ofMesh – ページ 63 – プログラミング de 落描き

2022年6月1日

Invisible sphere. Draw by openFrameworks

[ Video ]

[ About ]
見えない球体と輪っか。

Invisible spheres and rings.

[ 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) {};

	void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, ofColor face_color, ofColor frame_color);

	ofEasyCam cam;
	ofMesh face, frame;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

void 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) {};

void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, ofColor face_color, ofColor frame_color);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableDepthTest();

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

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

}

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

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

	this->cam.begin();

	auto radius = 200;

	ofSetColor(0);
	ofDrawSphere(radius);

	for (radius = radius + 50; radius < 300; radius += 5) {

		this->setRingToMesh(this->face, this->frame, glm::vec3(), radius, radius * 0.1, ofColor(0), ofColor(255));
	}

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

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, ofColor face_color, ofColor frame_color) {

	int index = face_target.getNumVertices();

	for (int deg = 0; deg < 360; deg += 5) {

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3(radius * cos((deg + 10) * DEG_TO_RAD), radius * sin((deg + 10) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3(radius * cos((deg + 10) * DEG_TO_RAD), radius * sin((deg + 10) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * 0.5));

		for (auto& vertex : vertices) {

			auto noise_value_x = ofNoise(
				location.x, radius * 0.001 + ofGetFrameNum() * 0.003);
			auto noise_value_y = ofNoise(
				location.y, radius * 0.001 + ofGetFrameNum() * 0.003);
			auto noise_value_z = ofNoise(
				location.z, radius * 0.001 + ofGetFrameNum() * 0.003);

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(noise_value_x, 0, 1, -PI * 2.5, PI * 2.5), glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(noise_value_y, 0, 1, -PI * 2.5, PI * 2.5), glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(noise_value_z, 0, 1, -PI * 2.5, PI * 2.5), glm::vec3(0, 0, 1));

			vertex = glm::vec4(vertex, 0) * rotation_y * rotation_x + glm::vec4(location, 0);
		}

		auto face_index = face_target.getNumVertices();
		face_target.addVertices(vertices);

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

		auto frame_index = frame_target.getNumVertices();
		frame_target.addVertices(vertices);

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

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

			face_target.addColor(face_color);
			frame_target.addColor(frame_color);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->face.clear();

this->frame.clear();

this->cam.begin();

auto radius = 200;

ofSetColor(0);

ofDrawSphere(radius);

for (radius = radius + 50; radius < 300; radius += 5) {

this->setRingToMesh(this->face, this->frame, glm::vec3(), radius, radius * 0.1, ofColor(0), ofColor(255));

}

this->face.draw();

this->frame.drawWireframe();

this->cam.end();

}

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

void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, ofColor face_color, ofColor frame_color) {

int index = face_target.getNumVertices();

for (int deg = 0; deg < 360; deg += 5) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3(radius * cos((deg + 10) * DEG_TO_RAD), radius * sin((deg + 10) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3(radius * cos((deg + 10) * DEG_TO_RAD), radius * sin((deg + 10) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * 0.5));

for (auto& vertex : vertices) {

auto noise_value_x = ofNoise(

location.x, radius * 0.001 + ofGetFrameNum() * 0.003);

auto noise_value_y = ofNoise(

location.y, radius * 0.001 + ofGetFrameNum() * 0.003);

auto noise_value_z = ofNoise(

location.z, radius * 0.001 + ofGetFrameNum() * 0.003);

auto rotation_x = glm::rotate(glm::mat4(), ofMap(noise_value_x, 0, 1, -PI * 2.5, PI * 2.5), glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(noise_value_y, 0, 1, -PI * 2.5, PI * 2.5), glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(noise_value_z, 0, 1, -PI * 2.5, PI * 2.5), glm::vec3(0, 0, 1));

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

}

auto face_index = face_target.getNumVertices();

face_target.addVertices(vertices);

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

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

auto frame_index = frame_target.getNumVertices();

frame_target.addVertices(vertices);

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

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

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

face_target.addColor(face_color);

frame_target.addColor(frame_color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220601

2022年5月31日

Connected spheres. Draw by openFrameworks

[ Video ]

[ About ]
サイズの異なる球体を線でつなぐ。

Connect spheres of different sizes with lines.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

