プログラミング de 落描き – ページ 576 – 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12月29日

Parallel capture. Draw by openFrameworks

[ Video ]

[ About ]
パラレルキャプチャ。

Parallel capture.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"
#include "ofxBox2d.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) {};

	cv::VideoCapture cap;
	cv::Size cap_size;
	int number_of_frames;
	vector<cv::Mat> frame_list;

	ofImage image;
	cv::Mat frame;
	ofMesh mesh;

	vector<glm::vec3> draw_location_list;
	vector<int> draw_index_list;

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dRect>> box2d_rect_list;
	vector<int> box2d_frame_index_list;
	vector<float> box2d_life_list;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

#include "ofxBox2d.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) {};

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

ofImage image;

cv::Mat frame;

ofMesh mesh;

vector<glm::vec3> draw_location_list;

vector<int> draw_index_list;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dRect>> box2d_rect_list;

vector<int> box2d_frame_index_list;

vector<float> box2d_life_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(255);
	ofSetLineWidth(3);

	this->cap.open("D:\\MP4\\Pexels Videos 2441067.mp4");
	this->cap_size = cv::Size(128, 72);

	this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

	int skip_frame = 24 * 120;
	this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT) - skip_frame;
	this->cap.set(cv::CAP_PROP_POS_FRAMES, skip_frame);
	for (int i = 0; i < this->number_of_frames; i++) {

		cv::Mat src, tmp;
		this->cap >> src;
		if (src.empty()) {

			continue;
		}

		cv::resize(src, tmp, this->cap_size);
		cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

		this->frame_list.push_back(tmp);
	}

	this->mesh.addVertex(glm::vec3(this->cap_size.width * -0.5, this->cap_size.height * -0.5, 0));
	this->mesh.addVertex(glm::vec3(this->cap_size.width * 0.5,  this->cap_size.height * -0.5, 0));
	this->mesh.addVertex(glm::vec3(this->cap_size.width * 0.5,  this->cap_size.height * 0.5, 0));
	this->mesh.addVertex(glm::vec3(this->cap_size.width * -0.5, this->cap_size.height * 0.5, 0));
	
	this->mesh.addTexCoord(glm::vec3(0, 0, 0));
	this->mesh.addTexCoord(glm::vec3(this->cap_size.width, 0, 0));
	this->mesh.addTexCoord(glm::vec3(this->cap_size.width, this->cap_size.height, 0));
	this->mesh.addTexCoord(glm::vec3(0, this->cap_size.height, 0));

	this->mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(2);
	this->mesh.addIndex(0); mesh.addIndex(2); mesh.addIndex(3);

	for (int x = 40 + this->cap_size.width * 0.5; x <= ofGetWidth(); x += this->cap_size.width) {

		for (int y = 40 + this->cap_size.height * 0.5; y <= ofGetHeight() * 0.5; y += this->cap_size.height) {

			this->draw_location_list.push_back(glm::vec3(x, y, 0));
			this->draw_index_list.push_back(ofRandom(this->number_of_frames));
		}
	}

	this->box2d.init();
	this->box2d.setGravity(0, 50);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();
}

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

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

		int n = int(ofMap(ofNoise(this->draw_location_list[i].x * 0.5625 * 0.005, this->draw_location_list[i].y * 0.005, ofGetFrameNum() * 0.0005), 0, 1, 0, this->number_of_frames * 3)) % this->number_of_frames;
		this->draw_index_list[i] = n;
	}

	for (int i = this->box2d_rect_list.size() - 1; i > -1; i--) {

		this->box2d_life_list[i] -= 3;
		if (this->box2d_life_list[i] < 0) {

			this->box2d_rect_list.erase(this->box2d_rect_list.begin() + i);
			this->box2d_frame_index_list.erase(this->box2d_frame_index_list.begin() + i);
			this->box2d_life_list.erase(this->box2d_life_list.begin() + i);
		}
	}

	if (ofGetFrameNum() % 12 == 0) {

		int location_index = ofRandom(this->draw_location_list.size());
		int frame_index = this->draw_index_list[location_index];

		auto box2d_rect = make_shared<ofxBox2dRect>();
		box2d_rect->setPhysics(0.5, 0.21, 0.4);
		box2d_rect->setup(this->box2d.getWorld(), this->draw_location_list[location_index].x, this->draw_location_list[location_index].y, this->cap_size.width, this->cap_size.height);

