2025年2月 – ページ 5 – プログラミング de 落描き

2025年2月16日

Rings.

[ Video ]

[ About ]
輪。

[ 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, glm::vec3 rotation, float radius, float height, ofColor face_color, ofColor frame_color);

	ofEasyCam cam;
	ofMesh face, frame;

	vector<float> radius_list;
	vector<glm::vec3> rotation_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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, glm::vec3 rotation, float radius, float height, ofColor face_color, ofColor frame_color);

ofEasyCam cam;

ofMesh face, frame;

vector<float> radius_list;

vector<glm::vec3> rotation_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

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

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

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

	ofSeedRandom(39);
	glm::vec3 noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

	if (ofGetFrameNum() % 2 == 0) {

		this->radius_list.push_back(0);
		
		this->rotation_list.push_back(glm::vec3(

			ofMap(ofNoise(noise_param.x, ofGetFrameNum() * 0.03), 0, 1, -360, 360),
			ofMap(ofNoise(noise_param.y, ofGetFrameNum() * 0.03), 0, 1, -360, 360),
			ofMap(ofNoise(noise_param.z, ofGetFrameNum() * 0.03), 0, 1, -360, 360)));

		ofColor color;
		color.setHsb((ofGetFrameNum() * 2) % 255, 180, 200);
		this->color_list.push_back(color);
	}

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

		this->radius_list[i] += 3;

		if (this->radius_list[i] >= 250) {

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

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

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

		auto alpha = this->radius_list[i] < 50 ? 255 : ofMap(this->radius_list[i], 50, 255, 255, 0);
		this->setRingToMesh(this->face, this->frame, glm::vec3(), this->rotation_list[i], this->radius_list[i], ofMap(this->radius_list[i], 0, 255, 10, 0), ofColor(this->color_list[i], alpha), ofColor(255, alpha));
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 1.44);

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

	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);
		}
	}
	*/
}

//--------------------------------------------------------------
void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, glm::vec3 rotation, float radius, float height, ofColor face_color, ofColor frame_color) {

	int index = face_target.getNumVertices();

	for (int deg = 0; deg < 360; deg += 5) {

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3(radius * cos((deg + 5) * DEG_TO_RAD), radius * sin((deg + 5) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3(radius * cos((deg + 5) * DEG_TO_RAD), radius * sin((deg + 5) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * 0.5));

		for (auto& vertex : vertices) {

			auto rotation_x = glm::rotate(glm::mat4(), rotation.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), rotation.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), rotation.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

			vertex = glm::vec4(vertex, 0) * rotation_y * rotation_x + glm::vec4(location, 0);
		}

		auto face_index = face_target.getNumVertices();
		face_target.addVertices(vertices);

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

		auto frame_index = frame_target.getNumVertices();
		frame_target.addVertices(vertices);

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

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

			face_target.addColor(face_color);
			frame_target.addColor(frame_color);
		}
	}
}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

glm::vec3 noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

if (ofGetFrameNum() % 2 == 0) {

this->radius_list.push_back(0);

this->rotation_list.push_back(glm::vec3(

ofMap(ofNoise(noise_param.x, ofGetFrameNum() * 0.03), 0, 1, -360, 360),

ofMap(ofNoise(noise_param.y, ofGetFrameNum() * 0.03), 0, 1, -360, 360),

ofMap(ofNoise(noise_param.z, ofGetFrameNum() * 0.03), 0, 1, -360, 360)));

ofColor color;

color.setHsb((ofGetFrameNum() * 2) % 255, 180, 200);

this->color_list.push_back(color);

}

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

this->radius_list[i] += 3;

if (this->radius_list[i] >= 250) {

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

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

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

}

this->face.clear();

this->frame.clear();

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

auto alpha = this->radius_list[i] < 50 ? 255 : ofMap(this->radius_list[i], 50, 255, 255, 0);

this->setRingToMesh(this->face, this->frame, glm::vec3(), this->rotation_list[i], this->radius_list[i], ofMap(this->radius_list[i], 0, 255, 10, 0), ofColor(this->color_list[i], alpha), ofColor(255, alpha));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 1.44);

this->face.draw();

this->frame.drawWireframe();

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);

