openFrameworks – ページ 332 – プログラミング de 落描き

2022年6月7日

2000 Days. Draw by openFrameworks

[ Video ]

[ About ]
2000日達成！

2000 Days.

[ 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;

	ofTrueTypeFont font;
	int font_size;
	string word;

	vector<glm::vec2> noise_seed_list;
	vector<glm::vec2> location_list;
	vector<ofColor> color_list;
	vector<glm::vec2> velocity_list;
	vector<int> word_index_list;

	vector<ofColor> color_palette;
};

#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;

ofTrueTypeFont font;

int font_size;

string word;

vector<glm::vec2> noise_seed_list;

vector<glm::vec2> location_list;

vector<ofColor> color_list;

vector<glm::vec2> velocity_list;

vector<int> word_index_list;

vector<ofColor> color_palette;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

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

		this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));
	}

	this->font_size = 35;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
	this->word = "2000Days";
}

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

	int index = 0;
	auto radius = 200;
	ofColor color;
	for (auto& noise_seed : this->noise_seed_list) {

		auto deg = ofGetFrameNum() * 3 + index * 90;
		auto next_deg = deg + 3;

		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));
	
		auto distance = location - next;
		distance *= 1;

		for (int i = 0; i < 2; i++) {

			auto future = location + distance * 8;
			auto random_deg = ofRandom(360);
			future += glm::vec2(15 * cos(random_deg * DEG_TO_RAD), 15 * sin(random_deg * DEG_TO_RAD));
			auto future_distance = future - location;

			this->location_list.push_back(location);
			this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));
			color.setHsb(ofRandom(255), 255, 200);
			this->color_list.push_back(color);
			this->word_index_list.push_back(ofRandom(this->word.size()));
		}

		index++;
	}

	for (int i = this->location_list.size() - 1; i > -1; i--) {

		this->location_list[i] += this->velocity_list[i];
		this->velocity_list[i] *= 1.01;

		if (glm::distance(glm::vec2(), this->location_list[i]) > 1000) {

			this->location_list.erase(this->location_list.begin() + i);
			this->velocity_list.erase(this->velocity_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
			this->word_index_list.erase(this->word_index_list.begin() + i);
		}
	}

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		ofPushMatrix();
		ofTranslate(this->location_list[i]);

		auto angle = std::atan2(this->location_list[i].y, this->location_list[i].x);
		ofRotate(angle * RAD_TO_DEG);

		ofPath chara_path = this->font.getCharacterAsPoints(this->word[this->word_index_list[i]], true, false);
		vector<ofPolyline> outline = chara_path.getOutline();

		ofFill();
		ofSetColor(this->color_list[i], 128);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

			if (outline_index != 0) { ofNextContour(true); }

			auto vertices = outline[outline_index].getResampledByCount(100).getVertices();
			for (auto& vertex : vertices) {

				auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 0);
				ofVertex(location);
			}
		}
		ofEndShape(true);

		ofNoFill();
		ofSetColor(this->color_list[i]);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

			if (outline_index != 0) { ofNextContour(true); }

			auto vertices = outline[outline_index].getResampledByCount(100).getVertices();
			for (auto& vertex : vertices) {

				auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 0);
				ofVertex(location);
			}
		}
		ofEndShape(true);

		ofPopMatrix();
	}

	ofSetColor(0);
	this->font.drawString(this->word, this->font.stringWidth(this->word) * -0.5, this->font.stringHeight(this->word) * 0.25);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetLineWidth(2);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

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

this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));

}

this->font_size = 35;

this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);

this->word = "2000Days";

}

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

void ofApp::update() {

int index = 0;

auto radius = 200;

ofColor color;

for (auto& noise_seed : this->noise_seed_list) {

auto deg = ofGetFrameNum() * 3 + index * 90;

auto next_deg = deg + 3;

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

auto distance = location - next;

distance *= 1;

for (int i = 0; i < 2; i++) {

auto future = location + distance * 8;

auto random_deg = ofRandom(360);

future += glm::vec2(15 * cos(random_deg * DEG_TO_RAD), 15 * sin(random_deg * DEG_TO_RAD));

auto future_distance = future - location;

this->location_list.push_back(location);

this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));

color.setHsb(ofRandom(255), 255, 200);

this->color_list.push_back(color);

this->word_index_list.push_back(ofRandom(this->word.size()));

