プログラミング de 落描き – 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11月16日

Precipice.

[ Video ]

[ About ]
断崖絶壁.

[ 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;
	vector<ofMeshFace> triangle_list;
	ofMesh mesh, 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;

vector<ofMeshFace> triangle_list;

ofMesh mesh, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(0.5);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(250, 4);
	this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

	this->frame.setMode(OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

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

	auto radius = 250;

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

		glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;
		avg = glm::normalize(avg) * radius;
		auto noise_value = ofNoise(avg.x * 0.006, avg.y * 0.006, avg.z * 0.006, ofGetFrameNum() * 0.002);
		auto height = 0;

		if (noise_value > 0.47 && noise_value < 0.53) {

			height = 550;
		}
		else  if (noise_value > 0.45 && noise_value < 0.47) {

			height = ofMap(noise_value, 0.45, 0.47, 0, 550);
		}
		else if (noise_value > 0.53 && noise_value < 0.55) {

			height = ofMap(noise_value, 0.53, 0.55, 550, 0);
		}

		vector<glm::vec3> vertices;

		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * radius - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * radius - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * radius - avg);

		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius + height) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius + height) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius + height) - avg);

		for (auto& vertex : vertices) {

			vertex *= 0.8;
			vertex += avg;
		}

		this->mesh.addVertices(vertices);
		this->frame.addVertices(vertices);

		ofColor mesh_color = ofColor(0);
		ofColor frame_color = ofColor(255);

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

			this->mesh.addColor(mesh_color);
			this->frame.addColor(frame_color);
		}

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 4, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 6);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 5);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 4);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 4);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 5);

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

		this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 5);
		this->frame.addIndex(this->frame.getNumVertices() - 5); this->frame.addIndex(this->frame.getNumVertices() - 6);
		this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 6);

		this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);
		this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 5);
		this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 6);
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.72);
	ofRotateX(ofGetFrameNum() * 1.44);

	this->mesh.drawFaces();
	this->frame.drawWireframe();

	this->cam.end(); 

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 150;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::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(0.5);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 4);

this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

this->frame.setMode(OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

this->frame.clear();

auto radius = 250;

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

glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;

avg = glm::normalize(avg) * radius;

auto noise_value = ofNoise(avg.x * 0.006, avg.y * 0.006, avg.z * 0.006, ofGetFrameNum() * 0.002);

auto height = 0;

if (noise_value > 0.47 && noise_value < 0.53) {

height = 550;

}

else if (noise_value > 0.45 && noise_value < 0.47) {

height = ofMap(noise_value, 0.45, 0.47, 0, 550);

}

else if (noise_value > 0.53 && noise_value < 0.55) {

height = ofMap(noise_value, 0.53, 0.55, 550, 0);

}

vector<glm::vec3> vertices;

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * radius - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * radius - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * radius - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius + height) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius + height) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius + height) - avg);

for (auto& vertex : vertices) {

vertex *= 0.8;

vertex += avg;

}

this->mesh.addVertices(vertices);

this->frame.addVertices(vertices);

ofColor mesh_color = ofColor(0);

ofColor frame_color = ofColor(255);

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

this->mesh.addColor(mesh_color);

this->frame.addColor(frame_color);

}

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3);

this->mesh.addTriangle(this->mesh.getNumVertices() - 4, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 5);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 4);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 4);

this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 5);

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

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

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 3);

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 5); this->frame.addIndex(this->frame.getNumVertices() - 6);

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 6);

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

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 6);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.72);

ofRotateX(ofGetFrameNum() * 1.44);

this->mesh.drawFaces();

this->frame.drawWireframe();

this->cam.end();

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

int start = 150;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::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/DoodleDeProgramming/tree/af4048be1e4e7f19b0f62afcb29957b7dac3a379

2025年11月15日

Hole on sphere.

