noise – ページ 157 – プログラミング de 落描き

2021年9月5日

Twin color ribbon and sphere. Draw by openFrameworks

[ Video ]

[ About ]
真ん中の球体はリボンとの距離を比較して色を変える。

The sphere in the middle changes color based on its distance from the ribbon.

if (glm::distance(avg, this->red_location) > glm::distance(avg, this->blue_location)) {

	this->sphere_face.addColor(ofColor(0, 203, 255));
	this->sphere_face.addColor(ofColor(0, 203, 255));
	this->sphere_face.addColor(ofColor(0, 203, 255));
}
else{
	this->sphere_face.addColor(ofColor(255, 0, 153));
	this->sphere_face.addColor(ofColor(255, 0, 153));
	this->sphere_face.addColor(ofColor(255, 0, 153));
}

if (glm::distance(avg, this->red_location) > glm::distance(avg, this->blue_location)) {

this->sphere_face.addColor(ofColor(0, 203, 255));

}

else{

this->sphere_face.addColor(ofColor(255, 0, 153));

}

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp { 
<pre class="lang:default decode:true " title="ofApp.cpp" >#include "ofApp.h"

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

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

	ofBackground(239);
	ofNoFill();
	ofSetColor(39);
	ofEnableDepthTest();
	ofSetCircleResolution(60);
	ofSetLineWidth(2);

		auto ico_sphere = ofIcoSpherePrimitive(80, 5);
	this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

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

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

	ofSeedRandom(39);

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

	float x_span = 1;
	auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

	for (int x_param = -1; x_param <= 1; x_param += 2) {

		int start_index = this->face.getNumVertices();
		for (float x = 100; x < 250; x += x_span) {

			float next_x = x + x_span;
			int index = this->face.getNumVertices();

			float angle_x = ofMap(ofNoise(noise_seed.x, x * 0.0035 + ofGetFrameNum() * 0.0085), 0, 1, PI * -2, PI * 2);
			auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

			float angle_y = ofMap(ofNoise(noise_seed.y, x * 0.0035 + ofGetFrameNum() * 0.0085), 0, 1, PI * -2, PI * 2);
			auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

			float next_angle_x = ofMap(ofNoise(noise_seed.x, next_x * 0.0035 + ofGetFrameNum() * 0.0085), 0, 1, PI * -2, PI * 2);
			auto next_rotation_x = glm::rotate(glm::mat4(), next_angle_x, glm::vec3(1, 0, 0));

			float next_angle_y = ofMap(ofNoise(noise_seed.y, next_x * 0.0035 + ofGetFrameNum() * 0.0085), 0, 1, PI * -2, PI * 2);
			auto next_rotation_y = glm::rotate(glm::mat4(), next_angle_y, glm::vec3(0, 1, 0));

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec4(x * x_param, 20, 0, 0) * rotation_y * rotation_x);
			vertices.push_back(glm::vec4(next_x * x_param, 20, 0, 0)* next_rotation_y* next_rotation_x);
			vertices.push_back(glm::vec4(next_x * x_param, -20, 0, 0) * next_rotation_y * next_rotation_x);
			vertices.push_back(glm::vec4(x * x_param, -20, 0, 0) * rotation_y * rotation_x);


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

			this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);
			this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

			this->line.addIndex(index + 0); this->line.addIndex(index + 1);
			this->line.addIndex(index + 2); this->line.addIndex(index + 3);

			if (x_param == -1) {
				
				this->face.addColor(ofColor(255, 0, 153));
				this->face.addColor(ofColor(255, 0, 153));
				this->face.addColor(ofColor(255, 0, 153));
				this->face.addColor(ofColor(255, 0, 153));
			}else{

				this->face.addColor(ofColor(0, 203, 255));
				this->face.addColor(ofColor(0, 203, 255));
				this->face.addColor(ofColor(0, 203, 255));
				this->face.addColor(ofColor(0, 203, 255));
			}

			if (x == 100 && x_param == -1) {

				this->red_location = (vertices[0] + vertices[3]) / 2;
			}

			if (x == 100 && x_param == 1) {

				this->blue_location = (vertices[0] + vertices[3]) / 2;
			}

		}

		this->line.addIndex(start_index + 0); this->line.addIndex(start_index + 3);
		this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
	}

