プログラミング de 落描き – ページ 283 – クリエイティブ・コーディングによる生成物とソース

2022年1月2日2022年1月2日

Ripple on fonts. Draw by openFrameworks

[ Video ]

[ About ]
文字で波紋。

Ripples with Characters.

[ 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) {};

	int font_size;
	ofTrueTypeFont font;
	vector<string> words;

	vector<glm::vec2> location_list;
	vector<bool> param_list;
	vector<int> index_list;

	vector<pair<glm::vec2, float>> wave_list;

	ofEasyCam cam;

};

#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) {};

int font_size;

ofTrueTypeFont font;

vector<string> words;

vector<glm::vec2> location_list;

vector<bool> param_list;

vector<int> index_list;

vector<pair<glm::vec2, float>> wave_list;

ofEasyCam cam;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(255);

	this->font_size = 20;
	ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);
	this->font.load(font_settings);

	this->words = {

		"H", "A", "P", "P", "Y", 
		"N", "E", "W",
		"Y", "E", "A", "R"
	};

	for (int x = this->font_size * -15; x <= this->font_size * 15; x += this->font_size * 0.8) {

		for (int y = this->font_size * -15; y <= this->font_size * 15; y += this->font_size * 1.2) {

			this->location_list.push_back(glm::vec2(x - this->font_size * 0.2, y - this->font_size * 0.5));
			this->index_list.push_back(ofRandom(this->words.size()));
			this->param_list.push_back(true);
		}
	}


}

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

	if (ofGetFrameNum() % 15 == 0) {

		auto l = glm::vec2(ofRandom(-250, 250), ofRandom(-250, 250));
		auto f = 5;
		this->wave_list.push_back(make_pair(l, f));
	}

	for (auto& param : this->param_list) {

		param = false;
	}

	auto max_height = 150;
	for (auto& wave : this->wave_list) {

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

			auto distance = glm::distance(wave.first, this->location_list[i]);
			if (distance > wave.second - this->font_size * 1.2 && distance < wave.second + this->font_size * 1.2) {

				this->index_list[i] = (this->index_list[i] + 1) % this->words.size();
				this->param_list[i] = true;
			}
		}
		
		wave.second += 12;
	}

	for (int i = this->wave_list.size() - 1; i >= 0; i--) {

		if (this->wave_list[i].second > 650) {

			this->wave_list.erase(this->wave_list.begin() + i);
		}
	}
}

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

	this->cam.begin();

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

		if (this->param_list[i]) {

			ofSetColor(0);
		}
		else {

			ofSetColor(128);
		}

		this->font.drawString(this->words[this->index_list[i]], this->location_list[i].x, this->location_list[i].y);
	}

	this->cam.end();
}

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

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

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

this->font_size = 20;

ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);

this->font.load(font_settings);

this->words = {

"H", "A", "P", "P", "Y",

"N", "E", "W",

"Y", "E", "A", "R"

};

for (int x = this->font_size * -15; x <= this->font_size * 15; x += this->font_size * 0.8) {

for (int y = this->font_size * -15; y <= this->font_size * 15; y += this->font_size * 1.2) {

this->location_list.push_back(glm::vec2(x - this->font_size * 0.2, y - this->font_size * 0.5));

this->index_list.push_back(ofRandom(this->words.size()));

this->param_list.push_back(true);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 15 == 0) {

auto l = glm::vec2(ofRandom(-250, 250), ofRandom(-250, 250));

auto f = 5;

this->wave_list.push_back(make_pair(l, f));

}

for (auto& param : this->param_list) {

param = false;

}

auto max_height = 150;

for (auto& wave : this->wave_list) {

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

auto distance = glm::distance(wave.first, this->location_list[i]);

if (distance > wave.second - this->font_size * 1.2 && distance < wave.second + this->font_size * 1.2) {

this->index_list[i] = (this->index_list[i] + 1) % this->words.size();

this->param_list[i] = true;

}

wave.second += 12;

}

for (int i = this->wave_list.size() - 1; i >= 0; i--) {

if (this->wave_list[i].second > 650) {

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

}

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

void ofApp::draw() {

this->cam.begin();

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

if (this->param_list[i]) {

ofSetColor(0);

}

else {

ofSetColor(128);

}

this->font.drawString(this->words[this->index_list[i]], this->location_list[i].x, this->location_list[i].y);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220102

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2022年1月1日

HAPPY NEW YEAR 2022 ! Draw by openFrameworks

[ Video ]

[ About ]
2022年もよろしくお願いします。

I look forward to working with you again this year.