[ Video ]

[ About ]
球の穴

[ 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);
	ofEnableDepthTest();

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

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

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

	float phi_deg_step = 0.5;
	float theta_deg_step = 0.5;

	float noise_scale = 2;
	float noise_threshold_start = 0.45;
	float noise_threshold_end = 0.55;

	ofColor line_color = ofColor(255);
	ofColor face_color = ofColor(0);

	for (float radius = 230; radius > 180; radius -= 5) {

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

			for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) {

				auto noise_value = ofNoise(
					noise_scale * cos(phi_deg * DEG_TO_RAD),
					noise_scale * sin(phi_deg * DEG_TO_RAD),
					noise_scale * cos(theta_deg * DEG_TO_RAD),
					radius * 0.01 + ofGetFrameNum() * 0.05);

				if (noise_threshold_start > noise_value || noise_value > noise_threshold_end) { continue; }

				auto noise_value_1 = ofNoise(
					noise_scale * cos(phi_deg * DEG_TO_RAD),
					noise_scale * sin(phi_deg * DEG_TO_RAD),
					noise_scale * cos((theta_deg - theta_deg_step) * DEG_TO_RAD),
					radius * 0.01 + ofGetFrameNum() * 0.05);
				auto noise_value_2 = ofNoise(
					noise_scale * cos((phi_deg + phi_deg_step) * DEG_TO_RAD),
					noise_scale * sin((phi_deg + phi_deg_step) * DEG_TO_RAD),
					noise_scale * cos(theta_deg * DEG_TO_RAD),
					radius * 0.01 + ofGetFrameNum() * 0.05);
				auto noise_value_3 = ofNoise(
					noise_scale * cos((phi_deg - phi_deg_step) * DEG_TO_RAD),
					noise_scale * sin((phi_deg - phi_deg_step) * DEG_TO_RAD),
					noise_scale * cos(theta_deg * DEG_TO_RAD),
					radius * 0.01 + ofGetFrameNum() * 0.05);
				auto noise_value_4 = ofNoise(
					noise_scale * cos(phi_deg * DEG_TO_RAD),
					noise_scale * sin(phi_deg * DEG_TO_RAD),
					noise_scale * cos((theta_deg + theta_deg_step) * DEG_TO_RAD),
					radius * 0.01 + ofGetFrameNum() * 0.05);

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

				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

				this->face.addVertices(vertices);

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

				if (noise_threshold_start > noise_value_1 || noise_value_1 > noise_threshold_end) {

					this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addColor(line_color); this->line.addColor(line_color);
				}

				if (noise_threshold_start > noise_value_2 || noise_value_2 > noise_threshold_end) {

					this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addColor(line_color); this->line.addColor(line_color);
				}

				if (noise_threshold_start > noise_value_3 || noise_value_3 > noise_threshold_end) {

					this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addColor(line_color); this->line.addColor(line_color);
				}

				if (noise_threshold_start > noise_value_4 || noise_value_4 > noise_threshold_end) {

					this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addColor(line_color); this->line.addColor(line_color);
				}

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

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

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

	this->cam.begin();
	ofRotateX(270);

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

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 2;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::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);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

float phi_deg_step = 0.5;

float theta_deg_step = 0.5;

float noise_scale = 2;

float noise_threshold_start = 0.45;

float noise_threshold_end = 0.55;

ofColor line_color = ofColor(255);

ofColor face_color = ofColor(0);

for (float radius = 230; radius > 180; radius -= 5) {

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

for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(

noise_scale * cos(phi_deg * DEG_TO_RAD),

noise_scale * sin(phi_deg * DEG_TO_RAD),

noise_scale * cos(theta_deg * DEG_TO_RAD),

radius * 0.01 + ofGetFrameNum() * 0.05);

if (noise_threshold_start > noise_value || noise_value > noise_threshold_end) { continue; }