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

		vector<glm::vec3> vertices;

		glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;
		vertices.push_back(this->triangle_list[i].getVertex(0));
		vertices.push_back(this->triangle_list[i].getVertex(1));
		vertices.push_back(this->triangle_list[i].getVertex(2));

		this->sphere_face.addVertices(vertices);
		this->sphere_line.addVertices(vertices);

		if (glm::distance(avg, this->red_location) > glm::distance(avg, this->blue_location)) {

			this->sphere_face.addColor(ofColor(0, 203, 255));
			this->sphere_face.addColor(ofColor(0, 203, 255));
			this->sphere_face.addColor(ofColor(0, 203, 255));
		}
		else{

			this->sphere_face.addColor(ofColor(255, 0, 153));
			this->sphere_face.addColor(ofColor(255, 0, 153));
			this->sphere_face.addColor(ofColor(255, 0, 153));
		}

		this->sphere_line.addColor(ofColor(239));
		this->sphere_line.addColor(ofColor(239));
		this->sphere_line.addColor(ofColor(239));

		this->sphere_face.addTriangle(this->sphere_face.getNumVertices() - 1, this->sphere_face.getNumVertices() - 2, this->sphere_face.getNumVertices() - 3);

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

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

	this->cam.begin();

	ofDrawCircle(glm::vec3(), 81);

	ofRotateX(ofGetFrameNum() * 0.37);
	ofRotateY(ofGetFrameNum() * 0.72);

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

	this->sphere_face.draw();
	//this->sphere_line.drawWireframe();


	this->cam.end();
}

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

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

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#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

<pre class="lang:default decode:true " title="ofApp.cpp" >#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofNoFill();

ofSetColor(39);

ofEnableDepthTest();

ofSetCircleResolution(60);

ofSetLineWidth(2);

auto ico_sphere = ofIcoSpherePrimitive(80, 5);

this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

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

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

this->sphere_face.clear();

this->sphere_line.clear();

float x_span = 1;

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

for (int x_param = -1; x_param <= 1; x_param += 2) {

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

for (float x = 100; x < 250; x += x_span) {

float next_x = x + x_span;

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

float angle_x = ofMap(ofNoise(noise_seed.x, x * 0.0035 + ofGetFrameNum() * 0.0085), 0, 1, PI * -2, PI * 2);

auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

float angle_y = ofMap(ofNoise(noise_seed.y, x * 0.0035 + ofGetFrameNum() * 0.0085), 0, 1, PI * -2, PI * 2);

auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

float next_angle_x = ofMap(ofNoise(noise_seed.x, next_x * 0.0035 + ofGetFrameNum() * 0.0085), 0, 1, PI * -2, PI * 2);

auto next_rotation_x = glm::rotate(glm::mat4(), next_angle_x, glm::vec3(1, 0, 0));

float next_angle_y = ofMap(ofNoise(noise_seed.y, next_x * 0.0035 + ofGetFrameNum() * 0.0085), 0, 1, PI * -2, PI * 2);

auto next_rotation_y = glm::rotate(glm::mat4(), next_angle_y, glm::vec3(0, 1, 0));

vector<glm::vec3> vertices;

vertices.push_back(glm::vec4(x * x_param, 20, 0, 0) * rotation_y * rotation_x);

vertices.push_back(glm::vec4(next_x * x_param, 20, 0, 0)* next_rotation_y* next_rotation_x);

vertices.push_back(glm::vec4(next_x * x_param, -20, 0, 0) * next_rotation_y * next_rotation_x);

vertices.push_back(glm::vec4(x * x_param, -20, 0, 0) * rotation_y * rotation_x);

this->face.addVertices(vertices);

this->line.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);

this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

this->line.addIndex(index + 0); this->line.addIndex(index + 1);

this->line.addIndex(index + 2); this->line.addIndex(index + 3);

if (x_param == -1) {

this->face.addColor(ofColor(255, 0, 153));

