プログラミング de 落描き – ページ 9 – 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6月7日

Square tube.

[ Video ]

[ About ]
四角いパイプ。

[ 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, float radius, float width, float height);

	ofEasyCam cam;
	ofMesh face, frame;

	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) {};

void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height);

ofEasyCam cam;

ofMesh face, frame;

float noise_param;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}
//--------------------------------------------------------------
void ofApp::update() {

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

		if (param < 25) {

			this->noise_param += ofMap(param, 12, 25, 0.01, 0.1);
		}
		else if (param > 25) {

			this->noise_param += ofMap(param, 25, 38, 0.1, 0.01);
		}
		else {

			this->noise_param += 0.01;
		}
	}
	else {

		this->noise_param += 0.01;
	}

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

	for (int x = -300; x <= 300; x += 60) {

		for (int y = -300; y <= 300; y += 60) {

			for (auto radius = 15; radius <= 30; radius += 15) {

				auto height = ofMap(ofNoise(x * 0.003, y * 0.003, radius * 0.03 + this->noise_param), 0, 1, 0, 500);
				this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, height * 0.5), radius, 10, height);
			}
		}
	}
}

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

	this->cam.begin();

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

	ofSetColor(255);
	this->frame.drawWireframe();

	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);
		}
	}
	*/
}

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

	int deg_span = 90;
	for (int deg = 45; deg < 45 + 360; deg += deg_span) {

		auto face_index = face_target.getNumVertices();

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

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

		for (auto& vertex : vertices) {

			vertex += location;
		}

		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);

		face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
		face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);
		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 6);
		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2);

		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);
		frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);

		frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 3);
	}
}

//--------------------------------------------------------------
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(1);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

auto param = ofGetFrameNum() % 50;

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

if (param < 25) {

this->noise_param += ofMap(param, 12, 25, 0.01, 0.1);

}

else if (param > 25) {

this->noise_param += ofMap(param, 25, 38, 0.1, 0.01);

}

else {

this->noise_param += 0.01;

}

else {

this->noise_param += 0.01;

}

this->face.clear();

this->frame.clear();

for (int x = -300; x <= 300; x += 60) {

for (int y = -300; y <= 300; y += 60) {

for (auto radius = 15; radius <= 30; radius += 15) {

auto height = ofMap(ofNoise(x * 0.003, y * 0.003, radius * 0.03 + this->noise_param), 0, 1, 0, 500);

this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, height * 0.5), radius, 10, height);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(0);

this->face.draw();

ofSetColor(255);

this->frame.drawWireframe();

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);

}

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

void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height) {

int deg_span = 90;

for (int deg = 45; deg < 45 + 360; deg += deg_span) {

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

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

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

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

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

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

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

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

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

for (auto& vertex : vertices) {

vertex += location;

}

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);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2);

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);

frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250607

2025年6月6日

Spiral staircase.

[ Video ]

[ About ]
螺旋輪。

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

	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) {};

ofEasyCam cam;

ofMesh face, line;

};

#include "ofApp.h"

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

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

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

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

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

	ofSeedRandom(39);

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

	auto deg_width = 6;
	auto deg_span = 6;
	auto height_span = 10;
	auto max_height = 2000;

	ofColor face_color, line_color;

	auto radius = 300;
	auto frame_step = 0.02;
	auto threshold = 0.2;

	for (auto deg_start = 0; deg_start < 360; deg_start += deg_width + 1) {

		ofColor color;
		color.setHsb(ofMap(deg_start, 0, 360, 0, 255), 255, 255);

		face_color = ofColor(0);
		line_color = ofColor(color);

		auto deg = deg_start;
		auto noise_seed = ofRandom(1000);

		for (auto height = 0; height < max_height; height += height_span) {

			auto prev_noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.0015, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.0015, (height - height_span) * 0.0005 + ofGetFrameNum() * frame_step);
			auto noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.0015, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.0015, height * 0.0005 + ofGetFrameNum() * frame_step);
			auto next_noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.0015, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.0015, (height + height_span) * 0.0005 + ofGetFrameNum() * frame_step);