}

index++;

}

for (int i = this->location_list.size() - 1; i > -1; i--) {

this->location_list[i] += this->velocity_list[i];

this->velocity_list[i] *= 1.01;

if (glm::distance(glm::vec2(), this->location_list[i]) > 1000) {

this->location_list.erase(this->location_list.begin() + i);

this->velocity_list.erase(this->velocity_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

this->word_index_list.erase(this->word_index_list.begin() + i);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int index = 0;

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

ofPushMatrix();

ofTranslate(this->location_list[i]);

auto angle = std::atan2(this->location_list[i].y, this->location_list[i].x);

ofRotate(angle * RAD_TO_DEG);

ofPath chara_path = this->font.getCharacterAsPoints(this->word[this->word_index_list[i]], true, false);

vector<ofPolyline> outline = chara_path.getOutline();

ofFill();

ofSetColor(this->color_list[i], 128);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(100).getVertices();

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 0);

ofVertex(location);

}

ofEndShape(true);

ofNoFill();

ofSetColor(this->color_list[i]);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

if (outline_index != 0) { ofNextContour(true); }

auto vertices = outline[outline_index].getResampledByCount(100).getVertices();

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 0);

ofVertex(location);

}

ofEndShape(true);

ofPopMatrix();

}

ofSetColor(0);

this->font.drawString(this->word, this->font.stringWidth(this->word) * -0.5, this->font.stringHeight(this->word) * 0.25);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220607

2022年6月6日2022年6月6日

Radial line. Draw by openFrameworks

[ Video ]

[ About ]
放射状の線。

Radial line.

[ 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() {

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetColor(0);
	ofFill();
}

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

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int radius = 720;
	for (int deg = 0; deg < 360; deg += 2) {

		auto start = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto noise_value = ofNoise(glm::vec3(start * 0.02, ofGetFrameNum() * 0.005));
		auto end_radius = ofMap(noise_value, 0, 1, 0, radius);
		auto end = glm::vec2(end_radius * cos(deg * DEG_TO_RAD), end_radius * sin(deg * DEG_TO_RAD));

		ofDrawLine(start, end);
		ofDrawCircle(end, 3);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetColor(0);

ofFill();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int radius = 720;

for (int deg = 0; deg < 360; deg += 2) {

auto start = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

auto noise_value = ofNoise(glm::vec3(start * 0.02, ofGetFrameNum() * 0.005));

auto end_radius = ofMap(noise_value, 0, 1, 0, radius);

auto end = glm::vec2(end_radius * cos(deg * DEG_TO_RAD), end_radius * sin(deg * DEG_TO_RAD));

ofDrawLine(start, end);

ofDrawCircle(end, 3);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220606

2022年6月5日

Disjointed torus. Draw by openFrameworks

[ Video ]

[ About ]
バラバラなトーラス。

Disjointed torus.

[ 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	float R = 250;
	float r = R * 0.25;
	float u_span = 15;
	float threshold = 0.55;

	for (float r = 40; r < 90; r += 10) {

		for (float u = 0; u < 360; u += u_span) {

			for (float v = 0; v < 360; v += 1.5) {

				auto noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v) * 0.0015, ofGetFrameNum() * 0.008));

				if (noise_value < threshold) {

					continue;
				}

				auto prev_noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v - 1.5) * 0.0015, ofGetFrameNum() * 0.008));
				auto next_noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v + 1.5) * 0.0015, ofGetFrameNum() * 0.008));

				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec3(this->make_point(R, r, u - u_span * 0.5 + 1, v - 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, u + u_span * 0.5 - 1, v - 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, u + u_span * 0.5 - 1, v + 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, u - u_span * 0.5 + 1, v + 1.5)));

				vertices.push_back(glm::vec3(this->make_point(R, r - 9, u - u_span * 0.5 + 1, v - 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r - 9, u + u_span * 0.5 - 1, v - 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r - 9, u + u_span * 0.5 - 1, v + 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r - 9, u - u_span * 0.5 + 1, v + 1.5)));

				this->face.addVertices(vertices);
				this->line.addVertices(vertices);

