プログラミング de 落描き – ページ 242 – クリエイティブ・コーディングによる生成物とソース

2023年11月1日2023年11月1日

Box in the box.

[ Video ]

[ About ]
箱の中の箱。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	for (int x = -270; x <= 270; x += 60) {

		for (int y = -270; y <= 270; y += 60) {

			ofPushMatrix();
			ofTranslate(x, y);

			auto distance = glm::length(glm::vec2(x, y));

			auto x_value = ofNoise(noise_seed.x, x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.015);
			auto y_value = ofNoise(noise_seed.y, x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.015);
			auto z_value = ofNoise(noise_seed.z, x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.015);

			auto x_deg = x_value < 0.35 ? ofMap(x_value, 0, 0.35, -360, 0) : x_value > 0.75 ? ofMap(x_value, 0.75, 1, 0, 360) : 0;
			auto y_deg = y_value < 0.35 ? ofMap(y_value, 0, 0.35, -360, 0) : y_value > 0.75 ? ofMap(y_value, 0.75, 1, 0, 360) : 0;
			auto z_deg = z_value < 0.35 ? ofMap(z_value, 0, 0.35, -360, 0) : z_value > 0.75 ? ofMap(z_value, 0.75, 1, 0, 360) : 0;

			ofRotateZ(z_deg);
			ofRotateY(y_deg);
			ofRotateX(x_deg);

			ofSetColor(0);

			ofFill();
			ofDrawBox(15);

			ofNoFill();
			ofDrawBox(35);

			ofSetColor(255);

			ofDrawBox(15);

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetWindowTitle("openFrameworks");

ofSetFrameRate(25);

ofBackground(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

for (int x = -270; x <= 270; x += 60) {

for (int y = -270; y <= 270; y += 60) {

ofPushMatrix();

ofTranslate(x, y);

auto distance = glm::length(glm::vec2(x, y));

auto x_value = ofNoise(noise_seed.x, x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.015);

auto y_value = ofNoise(noise_seed.y, x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.015);

auto z_value = ofNoise(noise_seed.z, x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.015);

auto x_deg = x_value < 0.35 ? ofMap(x_value, 0, 0.35, -360, 0) : x_value > 0.75 ? ofMap(x_value, 0.75, 1, 0, 360) : 0;

auto y_deg = y_value < 0.35 ? ofMap(y_value, 0, 0.35, -360, 0) : y_value > 0.75 ? ofMap(y_value, 0.75, 1, 0, 360) : 0;

auto z_deg = z_value < 0.35 ? ofMap(z_value, 0, 0.35, -360, 0) : z_value > 0.75 ? ofMap(z_value, 0.75, 1, 0, 360) : 0;

ofRotateZ(z_deg);

ofRotateY(y_deg);

ofRotateX(x_deg);

ofSetColor(0);

ofFill();

ofDrawBox(15);

ofNoFill();

ofDrawBox(35);

ofSetColor(255);

ofDrawBox(15);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231101

2023年10月31日

Bone torus.

[ Video ]

[ About ]
骨トーラス。

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	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) {};

glm::vec3 make_point(float R, float r, float u, float v);

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();

	float phi_deg_step = 1;
	float theta_deg_step = 1;
	float threshold_1 = 0.48;
	float threshold_2 = 0.52;

	float R = 240;
	float r = R * 0.25;

	for (float r = 20; r <= R * 0.25; r += 10) {

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

			for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) {

				auto noise_value = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg, phi_deg) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));
				if (noise_value <= threshold_1 || noise_value >= threshold_2) { continue; }

				auto noise_1 = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg - theta_deg_step, phi_deg) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));
				auto noise_2 = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg, phi_deg + phi_deg_step) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));
				auto noise_3 = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg, phi_deg - phi_deg_step) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));
				auto noise_4 = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg + theta_deg_step, phi_deg) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));

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

				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

				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_1 <= threshold_1 || noise_1 >= threshold_2) {

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

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

				if (noise_2 <= threshold_1 || noise_2 >= threshold_2) {

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

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

				if (noise_3 <= threshold_1 || noise_3 >= threshold_2) {

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

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

				if (noise_4 <= threshold_1 || noise_4 >= threshold_2) {

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

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

				}
			}
		}
	}
}

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

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

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

	ofSetColor(255);
	this->face.draw();

	this->cam.end();

	/*
	int start = 0;
	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);
		}
	}
	*/
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}