[ 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;

	float font_size;
	ofTrueTypeFont font;
};

#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;

float font_size;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	this->font_size = 80;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(180);

	string word = "HAPPY NEW YEAR 2022!";
	int sample_count = 180;
	auto noise_param = ofRandom(1000);
	bool flag = true;

	for (int y = -350; y <= 350; y += 350) {

		ofPushMatrix();
		ofTranslate(0, y, 0);
		if (flag = !flag) {
			
			ofRotateY(ofGetFrameNum() * 2);
		}
		else {

			ofRotateY(360 - (ofGetFrameNum() * 2) % 360);
		}

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

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

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

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

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

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);
					auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation_y;

					auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);
					float param = noise_value;
					location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

					if (location.y > 0) {

						ofVertex(location - glm::vec3(0, 100, 0));
					}
				}
			}
			ofEndShape();

			ofNoFill();
			ofSetColor(255, 0, 0);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

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

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

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);
					auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation_y;

					auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);
					float param = noise_value;
					location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

					if (location.y > 0) {

						ofVertex(location - glm::vec3(0, 100, 0));
					}
				}
			}
			ofEndShape();
		}

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

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

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

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

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

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);
					auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation_y;

					auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);
					float param = noise_value;
					location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

					if (location.y < 0) {

						ofVertex(location + glm::vec3(0, 100, 0));
					}
				}
			}
			ofEndShape();

			ofNoFill();
			ofSetColor(255, 0, 0);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

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

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

					auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);
					auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location, 0) * rotation_y;

					auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);
					float param = noise_value;
					location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

					if (location.y < 0) {

						ofVertex(location + glm::vec3(0, 100, 0));
					}
				}
			}
			ofEndShape();
		}

		ofPopMatrix();
	}

	this->cam.end();
}

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

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

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetLineWidth(2);

ofEnableDepthTest();

this->font_size = 80;

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

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

string word = "HAPPY NEW YEAR 2022!";

int sample_count = 180;

auto noise_param = ofRandom(1000);

bool flag = true;

for (int y = -350; y <= 350; y += 350) {

ofPushMatrix();

ofTranslate(0, y, 0);

if (flag = !flag) {

ofRotateY(ofGetFrameNum() * 2);

}

else {

ofRotateY(360 - (ofGetFrameNum() * 2) % 360);

}

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

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

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

ofFill();

ofSetColor(0);

ofBeginShape();

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

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

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

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);

auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);

float param = noise_value;

location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

if (location.y > 0) {

ofVertex(location - glm::vec3(0, 100, 0));

}

ofEndShape();

ofNoFill();

ofSetColor(255, 0, 0);

ofBeginShape();

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

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

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

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);

auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);

float param = noise_value;

location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

if (location.y > 0) {

ofVertex(location - glm::vec3(0, 100, 0));

}

ofEndShape();

}

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

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

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

ofFill();

ofSetColor(0);

ofBeginShape();

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

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

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

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);

auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);

float param = noise_value;

location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

if (location.y < 0) {

ofVertex(location + glm::vec3(0, 100, 0));

}

ofEndShape();

ofNoFill();

ofSetColor(255, 0, 0);

ofBeginShape();

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

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

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

for (auto& vertex : vertices) {

auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * -0.5, 320);

auto rotation_y = glm::rotate(glm::mat4(), (i * 18.f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

auto noise_value = ofNoise(noise_param, cos(i * 18.f * DEG_TO_RAD), sin(i * 18.f * DEG_TO_RAD), ofGetFrameNum() * 0.06);

float param = noise_value;

location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0);

if (location.y < 0) {

ofVertex(location + glm::vec3(0, 100, 0));

}

ofEndShape();

}

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220101

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年12月31日2021年12月31日

10 PRINT on Torus. Draw by openFrameworks

[ Video ]

[ About ]
2021年もお世話になりました。

Thank you for 2021.