}

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

void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, glm::vec3 rotation, float radius, float height, ofColor face_color, ofColor frame_color) {

int index = face_target.getNumVertices();

for (int deg = 0; deg < 360; deg += 5) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3(radius * cos((deg + 5) * DEG_TO_RAD), radius * sin((deg + 5) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3(radius * cos((deg + 5) * DEG_TO_RAD), radius * sin((deg + 5) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * 0.5));

for (auto& vertex : vertices) {

auto rotation_x = glm::rotate(glm::mat4(), rotation.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), rotation.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), rotation.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

vertex = glm::vec4(vertex, 0) * rotation_y * rotation_x + glm::vec4(location, 0);

}

auto face_index = face_target.getNumVertices();

face_target.addVertices(vertices);

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

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

auto frame_index = frame_target.getNumVertices();

frame_target.addVertices(vertices);

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

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

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

face_target.addColor(face_color);

frame_target.addColor(frame_color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250216

2025年2月15日

Ditch.

[ Video ]

[ About ]
溝。

[ 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

};

#include "ofApp.h"

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

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

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

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int span = 5;
	for (int x = -400; x <= 400; x += span) {

		for (int y = -400; y <= 400; y += span) {

			auto noise_value = ofNoise(x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.01);
			auto next_noise_value = ofNoise(x * 0.0025, y * 0.0025, (ofGetFrameNum() + 1) * 0.01);

			auto noise_param = 0.f;
			if (noise_value > 0.4 && noise_value <= 0.5) {

				noise_param = ofMap(noise_value, 0.4, 0.5, 0, 0.8);
			}
			else if (noise_value > 0.5 && noise_value < 0.6) {

				noise_param = ofMap(noise_value, 0.5, 0.6, 0.8, 0);
			}

			auto next_noise_param = 0.f;
			if (next_noise_value > 0.4 && next_noise_value <= 0.5) {

				next_noise_param = ofMap(next_noise_value, 0.4, 0.5, 0, 0.8);
			}
			else if (next_noise_value > 0.5 && next_noise_value < 0.6) {

				next_noise_param = ofMap(next_noise_value, 0.5, 0.6, 0.8, 0);
			}

			auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

			auto param_x = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.05), 0, 1, span * -3, span * 3) * noise_param;
			auto param_y = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.05), 0, 1, span * -3, span * 3) * noise_param;

			auto next_param_x = ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -3, span * 3) * next_noise_param;
			auto next_param_y = ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -3, span * 3) * next_noise_param;

			ofColor color;
			color.setHsb(ofRandom(255), 200, 255, 200);
			if (noise_param > 0) {

				ofSetColor(color);
				ofDrawCircle(x + param_x, y + param_y, span * 0.4);
			}
		}
	}

	/*
	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);
		}
	}
	*/
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int span = 5;

for (int x = -400; x <= 400; x += span) {

for (int y = -400; y <= 400; y += span) {

auto noise_value = ofNoise(x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.01);

auto next_noise_value = ofNoise(x * 0.0025, y * 0.0025, (ofGetFrameNum() + 1) * 0.01);

auto noise_param = 0.f;

if (noise_value > 0.4 && noise_value <= 0.5) {

noise_param = ofMap(noise_value, 0.4, 0.5, 0, 0.8);

}

else if (noise_value > 0.5 && noise_value < 0.6) {

noise_param = ofMap(noise_value, 0.5, 0.6, 0.8, 0);

}

auto next_noise_param = 0.f;

if (next_noise_value > 0.4 && next_noise_value <= 0.5) {

next_noise_param = ofMap(next_noise_value, 0.4, 0.5, 0, 0.8);

}

else if (next_noise_value > 0.5 && next_noise_value < 0.6) {

next_noise_param = ofMap(next_noise_value, 0.5, 0.6, 0.8, 0);

}

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

auto param_x = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.05), 0, 1, span * -3, span * 3) * noise_param;

auto param_y = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.05), 0, 1, span * -3, span * 3) * noise_param;

auto next_param_x = ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -3, span * 3) * next_noise_param;

auto next_param_y = ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -3, span * 3) * next_noise_param;

ofColor color;

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

if (noise_param > 0) {

ofSetColor(color);

ofDrawCircle(x + param_x, y + param_y, span * 0.4);

}

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);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250215

2025年2月14日

Arrow bugs.