			if (noise_value < threshold) {

				this->face.addVertex(glm::vec3(radius * cos((deg)*DEG_TO_RAD), height, radius * sin((deg)*DEG_TO_RAD)));
				this->face.addVertex(glm::vec3(radius * cos((deg + deg_width) * DEG_TO_RAD), height, radius * sin((deg + deg_width) * DEG_TO_RAD)));
				this->face.addVertex(glm::vec3(radius * cos((deg + deg_span + deg_width) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span + deg_width) * DEG_TO_RAD)));
				this->face.addVertex(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span) * DEG_TO_RAD)));

				this->line.addVertex(glm::vec3(radius * cos((deg)*DEG_TO_RAD), height, radius * sin((deg)*DEG_TO_RAD)));
				this->line.addVertex(glm::vec3(radius * cos((deg + deg_width) * DEG_TO_RAD), height, radius * sin((deg + deg_width) * DEG_TO_RAD)));
				this->line.addVertex(glm::vec3(radius * cos((deg + deg_span + deg_width) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span + deg_width) * DEG_TO_RAD)));
				this->line.addVertex(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span) * DEG_TO_RAD)));

				for (int i = 0; i < 4; i++) {

					this->face.addColor(face_color);
					this->line.addColor(line_color);
				}

				this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 3);
				this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 4);

				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 4);
				this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 3);

				if (height >= max_height - height_span || next_noise_value > threshold) {

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

				if (height < height_span || prev_noise_value > threshold) {

					this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 4);
				}
			}

			deg += deg_span;
		}

	}
}

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

	this->cam.begin();

	ofRotateX(180);
	ofTranslate(0, -1000, 0);

	this->face.drawFaces();
	this->line.drawWireframe();

	this->cam.end();

	/*
	int start = 220;
	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);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

auto deg_width = 6;

auto deg_span = 6;

auto height_span = 10;

auto max_height = 2000;

ofColor face_color, line_color;

auto radius = 300;

auto frame_step = 0.02;

auto threshold = 0.2;

for (auto deg_start = 0; deg_start < 360; deg_start += deg_width + 1) {

ofColor color;

color.setHsb(ofMap(deg_start, 0, 360, 0, 255), 255, 255);

face_color = ofColor(0);

line_color = ofColor(color);

auto deg = deg_start;

auto noise_seed = ofRandom(1000);

for (auto height = 0; height < max_height; height += height_span) {

auto prev_noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.0015, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.0015, (height - height_span) * 0.0005 + ofGetFrameNum() * frame_step);

auto noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.0015, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.0015, height * 0.0005 + ofGetFrameNum() * frame_step);

auto next_noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.0015, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.0015, (height + height_span) * 0.0005 + ofGetFrameNum() * frame_step);

if (noise_value < threshold) {

this->face.addVertex(glm::vec3(radius * cos((deg)*DEG_TO_RAD), height, radius * sin((deg)*DEG_TO_RAD)));

this->face.addVertex(glm::vec3(radius * cos((deg + deg_width) * DEG_TO_RAD), height, radius * sin((deg + deg_width) * DEG_TO_RAD)));

this->face.addVertex(glm::vec3(radius * cos((deg + deg_span + deg_width) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span + deg_width) * DEG_TO_RAD)));

this->face.addVertex(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span) * DEG_TO_RAD)));

this->line.addVertex(glm::vec3(radius * cos((deg)*DEG_TO_RAD), height, radius * sin((deg)*DEG_TO_RAD)));

this->line.addVertex(glm::vec3(radius * cos((deg + deg_width) * DEG_TO_RAD), height, radius * sin((deg + deg_width) * DEG_TO_RAD)));

this->line.addVertex(glm::vec3(radius * cos((deg + deg_span + deg_width) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span + deg_width) * DEG_TO_RAD)));

this->line.addVertex(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span) * DEG_TO_RAD)));

for (int i = 0; i < 4; i++) {

this->face.addColor(face_color);

this->line.addColor(line_color);

}

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 3);

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 4);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 4);

this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 3);

if (height >= max_height - height_span || next_noise_value > threshold) {

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

}

if (height < height_span || prev_noise_value > threshold) {

this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 4);

}

deg += deg_span;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofTranslate(0, -1000, 0);

this->face.drawFaces();

this->line.drawWireframe();

this->cam.end();

int start = 220;

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/Insta20250606

2025年6月5日

Colors tornado.

