2024年1月 – ページ 3 – プログラミング de 落描き

2024年1月25日

Fast and slow.

[ Video ]

[ About ]
静動。

[ 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;

	float noise_param;

	glm::vec3 target_location, camera_location;
};

#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;

float noise_param;

glm::vec3 target_location, camera_location;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	ofSetLineWidth(1.5);

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	this->noise_param = ofRandom(1000);
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 50 < 25) {

		this->noise_param += ofMap(ofGetFrameNum() % 50, 0, 25, 3, 0.01);
	}
	else {

		this->noise_param += 0.01;
	}

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

	frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	auto base_noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	this->camera_location = glm::vec3(
		ofMap(ofNoise(base_noise_seed.x, this->noise_param * 0.015), 0, 1, -400, 400),
		ofMap(ofNoise(base_noise_seed.y, this->noise_param * 0.015), 0, 1, -400, 400),
		ofMap(ofNoise(base_noise_seed.z, this->noise_param * 0.015), 0, 1, -400, 400));

	this->target_location = glm::vec3(
		ofMap(ofNoise(base_noise_seed.x, (this->noise_param + 30) * 0.015), 0, 1, -400, 400),
		ofMap(ofNoise(base_noise_seed.y, (this->noise_param + 30) * 0.015), 0, 1, -400, 400),
		ofMap(ofNoise(base_noise_seed.z, (this->noise_param + 30) * 0.015), 0, 1, -400, 400));

	for (int k = 0; k < 7; k++) {

		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		auto start_index = this->face.getNumVertices();

		ofColor color;
		for (int i = 0; i < 50; i++) {

			auto param = glm::vec3(25 - abs(i - 25), 0, 0);
			if (param.x > 15) { param.x = 15; }

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

			auto base_location = glm::vec3(
				ofMap(ofNoise(base_noise_seed.x, (i + this->noise_param) * 0.015), 0, 1, -400, 400),
				ofMap(ofNoise(base_noise_seed.y, (i + this->noise_param) * 0.015), 0, 1, -400, 400),
				ofMap(ofNoise(base_noise_seed.z, (i + this->noise_param) * 0.015), 0, 1, -400, 400));

			auto location = glm::vec3(
				ofMap(ofNoise(noise_seed.x, (i * 0.02 + this->noise_param * 0.05)), 0, 1, -200, 200),
				ofMap(ofNoise(noise_seed.y, (i * 0.02 + this->noise_param * 0.05)), 0, 1, -200, 200),
				ofMap(ofNoise(noise_seed.z, (i * 0.02 + this->noise_param * 0.05)), 0, 1, -200, 200));

			location += base_location;

			this->face.addVertex(location + param);
			this->face.addVertex(location - param);

			color.setHsb(ofMap(k, 0, 7, 0, 255), 255, 255);

			this->face.addColor(ofColor(color, 128));
			this->face.addColor(ofColor(color, 128));

			this->frame.addVertex(location + param);
			this->frame.addVertex(location - param);

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

			if (i > 0) {

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

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

		this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);
		this->frame.addIndex(frame.getNumVertices() - 1); this->frame.addIndex(frame.getNumVertices() - 2);
	}
}

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

	auto camera_location = this->camera_location + glm::vec3(0, 0, 500);

	this->cam.setPosition(camera_location);
	this->cam.setTarget(target_location);
	this->cam.lookAt(target_location);

	this->cam.begin();

	this->face.drawFaces();

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

	this->cam.end();

	/*
	int start = 100;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetLineWidth(1.5);

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

this->noise_param = ofRandom(1000);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 50 < 25) {

this->noise_param += ofMap(ofGetFrameNum() % 50, 0, 25, 3, 0.01);

}

else {

this->noise_param += 0.01;

}

this->face.clear();

this->frame.clear();

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

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

this->camera_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, this->noise_param * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.y, this->noise_param * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.z, this->noise_param * 0.015), 0, 1, -400, 400));

this->target_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (this->noise_param + 30) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.y, (this->noise_param + 30) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.z, (this->noise_param + 30) * 0.015), 0, 1, -400, 400));

for (int k = 0; k < 7; k++) {

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

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

ofColor color;

for (int i = 0; i < 50; i++) {

auto param = glm::vec3(25 - abs(i - 25), 0, 0);

if (param.x > 15) { param.x = 15; }

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

auto base_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (i + this->noise_param) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.y, (i + this->noise_param) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.z, (i + this->noise_param) * 0.015), 0, 1, -400, 400));