[ Video ]

[ About ]
矢印虫。

[ 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor color);
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor color);

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(0);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int span = 20;
	for (int x = -400; x <= 400; x += span) {

		for (int y = -400; y <= 400; y += span) {

			auto noise_value = ofNoise(x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.01);
			auto next_noise_value = ofNoise(x * 0.0025, y * 0.0025, (ofGetFrameNum() + 1) * 0.01);

			auto noise_param = 0.f;
			if (noise_value > 0.4 && noise_value <= 0.5) {

				noise_param = ofMap(noise_value, 0.4, 0.5, 0, 0.8);
			}
			else if (noise_value > 0.5 && noise_value < 0.6) {

				noise_param = ofMap(noise_value, 0.5, 0.6, 0.8, 0);
			}

			auto next_noise_param = 0.f;
			if (next_noise_value > 0.4 && next_noise_value <= 0.5) {

				next_noise_param = ofMap(next_noise_value, 0.4, 0.5, 0, 0.8);
			}
			else if (next_noise_value > 0.5 && next_noise_value < 0.6) {

				next_noise_param = ofMap(next_noise_value, 0.5, 0.6, 0.8, 0);
			}

			auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

			auto param_x = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.05), 0, 1, span * -5, span * 5) * noise_param;
			auto param_y = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.05), 0, 1, span * -5, span * 5) * noise_param;

			auto next_param_x = ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -5, span * 5) * next_noise_param;
			auto next_param_y = ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -5, span * 5) * next_noise_param;

			if (noise_param > 0) {

				this->draw_arrow(glm::vec2(x + param_x, y + param_y), glm::vec2(x + next_param_x, y + next_param_y), span * 0.3, ofColor(0));
			}
			else {

				ofFill();
				ofDrawCircle(x + param_x, y + param_y, span * 0.1);
			}
		}
	}

	/*
	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);
		}
	}
	*/
}

//--------------------------------------------------------------
void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor color) {

	auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

	ofSetColor(color);
	ofFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);
	ofEndShape(true);

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

	ofSetColor(color);
	ofNoFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape();

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

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

ofSetColor(0);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int span = 20;

for (int x = -400; x <= 400; x += span) {

for (int y = -400; y <= 400; y += span) {

auto noise_value = ofNoise(x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.01);

auto next_noise_value = ofNoise(x * 0.0025, y * 0.0025, (ofGetFrameNum() + 1) * 0.01);

auto noise_param = 0.f;

if (noise_value > 0.4 && noise_value <= 0.5) {

noise_param = ofMap(noise_value, 0.4, 0.5, 0, 0.8);

}

else if (noise_value > 0.5 && noise_value < 0.6) {

noise_param = ofMap(noise_value, 0.5, 0.6, 0.8, 0);

}

auto next_noise_param = 0.f;

if (next_noise_value > 0.4 && next_noise_value <= 0.5) {

next_noise_param = ofMap(next_noise_value, 0.4, 0.5, 0, 0.8);

}

else if (next_noise_value > 0.5 && next_noise_value < 0.6) {

next_noise_param = ofMap(next_noise_value, 0.5, 0.6, 0.8, 0);

}

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

auto param_x = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.05), 0, 1, span * -5, span * 5) * noise_param;

auto param_y = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.05), 0, 1, span * -5, span * 5) * noise_param;

auto next_param_x = ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -5, span * 5) * next_noise_param;

auto next_param_y = ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -5, span * 5) * next_noise_param;

if (noise_param > 0) {

this->draw_arrow(glm::vec2(x + param_x, y + param_y), glm::vec2(x + next_param_x, y + next_param_y), span * 0.3, ofColor(0));

}

else {

ofFill();

ofDrawCircle(x + param_x, y + param_y, span * 0.1);

}

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);

}

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

void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor color) {

auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

ofSetColor(color);

ofFill();

ofBeginShape();

ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);

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

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

ofEndShape(true);

ofBeginShape();

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

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

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

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

ofEndShape(true);

ofSetColor(color);

ofNoFill();

ofBeginShape();

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

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

ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);

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

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

ofEndShape();

ofBeginShape();

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

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

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

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

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250214

2025年2月
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