[ 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;
};

#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;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(255);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(90);
	ofRotateZ(ofGetFrameNum() * 0.666666666666666);

	int v_span = 3;
	int u_span = 15;
	int R = 330;
	int r = 60;

	ofMesh face, line;
	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	float noise_seed = ofRandom(1000);
	auto color_flag = true;
	for (int v = 0; v <= 360 * 6; v += v_span) {

		bool flag = true;
		auto z = glm::vec3(0, 0, ofMap(v, 0, 360 * 6, -360 * 3, 360 * 3));
		auto next_z = glm::vec3(0, 0, ofMap(v + v_span, 0, 360 * 6, -360 * 3, 360 * 3));
		int u_start = ofMap(ofNoise(noise_seed, z.z * 0.005, ofGetFrameNum() * 0.0015), 0, 1, -360 * 3, 360 * 3);
		u_start = z.z;
		int next_u = ofMap(ofNoise(noise_seed, next_z.z * 0.005, ofGetFrameNum() * 0.0015), 0, 1, -360 * 3, 360 * 3);
		next_u = next_z.z;
		for (int u = u_start; u < u_start + 360; u += u_span) {

			face.addVertex(this->make_point(R, r * 0.98, u, v) + z);
			face.addVertex(this->make_point(R, r * 0.98, u + u_span, v) + z);
			face.addVertex(this->make_point(R, r * 0.98, next_u + u_span, v + v_span) + next_z);
			face.addVertex(this->make_point(R, r * 0.98, next_u, v + v_span) + next_z);

			line.addVertex(this->make_point(R, r, u, v) + z);
			line.addVertex(this->make_point(R, r, u + u_span, v) + z);
			line.addVertex(this->make_point(R, r, next_u + u_span, v + v_span) + next_z);
			line.addVertex(this->make_point(R, r, next_u, v + v_span) + next_z);

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

			color_flag = !color_flag;

			face.addColor(face_color);
			face.addColor(face_color);
			face.addColor(face_color);
			face.addColor(face_color);

			line.addColor(line_color);
			line.addColor(line_color);
			line.addColor(line_color);
			line.addColor(line_color);

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

			if (ofRandom(1) < 0.5) {

				line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3);
			}
			else {

				line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 4);
			}

			next_u += u_span;
		}
	}

	face.drawFaces();
	line.drawWireframe();

	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());
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

ofRotateZ(ofGetFrameNum() * 0.666666666666666);

int v_span = 3;

int u_span = 15;

int R = 330;

int r = 60;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

float noise_seed = ofRandom(1000);

auto color_flag = true;

for (int v = 0; v <= 360 * 6; v += v_span) {

bool flag = true;

auto z = glm::vec3(0, 0, ofMap(v, 0, 360 * 6, -360 * 3, 360 * 3));

auto next_z = glm::vec3(0, 0, ofMap(v + v_span, 0, 360 * 6, -360 * 3, 360 * 3));

int u_start = ofMap(ofNoise(noise_seed, z.z * 0.005, ofGetFrameNum() * 0.0015), 0, 1, -360 * 3, 360 * 3);

u_start = z.z;

int next_u = ofMap(ofNoise(noise_seed, next_z.z * 0.005, ofGetFrameNum() * 0.0015), 0, 1, -360 * 3, 360 * 3);

next_u = next_z.z;

for (int u = u_start; u < u_start + 360; u += u_span) {

face.addVertex(this->make_point(R, r * 0.98, u, v) + z);

face.addVertex(this->make_point(R, r * 0.98, u + u_span, v) + z);

face.addVertex(this->make_point(R, r * 0.98, next_u + u_span, v + v_span) + next_z);

face.addVertex(this->make_point(R, r * 0.98, next_u, v + v_span) + next_z);

line.addVertex(this->make_point(R, r, u, v) + z);

line.addVertex(this->make_point(R, r, u + u_span, v) + z);

line.addVertex(this->make_point(R, r, next_u + u_span, v + v_span) + next_z);

line.addVertex(this->make_point(R, r, next_u, v + v_span) + next_z);

ofColor face_color = ofColor(255);

ofColor line_color = ofColor(0);

color_flag = !color_flag;

face.addColor(face_color);

line.addColor(line_color);

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

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

if (ofRandom(1) < 0.5) {

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3);

}

else {

line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 4);

}

next_u += u_span;

}

face.drawFaces();

line.drawWireframe();

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/Insta20211231

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2024年4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