location);

ofSetColor(this->color);

if (this->location.z > 0) {

ofDrawLine(glm::vec3(), glm::vec3(0, 0, 30));

}

else {

if (this->life < 200) {

ofSetColor(this->color, ofMap(this->life, 0, 200, 0, 255));

}

int deg_span = 60;

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

int next_deg = deg + deg_span;

float noise_param = ofMap(ofNoise(glm::vec3(

this->location.x + cos(deg * DEG_TO_RAD),

this->location.y + sin(deg * DEG_TO_RAD),

ofGetFrameNum() * 0.008)),

0, 1, 0, 2);

float next_noise_param = ofMap(ofNoise(glm::vec3(

this->location.x + cos((deg + deg_span) * DEG_TO_RAD),

this->location.y + sin((deg + deg_span) * DEG_TO_RAD),

ofGetFrameNum() * 0.008)),

0, 1, 2, 0);

vector<glm::vec2> vertices;

vertices.push_back(glm::vec2(

radius * cos(deg * DEG_TO_RAD),

radius * sin(deg * DEG_TO_RAD)));

vertices.push_back(glm::vec2(

(radius * noise_param) * cos((deg + deg_span * 0.25) * DEG_TO_RAD),

(radius * noise_param) * sin((deg + deg_span * 0.25) * DEG_TO_RAD)));

vertices.push_back(glm::vec2(

(radius * next_noise_param) * cos((next_deg - deg_span * 0.25) * DEG_TO_RAD),

(radius * next_noise_param) * sin((next_deg - deg_span * 0.25) * DEG_TO_RAD)));

vertices.push_back(glm::vec2(

radius * cos(next_deg * DEG_TO_RAD),

radius * sin(next_deg * DEG_TO_RAD)));

ofNoFill();

ofSetLineWidth(2);

ofBeginShape();

ofVertex(vertices[0]);

ofBezierVertex(vertices[1], vertices[2], vertices[3]);

ofEndShape();

}

ofPopMatrix();

}

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

bool Ripple::isDead() {

return this->life < 0;

}

/* ofApp */

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);

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

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

if (ofGetFrameNum() % 4 == 0) {

glm::vec3 location(ofRandom(100, this->fbo.getWidth() - 100), ofRandom(100, this->fbo.getHeight() - 100), ofRandom(800, 1500));

unique_ptr<Ripple> ripple(new Ripple(location));

this->ripple_list.push_back(move(ripple));

}

this->fbo.begin();

ofClear(0);

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

if (this->ripple_list[i]->isDead()) {

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

}

else {

this->ripple_list[i]->update();

this->ripple_list[i]->draw();

}

this->fbo.end();

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

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(11, 11), 10, 10);

}

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

void ofApp::draw() {

ofSetColor(255);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(-5, -5);

this->fbo.draw(-25, -25);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200809

[ほしいものリスト]
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[ Sponsor Link ]

2020年8月8日

Sunshine. Draw by openFrameworks

[ Video ]

[ About ]
Sunshine.

[ 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) {};

	ofMesh frame;

	vector<vector<glm::vec3>> log_list;
	vector<glm::vec3> direction_list;
	vector<int> param_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) {};

ofMesh frame;

vector<vector<glm::vec3>> log_list;

vector<glm::vec3> direction_list;

vector<int> param_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(5);

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

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

	this->frame.clear();

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

		auto direction = 5 * glm::normalize(glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), 0));
		vector<glm::vec3> log;
		ofColor color;
		color.setHsb(ofRandom(255), 255, 230);
		
		log.push_back(direction * 10);
		this->log_list.push_back(log);
		this->direction_list.push_back(direction);
		this->param_list.push_back(512);
		this->color_list.push_back(color);
	}

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

		auto location = this->log_list[i].back() + this->direction_list[i];
		this->log_list[i].push_back(location);
	}

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

		int index = this->frame.getNumVertices();
		this->frame.addVertices(this->log_list[i]);

		this->param_list[i] -= 2;

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

			this->frame.addIndex(k);
			this->frame.addIndex(k + 1);
		}

		ofColor color = this->param_list[i] > 255 ? 
			this->color_list[i] : ofColor(this->color_list[i], ofMap(this->param_list[i], 0, 255, 0, 255));
		for (int k = index; k < this->frame.getNumVertices(); k++) {

			this->frame.addColor(color);
		}
	}

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

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

			this->log_list.erase(this->log_list.begin() + i);
			this->direction_list.erase(this->direction_list.begin() + i);
			this->param_list.erase(this->param_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}
}

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

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

	this->frame.drawWireframe();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(5);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

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

}

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

void ofApp::update() {

this->frame.clear();

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

auto direction = 5 * glm::normalize(glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), 0));

vector<glm::vec3> log;

ofColor color;

color.setHsb(ofRandom(255), 255, 230);

log.push_back(direction * 10);

this->log_list.push_back(log);

this->direction_list.push_back(direction);

this->param_list.push_back(512);

this->color_list.push_back(color);

}

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

auto location = this->log_list[i].back() + this->direction_list[i];

this->log_list[i].push_back(location);

}

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

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

this->frame.addVertices(this->log_list[i]);

this->param_list[i] -= 2;

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

this->frame.addIndex(k);

this->frame.addIndex(k + 1);

}

ofColor color = this->param_list[i] > 255 ?

this->color_list[i] : ofColor(this->color_list[i], ofMap(this->param_list[i], 0, 255, 0, 255));

for (int k = index; k < this->frame.getNumVertices(); k++) {

this->frame.addColor(color);

}

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

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

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

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

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

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

}

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

void ofApp::draw() {

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

this->frame.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200808

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年8月7日2020年8月7日

Creative Coding Roller Coaster. Draw by openFrameworks

[ Video ]

[ About ]
クリエイティブコーディング・ジェットコースター。

Creative Coding Roller Coaster.

