ofMesh – ページ 69 – プログラミング de 落描き

2020年6月2日

Coloring random walk on the sphere. Draw by openFrameworks

[ Video ]

[ About ]
Coloring random walk on the sphere.

[ 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;

	vector<ofMeshFace> triangle_list;
	vector<glm::vec3> location_list;

	vector<int> index_list;
	vector<ofColor> index_color_list;

	vector<int> param_list;
	vector<ofColor> param_color_list;

	vector<vector<int>> route_info_list;

	vector<ofColor> base_color_list;

	ofMesh mesh, 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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

vector<ofMeshFace> triangle_list;

vector<glm::vec3> location_list;

vector<int> index_list;

vector<ofColor> index_color_list;

vector<int> param_list;

vector<ofColor> param_color_list;

vector<vector<int>> route_info_list;

vector<ofColor> base_color_list;

ofMesh mesh, frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();
	
	ofColor color;
	vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}

	auto ico_sphere = ofIcoSpherePrimitive(250, 4);
	this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

	for (auto& triangle : this->triangle_list) {

		glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		this->location_list.push_back(avg);
		this->param_list.push_back(0);
		this->param_color_list.push_back(ofColor(239));
	}

	int span = 13;
	for (auto& location : this->location_list) {

		vector<int> route_info = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= span) {

				route_info.push_back(index);
			}
		}

		this->route_info_list.push_back(route_info);
	}

	for (int i = 0; i < 150; i++) {

		this->index_list.push_back((int)ofRandom(this->location_list.size()));
		this->index_color_list.push_back(this->base_color_list[ofRandom(this->base_color_list.size())]);
	}
}

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

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

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

		int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];
		for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

			if (this->param_list[next_index] <= 0) {

				this->param_list[next_index] = 30;
				this->param_color_list[next_index] = this->index_color_list[i];
				this->index_list[i] = next_index;
				break;
			}
		}
	}

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

		if (this->param_list[i] > 0) {

			int index = this->mesh.getNumVertices();

			this->mesh.addVertex(this->triangle_list[i].getVertex(0));
			this->mesh.addVertex(this->triangle_list[i].getVertex(1));
			this->mesh.addVertex(this->triangle_list[i].getVertex(2));

			this->frame.addVertex(this->triangle_list[i].getVertex(0));
			this->frame.addVertex(this->triangle_list[i].getVertex(1));
			this->frame.addVertex(this->triangle_list[i].getVertex(2));

			this->mesh.addColor(this->param_color_list[i]);
			this->mesh.addColor(this->param_color_list[i]);
			this->mesh.addColor(this->param_color_list[i]);

			this->frame.addColor(ofColor(39));
			this->frame.addColor(ofColor(39));
			this->frame.addColor(ofColor(39));
			
			this->mesh.addTriangle(index + 0, index + 1, index + 2);
			this->frame.addTriangle(index + 0, index + 1, index + 2);
		}

		if (this->param_list[i] > 0) { this->param_list[i] -= 1; }
	}

}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

	this->mesh.drawFaces();

	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
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(239);

ofSetLineWidth(3);

ofEnableDepthTest();

ofColor color;

vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

auto ico_sphere = ofIcoSpherePrimitive(250, 4);

this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

for (auto& triangle : this->triangle_list) {

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

this->location_list.push_back(avg);

this->param_list.push_back(0);

this->param_color_list.push_back(ofColor(239));

}

int span = 13;

for (auto& location : this->location_list) {

vector<int> route_info = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= span) {

route_info.push_back(index);

}

this->route_info_list.push_back(route_info);

}

for (int i = 0; i < 150; i++) {

this->index_list.push_back((int)ofRandom(this->location_list.size()));

this->index_color_list.push_back(this->base_color_list[ofRandom(this->base_color_list.size())]);

}

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

void ofApp::update() {

this->mesh.clear();

this->frame.clear();

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

int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];

for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

if (this->param_list[next_index] <= 0) {

this->param_list[next_index] = 30;

this->param_color_list[next_index] = this->index_color_list[i];

this->index_list[i] = next_index;

break;

}

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

if (this->param_list[i] > 0) {

int index = this->mesh.getNumVertices();

this->mesh.addVertex(this->triangle_list[i].getVertex(0));

this->mesh.addVertex(this->triangle_list[i].getVertex(1));

this->mesh.addVertex(this->triangle_list[i].getVertex(2));

this->frame.addVertex(this->triangle_list[i].getVertex(0));

this->frame.addVertex(this->triangle_list[i].getVertex(1));

this->frame.addVertex(this->triangle_list[i].getVertex(2));

this->mesh.addColor(this->param_color_list[i]);

this->frame.addColor(ofColor(39));

this->mesh.addTriangle(index + 0, index + 1, index + 2);

this->frame.addTriangle(index + 0, index + 1, index + 2);

}

if (this->param_list[i] > 0) { this->param_list[i] -= 1; }

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

this->mesh.drawFaces();

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200602

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年5月31日

Random walk on the sphere. Draw by openFrameworks

[ Video ]

[ About ]
Random walk on the sphere.