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

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

	ofEasyCam cam;

	ofMesh base_mesh, draw_mesh;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofMesh base_mesh, draw_mesh;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(250, 3);
	this->base_mesh = ico_sphere.getMesh();
	this->draw_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	this->draw_mesh.clear();
	ofRotateX(270);

	for (auto v : this->base_mesh.getVertices()) {

		auto rotation = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.001 + ofGetFrameNum() * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

		auto tmp_v = glm::normalize(v) * 150;
		tmp_v = glm::vec4(tmp_v, 0) * rotation;

		this->draw_mesh.addVertex(v);
		this->draw_mesh.addVertex(tmp_v);

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

		this->draw_mesh.addColor(ofColor(0, 0, 255));
		this->draw_mesh.addColor(ofColor(255, 0, 0));
	}
}

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

	this->cam.begin();

	int index = 0;
	for (auto& vertex : this->draw_mesh.getVertices()) {

		ofSetColor(this->draw_mesh.getColor(index++));
		ofDrawSphere(vertex, 2);
	}

	this->draw_mesh.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 3);

this->base_mesh = ico_sphere.getMesh();

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

}

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

void ofApp::update() {

this->draw_mesh.clear();

ofRotateX(270);

for (auto v : this->base_mesh.getVertices()) {

auto rotation = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.001 + ofGetFrameNum() * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto tmp_v = glm::normalize(v) * 150;

tmp_v = glm::vec4(tmp_v, 0) * rotation;

this->draw_mesh.addVertex(v);

this->draw_mesh.addVertex(tmp_v);

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

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

this->draw_mesh.addColor(ofColor(0, 0, 255));

this->draw_mesh.addColor(ofColor(255, 0, 0));

}

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

void ofApp::draw() {

this->cam.begin();

int index = 0;

for (auto& vertex : this->draw_mesh.getVertices()) {

ofSetColor(this->draw_mesh.getColor(index++));

ofDrawSphere(vertex, 2);

}

this->draw_mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220531

2022年5月27日

Trio. Draw by openFrameworks

[ Video ]

[ About ]
3色の玉。

Three-colored balls.

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	// Day 228 Zenith Blue
	vector<ofColor> color_palette;
	color_palette.push_back(ofColor(134, 179, 224));
	color_palette.push_back(ofColor(251, 218, 205));
	color_palette.push_back(ofColor(234, 96, 148));

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	int number_of_satellite = 3;
	int number_of_log = 80;
	int location_radius = 200;
	auto speed = 1.5;
	ofColor color(color_palette[0]);

	for (int param = 0; param < 360; param += 180) {

		auto base_location = glm::vec3(location_radius * cos((ofGetFrameNum() * speed + param + number_of_log) * DEG_TO_RAD), location_radius * sin((ofGetFrameNum() * speed + param + number_of_log) * DEG_TO_RAD), 0);
		auto base_radius = 60;

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

			ofSetColor(color_palette[i]);

			float noise_seed_x = ofRandom(1000);
			float noise_seed_y = ofRandom(1000);
			auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));
			location = glm::normalize(location) * base_radius * 1.5;
			vector<glm::vec3> log_list;
			for (int k = 0; k < number_of_log; k++) {

				auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() * speed + k) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));
				auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() * speed + k) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));
				auto tmp_base_location = glm::vec3(location_radius * cos((ofGetFrameNum() * speed + param + k) * DEG_TO_RAD), location_radius * sin((ofGetFrameNum() * speed + param + k) * DEG_TO_RAD), 0);
				auto log_location = tmp_base_location + glm::vec4(location, 0) * rotation_y * rotation_x;
				log_list.push_back(log_location);
			}

			auto head_size = 12;
			ofMesh mesh;
			vector<glm::vec3> right, left;
			glm::vec3 last_location;
			float last_theta;

			for (int k = 0; k < log_list.size() - 1; k++) {

				auto location = log_list[k];
				auto next = log_list[k + 1];

				auto direction = next - location;
				auto theta = atan2(direction.y, direction.x);

				right.push_back(location + glm::vec3(ofMap(k, 0, log_list.size(), 0, head_size) * cos(theta + PI * 0.5), ofMap(k, 0, log_list.size(), 0, head_size) * sin(theta + PI * 0.5), 0));
				left.push_back(location + glm::vec3(ofMap(k, 0, log_list.size(), 0, head_size) * cos(theta - PI * 0.5), ofMap(k, 0, log_list.size(), 0, head_size) * sin(theta - PI * 0.5), 0));