}else{

this->face.addColor(ofColor(0, 203, 255));

}

if (x == 100 && x_param == -1) {

this->red_location = (vertices[0] + vertices[3]) / 2;

}

if (x == 100 && x_param == 1) {

this->blue_location = (vertices[0] + vertices[3]) / 2;

}

this->line.addIndex(start_index + 0); this->line.addIndex(start_index + 3);

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

}

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

vector<glm::vec3> vertices;

glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;

vertices.push_back(this->triangle_list[i].getVertex(0));

vertices.push_back(this->triangle_list[i].getVertex(1));

vertices.push_back(this->triangle_list[i].getVertex(2));

this->sphere_face.addVertices(vertices);

this->sphere_line.addVertices(vertices);

if (glm::distance(avg, this->red_location) > glm::distance(avg, this->blue_location)) {

this->sphere_face.addColor(ofColor(0, 203, 255));

}

else{

this->sphere_face.addColor(ofColor(255, 0, 153));

}

this->sphere_line.addColor(ofColor(239));

this->sphere_face.addTriangle(this->sphere_face.getNumVertices() - 1, this->sphere_face.getNumVertices() - 2, this->sphere_face.getNumVertices() - 3);

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

this->sphere_line.addIndex(this->sphere_line.getNumVertices() - 2); this->sphere_line.addIndex(this->sphere_line.getNumVertices() - 3);

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

}

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

void ofApp::draw() {

this->cam.begin();

ofDrawCircle(glm::vec3(), 81);

ofRotateX(ofGetFrameNum() * 0.37);

ofRotateY(ofGetFrameNum() * 0.72);

this->face.draw();

this->line.drawWireframe();

this->sphere_face.draw();

//this->sphere_line.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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 face, line, sphere_face, sphere_line;
vector<ofMeshFace> triangle_list;

glm::vec3 blue_location;
glm::vec3 red_location;
};

[ Link ]
https://github.com/junkiyoshi/Insta20210905

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年9月4日

Gradation circle. Draw by openFrameworks

[ Video ]

[ About ]
ノイズに渡す引数の間隔を変える。

Change the interval of arguments passed to noise.

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	float deg_span = 0.1;
	float noise_span = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, 0.0001, 0.025);
	for (float radius = 50; radius <= 200; radius += 50) {

		ofMesh face, line;
		line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
		for (float deg = 0; deg < 360; deg += deg_span) {

			int index = face.getNumVertices() - 2;

			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			auto noise_value = ofNoise(glm::vec3(location * noise_span, ofGetFrameNum() * 0.0001));
			float z = noise_value < 0.45 ? 1 : noise_value < 0.65 ? ofMap(noise_value, 0.45, 0.65, 0, 50) : 50;

			face.addVertex(glm::vec3(location, -z));
			face.addVertex(glm::vec3(location, z));

			line.addVertex(glm::vec3(location, -z));
			line.addVertex(glm::vec3(location, z));

			ofColor color;
			color.setHsb((int)ofMap(deg, 0, 360, 0, 255 * 3) % 255, 255, 255);

			face.addColor(color);
			face.addColor(color);

			if (index > -1) {

				face.addIndex(index); face.addIndex(index + 1); face.addIndex(index + 3);
				face.addIndex(index); face.addIndex(index + 2); face.addIndex(index + 3);

				line.addIndex(index); line.addIndex(index + 2);
				line.addIndex(index + 1); line.addIndex(index + 3);
			}
		}