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, (i * 0.02 + this->noise_param * 0.05)), 0, 1, -200, 200),

ofMap(ofNoise(noise_seed.y, (i * 0.02 + this->noise_param * 0.05)), 0, 1, -200, 200),

ofMap(ofNoise(noise_seed.z, (i * 0.02 + this->noise_param * 0.05)), 0, 1, -200, 200));

location += base_location;

this->face.addVertex(location + param);

this->face.addVertex(location - param);

color.setHsb(ofMap(k, 0, 7, 0, 255), 255, 255);

this->face.addColor(ofColor(color, 128));

this->frame.addVertex(location + param);

this->frame.addVertex(location - param);

this->frame.addColor(color);

if (i > 0) {

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

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

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

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

}

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

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

}

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

void ofApp::draw() {

auto camera_location = this->camera_location + glm::vec3(0, 0, 500);

this->cam.setPosition(camera_location);

this->cam.setTarget(target_location);

this->cam.lookAt(target_location);

this->cam.begin();

this->face.drawFaces();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

int start = 100;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20240125

2024年1月24日

Random walkers.

[ Video ]

[ About ]
ランダムウォーカー。

[ 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;

	glm::vec3 target_location, camera_location;
};

#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;

glm::vec3 target_location, camera_location;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	auto base_noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	this->camera_location = glm::vec3(
		ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum()) * 0.015), 0, 1, -400, 400),
		ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum()) * 0.015), 0, 1, -400, 400),
		ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum()) * 0.015), 0, 1, -400, 400));

	this->target_location = glm::vec3(
		ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + 30) * 0.015), 0, 1, -400, 400),
		ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + 30) * 0.015), 0, 1, -400, 400),
		ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum() + 30) * 0.015), 0, 1, -400, 400));

	for (int k = 0; k < 10; k++) {

		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		auto start_index = this->face.getNumVertices();

		ofColor color;
		for (int i = 0; i < 30; i++) {

			auto param = glm::vec3(15 - abs(i - 15), 0, 0);

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

			auto base_location = glm::vec3(
				ofMap(ofNoise(base_noise_seed.x, (i + ofGetFrameNum()) * 0.015), 0, 1, -400, 400),
				ofMap(ofNoise(base_noise_seed.y, (i + ofGetFrameNum()) * 0.015), 0, 1, -400, 400),
				ofMap(ofNoise(base_noise_seed.z, (i + ofGetFrameNum()) * 0.015), 0, 1, -400, 400));

			auto location = glm::vec3(
				ofMap(ofNoise(noise_seed.x, (i * 0.02 + ofGetFrameNum() * 0.05)), 0, 1, -200, 200),
				ofMap(ofNoise(noise_seed.y, (i * 0.02 + ofGetFrameNum() * 0.05)), 0, 1, -200, 200),
				ofMap(ofNoise(noise_seed.z, (i * 0.02 + ofGetFrameNum() * 0.05)), 0, 1, -200, 200));

			location += base_location;

			this->face.addVertex(location + param);
			this->face.addVertex(location - param);

			color.setHsb(ofMap(k, 0, 10, 0, 255), 255, 255);

			this->face.addColor(color);
			this->face.addColor(color);

			this->frame.addVertex(location + param);
			this->frame.addVertex(location - param);

			this->frame.addColor(ofColor(39));
			this->frame.addColor(ofColor(39));

			if (i > 0) {

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

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

		this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);
		this->frame.addIndex(frame.getNumVertices() - 1); this->frame.addIndex(frame.getNumVertices() - 2);
	}
}

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

	auto camera_location = this->camera_location + glm::vec3(0, 0, 650);

	this->cam.setPosition(camera_location);
	this->cam.setTarget(target_location);
	this->cam.lookAt(target_location);

	this->cam.begin();

	this->face.drawFaces();

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

	this->cam.end();

	/*
	int start = 8;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

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

this->camera_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum()) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum()) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum()) * 0.015), 0, 1, -400, 400));

this->target_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + 30) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + 30) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum() + 30) * 0.015), 0, 1, -400, 400));

for (int k = 0; k < 10; k++) {

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

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

ofColor color;

for (int i = 0; i < 30; i++) {

auto param = glm::vec3(15 - abs(i - 15), 0, 0);