		this->box2d_rect_list.push_back(box2d_rect);
		this->box2d_frame_index_list.push_back(frame_index);
		this->box2d_life_list.push_back(512);
	}

	this->box2d.update();
}

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

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

		this->frame_list[this->draw_index_list[i]].copyTo(this->frame);
		this->image.update();

		ofPushMatrix();
		ofTranslate(this->draw_location_list[i]);

		ofSetColor(255);
		ofFill();
		this->image.bind();
		mesh.draw();
		this->image.unbind();

		ofSetColor(39);
		ofNoFill();
		ofDrawRectangle(this->cap_size.width * -0.5, this->cap_size.height * -0.5, this->cap_size.width, this->cap_size.height);

		ofPopMatrix();
	}

	for (int i = 0; i < this->box2d_rect_list.size(); i++) {

		this->frame_list[this->box2d_frame_index_list[i]].copyTo(this->frame);
		this->image.update();

		ofPushMatrix();
		ofTranslate(this->box2d_rect_list[i]->getPosition());
		ofRotate(this->box2d_rect_list[i]->getRotation());

		auto alpha = this->box2d_life_list[i] > 255 ? 255 : this->box2d_life_list[i];

		ofSetColor(255, alpha);
		ofFill();
		this->image.bind();
		mesh.draw();
		this->image.unbind();

		ofSetColor(39);
		ofNoFill();
		ofDrawRectangle(this->cap_size.width * -0.5, this->cap_size.height * -0.5, this->cap_size.width, this->cap_size.height);

		ofPopMatrix();
	}
}

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

ofSetColor(255);

ofSetLineWidth(3);

this->cap.open("D:\\MP4\\Pexels Videos 2441067.mp4");

this->cap_size = cv::Size(128, 72);

this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);

this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

int skip_frame = 24 * 120;

this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT) - skip_frame;

this->cap.set(cv::CAP_PROP_POS_FRAMES, skip_frame);

for (int i = 0; i < this->number_of_frames; i++) {

cv::Mat src, tmp;

this->cap >> src;

if (src.empty()) {

continue;

}

cv::resize(src, tmp, this->cap_size);

cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

this->frame_list.push_back(tmp);

}

this->mesh.addVertex(glm::vec3(this->cap_size.width * -0.5, this->cap_size.height * -0.5, 0));

this->mesh.addVertex(glm::vec3(this->cap_size.width * 0.5, this->cap_size.height * -0.5, 0));

this->mesh.addVertex(glm::vec3(this->cap_size.width * 0.5, this->cap_size.height * 0.5, 0));

this->mesh.addVertex(glm::vec3(this->cap_size.width * -0.5, this->cap_size.height * 0.5, 0));

this->mesh.addTexCoord(glm::vec3(0, 0, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width, 0, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width, this->cap_size.height, 0));

this->mesh.addTexCoord(glm::vec3(0, this->cap_size.height, 0));

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

this->mesh.addIndex(0); mesh.addIndex(2); mesh.addIndex(3);

for (int x = 40 + this->cap_size.width * 0.5; x <= ofGetWidth(); x += this->cap_size.width) {

for (int y = 40 + this->cap_size.height * 0.5; y <= ofGetHeight() * 0.5; y += this->cap_size.height) {

this->draw_location_list.push_back(glm::vec3(x, y, 0));

this->draw_index_list.push_back(ofRandom(this->number_of_frames));

}

this->box2d.init();

this->box2d.setGravity(0, 50);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

}

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

void ofApp::update() {

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

int n = int(ofMap(ofNoise(this->draw_location_list[i].x * 0.5625 * 0.005, this->draw_location_list[i].y * 0.005, ofGetFrameNum() * 0.0005), 0, 1, 0, this->number_of_frames * 3)) % this->number_of_frames;

this->draw_index_list[i] = n;

}

for (int i = this->box2d_rect_list.size() - 1; i > -1; i--) {

this->box2d_life_list[i] -= 3;

if (this->box2d_life_list[i] < 0) {

this->box2d_rect_list.erase(this->box2d_rect_list.begin() + i);

this->box2d_frame_index_list.erase(this->box2d_frame_index_list.begin() + i);

this->box2d_life_list.erase(this->box2d_life_list.begin() + i);

