ofMesh – ページ 25 – プログラミング de 落描き

2023年1月20日

telescopic rod. draw by openFrameworks

[ Video ]

[ About ]
伸縮棒。

[ 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) {};

	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

	ofEasyCam cam;
	ofMesh face_mesh, frame_mesh;

	float noise_param;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);

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

ofEasyCam cam;

ofMesh face_mesh, frame_mesh;

float noise_param;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetLineWidth(0.8);
	ofEnableDepthTest();

	this->frame_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	this->noise_param = ofRandom(1000);
}

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

	if (ofGetFrameNum() % 90 < 60) {

		this->noise_param += ofMap(ofGetFrameNum() % 90, 0, 60, 0.08, 0);
	}

	this->face_mesh.clear();
	this->frame_mesh.clear();

	auto span = 8;
	auto max_height = 150;
	auto radius = 100;
	for (auto x = -300; x <= 300; x += span) {

		for (auto y = -300; y <= 300; y += span) {

			auto distance = glm::length(glm::vec2(x, y));
			if (distance > radius - 50 && distance < radius + 50) {

				auto power = ofMap(abs(distance - radius), 0, 50, 1.3, 0.8);
				auto len = ofMap(ofNoise(x * 0.05, y * 0.05, noise_param), 0, 1, 0, pow(max_height, power));
				this->setBoxToMesh(this->face_mesh, this->frame_mesh, glm::vec3(x, y, len * 0.5), span, span, len);
			}
		}
	}
}

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

	this->cam.begin();
	//ofRotateX(285);

	this->face_mesh.drawFaces();
	this->frame_mesh.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size);
}

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

	auto face_color = ofColor(0);
	auto frame_color = ofColor(255);

	int index = face_target.getVertices().size();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

	for (int i = 0; i < 8; i++) {

		face_target.addColor(face_color);
	}

	face_target.addIndex(index + 0); face_target.addIndex(index + 1); face_target.addIndex(index + 2);
	face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 3);

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

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

	face_target.addIndex(index + 1); face_target.addIndex(index + 5); face_target.addIndex(index + 6);
	face_target.addIndex(index + 6); face_target.addIndex(index + 2); face_target.addIndex(index + 1);

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

	face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);
	face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(index + 3);

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

	for (int i = 0; i < 8; i++) {

		frame_target.addColor(frame_color);
	}

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 1);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 0);

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

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 6);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 7);
}

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(0.8);

ofEnableDepthTest();

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

this->noise_param = ofRandom(1000);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 90 < 60) {

this->noise_param += ofMap(ofGetFrameNum() % 90, 0, 60, 0.08, 0);

}

this->face_mesh.clear();

this->frame_mesh.clear();

auto span = 8;

auto max_height = 150;

auto radius = 100;

for (auto x = -300; x <= 300; x += span) {

for (auto y = -300; y <= 300; y += span) {

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

if (distance > radius - 50 && distance < radius + 50) {

auto power = ofMap(abs(distance - radius), 0, 50, 1.3, 0.8);

auto len = ofMap(ofNoise(x * 0.05, y * 0.05, noise_param), 0, 1, 0, pow(max_height, power));

this->setBoxToMesh(this->face_mesh, this->frame_mesh, glm::vec3(x, y, len * 0.5), span, span, len);

}

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

void ofApp::draw() {

this->cam.begin();

//ofRotateX(285);

this->face_mesh.drawFaces();

this->frame_mesh.drawWireframe();

this->cam.end();

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size);

}

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

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

auto face_color = ofColor(0);

auto frame_color = ofColor(255);

int index = face_target.getVertices().size();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

for (int i = 0; i < 8; i++) {

face_target.addColor(face_color);

}

face_target.addIndex(index + 0); face_target.addIndex(index + 1); face_target.addIndex(index + 2);

face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 3);

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

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

face_target.addIndex(index + 0); face_target.addIndex(index + 4); face_target.addIndex(index + 1);

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);

face_target.addIndex(index + 1); face_target.addIndex(index + 5); face_target.addIndex(index + 6);

face_target.addIndex(index + 6); face_target.addIndex(index + 2); face_target.addIndex(index + 1);

face_target.addIndex(index + 2); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

face_target.addIndex(index + 7); face_target.addIndex(index + 3); face_target.addIndex(index + 2);

face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

for (int i = 0; i < 8; i++) {

frame_target.addColor(frame_color);

}

frame_target.addIndex(index + 0); frame_target.addIndex(index + 1);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);

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

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

frame_target.addIndex(index + 5); frame_target.addIndex(index + 6);

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

frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 6);

frame_target.addIndex(index + 3); frame_target.addIndex(index + 7);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230120

2023年1月18日

Top / Bottom. Draw by openFrameworks

[ Video ]

[ About ]
上と下。

[ 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(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetColor(255);
	ofSetLineWidth(1.5);
	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);
	ofRotateY(ofGetFrameNum() * 0.66666666666);

	string word = "ABCDEFGHEJKLMNOPQRSTUVWXYZ!";
	int sample_count = 180;
	auto noise_param = ofRandom(1000);

