無聊記事

星期一, 7月 21, 2014

HTML5 + WebGL 實作小筆記

1.
(1) iOS 7 以前(包含)，無法使用瀏覽器取得攝影機畫面。(navigator.getUserMedia函式)
(2) Chrome on android 可以用程式抓出所有多媒體設備，並且判斷需要的設備做選擇，例如後攝影機。(判斷式：http://kanbear.blogspot.tw/2014/07/htmlthreejs_21.html)
(3) Firefox on android 無法以程式選擇需要的攝影機，在使用者授權攝影機使用時交由使用者決定攝影機。
(4) Opera on android 預設使用後攝影機。

HTML截取陀螺儀轉存至THREE.js

來源：http://w3c.github.io/deviceorientation/spec-source-orientation.html
其實似乎直接用四元素的公式就可以使用了，但因為實作上需要對應實際地標方向，需要做一些旋轉，在測試期間換成矩陣去儲存，後來就沒有改回四元素。

var alpha = 0;
var beta = 0;
var gamma = 0;
var gyroscopeQuaternion = new THREE.Quaternion();
gyroscopeQuaternion.setFromEuler(new THREE.Euler(0,0,0));

if (window.DeviceMotionEvent==undefined) {
}
else {
window.ondeviceorientation = function(event) {
alpha = event.alpha;
beta = event.beta;
gamma = event.gamma;
}

setInterval(function() {

var _x = beta ? beta * degtorad : 0; // beta value
var _y = gamma ? gamma * degtorad : 0; // gamma value
var _z = alpha ? alpha * degtorad : 0; // alpha value

var cX = Math.cos( _x );
var cY = Math.cos( _y );
var cZ = Math.cos( _z );
var sX = Math.sin( _x );
var sY = Math.sin( _y );
var sZ = Math.sin( _z );

//
// ZXY rotation matrix construction.
//

var m11 = cZ * cY - sZ * sX * sY;
var m12 = - cX * sZ;
var m13 = cY * sZ * sX + cZ * sY;

var m21 = cY * sZ + cZ * sX * sY;
var m22 = cZ * cX;
var m23 = sZ * sY - cZ * cY * sX;

var m31 = - cX * sY;
var m32 = sX;
var m33 = cX * cY;

var rotationMatrix = new THREE.Matrix4(
m11, m12, m13, 0,
m21, m22, m23, 0,
m31, m32, m33, 0,
0, 0, 0, 1
);

gyroscopeQuaternion = new THREE.Quaternion();
gyroscopeQuaternion.setFromRotationMatrix(rotationMatrix);

}, 100);
}

星期四, 4月 17, 2014

在Unity 用Gmail帳號寄信 C#

using UnityEngine;//純Log用

using System;

using System.IO;

using System.Net;

using System.Net.Mail;

using System.Net.Security;

using System.Security.Cryptography.X509Certificates;

public class Mail {

public void SendMail() {

MailMessage mail = new MailMessage();

mail.From = new MailAddress("寄件者信箱");

mail.To.Add("收件者信箱");

mail.Subject = "主旨";

try{

//內文附圖

AlternateView plainView = AlternateView.CreateAlternateViewFromString("<p>",null, "text/plain");

mail.AlternateViews.Add(plainView);

AlternateView htmlView = CreateAlternateView("Floor0001");

mail.AlternateViews.Add(htmlView);

//附件

FileStream imageFileStream = new FileStream(Application.streamingAssetsPath+"/Floor0001.jpg",FileMode.Open);

Attachment attachment = new Attachment(imageFileStream,"Floor0001.jpg");

mail.Attachments.Add(attachment);

Debug.Log("Success");

}catch{

Debug.Log("Fail");

}

SmtpClient smtpServer = new SmtpClient("smtp.gmail.com");

smtpServer.Port = 587;

smtpServer.Credentials = new System.Net.NetworkCredential("寄件者信箱", "寄件者密碼") as ICredentialsByHost;

smtpServer.EnableSsl = true;

ServicePointManager.ServerCertificateValidationCallback =

delegate(object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; };

smtpServer.Send(mail);

}

private AlternateView CreateAlternateView(string pictureName) {

string htmlBody = "<html><body><img src=cid:"+pictureName+"A></img><p>" +

"<img src=cid:"+pictureName+"B></img><p>" +

"Send by unity3d!</body></html>";

AlternateView alternateView = AlternateView.CreateAlternateViewFromString(

htmlBody,

null, "text/html");

LinkedResource imageA = new LinkedResource(Application.streamingAssetsPath+"/"+pictureName+"A.jpg" );

imageA.ContentId = pictureName+"A";

LinkedResource imageB = new LinkedResource(Application.streamingAssetsPath+"/"+pictureName+"B.jpg" );

imageB.ContentId = pictureName+"B";

alternateView.LinkedResources.Add(imageA);

alternateView.LinkedResources.Add(imageB);

return alternateView;

}