auto noise_value_1 = ofNoise(

noise_scale * cos(phi_deg * DEG_TO_RAD),

noise_scale * sin(phi_deg * DEG_TO_RAD),

noise_scale * cos((theta_deg - theta_deg_step) * DEG_TO_RAD),

radius * 0.01 + ofGetFrameNum() * 0.05);

auto noise_value_2 = ofNoise(

noise_scale * cos((phi_deg + phi_deg_step) * DEG_TO_RAD),

noise_scale * sin((phi_deg + phi_deg_step) * DEG_TO_RAD),

noise_scale * cos(theta_deg * DEG_TO_RAD),

radius * 0.01 + ofGetFrameNum() * 0.05);

auto noise_value_3 = ofNoise(

noise_scale * cos((phi_deg - phi_deg_step) * DEG_TO_RAD),

noise_scale * sin((phi_deg - phi_deg_step) * DEG_TO_RAD),

noise_scale * cos(theta_deg * DEG_TO_RAD),

radius * 0.01 + ofGetFrameNum() * 0.05);

auto noise_value_4 = ofNoise(

noise_scale * cos(phi_deg * DEG_TO_RAD),

noise_scale * sin(phi_deg * DEG_TO_RAD),

noise_scale * cos((theta_deg + theta_deg_step) * DEG_TO_RAD),

radius * 0.01 + ofGetFrameNum() * 0.05);

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

this->face.addVertices(vertices);

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

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

if (noise_threshold_start > noise_value_1 || noise_value_1 > noise_threshold_end) {

this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]);

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

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

}

if (noise_threshold_start > noise_value_2 || noise_value_2 > noise_threshold_end) {

this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]);

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

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

}

if (noise_threshold_start > noise_value_3 || noise_value_3 > noise_threshold_end) {

this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]);

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

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

}

if (noise_threshold_start > noise_value_4 || noise_value_4 > noise_threshold_end) {

this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);

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

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

}

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

this->face.addColor(face_color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

this->face.draw();

this->line.draw();

this->cam.end();

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

int start = 2;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::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/DoodleDeProgramming/tree/9b87932ab2f54ee4d095fade90160f926a2bf3e4

2025年11月14日

Cracked sphere.

[ Video ]

[ About ]
割れた球体。

[ 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);
	ofEnableDepthTest();

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

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

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

	float phi_deg_step = 2.5;
	float theta_deg_step = 2.5;

	float noise_scale = 2;
	float noise_threshold_start = 0.35;
	float noise_threshold_end = 0.65;

	ofColor line_color = ofColor(255);
	ofColor face_color = ofColor(0);

	for (float radius = 230; radius > 180; radius -= 5) {

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

			for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) {

				auto noise_value = ofNoise(
					noise_scale * cos(phi_deg * DEG_TO_RAD),
					noise_scale * sin(phi_deg * DEG_TO_RAD),
					noise_scale * cos(theta_deg * DEG_TO_RAD) +
					radius * 0.001 + ofGetFrameNum() * 0.015);

				if (noise_threshold_start < noise_value && noise_value < noise_threshold_end) { continue; }

				auto noise_value_1 = ofNoise(
					noise_scale * cos(phi_deg * DEG_TO_RAD),
					noise_scale * sin(phi_deg * DEG_TO_RAD),
					noise_scale * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) +
					radius * 0.001 + ofGetFrameNum() * 0.015);
				auto noise_value_2 = ofNoise(
					noise_scale * cos((phi_deg + phi_deg_step) * DEG_TO_RAD),
					noise_scale * sin((phi_deg + phi_deg_step) * DEG_TO_RAD),
					noise_scale * cos(theta_deg * DEG_TO_RAD) +
					radius * 0.001 + ofGetFrameNum() * 0.015);
				auto noise_value_3 = ofNoise(
					noise_scale * cos((phi_deg - phi_deg_step) * DEG_TO_RAD),
					noise_scale * sin((phi_deg - phi_deg_step) * DEG_TO_RAD),
					noise_scale * cos(theta_deg * DEG_TO_RAD) +
					radius * 0.001 + ofGetFrameNum() * 0.015);
				auto noise_value_4 = ofNoise(
					noise_scale * cos(phi_deg * DEG_TO_RAD),
					noise_scale * sin(phi_deg * DEG_TO_RAD),
					noise_scale * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) +
					radius * 0.001 + ofGetFrameNum() * 0.015);

