プログラミング de 落描き – ページ 59 – クリエイティブ・コーディングによる生成物とソース

2025年1月12日

Flock of arrows.

[ Video ]

[ About ]
矢印の群れ。

[ 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 fill_color, ofColor no_fill_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 fill_color, ofColor no_fill_color);

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

	for (int k = 0; k < 80; k++) {

		auto param = glm::vec3(2, 0, 0);
		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

		auto base_location = glm::vec2(
			ofMap(ofNoise(base_noise_seed.x, (k + ofGetFrameNum()) * 0.01), 0, 1, -360, 360),
			ofMap(ofNoise(base_noise_seed.y, (k + ofGetFrameNum()) * 0.01), 0, 1, -360, 360));

		auto location = glm::vec2(
			ofMap(ofNoise(noise_seed.x, (k + ofGetFrameNum()) * 0.008), 0, 1, -50, 50),
			ofMap(ofNoise(noise_seed.y, (k + ofGetFrameNum()) * 0.008), 0, 1, -40, 40));

		auto next_base_location = glm::vec2(
			ofMap(ofNoise(base_noise_seed.x, (k + ofGetFrameNum() + 1) * 0.01), 0, 1, -360, 360),
			ofMap(ofNoise(base_noise_seed.y, (k + ofGetFrameNum() + 1) * 0.01), 0, 1, -360, 360));

		auto next = glm::vec2(
			ofMap(ofNoise(noise_seed.x, (k + ofGetFrameNum() + 1) * 0.008), 0, 1, -40, 40),
			ofMap(ofNoise(noise_seed.y, (k + ofGetFrameNum() + 1) * 0.008), 0, 1, -40, 40));

		location += base_location;
		next += next_base_location;

		if (k != 70) {

			this->draw_arrow(location, next, ofMap(k, 0, 80, 13, 20), ofColor(255, 0, 0), ofColor(0));
		}
		else {

			this->draw_arrow(location, next, ofMap(k, 0, 80, 13, 20), ofColor(0), ofColor(255, 0, 0));
		}
	}

	/*
	int start = 250 + 383 + 40;
	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 fill_color, ofColor no_fill_color) {

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

	ofSetColor(fill_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(no_fill_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(39);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

for (int k = 0; k < 80; k++) {

auto param = glm::vec3(2, 0, 0);

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

auto base_location = glm::vec2(

ofMap(ofNoise(base_noise_seed.x, (k + ofGetFrameNum()) * 0.01), 0, 1, -360, 360),

ofMap(ofNoise(base_noise_seed.y, (k + ofGetFrameNum()) * 0.01), 0, 1, -360, 360));

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x, (k + ofGetFrameNum()) * 0.008), 0, 1, -50, 50),

ofMap(ofNoise(noise_seed.y, (k + ofGetFrameNum()) * 0.008), 0, 1, -40, 40));

auto next_base_location = glm::vec2(

ofMap(ofNoise(base_noise_seed.x, (k + ofGetFrameNum() + 1) * 0.01), 0, 1, -360, 360),

ofMap(ofNoise(base_noise_seed.y, (k + ofGetFrameNum() + 1) * 0.01), 0, 1, -360, 360));

auto next = glm::vec2(

ofMap(ofNoise(noise_seed.x, (k + ofGetFrameNum() + 1) * 0.008), 0, 1, -40, 40),

ofMap(ofNoise(noise_seed.y, (k + ofGetFrameNum() + 1) * 0.008), 0, 1, -40, 40));

location += base_location;

next += next_base_location;

if (k != 70) {

this->draw_arrow(location, next, ofMap(k, 0, 80, 13, 20), ofColor(255, 0, 0), ofColor(0));

}

else {

this->draw_arrow(location, next, ofMap(k, 0, 80, 13, 20), ofColor(0), ofColor(255, 0, 0));

}

int start = 250 + 383 + 40;

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 fill_color, ofColor no_fill_color) {

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

ofSetColor(fill_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(no_fill_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/Insta20250112

2025年1月11日

Arrow pointing up, arrow pointing down.

