junkiyoshi – プログラミング de 落描き

2025年5月8日

Varying speeds.

[ Video ]

[ About ]
流れの速度が異なる。

[ 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) {};

	ofEasyCam cam;
	ofMesh face, frame;
};

#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;

};

#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() {

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

	int span = 10;
	int len = 100;

	int z = len + span * 0.5;

	float angle;
	glm::highp_mat4 rotation, twist;
	for (auto i = 0; i < 50; i++) {

		z += 5;
		ofColor face_color, line_color;
		face_color.setHsb(150, ofMap(i, 0, 50, 0, 255), 255);
		line_color.setHsb(150, 255, ofMap(i, 0, 50, 255, 0));

		for (auto x = 0; x <= len * 0.2; x += span) {

			for (auto y = 0; y <= len * 24; y += span) {

				angle = PI * 0.01 * i;
				rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));

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

				vertices.push_back(glm::vec4(x - span * 0.5, y - span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x + span * 0.5, y - span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x + span * 0.5, y + span * 0.5, z, 0) * rotation);
				vertices.push_back(glm::vec4(x - span * 0.5, y + span * 0.5, z, 0) * rotation);

				for (auto& vertex : vertices) {

					auto noise_value = ofNoise(i * 1000, vertex.y * 0.0003 + ofGetFrameNum() * ofMap(i, 0, 50, 0.01, 0.0005));
					auto twist_rad = ofMap(noise_value, 0, 1, PI * -3, PI * 3);
					twist = glm::rotate(glm::mat4(), twist_rad, glm::vec3(0, 1, 0));

					vertex = glm::vec4(vertex, 0) * twist;
				}

				this->face.addVertices(vertices);

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

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

				if (x == 0) {

					this->frame.addVertex(vertices[0]);
					this->frame.addVertex(vertices[3]);

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

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

				if (x >= len * 0.2) {

					this->frame.addVertex(vertices[1]);
					this->frame.addVertex(vertices[2]);

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

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

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

	this->cam.begin();
	ofTranslate(0, -1200, 0);
	ofRotateY(ofGetFrameNum() * 0.72);

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

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 300;
	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

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

#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() {

this->face.clear();

this->frame.clear();

int span = 10;

int len = 100;

int z = len + span * 0.5;

float angle;

glm::highp_mat4 rotation, twist;

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

z += 5;

ofColor face_color, line_color;

face_color.setHsb(150, ofMap(i, 0, 50, 0, 255), 255);

line_color.setHsb(150, 255, ofMap(i, 0, 50, 255, 0));

for (auto x = 0; x <= len * 0.2; x += span) {

for (auto y = 0; y <= len * 24; y += span) {

angle = PI * 0.01 * i;

rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec4(x - span * 0.5, y - span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x + span * 0.5, y - span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x + span * 0.5, y + span * 0.5, z, 0) * rotation);

vertices.push_back(glm::vec4(x - span * 0.5, y + span * 0.5, z, 0) * rotation);

for (auto& vertex : vertices) {

auto noise_value = ofNoise(i * 1000, vertex.y * 0.0003 + ofGetFrameNum() * ofMap(i, 0, 50, 0.01, 0.0005));

auto twist_rad = ofMap(noise_value, 0, 1, PI * -3, PI * 3);

twist = glm::rotate(glm::mat4(), twist_rad, glm::vec3(0, 1, 0));

vertex = glm::vec4(vertex, 0) * twist;

}

this->face.addVertices(vertices);

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

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

this->face.addColor(face_color);

if (x == 0) {

this->frame.addVertex(vertices[0]);

this->frame.addVertex(vertices[3]);

this->frame.addColor(line_color);

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

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

}

if (x >= len * 0.2) {

this->frame.addVertex(vertices[1]);

this->frame.addVertex(vertices[2]);

this->frame.addColor(line_color);

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofTranslate(0, -1200, 0);

ofRotateY(ofGetFrameNum() * 0.72);

this->frame.drawWireframe();

this->face.draw();

this->cam.end();

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 300;

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/Insta20250508

2025年5月7日

neon collar.

[ Video ]

[ About ]
ネオンカラー。

[ 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 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) {};

	float noise_param;
};

#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) {};

float noise_param;

};

#include "ofApp.h"

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

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

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

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

	ofSeedRandom(39);

	auto param = ofGetFrameNum() % 50;
	if (param > 12 && param < 38) {

		if (param < 25) {

			this->noise_param += ofMap(param, 12, 25, 0.0001, 0.015);
		}
		else if (param > 25) {

			this->noise_param += ofMap(param, 25, 38, 0.015, 0.0001);
		}
		else {

			this->noise_param += 0.0001;
		}
	}
	else {

		this->noise_param += 0.0001;
	}
}

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

	vector<glm::vec2> location_list;

	for (int i = 0; i < 200; i++) {

		location_list.push_back(glm::vec2(
			ofMap(ofNoise(ofRandom(1000), this->noise_param), 0, 1, -100, 820),
			ofMap(ofNoise(ofRandom(1000), this->noise_param), 0, 1, -100, 820)));
	}

	int span = 80;
	ofColor color;
	for (int i = 0; i < location_list.size(); i++) {

		float max_alpha = 0;
		color.setHsb(ofMap(i, 0, 200, 0, 255), 255, 255);
		for (int k = 0; k < location_list.size(); k++) {

			if (i == k) { continue; }

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < span) {

				vector<glm::vec2> vertices;
				auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);
				auto direction_deg = direction_rad * RAD_TO_DEG + 90;

				int radius = 3;
				for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

					vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

					vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);
				ofSetColor(color, alpha);
				ofNoFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				if (alpha > max_alpha) { max_alpha = alpha; }
			}
		}
	}