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

				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

				this->face.addVertices(vertices);

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

				if (noise_threshold_start < noise_value_1 && noise_value_1 < noise_threshold_end) {

					this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addColor(line_color); this->line.addColor(line_color);
				}

				if (noise_threshold_start < noise_value_2 && noise_value_2 < noise_threshold_end) {

					this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addColor(line_color); this->line.addColor(line_color);
				}

				if (noise_threshold_start < noise_value_3 && noise_value_3 < noise_threshold_end) {

					this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addColor(line_color); this->line.addColor(line_color);
				}

				if (noise_threshold_start < noise_value_4 && noise_value_4 < noise_threshold_end) {

					this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addColor(line_color); this->line.addColor(line_color);
				}

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

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

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum() * 0.72);

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

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 2;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::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);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

float phi_deg_step = 2.5;

float theta_deg_step = 2.5;

float noise_scale = 2;

float noise_threshold_start = 0.35;

float noise_threshold_end = 0.65;

ofColor line_color = ofColor(255);

ofColor face_color = ofColor(0);

for (float radius = 230; radius > 180; radius -= 5) {

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

for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(

noise_scale * cos(phi_deg * DEG_TO_RAD),

noise_scale * sin(phi_deg * DEG_TO_RAD),

noise_scale * cos(theta_deg * DEG_TO_RAD) +

radius * 0.001 + ofGetFrameNum() * 0.015);

if (noise_threshold_start < noise_value && noise_value < noise_threshold_end) { continue; }

auto noise_value_1 = ofNoise(

noise_scale * cos(phi_deg * DEG_TO_RAD),

noise_scale * sin(phi_deg * DEG_TO_RAD),

noise_scale * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) +

radius * 0.001 + ofGetFrameNum() * 0.015);

auto noise_value_2 = ofNoise(

noise_scale * cos((phi_deg + phi_deg_step) * DEG_TO_RAD),

noise_scale * sin((phi_deg + phi_deg_step) * DEG_TO_RAD),

noise_scale * cos(theta_deg * DEG_TO_RAD) +

radius * 0.001 + ofGetFrameNum() * 0.015);

auto noise_value_3 = ofNoise(

noise_scale * cos((phi_deg - phi_deg_step) * DEG_TO_RAD),

noise_scale * sin((phi_deg - phi_deg_step) * DEG_TO_RAD),

noise_scale * cos(theta_deg * DEG_TO_RAD) +

radius * 0.001 + ofGetFrameNum() * 0.015);

auto noise_value_4 = ofNoise(

noise_scale * cos(phi_deg * DEG_TO_RAD),

noise_scale * sin(phi_deg * DEG_TO_RAD),

noise_scale * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) +

radius * 0.001 + ofGetFrameNum() * 0.015);

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

this->face.addVertices(vertices);

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

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

if (noise_threshold_start < noise_value_1 && noise_value_1 < noise_threshold_end) {

this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]);

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

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

}

if (noise_threshold_start < noise_value_2 && noise_value_2 < noise_threshold_end) {

this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]);

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

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

}

if (noise_threshold_start < noise_value_3 && noise_value_3 < noise_threshold_end) {

this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]);

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

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

}

if (noise_threshold_start < noise_value_4 && noise_value_4 < noise_threshold_end) {

this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);

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

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

}

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

this->face.addColor(face_color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum() * 0.72);

this->face.draw();

this->line.draw();

this->cam.end();

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

int start = 2;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::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/DoodleDeProgramming/tree/aaac8ab5f6b2be70bde6ff246b7add7a442a8845

2025年11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