[ Video ]

[ About ]
上を指す矢印、下を指す矢印。

[ 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 fill_color, ofColor no_fill_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 fill_color, ofColor no_fill_color);

};

#include "ofApp.h"

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

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

	ofBackground(239);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int span = 30;
	for (int x = -300; x <= 300; x += span) {

		for (int y = -300; y <= 300; y += span) {

			auto noise_value = ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.005);
			auto deg = noise_value >= 0.5 ? 90 : 270;


			if (noise_value < 0.3 || noise_value > 0.7) {

				auto target = glm::vec2(10 * cos(deg * DEG_TO_RAD), 10 * sin(deg * DEG_TO_RAD));
				this->draw_arrow(glm::vec2(x, y), glm::vec2(x, y) + target, span * 0.5, ofColor(39), ofColor(239));
			}
			else {

				ofSetColor(39);
				ofFill();
				ofDrawCircle(x, y, span * 0.1);

				ofSetColor(239);
				ofNoFill();
				ofDrawCircle(x, y, span * 0.1);
			}
		}
	}

	/*
	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);
		}
	}
	*/
}

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

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

	ofSetColor(fill_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(no_fill_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);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int span = 30;

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

for (int y = -300; y <= 300; y += span) {

auto noise_value = ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.005);

auto deg = noise_value >= 0.5 ? 90 : 270;

if (noise_value < 0.3 || noise_value > 0.7) {

auto target = glm::vec2(10 * cos(deg * DEG_TO_RAD), 10 * sin(deg * DEG_TO_RAD));

this->draw_arrow(glm::vec2(x, y), glm::vec2(x, y) + target, span * 0.5, ofColor(39), ofColor(239));

}

else {

ofSetColor(39);

ofFill();

ofDrawCircle(x, y, span * 0.1);

ofSetColor(239);

ofNoFill();

ofDrawCircle(x, y, span * 0.1);

}

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);

}

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

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

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

ofSetColor(fill_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(no_fill_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/Insta20250111

2025年1月10日

Life stream.

[ Video ]

[ About ]
ライフストリーム。

[ 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;

	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;

glm::vec3 target_location, camera_location;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();

}

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

	ofSeedRandom(39);

	this->face.clear();

	auto base_noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	this->camera_location = glm::vec3(
		ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
		ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
		ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

	this->target_location = glm::vec3(
		ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + 85) * 0.01), 0, 1, -500, 500),
		ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + 85) * 0.01), 0, 1, -500, 500),
		ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum() + 85) * 0.01), 0, 1, -500, 500));

	for (int k = 0; k < 100; k++) {

		auto param = glm::vec3(2, 0, 0);
		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		auto start_index = this->face.getNumVertices();

		ofColor color;
		for (int i = 0; i < 25; i++) {

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

			auto base_location = glm::vec3(
				ofMap(ofNoise(base_noise_seed.x, (k + i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
				ofMap(ofNoise(base_noise_seed.y, (k + i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
				ofMap(ofNoise(base_noise_seed.z, (k + i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

			auto location = glm::vec3(
				ofMap(ofNoise(noise_seed.x, (k + i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100),
				ofMap(ofNoise(noise_seed.y, (k + i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100),
				ofMap(ofNoise(noise_seed.z, (k + i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100));

			location += base_location;

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

			auto alpha = ofMap(i, 0, 25, 0, 255);
			color = ofColor(255, alpha);

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

			}
		}
	}
}

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

	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);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

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

this->camera_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

this->target_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (ofGetFrameNum() + 85) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.y, (ofGetFrameNum() + 85) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.z, (ofGetFrameNum() + 85) * 0.01), 0, 1, -500, 500));

for (int k = 0; k < 100; k++) {

auto param = glm::vec3(2, 0, 0);

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

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

ofColor color;

for (int i = 0; i < 25; i++) {

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

auto base_location = glm::vec3(

ofMap(ofNoise(base_noise_seed.x, (k + i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.y, (k + i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(base_noise_seed.z, (k + i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, (k + i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100),

ofMap(ofNoise(noise_seed.y, (k + i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100),

ofMap(ofNoise(noise_seed.z, (k + i + ofGetFrameNum()) * 0.02), 0, 1, -100, 100));

location += base_location;

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

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

auto alpha = ofMap(i, 0, 25, 0, 255);

color = ofColor(255, alpha);

this->face.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);

}

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

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();

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/Insta20250110

2025年7月
月	火	水	木	金	土	日
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