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

		float max_alpha = 0;
		color.setHsb(ofMap(i, 0, 200, 0, 255), 255, 255);
		for (int k = 0; k < location_list.size(); k++) {

			if (i == k) { continue; }

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < span) {

				vector<glm::vec2> vertices;
				auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);
				auto direction_deg = direction_rad * RAD_TO_DEG + 90;

				int radius = 1;
				for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

					vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

					vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);
				ofSetColor(255, alpha);
				ofFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				if (alpha > max_alpha) { max_alpha = alpha; }
			}
		}
	}

	/*
	int start = 300;
	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

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

auto param = ofGetFrameNum() % 50;

if (param > 12 && param < 38) {

if (param < 25) {

this->noise_param += ofMap(param, 12, 25, 0.0001, 0.015);

}

else if (param > 25) {

this->noise_param += ofMap(param, 25, 38, 0.015, 0.0001);

}

else {

this->noise_param += 0.0001;

}

else {

this->noise_param += 0.0001;

}

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

void ofApp::draw() {

vector<glm::vec2> location_list;

for (int i = 0; i < 200; i++) {

location_list.push_back(glm::vec2(

ofMap(ofNoise(ofRandom(1000), this->noise_param), 0, 1, -100, 820),

ofMap(ofNoise(ofRandom(1000), this->noise_param), 0, 1, -100, 820)));

}

int span = 80;

ofColor color;

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

float max_alpha = 0;

color.setHsb(ofMap(i, 0, 200, 0, 255), 255, 255);

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < span) {

vector<glm::vec2> vertices;

auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);

auto direction_deg = direction_rad * RAD_TO_DEG + 90;

int radius = 3;

for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);

ofSetColor(color, alpha);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (alpha > max_alpha) { max_alpha = alpha; }

}

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

float max_alpha = 0;

color.setHsb(ofMap(i, 0, 200, 0, 255), 255, 255);

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < span) {

vector<glm::vec2> vertices;

auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);

auto direction_deg = direction_rad * RAD_TO_DEG + 90;

int radius = 1;

for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);

ofSetColor(255, alpha);

ofFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (alpha > max_alpha) { max_alpha = alpha; }

}

int start = 300;

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/Insta20250507

2025年5月6日

Connective.

[ Video ]

[ About ]
接続

[ 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(239);
}

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

	ofSeedRandom(39);
}

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

	vector<glm::vec2> location_list;

	for (int i = 0; i < 150; i++) {

		location_list.push_back(glm::vec2(
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -100, 820),
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -100, 820)));
	}

	int span = 100;
	for (int i = 0; i < location_list.size(); i++) {

		float max_alpha = 0;
		for (int k = 0; k < location_list.size(); k++) {

			if (i == k) { continue; }

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < span) {

				vector<glm::vec2> vertices;
				auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);
				auto direction_deg = direction_rad * RAD_TO_DEG + 90;

				int radius = 4;
				for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

					vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

					vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);
				ofSetColor(255, 0, 0, alpha);
				ofFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				if (alpha > max_alpha) { max_alpha = alpha; }
			}
		}
	}

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

		float max_alpha = 0;
		for (int k = 0; k < location_list.size(); k++) {

			if (i == k) { continue; }

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < span) {

				vector<glm::vec2> vertices;
				auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);
				auto direction_deg = direction_rad * RAD_TO_DEG + 90;

				int radius = 2;
				for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

					vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

					vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
				}

				auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);
				ofSetColor(239, alpha);
				ofFill();
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				if (alpha > max_alpha) { max_alpha = alpha; }
			}
		}
	}

	/*
	int start = 300;
	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

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

vector<glm::vec2> location_list;

for (int i = 0; i < 150; i++) {

location_list.push_back(glm::vec2(

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -100, 820),

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -100, 820)));

}

int span = 100;

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

float max_alpha = 0;

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < span) {

vector<glm::vec2> vertices;

auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);

auto direction_deg = direction_rad * RAD_TO_DEG + 90;

int radius = 4;

for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);

ofSetColor(255, 0, 0, alpha);

ofFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (alpha > max_alpha) { max_alpha = alpha; }

}

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

float max_alpha = 0;

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < span) {

vector<glm::vec2> vertices;

auto direction_rad = std::atan2(location_list[k].y - location_list[i].y, location_list[k].x - location_list[i].x);

auto direction_deg = direction_rad * RAD_TO_DEG + 90;

int radius = 2;

for (int deg = direction_deg; deg <= direction_deg + 180; deg += 3) {

vertices.push_back(location_list[i] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

for (int deg = direction_deg + 180; deg <= direction_deg + 360; deg += 3) {

vertices.push_back(location_list[k] + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

auto alpha = distance < span * 0.6 ? 255 : ofMap(distance, span * 0.6, span * 0.85, 255, 0);

ofSetColor(239, alpha);

ofFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

if (alpha > max_alpha) { max_alpha = alpha; }

}

int start = 300;

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/Insta20250506

2025年5月
月	火	水	木	金	土	日
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31