noise – ページ 277 – プログラミング de 落描き

2020年1月14日2020年1月14日

Switch box draw by Noise(x, y, z + frameCount). openFrameworks

[ Video ]

[ About ]
箱の描写をNoise(x, y, z + frameCount)の値で切り替える。

Switch box draw by Noise(x, y, z + frameCount)

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

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

	auto span = 10;
	for (auto x = -220; x <= 220; x += span) {

		for (auto y = -120; y <= 120; y += span) {

			if (-160 <= x && x <= 160 && -60 <= y && y <= 60) { continue; }

			for (auto z = -2000; z <= 0; z += span) {

				if (ofNoise(x * 0.008, y * 0.008, z * 0.008 + ofGetFrameNum() * 0.05) > 0.53) {

					this->setBoxToMesh(this->face_mesh, this->frame_mesh, glm::vec3(x, y, z), span);
				}
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(239);
	this->face_mesh.drawFaces();

	ofSetColor(39);
	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) {

	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);
}

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

	ofSetupOpenGL(1280, 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_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

this->face_mesh.clear();

this->frame_mesh.clear();

auto span = 10;

for (auto x = -220; x <= 220; x += span) {

for (auto y = -120; y <= 120; y += span) {

if (-160 <= x && x <= 160 && -60 <= y && y <= 60) { continue; }

for (auto z = -2000; z <= 0; z += span) {

if (ofNoise(x * 0.008, y * 0.008, z * 0.008 + ofGetFrameNum() * 0.05) > 0.53) {

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

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(239);

this->face_mesh.drawFaces();

ofSetColor(39);

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) {

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);

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200114

2020年1月12日

Sphere is transform and stop. openFrameworks

[ Video ]

[ About ]
球体の変化＆停止。

Sphere is transform and stop.

[ 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<ofMesh> mesh_list;
	vector<ofMeshFace> triangle_list;
	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) {};

ofEasyCam cam;

vector<ofMesh> mesh_list;

vector<ofMeshFace> triangle_list;

float noise_param;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

	ofIcoSpherePrimitive ico_sphere;
	ico_sphere = ofIcoSpherePrimitive(200, 3);
	this->triangle_list = ico_sphere.getMesh().getUniqueFaces();

	this->noise_param = ofRandom(1000);
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 60 < 45) {

		this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 45, 0.05, 0);
	}

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

		auto triangle = this->triangle_list[i];
		auto avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		auto noise_value = ofNoise(avg.x * 0.01, avg.y * 0.01, avg.z * 0.01, this->noise_param);

		vector<glm::vec3> vertices;
		vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(0) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));
		vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(1) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));
		vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(2) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));

		ofMesh mesh;

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

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

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

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

		mesh.addIndex(1);
		mesh.addIndex(2);
		mesh.addIndex(3);

		this->mesh_list.push_back(mesh);
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);
	ofRotateX(ofGetFrameNum() * 0.25);

	for (auto& mesh : this->mesh_list) {

		ofSetColor(39);
		mesh.drawFaces();

		ofSetColor(239);
		mesh.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);

ofSetLineWidth(1.5);

ofEnableDepthTest();

ofIcoSpherePrimitive ico_sphere;

ico_sphere = ofIcoSpherePrimitive(200, 3);

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

this->noise_param = ofRandom(1000);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 60 < 45) {

this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 45, 0.05, 0);

}

this->mesh_list.clear();

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

auto triangle = this->triangle_list[i];

auto avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

auto noise_value = ofNoise(avg.x * 0.01, avg.y * 0.01, avg.z * 0.01, this->noise_param);

vector<glm::vec3> vertices;

vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(0) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));

vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(1) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));

vertices.push_back(glm::normalize(glm::vec3(triangle.getVertex(2) - avg) * 0.9 + avg) * ofMap(noise_value, 0, 1, 50, 350));

ofMesh mesh;

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

mesh.addVertices(vertices);

mesh.addIndex(0);

mesh.addIndex(1);

mesh.addIndex(2);

mesh.addIndex(0);

mesh.addIndex(2);

mesh.addIndex(3);

mesh.addIndex(0);

mesh.addIndex(1);

mesh.addIndex(3);

mesh.addIndex(1);

mesh.addIndex(2);

mesh.addIndex(3);

this->mesh_list.push_back(mesh);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofRotateX(ofGetFrameNum() * 0.25);

for (auto& mesh : this->mesh_list) {

ofSetColor(39);

mesh.drawFaces();

ofSetColor(239);

mesh.drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200112/

2020年1月11日2020年1月11日

Switching camera target. openFrameworks

[ Movie ]

[ About ]
カメラの場所・ターゲットを切り替える。

Switching cameara target and position.