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

					this->face.addColor(ofColor(0));
					this->line.addColor(ofColor(255));
				}

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

				this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 8);
				this->face.addIndex(this->face.getNumVertices() - 7); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 8);

				this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 5);
				this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 8);

				this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 6);
				this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 7);

				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);

				this->line.addIndex(this->line.getNumVertices() - 5); this->line.addIndex(this->line.getNumVertices() - 8);
				this->line.addIndex(this->line.getNumVertices() - 6); this->line.addIndex(this->line.getNumVertices() - 7);

				if (next_noise_value < threshold) {

					this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 5);
					this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 2);

					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addIndex(this->line.getNumVertices() - 5); this->line.addIndex(this->line.getNumVertices() - 6);

					this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 6);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 5);
				}

				if (prev_noise_value < threshold) {

					this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 7);
					this->face.addIndex(this->face.getNumVertices() - 7); this->face.addIndex(this->face.getNumVertices() - 8); this->face.addIndex(this->face.getNumVertices() - 4);

					this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 4);
					this->line.addIndex(this->line.getNumVertices() - 7); this->line.addIndex(this->line.getNumVertices() - 8);

					this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 7);
					this->line.addIndex(this->line.getNumVertices() - 4); this->line.addIndex(this->line.getNumVertices() - 8);
				}
			}
		}
	}
}

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

	this->cam.begin();

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

	this->cam.end();
}

//--------------------------------------------------------------
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(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

float R = 250;

float r = R * 0.25;

float u_span = 15;

float threshold = 0.55;

for (float r = 40; r < 90; r += 10) {

for (float u = 0; u < 360; u += u_span) {

for (float v = 0; v < 360; v += 1.5) {

auto noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v) * 0.0015, ofGetFrameNum() * 0.008));

if (noise_value < threshold) {

continue;

}

auto prev_noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v - 1.5) * 0.0015, ofGetFrameNum() * 0.008));

auto next_noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v + 1.5) * 0.0015, ofGetFrameNum() * 0.008));

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(this->make_point(R, r, u - u_span * 0.5 + 1, v - 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, u + u_span * 0.5 - 1, v - 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, u + u_span * 0.5 - 1, v + 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, u - u_span * 0.5 + 1, v + 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r - 9, u - u_span * 0.5 + 1, v - 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r - 9, u + u_span * 0.5 - 1, v - 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r - 9, u + u_span * 0.5 - 1, v + 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r - 9, u - u_span * 0.5 + 1, v + 1.5)));

this->face.addVertices(vertices);

this->line.addVertices(vertices);

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

this->face.addColor(ofColor(0));

this->line.addColor(ofColor(255));

}

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

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

this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 8);

this->face.addIndex(this->face.getNumVertices() - 7); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 8);

this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 5);

this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 8);

this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 6);

this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 7);

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);

this->line.addIndex(this->line.getNumVertices() - 5); this->line.addIndex(this->line.getNumVertices() - 8);

this->line.addIndex(this->line.getNumVertices() - 6); this->line.addIndex(this->line.getNumVertices() - 7);

if (next_noise_value < threshold) {

this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 5);

this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 2);

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

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

this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 6);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 5);

}

if (prev_noise_value < threshold) {

this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 7);

this->face.addIndex(this->face.getNumVertices() - 7); this->face.addIndex(this->face.getNumVertices() - 8); this->face.addIndex(this->face.getNumVertices() - 4);

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

this->line.addIndex(this->line.getNumVertices() - 7); this->line.addIndex(this->line.getNumVertices() - 8);

this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 7);

this->line.addIndex(this->line.getNumVertices() - 4); this->line.addIndex(this->line.getNumVertices() - 8);

}

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

void ofApp::draw() {

this->cam.begin();

this->line.drawWireframe();

this->face.draw();

this->cam.end();

}

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

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/Insta20220605

2025年2月
月	火	水	木	金	土	日
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