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

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

		face.draw();

		ofSetColor(39);
		line.drawWireframe();
	}


	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

float deg_span = 0.1;

float noise_span = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, 0.0001, 0.025);

for (float radius = 50; radius <= 200; radius += 50) {

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (float deg = 0; deg < 360; deg += deg_span) {

int index = face.getNumVertices() - 2;

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

auto noise_value = ofNoise(glm::vec3(location * noise_span, ofGetFrameNum() * 0.0001));

float z = noise_value < 0.45 ? 1 : noise_value < 0.65 ? ofMap(noise_value, 0.45, 0.65, 0, 50) : 50;

face.addVertex(glm::vec3(location, -z));

face.addVertex(glm::vec3(location, z));

line.addVertex(glm::vec3(location, -z));

line.addVertex(glm::vec3(location, z));

ofColor color;

color.setHsb((int)ofMap(deg, 0, 360, 0, 255 * 3) % 255, 255, 255);

face.addColor(color);

if (index > -1) {

face.addIndex(index); face.addIndex(index + 1); face.addIndex(index + 3);

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

line.addIndex(index); line.addIndex(index + 2);

line.addIndex(index + 1); line.addIndex(index + 3);

}

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

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

line.addIndex(0); line.addIndex(line.getNumVertices() - 2);

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

face.draw();

ofSetColor(39);

line.drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210904

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年9月3日2021年9月3日

Endless collapse. Draw by openFrameworks

[ Video ]

[ About ]
ofNoise()の値で描写の有無を決める。
さらに、Y座標で値を増減させるようにする。

The value of ofNoise() determines whether or not to describe it.
In addition, the value should be increased or decreased by the Y coordinate.

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

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

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

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

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

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

	int span = 15;
	int len = 300;
	for (int x = len * -0.5; x <= len * 0.5; x += span) {

		for (int y = len * -2; y <= len * 0.5; y += span) {

			for (int z = len * -0.5; z <= len * 0.5; z += span) {

				auto noise_value = ofNoise(x * 0.01, z * 0.01, y * 0.01 + ofGetFrameNum() * 0.08);

				if (y > len * 0.35) {

					noise_value += ofMap(y, len * 0.35, len, 0.25, 1);
				}
				else if (y < len * 0.15) {

					noise_value += ofMap(y, len * -2, len * 0.15, -0.65, 0);
				}

				if (noise_value > 0.35) {

					int color_value = y < len * 0.35 ? y > -len * 0.75 ? ofMap(y, len * 0.35, -len * 0.75, 39, 128) : ofMap(y, -len * 0.75, len * -2, 128, 239) : 39;
					this->setBoxToMesh(this->face, this->frame, glm::vec3(x, y, z), span, ofColor(color_value), ofColor(239));
				}
			}
		}
	}
}

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

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

	ofSetColor(39);
	this->face.draw();

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

	this->cam.end();
}

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

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

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

	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));

	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));

	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);

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

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

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

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

int span = 15;

int len = 300;

for (int x = len * -0.5; x <= len * 0.5; x += span) {

for (int y = len * -2; y <= len * 0.5; y += span) {

for (int z = len * -0.5; z <= len * 0.5; z += span) {

auto noise_value = ofNoise(x * 0.01, z * 0.01, y * 0.01 + ofGetFrameNum() * 0.08);

if (y > len * 0.35) {

noise_value += ofMap(y, len * 0.35, len, 0.25, 1);

}

else if (y < len * 0.15) {

noise_value += ofMap(y, len * -2, len * 0.15, -0.65, 0);

}

if (noise_value > 0.35) {

int color_value = y < len * 0.35 ? y > -len * 0.75 ? ofMap(y, len * 0.35, -len * 0.75, 39, 128) : ofMap(y, -len * 0.75, len * -2, 128, 239) : 39;

this->setBoxToMesh(this->face, this->frame, glm::vec3(x, y, z), span, ofColor(color_value), ofColor(239));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

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

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

}

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

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

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));

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));

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);

for (int i = 0; i < 8; 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/Insta20210903

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