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

float phi_deg_step = 1;

float theta_deg_step = 1;

float threshold_1 = 0.48;

float threshold_2 = 0.52;

float R = 240;

float r = R * 0.25;

for (float r = 20; r <= R * 0.25; r += 10) {

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

for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg, phi_deg) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));

if (noise_value <= threshold_1 || noise_value >= threshold_2) { continue; }

auto noise_1 = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg - theta_deg_step, phi_deg) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));

auto noise_2 = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg, phi_deg + phi_deg_step) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));

auto noise_3 = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg, phi_deg - phi_deg_step) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));

auto noise_4 = ofNoise(glm::vec4(this->make_point(R, 10, theta_deg + theta_deg_step, phi_deg) * 0.02, r * 0.005 + ofGetFrameNum() * 0.025));

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

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_1 <= threshold_1 || noise_1 >= threshold_2) {

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

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

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

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

}

if (noise_2 <= threshold_1 || noise_2 >= threshold_2) {

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

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

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

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

}

if (noise_3 <= threshold_1 || noise_3 >= threshold_2) {

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

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

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

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

}

if (noise_4 <= threshold_1 || noise_4 >= threshold_2) {

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

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

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 1.44);

ofSetColor(0);

this->line.draw();

ofSetColor(255);

this->face.draw();

this->cam.end();

int start = 0;

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);

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231031

2023年10月30日

Splited circle.

[ Video ]

[ About ]
分割された円。

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

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

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

};

#include "ofApp.h"

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

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

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

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

}

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

	ofPushMatrix();
	ofTranslate(ofGetWindowSize() * 0.5);
	ofRotateZ(ofGetFrameNum() * 1.44);

	auto radius = 250;
	auto deg_start = 0;
	auto deg_end = deg_start + 180;
	auto deg_span = 4;
	for (int deg = deg_start; deg < deg_end; deg += deg_span) {

		auto center = glm::vec2(radius * cos((deg + deg_span / 2) * DEG_TO_RAD), 0);
		auto noise_value = ofNoise(center.x * 0.003, ofGetFrameNum() * 0.01);
		auto rotate = noise_value < 0.5 ? 0.f : ofMap(noise_value, 0.5, 1, 0, 360);

		ofPushMatrix();
		ofTranslate(center);
		ofRotateX(rotate);

		vector<glm::vec2> vertices_1, vertices_2;
		for (int tmp_deg = deg + 1; tmp_deg < deg + deg_span; tmp_deg++) {

			auto point = glm::vec2(radius * cos(tmp_deg * DEG_TO_RAD), radius * sin(tmp_deg * DEG_TO_RAD));
			vertices_1.push_back(point - center);
			vertices_2.push_back(glm::vec2(point.x, -point.y) - center);
		}

		reverse(vertices_2.begin(), vertices_2.end());

		ofFill();
		ofSetColor(255);
		ofBeginShape();
		ofVertices(vertices_1);
		ofVertices(vertices_2);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(0);
		ofBeginShape();
		ofVertices(vertices_1);
		ofVertices(vertices_2);
		ofEndShape(true);

		ofPopMatrix();
	}

	ofPopMatrix();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofPushMatrix();

ofTranslate(ofGetWindowSize() * 0.5);

ofRotateZ(ofGetFrameNum() * 1.44);

auto radius = 250;

auto deg_start = 0;

auto deg_end = deg_start + 180;

auto deg_span = 4;

for (int deg = deg_start; deg < deg_end; deg += deg_span) {

auto center = glm::vec2(radius * cos((deg + deg_span / 2) * DEG_TO_RAD), 0);

auto noise_value = ofNoise(center.x * 0.003, ofGetFrameNum() * 0.01);

auto rotate = noise_value < 0.5 ? 0.f : ofMap(noise_value, 0.5, 1, 0, 360);

ofPushMatrix();

ofTranslate(center);

ofRotateX(rotate);

vector<glm::vec2> vertices_1, vertices_2;

for (int tmp_deg = deg + 1; tmp_deg < deg + deg_span; tmp_deg++) {

auto point = glm::vec2(radius * cos(tmp_deg * DEG_TO_RAD), radius * sin(tmp_deg * DEG_TO_RAD));

vertices_1.push_back(point - center);

vertices_2.push_back(glm::vec2(point.x, -point.y) - center);

}

reverse(vertices_2.begin(), vertices_2.end());

ofFill();

ofSetColor(255);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

ofNoFill();

ofSetColor(0);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

ofPopMatrix();

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231030

2025年10月
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