	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();
		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 * 13.5f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
				location = glm::vec4(location, 0) * rotation_y;

				auto noise_value = ofNoise(location.x * 0.005, ofGetFrameNum() * 0.005);
				auto param_y = 0;
				if (noise_value < 0.5) {
					
					param_y = -150;
					if (noise_value > 0.4) {

						param_y = ofMap(noise_value, 0.4, 0.5, -150, 0);
					}
				}
				else
				{
					param_y = 150;
					if (noise_value < 0.6) {
					
						param_y = ofMap(noise_value, 0.5, 0.6, 0, 150);
					}
				}

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

		ofNoFill();

		for (int y = -150; y <= 150; y += 300) {
			
			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 * 13.5f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					location = glm::vec4(location + glm::vec3(0, y, 0), 0) * rotation_y;

					ofVertex(location);
				}
			}
			ofEndShape();
		}
	}

	this->cam.end();
}

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

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

100

101

102

103

104

105

106

107

108

109

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetColor(255);

ofSetLineWidth(1.5);

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);

ofRotateY(ofGetFrameNum() * 0.66666666666);

string word = "ABCDEFGHEJKLMNOPQRSTUVWXYZ!";

int sample_count = 180;

auto noise_param = ofRandom(1000);

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();

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 * 13.5f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

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

auto noise_value = ofNoise(location.x * 0.005, ofGetFrameNum() * 0.005);

auto param_y = 0;

if (noise_value < 0.5) {

param_y = -150;

if (noise_value > 0.4) {

param_y = ofMap(noise_value, 0.4, 0.5, -150, 0);

}

else

{

param_y = 150;

if (noise_value < 0.6) {

param_y = ofMap(noise_value, 0.5, 0.6, 0, 150);

}

location = location + glm::vec3(0, param_y, 0);

ofVertex(location);

}

ofEndShape();

ofNoFill();

for (int y = -150; y <= 150; y += 300) {

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 * 13.5f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

location = glm::vec4(location + glm::vec3(0, y, 0), 0) * rotation_y;

ofVertex(location);

}

ofEndShape();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230118

2023年1月17日2023年1月17日

Circle / Rect. Draw by openFrameworks

[ Video ]

[ About ]
円と四角。

[ 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::vec2 make_point(int len, int param);

	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::vec2 make_point(int len, int param);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(1);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	int len = 40;
	int width = len * 0.15;

	for (int x = -len * 8; x <= len * 8; x += len) {

		for (int y = -len * 8; y <= len * 8; y += len) {

			ofPushMatrix();
			ofTranslate(x, y, 0);

			ofMesh mesh, frame;
			frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
			mesh.addVertex(glm::vec3());
			for (int param = 0; param <= 100; param++) {

				float deg = param * 3.6 - 135;
				auto noise_value = ofNoise(x * 0.002 + cos(deg * DEG_TO_RAD) * 0.15, y * 0.002 + sin(deg * DEG_TO_RAD) * 0.15, ofGetFrameNum() * 0.015);

				vector<glm::vec3> vertices;
				if (noise_value > 0.5) {

					vertices.push_back(glm::vec3(this->make_point(len, param), width * 0.5));
				}
				else {

					vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), width * 0.5));
				}

				mesh.addVertices(vertices);
				frame.addVertices(vertices);

				if (param > 0) {

					mesh.addIndex(0);
					mesh.addIndex(mesh.getNumVertices() - 1);
					mesh.addIndex(mesh.getNumVertices() - 2);

					frame.addIndex(frame.getNumVertices() - 1);
					frame.addIndex(frame.getNumVertices() - 2);
				}
			}

			ofSetColor(0);
			frame.drawWireframe();

			ofSetColor(0, 168);
			mesh.draw();

			ofPopMatrix();
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

100

101

102

103

104

105

106

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetLineWidth(1);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int len = 40;

int width = len * 0.15;

for (int x = -len * 8; x <= len * 8; x += len) {

for (int y = -len * 8; y <= len * 8; y += len) {

ofPushMatrix();

ofTranslate(x, y, 0);

ofMesh mesh, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

mesh.addVertex(glm::vec3());

for (int param = 0; param <= 100; param++) {

float deg = param * 3.6 - 135;

auto noise_value = ofNoise(x * 0.002 + cos(deg * DEG_TO_RAD) * 0.15, y * 0.002 + sin(deg * DEG_TO_RAD) * 0.15, ofGetFrameNum() * 0.015);

vector<glm::vec3> vertices;

if (noise_value > 0.5) {

vertices.push_back(glm::vec3(this->make_point(len, param), width * 0.5));

}

else {

vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), width * 0.5));

}

mesh.addVertices(vertices);

frame.addVertices(vertices);

if (param > 0) {

mesh.addIndex(0);

mesh.addIndex(mesh.getNumVertices() - 1);

mesh.addIndex(mesh.getNumVertices() - 2);

frame.addIndex(frame.getNumVertices() - 1);

frame.addIndex(frame.getNumVertices() - 2);

}

ofSetColor(0);

frame.drawWireframe();

ofSetColor(0, 168);

mesh.draw();

ofPopMatrix();

}

this->cam.end();

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230117

2025年2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