junkiyoshi – ページ 49 – プログラミング de 落描き

2024年12月6日

Watching torus.

[ Video ]

[ About ]
トーラスを見る。

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v, float scale = 1.0);

	ofEasyCam cam;
	ofMesh face, line;
};

#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) {};

glm::vec3 make_point(float R, float r, float u, float v, float scale = 1.0);

ofEasyCam cam;

ofMesh face, line;

};

#include "ofApp.h"

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

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

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

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

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

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

	float phi_deg_step = 8;
	float theta_deg_step = 20;

	float R = 230;
	float threshold_1 = 0.55;
	float threshold_2 = 0.65;
	float r = R * 0.3;

	int target_deg_start = ofGetFrameNum() * 1.44;

	for (int target_deg = target_deg_start; target_deg <= target_deg_start + 180; target_deg += 180) {

		auto target = glm::vec3(R * cos(target_deg * DEG_TO_RAD), R * sin(target_deg * DEG_TO_RAD), 0);

		for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

			for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) {

				auto location = this->make_point(R, r, theta_deg, phi_deg);
				auto distance = glm::distance(target, location);

				if (distance > 250) { continue; }

				auto power = distance < 150 ? 1 : ofMap(distance, 150, 250, 1, 0);

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

				vertices.push_back(this->make_point(R, r, theta_deg - theta_deg_step * 0.49 * power - 2, phi_deg - phi_deg_step * 0.49 * power - 2));
				vertices.push_back(this->make_point(R, r, theta_deg + theta_deg_step * 0.49 * power - 2, phi_deg - phi_deg_step * 0.49 * power - 2));
				vertices.push_back(this->make_point(R, r, theta_deg - theta_deg_step * 0.49 * power - 2, phi_deg + phi_deg_step * 0.49 * power - 2));
				vertices.push_back(this->make_point(R, r, theta_deg + theta_deg_step * 0.49 * power - 2, phi_deg + phi_deg_step * 0.49 * power - 2));

				this->face.addVertices(vertices);
				this->line.addVertices(vertices);

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

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

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

	this->cam.begin();
	ofRotateX(90);

	ofSetColor(255, 128, 255);
	this->line.draw();

	ofSetColor(0);
	this->face.draw();

	this->cam.end();

	/*
	int start = 500;
	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);
		}
	}
	*/
}

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

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

	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(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

float phi_deg_step = 8;

float theta_deg_step = 20;

float R = 230;

float threshold_1 = 0.55;

float threshold_2 = 0.65;

float r = R * 0.3;

int target_deg_start = ofGetFrameNum() * 1.44;

for (int target_deg = target_deg_start; target_deg <= target_deg_start + 180; target_deg += 180) {

auto target = glm::vec3(R * cos(target_deg * DEG_TO_RAD), R * sin(target_deg * DEG_TO_RAD), 0);

for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) {

auto location = this->make_point(R, r, theta_deg, phi_deg);

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

if (distance > 250) { continue; }

auto power = distance < 150 ? 1 : ofMap(distance, 150, 250, 1, 0);

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

vector<glm::vec3> vertices;

vertices.push_back(this->make_point(R, r, theta_deg - theta_deg_step * 0.49 * power - 2, phi_deg - phi_deg_step * 0.49 * power - 2));

vertices.push_back(this->make_point(R, r, theta_deg + theta_deg_step * 0.49 * power - 2, phi_deg - phi_deg_step * 0.49 * power - 2));

vertices.push_back(this->make_point(R, r, theta_deg - theta_deg_step * 0.49 * power - 2, phi_deg + phi_deg_step * 0.49 * power - 2));

vertices.push_back(this->make_point(R, r, theta_deg + theta_deg_step * 0.49 * power - 2, phi_deg + phi_deg_step * 0.49 * power - 2));

this->face.addVertices(vertices);

this->line.addVertices(vertices);

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

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

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

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

this->line.addIndex(index + 1); this->line.addIndex(index + 3);

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

ofSetColor(255, 128, 255);

this->line.draw();

ofSetColor(0);

this->face.draw();

this->cam.end();

int start = 500;

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);

}

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

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

// 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) * scale) * cos(v);

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

auto z = r * sin(u) * scale;

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20241206

2024年12月5日2024年12月5日

Two layer.

[ Video ]

[ About ]
2層。

[ 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<ofColor> color_list;
	vector<float> life_list;

	ofEasyCam cam;
};

#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<ofColor> color_list;

vector<float> life_list;

ofEasyCam cam;

};

#include "ofApp.h"	

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofNoFill();
}

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

	ofColor color;
	for (int i = 0; i < 15; i++) {

		auto deg = ofRandom(360);
		int radius = 230;
		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

		ofColor color;
		color.setHsb(ofRandom(180, 200), 255, 100);

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);
		this->color_list.push_back(color);
		this->life_list.push_back(ofRandom(100, 150));
	}

	for (int i = 0; i < 15; i++) {

		auto deg = ofRandom(360);
		int radius = 340;
		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

		ofColor color;
		color.setHsb(ofRandom(235, 255), 255, 100);

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);
		this->color_list.push_back(color);
		this->life_list.push_back(ofRandom(100, 150));
	}

	int radius = 4;
	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;
		}

		int count = 0;
		while (true) {

			auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.01, count * 0.01 + ofGetFrameNum() * 0.02)), 0, 1, -360, 360);
			auto tmp = this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			if ((glm::length(tmp) > 100 && glm::length(tmp) < 230) || (glm::length(tmp) > 260 && glm::length(tmp) < 340) ) {

				this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				break;
			}
			else {

				count++;
			}
		}
		while (this->log_list[i].size() > 100) {

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

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

	this->cam.begin();
	ofRotateZ(90);