[ 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;
	ofTrueTypeFont font;

	vector<glm::vec3> location_list;
	glm::vec3 camera_location, target_location;
	int target_index, prev_index, camera_index;
};

#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;

ofTrueTypeFont font;

vector<glm::vec3> location_list;

glm::vec3 camera_location, target_location;

int target_index, prev_index, camera_index;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 30, true, true, true);

	for (int i = 0; i < 300; i++) {

		auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));
		location = glm::normalize(location) * ofRandom(150, 200);
		this->location_list.push_back(location);
	}

	this->target_index = ofRandom(this->location_list.size());
	this->prev_index = ofRandom(this->location_list.size());
	this->camera_index = ofRandom(this->location_list.size());
}

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

	ofSeedRandom(39);

	int param = ofGetFrameNum() % 120;
	if (param == 0) {
	
		this->camera_index = this->prev_index;
		this->prev_index = this->target_index;
		this->target_index = (int)(ofRandom(1000) + ofGetFrameNum()) % this->location_list.size();
	}

	if (param <= 60) {
	
		auto tmp = this->location_list[this->prev_index] - this->location_list[this->camera_index];
		this->camera_location = this->location_list[this->camera_index] + tmp * (param / 60.f);

		tmp = this->location_list[this->target_index] - this->location_list[this->prev_index];
		this->target_location = this->location_list[prev_index] + tmp * (param / 60.f);
	}
}

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

	this->cam.setPosition(this->camera_location);
	this->cam.lookAt(this->target_location);
	this->cam.begin();

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

		ofPushMatrix();
		ofTranslate(this->location_list[i]);
		ofRotateX(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));
		ofRotateY(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));
		ofRotateZ(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

		
		char noise_value = ofMap(ofNoise(this->location_list[i].x * 0.008, this->location_list[i].y * 0.008, this->location_list[i].z * 0.008, ofGetFrameNum() * 0.01), 0, 1, '0', 'Z');
		auto path = font.getCharacterAsPoints(noise_value, true, false);
		auto outline = path.getOutline();

		ofFill();
		i == this->target_index ? ofSetColor(239, 0, 0) : ofSetColor(239);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

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

			auto vertices = outline[outline_index].getVertices();
			for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

				auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5);
				ofVertex(location);
			}
		}
		ofEndShape(true);

		ofNoFill();
		ofSetColor(39);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

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

			auto vertices = outline[outline_index].getVertices();
			for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

				auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5);
				ofVertex(location);
			}
		}
		ofEndShape(true);

		ofPopMatrix();
	}

	this->cam.end();
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 30, true, true, true);

for (int i = 0; i < 300; i++) {

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

location = glm::normalize(location) * ofRandom(150, 200);

this->location_list.push_back(location);

}

this->target_index = ofRandom(this->location_list.size());

this->prev_index = ofRandom(this->location_list.size());

this->camera_index = ofRandom(this->location_list.size());

}

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

void ofApp::update() {

ofSeedRandom(39);

int param = ofGetFrameNum() % 120;

if (param == 0) {

this->camera_index = this->prev_index;

this->prev_index = this->target_index;

this->target_index = (int)(ofRandom(1000) + ofGetFrameNum()) % this->location_list.size();

}

if (param <= 60) {

auto tmp = this->location_list[this->prev_index] - this->location_list[this->camera_index];

this->camera_location = this->location_list[this->camera_index] + tmp * (param / 60.f);

tmp = this->location_list[this->target_index] - this->location_list[this->prev_index];

this->target_location = this->location_list[prev_index] + tmp * (param / 60.f);

}

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

void ofApp::draw() {

this->cam.setPosition(this->camera_location);

this->cam.lookAt(this->target_location);

this->cam.begin();

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

ofPushMatrix();

ofTranslate(this->location_list[i]);

ofRotateX(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

ofRotateY(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

ofRotateZ(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180));

char noise_value = ofMap(ofNoise(this->location_list[i].x * 0.008, this->location_list[i].y * 0.008, this->location_list[i].z * 0.008, ofGetFrameNum() * 0.01), 0, 1, '0', 'Z');

auto path = font.getCharacterAsPoints(noise_value, true, false);

auto outline = path.getOutline();

ofFill();

i == this->target_index ? ofSetColor(239, 0, 0) : ofSetColor(239);

ofBeginShape();

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

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

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

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

auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5);

ofVertex(location);

}

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

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

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

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

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

auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5);

ofVertex(location);

}

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200111

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