				last_location = location;
				last_theta = theta;
			}

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

				mesh.addVertex(left[k]);
				mesh.addVertex(right[k]);

				mesh.addColor(color_palette[i]);
				mesh.addColor(color_palette[i]);
			}

			for (int k = 0; k < mesh.getNumVertices() - 2; k += 2) {

				mesh.addIndex(k + 0); mesh.addIndex(k + 1); mesh.addIndex(k + 3);
				mesh.addIndex(k + 0); mesh.addIndex(k + 2); mesh.addIndex(k + 3);
			}

			mesh.addVertex(last_location);
			mesh.addColor(color_palette[i]);
			int index = mesh.getNumVertices();
			for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

				mesh.addVertex(last_location + glm::vec3(head_size * cos(theta), head_size * sin(theta), 0));
				mesh.addColor(ofColor(color_palette[i]));
			}

			for (int k = index; k < mesh.getNumVertices() - 1; k++) {

				mesh.addIndex(index); mesh.addIndex(k + 0); mesh.addIndex(k + 1);
			}

			mesh.draw();
		}
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

// Day 228 Zenith Blue

vector<ofColor> color_palette;

color_palette.push_back(ofColor(134, 179, 224));

color_palette.push_back(ofColor(251, 218, 205));

color_palette.push_back(ofColor(234, 96, 148));

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

int number_of_satellite = 3;

int number_of_log = 80;

int location_radius = 200;

auto speed = 1.5;

ofColor color(color_palette[0]);

for (int param = 0; param < 360; param += 180) {

auto base_location = glm::vec3(location_radius * cos((ofGetFrameNum() * speed + param + number_of_log) * DEG_TO_RAD), location_radius * sin((ofGetFrameNum() * speed + param + number_of_log) * DEG_TO_RAD), 0);

auto base_radius = 60;

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

ofSetColor(color_palette[i]);

float noise_seed_x = ofRandom(1000);

float noise_seed_y = ofRandom(1000);

auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));

location = glm::normalize(location) * base_radius * 1.5;

vector<glm::vec3> log_list;

for (int k = 0; k < number_of_log; k++) {

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() * speed + k) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() * speed + k) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));

auto tmp_base_location = glm::vec3(location_radius * cos((ofGetFrameNum() * speed + param + k) * DEG_TO_RAD), location_radius * sin((ofGetFrameNum() * speed + param + k) * DEG_TO_RAD), 0);

auto log_location = tmp_base_location + glm::vec4(location, 0) * rotation_y * rotation_x;

log_list.push_back(log_location);

}

auto head_size = 12;

ofMesh mesh;

vector<glm::vec3> right, left;

glm::vec3 last_location;

float last_theta;

for (int k = 0; k < log_list.size() - 1; k++) {

auto location = log_list[k];

auto next = log_list[k + 1];

auto direction = next - location;

auto theta = atan2(direction.y, direction.x);

right.push_back(location + glm::vec3(ofMap(k, 0, log_list.size(), 0, head_size) * cos(theta + PI * 0.5), ofMap(k, 0, log_list.size(), 0, head_size) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(k, 0, log_list.size(), 0, head_size) * cos(theta - PI * 0.5), ofMap(k, 0, log_list.size(), 0, head_size) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

}

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

mesh.addVertex(left[k]);

mesh.addVertex(right[k]);

mesh.addColor(color_palette[i]);

}

for (int k = 0; k < mesh.getNumVertices() - 2; k += 2) {

mesh.addIndex(k + 0); mesh.addIndex(k + 1); mesh.addIndex(k + 3);

mesh.addIndex(k + 0); mesh.addIndex(k + 2); mesh.addIndex(k + 3);

}

mesh.addVertex(last_location);

mesh.addColor(color_palette[i]);

int index = mesh.getNumVertices();

for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

mesh.addVertex(last_location + glm::vec3(head_size * cos(theta), head_size * sin(theta), 0));

mesh.addColor(ofColor(color_palette[i]));

}

for (int k = index; k < mesh.getNumVertices() - 1; k++) {

mesh.addIndex(index); mesh.addIndex(k + 0); mesh.addIndex(k + 1);

}

mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220527

2025年7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	31