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

	ofEasyCam cam;
	ofMesh face, frame;

	vector<glm::vec3> log_list;

	float len;
	vector<glm::vec3> box_location_list;
	vector<float> alpah_param_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 color);

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

ofEasyCam cam;

ofMesh face, frame;

vector<glm::vec3> log_list;

float len;

vector<glm::vec3> box_location_list;

vector<float> alpah_param_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(239, 39, 39);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	ofColor color;
	this->len = 10;
	for (auto x = -180; x <= 180; x += this->len) {

		for (auto y = -180; y <= 180; y += this->len) {

			for (auto z = -180; z <= 180; z += this->len) {

				this->box_location_list.push_back(glm::vec3(x, y, z));
				this->alpah_param_list.push_back(255);
			}
		}
	}

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

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

	ofSeedRandom(39);

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

	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	auto noise_location = glm::vec3(ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0045), 0, 1, -230, 230), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0045), 0, 1, -230, 230), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.0045), 0, 1, -230, 230));
	this->log_list.push_back(noise_location);
	while (this->log_list.size() > 30) { this->log_list.erase(this->log_list.begin()); }

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

		if (glm::distance(this->box_location_list[i], noise_location) < 15) {

			this->alpah_param_list[i] = 0;
		}

		if (this->alpah_param_list[i] > 200) {

			this->setBoxToMesh(this->face, this->frame, this->box_location_list[i], this->len, ofColor(39, ofMap(this->alpah_param_list[i], 200, 255, 0, 255)));
		}

		this->alpah_param_list[i] = this->alpah_param_list[i] >= 255 ? 255 : this->alpah_param_list[i] + 0.5;
	}
}

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

	auto direction = this->log_list[this->log_list.size() * 0.25] - this->log_list[this->log_list.size() - 1];

	this->cam.lookAt(this->log_list[this->log_list.size() - 1]);
	this->cam.setPosition(this->log_list[this->log_list.size() - 1] + direction);
	this->cam.begin();
	
	ofFill();
	ofDrawSphere(this->log_list.back(), 2);

	this->face.drawFaces();
	this->frame.drawWireframe();

	this->cam.end();
}

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

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

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

	int index = face_target.getVertices().size();

	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(index + 0); face_target.addIndex(index + 1); face_target.addIndex(index + 2);
	face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 3);

	face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 6);
	face_target.addIndex(index + 4); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

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

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

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

	face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);
	face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(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(index + 0); frame_target.addIndex(index + 1);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 0);

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

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

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

		face_target.addColor(color);
		frame_target.addColor(ofColor(239));
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(239, 39, 39);

ofSetLineWidth(3);

ofEnableDepthTest();

ofColor color;

this->len = 10;

for (auto x = -180; x <= 180; x += this->len) {

for (auto y = -180; y <= 180; y += this->len) {

for (auto z = -180; z <= 180; z += this->len) {

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

this->alpah_param_list.push_back(255);

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

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

auto noise_location = glm::vec3(ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0045), 0, 1, -230, 230), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0045), 0, 1, -230, 230), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.0045), 0, 1, -230, 230));

this->log_list.push_back(noise_location);

while (this->log_list.size() > 30) { this->log_list.erase(this->log_list.begin()); }

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

if (glm::distance(this->box_location_list[i], noise_location) < 15) {

this->alpah_param_list[i] = 0;

}

if (this->alpah_param_list[i] > 200) {

this->setBoxToMesh(this->face, this->frame, this->box_location_list[i], this->len, ofColor(39, ofMap(this->alpah_param_list[i], 200, 255, 0, 255)));

}

this->alpah_param_list[i] = this->alpah_param_list[i] >= 255 ? 255 : this->alpah_param_list[i] + 0.5;

}

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

void ofApp::draw() {

auto direction = this->log_list[this->log_list.size() * 0.25] - this->log_list[this->log_list.size() - 1];

this->cam.lookAt(this->log_list[this->log_list.size() - 1]);

this->cam.setPosition(this->log_list[this->log_list.size() - 1] + direction);

this->cam.begin();

ofFill();

ofDrawSphere(this->log_list.back(), 2);

this->face.drawFaces();

this->frame.drawWireframe();

this->cam.end();

}

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

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

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

}

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

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

int index = face_target.getVertices().size();

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

face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 3);

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 6);

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

face_target.addIndex(index + 0); face_target.addIndex(index + 4); face_target.addIndex(index + 1);

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

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

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

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

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

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

face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(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(index + 0); frame_target.addIndex(index + 1);

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

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

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

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

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

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

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

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

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

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

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

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

face_target.addColor(color);

frame_target.addColor(ofColor(239));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200807

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