}

if (ofGetFrameNum() % 12 == 0) {

int location_index = ofRandom(this->draw_location_list.size());

int frame_index = this->draw_index_list[location_index];

auto box2d_rect = make_shared<ofxBox2dRect>();

box2d_rect->setPhysics(0.5, 0.21, 0.4);

box2d_rect->setup(this->box2d.getWorld(), this->draw_location_list[location_index].x, this->draw_location_list[location_index].y, this->cap_size.width, this->cap_size.height);

this->box2d_rect_list.push_back(box2d_rect);

this->box2d_frame_index_list.push_back(frame_index);

this->box2d_life_list.push_back(512);

}

this->box2d.update();

}

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

void ofApp::draw() {

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

this->frame_list[this->draw_index_list[i]].copyTo(this->frame);

this->image.update();

ofPushMatrix();

ofTranslate(this->draw_location_list[i]);

ofSetColor(255);

ofFill();

this->image.bind();

mesh.draw();

this->image.unbind();

ofSetColor(39);

ofNoFill();

ofDrawRectangle(this->cap_size.width * -0.5, this->cap_size.height * -0.5, this->cap_size.width, this->cap_size.height);

ofPopMatrix();

}

for (int i = 0; i < this->box2d_rect_list.size(); i++) {

this->frame_list[this->box2d_frame_index_list[i]].copyTo(this->frame);

this->image.update();

ofPushMatrix();

ofTranslate(this->box2d_rect_list[i]->getPosition());

ofRotate(this->box2d_rect_list[i]->getRotation());

auto alpha = this->box2d_life_list[i] > 255 ? 255 : this->box2d_life_list[i];

ofSetColor(255, alpha);

ofFill();

this->image.bind();

mesh.draw();

this->image.unbind();

ofSetColor(39);

ofNoFill();

ofDrawRectangle(this->cap_size.width * -0.5, this->cap_size.height * -0.5, this->cap_size.width, this->cap_size.height);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201229/

2020年12月28日

Rainbow. Draw by openFrameworks

[ Video ]

[ About ]
Rainbow.

[ 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;

	vector<glm::vec3> location_list;
	vector<ofColor> base_color_list;

	glm::vec3 noise_seed;
	vector<vector<glm::vec3>> log_list;
	vector<ofColor> color_list;
	vector<float> life_list;
	vector<float> line_with_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;

vector<glm::vec3> location_list;

vector<ofColor> base_color_list;

glm::vec3 noise_seed;

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

vector<ofColor> color_list;

vector<float> life_list;

vector<float> line_with_list;

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

	ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(100, 3);
	vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces();

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

		for (int i = 0; i < triangles.size(); i++) {

			auto average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;
			this->location_list.push_back(average + glm::vec3(x, x, 0));
		}
	}

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

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

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

	int radius = 3;

	while (this->log_list.size() < 550) {

		int location_index = ofRandom(this->location_list.size());
		vector<glm::vec3> log;
		log.push_back(this->location_list[location_index]);
		this->log_list.push_back(log);
		this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);
		this->life_list.push_back(270);
		this->line_with_list.push_back(ofRandom(2));
	}

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

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

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

			continue;
		}

		auto x = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0025, this->noise_seed.x + ofGetFrameNum() * 0.005)), 0, 1, -25, 25);
		auto y = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0025, this->noise_seed.y + ofGetFrameNum() * 0.005)), 0, 1, -25, 25);
		auto z = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0025, this->noise_seed.z + ofGetFrameNum() * 0.005)), 0, 1, -25, 25);
		this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(x, y, z));
	}
}

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

	this->cam.begin();
	ofRotateX(180);
	ofRotateY(ofGetFrameNum() * 0.75);

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

		ofSetLineWidth(this->line_with_list[i]);

		ofSetColor(this->color_list[i]);
		ofFill();
		ofDrawSphere(this->log_list[i].front(), 2);

		auto alpha = this->life_list[i] > 60 ? 255 : ofMap(this->life_list[i], 0, 60, 0, 255);
		ofSetColor(this->color_list[i], alpha);

		ofNoFill();
		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();
	}

	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(0);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(100, 3);

vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces();

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

for (int i = 0; i < triangles.size(); i++) {

auto average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;

this->location_list.push_back(average + glm::vec3(x, x, 0));

}

ofColor color;

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

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

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

void ofApp::update() {

int radius = 3;

while (this->log_list.size() < 550) {

int location_index = ofRandom(this->location_list.size());

vector<glm::vec3> log;

log.push_back(this->location_list[location_index]);

this->log_list.push_back(log);