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

		if (this->life_list[i] > 80) {

			ofSetColor(this->color_list[i]);
			ofSetLineWidth(1);
		}
		else {

			ofSetColor(ofColor(this->color_list[i], ofMap(this->life_list[i], 0, 80, 0, 255)));
			ofSetLineWidth(ofMap(this->life_list[i], 0, 80, 0, 1));
		}

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

	this->cam.end();

	/*
	int start = 250;
	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);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

}

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

void ofApp::update() {

ofColor color;

for (int i = 0; i < 15; i++) {

auto deg = ofRandom(360);

int radius = 230;

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

ofColor color;

color.setHsb(ofRandom(180, 200), 255, 100);

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->color_list.push_back(color);

this->life_list.push_back(ofRandom(100, 150));

}

for (int i = 0; i < 15; i++) {

auto deg = ofRandom(360);

int radius = 340;

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

ofColor color;

color.setHsb(ofRandom(235, 255), 255, 100);

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->color_list.push_back(color);

this->life_list.push_back(ofRandom(100, 150));

}

int radius = 4;

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;

}

int count = 0;

while (true) {

auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.01, count * 0.01 + ofGetFrameNum() * 0.02)), 0, 1, -360, 360);

auto tmp = this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

if ((glm::length(tmp) > 100 && glm::length(tmp) < 230) || (glm::length(tmp) > 260 && glm::length(tmp) < 340) ) {

this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

break;

}

else {

count++;

}

while (this->log_list[i].size() > 100) {

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(90);

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

if (this->life_list[i] > 80) {

ofSetColor(this->color_list[i]);

ofSetLineWidth(1);

}

else {

ofSetColor(ofColor(this->color_list[i], ofMap(this->life_list[i], 0, 80, 0, 255)));

ofSetLineWidth(ofMap(this->life_list[i], 0, 80, 0, 1));

}

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

this->cam.end();

int start = 250;

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/Insta20241205

2024年12月4日

Twin colors.

[ Video ]

[ About ]
ツインカラー。

[ 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) {};

	vector<vector<glm::vec2>> log_list;
	vector<ofColor> color_list;
	vector<float> life_list;

	ofEasyCam cam;
};

#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<ofColor> color_list;

vector<float> life_list;

ofEasyCam cam;

};

#include "ofApp.h"	

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);
	ofNoFill();
}

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

	ofColor color;
	for (int i = 0; i < 10; i++) {

		auto deg = ofRandom(360);
		int radius = 200;
		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

		ofColor color;
		color.setHsb(ofRandom(0, 30), 255, 100);

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);
		this->color_list.push_back(color);
		this->life_list.push_back(ofRandom(100, 150));
	}

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

		auto deg = ofRandom(360);
		int radius = 300;
		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

		ofColor color;
		color.setHsb(ofRandom(80, 110), 255, 100);

		vector<glm::vec2> log;
		log.push_back(location);
		this->log_list.push_back(log);
		this->color_list.push_back(color);
		this->life_list.push_back(ofRandom(100, 150));
	}

	int radius = 4;
	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;
		}

		int count = 0;
		while (true) {

			auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.01, count * 0.01 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360);
			auto tmp = this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			if (glm::length(tmp) > 200 && glm::length(tmp) < 300) {

				this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				break;
			}
			else {

				count++;
			}
		}
		while (this->log_list[i].size() > 100) {

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

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

	this->cam.begin();
	ofRotateZ(90);

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

		if (this->life_list[i] > 80) {

			ofSetColor(this->color_list[i]);
			ofSetLineWidth(1);
		}
		else {

			ofSetColor(ofColor(this->color_list[i], ofMap(this->life_list[i], 0, 80, 0, 255)));
			ofSetLineWidth(ofMap(this->life_list[i], 0, 80, 0, 1));
		}

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

	this->cam.end();

	/*
	int start = 250;
	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);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);

ofNoFill();

}

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

void ofApp::update() {

ofColor color;

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

auto deg = ofRandom(360);

int radius = 200;

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

ofColor color;

color.setHsb(ofRandom(0, 30), 255, 100);

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->color_list.push_back(color);

this->life_list.push_back(ofRandom(100, 150));

}

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

auto deg = ofRandom(360);

int radius = 300;

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

ofColor color;

color.setHsb(ofRandom(80, 110), 255, 100);

vector<glm::vec2> log;

log.push_back(location);

this->log_list.push_back(log);

this->color_list.push_back(color);

this->life_list.push_back(ofRandom(100, 150));

}

int radius = 4;

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;

}

int count = 0;

while (true) {

auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.01, count * 0.01 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360);

auto tmp = this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

if (glm::length(tmp) > 200 && glm::length(tmp) < 300) {

this->log_list[i].push_back(this->log_list[i].back() + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

break;

}

else {

count++;

}

while (this->log_list[i].size() > 100) {

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(90);

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

if (this->life_list[i] > 80) {

ofSetColor(this->color_list[i]);

ofSetLineWidth(1);

}

else {

ofSetColor(ofColor(this->color_list[i], ofMap(this->life_list[i], 0, 80, 0, 255)));

ofSetLineWidth(ofMap(this->life_list[i], 0, 80, 0, 1));

}

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

this->cam.end();

int start = 250;

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/Insta20241204

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