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

auto base_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (i + ofGetFrameNum()) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.y, (i + ofGetFrameNum()) * 0.015), 0, 1, -400, 400),

ofMap(ofNoise(base_noise_seed.z, (i + ofGetFrameNum()) * 0.015), 0, 1, -400, 400));

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, (i * 0.02 + ofGetFrameNum() * 0.05)), 0, 1, -200, 200),

ofMap(ofNoise(noise_seed.y, (i * 0.02 + ofGetFrameNum() * 0.05)), 0, 1, -200, 200),

ofMap(ofNoise(noise_seed.z, (i * 0.02 + ofGetFrameNum() * 0.05)), 0, 1, -200, 200));

location += base_location;

this->face.addVertex(location + param);

this->face.addVertex(location - param);

color.setHsb(ofMap(k, 0, 10, 0, 255), 255, 255);

this->face.addColor(color);

this->frame.addVertex(location + param);

this->frame.addVertex(location - param);

this->frame.addColor(ofColor(39));

if (i > 0) {

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

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

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

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

}

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

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

}

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

void ofApp::draw() {

auto camera_location = this->camera_location + glm::vec3(0, 0, 650);

this->cam.setPosition(camera_location);

this->cam.setTarget(target_location);

this->cam.lookAt(target_location);

this->cam.begin();

this->face.drawFaces();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

int start = 8;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20240124

2024年1月23日2024年1月23日

Ray.

[ Video ]

[ About ]
光。

[ 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) {};

	vector<vector<glm::vec2>> log_list;
	vector<float> seed_list;
	vector<glm::vec2> velocity_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) {};

vector<vector<glm::vec2>> log_list;

vector<float> seed_list;

vector<glm::vec2> velocity_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

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

		if (glm::length(this->log_list[i].back()) > 1440) {

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

			continue;
		}

		auto feature = this->velocity_list[i] * 100;
		auto deg = ofMap(ofNoise(this->seed_list[i], ofGetFrameNum() * 0.005), 0, 1, 0, 360);
		feature += glm::vec2(40 * cos(deg * DEG_TO_RAD), 40 * sin(deg * DEG_TO_RAD));
		auto next = this->log_list[i].back() + glm::normalize(feature) * 15;

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

		while (this->log_list[i].size() > 30) {

			this->log_list[i].erase(this->log_list[i].begin());
		}
	}

	ofColor color;
	auto radius = 50;
	for (int i = 0; i < 18; i++) {

		auto deg = ofRandom(360);
		auto next_deg = deg + 10;

		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);

		this->seed_list.push_back(ofMap(ofNoise(glm::vec3(i, location * 0.001)), 0, 1, 0, 1000));
		this->velocity_list.push_back(glm::normalize(location - next) * 2);

		color.setHsb(ofRandom(255), ofRandom(200, 255), ofRandom(200, 255));
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int sample_count = 180;
	for (int i = 0; i < this->log_list.size(); i++) {

		ofFill();
		ofSetColor(this->color_list[i]);

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

	/*
	int start = 150;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

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

if (glm::length(this->log_list[i].back()) > 1440) {

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

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

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

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

continue;

}

auto feature = this->velocity_list[i] * 100;

auto deg = ofMap(ofNoise(this->seed_list[i], ofGetFrameNum() * 0.005), 0, 1, 0, 360);

feature += glm::vec2(40 * cos(deg * DEG_TO_RAD), 40 * sin(deg * DEG_TO_RAD));

auto next = this->log_list[i].back() + glm::normalize(feature) * 15;

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

while (this->log_list[i].size() > 30) {

this->log_list[i].erase(this->log_list[i].begin());

}

ofColor color;

auto radius = 50;

for (int i = 0; i < 18; i++) {

auto deg = ofRandom(360);

auto next_deg = deg + 10;

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

auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->seed_list.push_back(ofMap(ofNoise(glm::vec3(i, location * 0.001)), 0, 1, 0, 1000));

this->velocity_list.push_back(glm::normalize(location - next) * 2);

color.setHsb(ofRandom(255), ofRandom(200, 255), ofRandom(200, 255));

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int sample_count = 180;

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

ofFill();

ofSetColor(this->color_list[i]);

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

int start = 150;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20240123

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