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

this->life_list.push_back(270);

this->line_with_list.push_back(ofRandom(2));

}

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

this->life_list[i] -= 1;

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

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

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

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

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

continue;

}

auto x = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0025, this->noise_seed.x + ofGetFrameNum() * 0.005)), 0, 1, -25, 25);

auto y = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0025, this->noise_seed.y + ofGetFrameNum() * 0.005)), 0, 1, -25, 25);

auto z = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0025, this->noise_seed.z + ofGetFrameNum() * 0.005)), 0, 1, -25, 25);

this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(x, y, z));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofRotateY(ofGetFrameNum() * 0.75);

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

ofSetLineWidth(this->line_with_list[i]);

ofSetColor(this->color_list[i]);

ofFill();

ofDrawSphere(this->log_list[i].front(), 2);

auto alpha = this->life_list[i] > 60 ? 255 : ofMap(this->life_list[i], 0, 60, 0, 255);

ofSetColor(this->color_list[i], alpha);

ofNoFill();

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201228

2020年12月27日

Grow and wither. Draw by openframeworks

[ Video ]

[ About ]
成長して枯れる。

Grow and wither.

[ 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;

	vector<glm::vec3> location_list;

	glm::vec3 noise_seed;
	vector<vector<glm::vec3>> log_list;
	vector<ofColor> color_list;
	vector<float> life_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;

vector<glm::vec3> location_list;

glm::vec3 noise_seed;

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

vector<ofColor> color_list;

vector<float> life_list;

};

#include "ofApp.h"	

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

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

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

	this->noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

	ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(100, 3);
	vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces();
	for (int i = 0; i < triangles.size(); i++) {

		ofPoint average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;
		this->location_list.push_back(average);
	}
}

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

	int radius = 3;

	while (this->log_list.size() < 450) {

		int location_index = ofRandom(this->location_list.size());
		vector<glm::vec3> log;
		log.push_back(this->location_list[location_index]);
		this->log_list.push_back(log);
		this->color_list.push_back(ofColor(ofRandom(39, 139)));
		this->life_list.push_back(270);
	}

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

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

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

			continue;
		}

		auto x = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.x + ofGetFrameNum() * 0.005)), 0, 1, -15, 15);
		auto y = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.y + ofGetFrameNum() * 0.005)), 0, 1, -15, 15);
		auto z = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.z + ofGetFrameNum() * 0.005)), 0, 1, -15, 15);
		this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(x, y, z));
	}
}

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

	this->cam.begin();
	ofRotateX(180);
	ofRotateY(ofGetFrameNum() * 0.75);

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

		ofSetColor(this->color_list[i]);
		ofFill();
		ofDrawSphere(this->log_list[i].front(), 2);

		auto alpha = this->life_list[i] > 60 ? 255 : ofMap(this->life_list[i], 0, 60, 0, 255);
		ofSetColor(this->color_list[i], alpha);

		ofNoFill();
		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

this->noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(100, 3);

vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces();

for (int i = 0; i < triangles.size(); i++) {

ofPoint average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;

this->location_list.push_back(average);

}

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

void ofApp::update() {

int radius = 3;

while (this->log_list.size() < 450) {

int location_index = ofRandom(this->location_list.size());

vector<glm::vec3> log;

log.push_back(this->location_list[location_index]);

this->log_list.push_back(log);

this->color_list.push_back(ofColor(ofRandom(39, 139)));

this->life_list.push_back(270);

}

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

this->life_list[i] -= 1;

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

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

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

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

continue;

}

auto x = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.x + ofGetFrameNum() * 0.005)), 0, 1, -15, 15);

auto y = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.y + ofGetFrameNum() * 0.005)), 0, 1, -15, 15);

auto z = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.0065, this->noise_seed.z + ofGetFrameNum() * 0.005)), 0, 1, -15, 15);

this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(x, y, z));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofRotateY(ofGetFrameNum() * 0.75);

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

ofSetColor(this->color_list[i]);

ofFill();

ofDrawSphere(this->log_list[i].front(), 2);

auto alpha = this->life_list[i] > 60 ? 255 : ofMap(this->life_list[i], 0, 60, 0, 255);

ofSetColor(this->color_list[i], alpha);

ofNoFill();

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201227

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