[ Video ]

[ About ]
色の竜巻。

[ 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, 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) {};

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() {

	ofSeedRandom(39);

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

	auto radius = 00;
	auto deg_width = 3;
	auto deg_span = 6;
	auto height_span = 10;
	auto max_height = 1000;

	ofColor face_color, line_color;

	for (radius = 100; radius <= 300; radius += 25) {

		ofColor color;
		color.setHsb(ofMap(radius, 100, 300, 0, 255), 130, 255);

		face_color = ofColor(color);
		line_color = ofColor(0);

		auto frame_step = 0.03;
		auto threshold = 0.25;

		for (auto deg_start = 0; deg_start < 360; deg_start += deg_width + 1) {

			auto deg = deg_start;
			auto noise_seed = ofRandom(1000);

			for (auto height = 0; height < max_height; height += height_span) {

				auto prev_noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.005, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.005, (height - height_span) * 0.002 + ofGetFrameNum() * frame_step);
				auto noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.005, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.005, height * 0.002 + ofGetFrameNum() * frame_step);
				auto next_noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.005, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.005, (height + height_span) * 0.002 + ofGetFrameNum() * frame_step);

				if (noise_value < threshold) {

					this->face.addVertex(glm::vec3(radius * cos((deg)*DEG_TO_RAD), height, radius * sin((deg)*DEG_TO_RAD)));
					this->face.addVertex(glm::vec3(radius * cos((deg + deg_width) * DEG_TO_RAD), height, radius * sin((deg + deg_width) * DEG_TO_RAD)));
					this->face.addVertex(glm::vec3(radius * cos((deg + deg_span + deg_width) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span + deg_width) * DEG_TO_RAD)));
					this->face.addVertex(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span) * DEG_TO_RAD)));

					this->line.addVertex(glm::vec3(radius * cos((deg)*DEG_TO_RAD), height, radius * sin((deg)*DEG_TO_RAD)));
					this->line.addVertex(glm::vec3(radius * cos((deg + deg_width) * DEG_TO_RAD), height, radius * sin((deg + deg_width) * DEG_TO_RAD)));
					this->line.addVertex(glm::vec3(radius * cos((deg + deg_span + deg_width) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span + deg_width) * DEG_TO_RAD)));
					this->line.addVertex(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), height + height_span, radius * sin((deg + deg_span) * DEG_TO_RAD)));

					for (int i = 0; i < 4; i++) {

						this->face.addColor(face_color);
						this->line.addColor(line_color);
					}

					this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 3);
					this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 4);

					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 4);
					this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 3);

					if (height >= max_height - height_span || next_noise_value > threshold) {

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

					if (height < height_span || prev_noise_value > threshold) {

						this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 4);
					}
				}

				deg += deg_span;
			}
		}
	}
}

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

	this->cam.begin();

	ofRotateX(180);
	ofTranslate(0, -500, 0);

	this->face.drawFaces();
	this->line.drawWireframe();

	this->cam.end();

	/*
	int start = 220;
	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);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

auto radius = 00;

auto deg_width = 3;

auto deg_span = 6;

auto height_span = 10;

auto max_height = 1000;

ofColor face_color, line_color;

for (radius = 100; radius <= 300; radius += 25) {

ofColor color;

color.setHsb(ofMap(radius, 100, 300, 0, 255), 130, 255);

face_color = ofColor(color);

line_color = ofColor(0);

auto frame_step = 0.03;

auto threshold = 0.25;

for (auto deg_start = 0; deg_start < 360; deg_start += deg_width + 1) {

auto deg = deg_start;

auto noise_seed = ofRandom(1000);

for (auto height = 0; height < max_height; height += height_span) {

auto prev_noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.005, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.005, (height - height_span) * 0.002 + ofGetFrameNum() * frame_step);

auto noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.005, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.005, height * 0.002 + ofGetFrameNum() * frame_step);

auto next_noise_value = ofNoise(noise_seed * cos(deg_start * DEG_TO_RAD) * 0.005, noise_seed * sin(deg_start * DEG_TO_RAD) * 0.005, (height + height_span) * 0.002 + ofGetFrameNum() * frame_step);