[ 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;

	vector<ofMeshFace> triangle_list;
	vector<glm::vec3> location_list;

	vector<int> index_list;
	vector<int> param_list;
	vector<vector<int>> route_info_list;

	ofMesh 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;

vector<ofMeshFace> triangle_list;

vector<glm::vec3> location_list;

vector<int> index_list;

vector<int> param_list;

vector<vector<int>> route_info_list;

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();
	
	auto ico_sphere = ofIcoSpherePrimitive(250, 4);
	this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

	for (auto& triangle : this->triangle_list) {

		glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		this->location_list.push_back(avg);
		this->param_list.push_back(0);
	}

	int span = 13;
	for (auto& location : this->location_list) {

		vector<int> route_info = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= span) {

				route_info.push_back(index);
			}
		}

		this->route_info_list.push_back(route_info);
	}

	for (int i = 0; i < 150; i++) {

		this->index_list.push_back((int)ofRandom(this->location_list.size()));
	}
}

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

	this->mesh.clear();

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

		int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];
		for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

			if (this->param_list[next_index] <= 0) {

				this->param_list[next_index] = 30;
				this->index_list[i] = next_index;
				break;
			}
		}
	}

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

		if (this->param_list[i] > 0) {

			int index = this->mesh.getNumVertices();

			this->mesh.addVertex(this->triangle_list[i].getVertex(0));
			this->mesh.addVertex(this->triangle_list[i].getVertex(1));
			this->mesh.addVertex(this->triangle_list[i].getVertex(2));

			this->mesh.addTriangle(index + 0, index + 1, index + 2);
		}

		if (this->param_list[i] > 0) { this->param_list[i] -= 1; }
	}

}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

	ofSetColor(239);
	this->mesh.drawWireframe();

	ofSetColor(39);
	this->mesh.drawFaces();

	this->cam.end();
}

//--------------------------------------------------------------
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(239);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 4);

this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

for (auto& triangle : this->triangle_list) {

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

this->location_list.push_back(avg);

this->param_list.push_back(0);

}

int span = 13;

for (auto& location : this->location_list) {

vector<int> route_info = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= span) {

route_info.push_back(index);

}

this->route_info_list.push_back(route_info);

}

for (int i = 0; i < 150; i++) {

this->index_list.push_back((int)ofRandom(this->location_list.size()));

}

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

void ofApp::update() {

this->mesh.clear();

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

int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];

for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

if (this->param_list[next_index] <= 0) {

this->param_list[next_index] = 30;

this->index_list[i] = next_index;

break;

}

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

if (this->param_list[i] > 0) {

int index = this->mesh.getNumVertices();

this->mesh.addVertex(this->triangle_list[i].getVertex(0));

this->mesh.addVertex(this->triangle_list[i].getVertex(1));

this->mesh.addVertex(this->triangle_list[i].getVertex(2));

this->mesh.addTriangle(index + 0, index + 1, index + 2);

}

if (this->param_list[i] > 0) { this->param_list[i] -= 1; }

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofSetColor(239);

this->mesh.drawWireframe();

ofSetColor(39);

this->mesh.drawFaces();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200531

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年5月30日

Waterfall Climbing in the Color Belt. Draw by openFrameworks

[ Video ]

[ About ]
Waterfall Climbing in the Color Belt.

[ 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;
	ofMesh face, frame;

	vector<float> z_list;
	vector<int> param_list;
	vector<ofColor> color_list;

	vector<ofColor> base_color_list;
};

#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;

ofMesh face, frame;

vector<float> z_list;

vector<int> param_list;

vector<ofColor> color_list;

vector<ofColor> base_color_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();
	
	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	ofColor color;
	vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}
}

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

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

	int len = 300;
	float width = 6.5;
	int param_len = 145;
	float z_span = 3;

	if (ofRandom(100) < 5) {
		
		this->z_list.push_back(len * -2);
		this->param_list.push_back(ofRandom(100, 200));
		this->color_list.push_back(this->base_color_list[ofRandom(this->base_color_list.size())]);
	}

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

		float z = this->z_list[i];
		bool has_vertex = false;
		int start_index = this->frame.getNumVertices();
		for (int param = this->param_list[i] + param_len; param > this->param_list[i]; param--) {

			auto location = glm::vec3(this->make_point(len, param), z);
			if (location.z >= len * -2 && location.z < len * 2) {

				vector<glm::vec3> vertices;

				vertices.push_back(location + glm::vec3(0, 0, -width));
				vertices.push_back(location + glm::vec3(0, 0, width));

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

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

					this->face.addColor(this->color_list[i]);
				}

				if (has_vertex) {

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

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

				has_vertex = true;
			}

			z -= z_span;
		}

		if (has_vertex) {

			this->z_list[i] += z_span;
			this->param_list[i] += 1;

			this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);
			this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 1);
		}
		else {

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

}

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

	this->cam.begin();
	ofRotateX(270);

	this->face.drawFaces();

	ofSetColor(39);
	this->frame.drawWireframe();

	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());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

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

ofColor color;

vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

int len = 300;

float width = 6.5;

int param_len = 145;

float z_span = 3;

if (ofRandom(100) < 5) {

this->z_list.push_back(len * -2);

this->param_list.push_back(ofRandom(100, 200));

this->color_list.push_back(this->base_color_list[ofRandom(this->base_color_list.size())]);

}

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

float z = this->z_list[i];

bool has_vertex = false;

int start_index = this->frame.getNumVertices();

for (int param = this->param_list[i] + param_len; param > this->param_list[i]; param--) {

auto location = glm::vec3(this->make_point(len, param), z);

if (location.z >= len * -2 && location.z < len * 2) {

vector<glm::vec3> vertices;

vertices.push_back(location + glm::vec3(0, 0, -width));

vertices.push_back(location + glm::vec3(0, 0, width));

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

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

this->face.addColor(this->color_list[i]);

}

if (has_vertex) {

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

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 2);

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 1);

}

has_vertex = true;

}

z -= z_span;

}

if (has_vertex) {

this->z_list[i] += z_span;

this->param_list[i] += 1;

this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);

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

}

else {

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

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

this->face.drawFaces();

ofSetColor(39);

this->frame.drawWireframe();

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/Insta20200530

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