[Unity] 複数の端末の解像度に対応させる1 - Sceneに表示される解像度を固定化する ref: http://qiita.com/nutti/items/733f296c5a09b6867baa

Aspect_Ratio_Controller-part1.js

var offset : Vector2 = Vector2(0.0f, 0.0f);     // 中心からのずれ
var scale : Vector2 = Vector2(1.0f, 1.0f);      // カメラの拡大率
var cam : Camera = null;                        // アスペクト比を固定化するカメラ

private var width : float = 640.0f;             // 横幅 (目標解像度)
private var height : float = 960.0f;            // 高さ (目標解像度)

var targetAspect : float;                       // 目標のアスペクト比
var curAspect : float;                          // 補正前の「Scene」のアスペクト比
var ratio : float;                              // 補正前の「Scene」のアスペクト比 ÷ 目標のアスペクト比

targetAspect = width / height;
curAspect = Screen.width * 1.0f / Screen.height;  // 補正前の「Scene」の横幅・縦幅はSceneのメンバ変数から取得可能
ratio = curAspect / targetAspect;

// 表示領域の横幅・高さ・左上のXY座標をセット
// 横長の場合
if (1.0f > ratio) {
    cam.rect.x = 0.0f + offset.x;
    cam.rect.width = 1.0f;
    cam.rect.y = (1.0f - ratio) / 2.0f + offset.y;
    cam.rect.height = ratio;
    cam.orthographicSize = Screen.width / (2.0f * scale.x);
}
// 縦長の場合
else {
    ratio = 1.0f / ratio;
    cam.rect.x = (1.0f - ratio) / 2.0f + offset.x;
    cam.rect.width = ratio;
    cam.rect.y = 0.0f + offset.y;
    cam.rect.height = 1.0f;
    cam.orthographicSize = Screen.height / (2.0f * scale.y);
}

Aspect_Ratio_Controller.js

// Aspect Ratio Controller Ver 1.0

#pragma strict

#if UNITY_EDITOR
var resolution : Vector2 = Vector2(Screen.width, Screen.height);
var targetDevice : iPhoneGeneration;
#endif

var enable : boolean = true;                    // enable fixed aspect ratio
var offset : Vector2 = Vector2(0.0f, 0.0f);     // offset
var scale : Vector2 = Vector2(1.0f, 1.0f);      // scaling
var cam : Camera = null;                        // 'Camera' object

private var width : float = 640.0f;             // width (actual resolution)
private var height : float = 960.0f;            // height (actual resolution)
private var camRect : Rect;                     // camera's rectangle

function Start()
{
    SetActualResolution();
}

function Update()
{
    var targetAspect : float;
    var curAspect : float;
    var ratio : float;

    if (!enable)    { return; }
    if (!cam)       { return; }

#if UNITY_EDITOR        // for Unity editor
    SetEditorActualResolution(targetDevice);
#endif

    targetAspect = width / height;
    curAspect = Screen.width * 1.0f / Screen.height;
    ratio = curAspect / targetAspect;

    if (1.0f > ratio) {
        cam.rect.x = 0.0f + offset.x;
        cam.rect.width = 1.0f;
        cam.rect.y = (1.0f - ratio) / 2.0f + offset.y;
        cam.rect.height = ratio;
        cam.orthographicSize = Screen.width / (2.0f * scale.x);
    }
    else {
        ratio = 1.0f / ratio;
        cam.rect.x = (1.0f - ratio) / 2.0f + offset.x;
        cam.rect.width = ratio;
        cam.rect.y = 0.0f + offset.y;
        cam.rect.height = 1.0f;
        cam.orthographicSize = Screen.height / (2.0f * scale.y);
    }

    camRect = cam.rect;
}

private function SetActualResolution()
{
#if UNITY_EDITOR        // for Unity editor
    SetEditorActualResolution(targetDevice);
#elif UNITY_IPHONE      // for iPhone/iPad
    SetiPhoneActualResolution(iPhone.generation);
#elif UNITY_ANDROID     // for Android
    SetAndroidActualResolution();
#endif
}

private function SetEditorActualResolution(device : iPhoneGeneration)
{
    if (device == iPhoneGeneration.Unknown) {
        width = resolution.x;
        height = resolution.y;
    }
    else{
        SetiPhoneActualResolution(device);
    }
}

private function SetiPhoneActualResolution(generation : iPhoneGeneration)
{
    switch (generation) {
        case iPhoneGeneration.iPhone4S:
            width = 640.0f;
            height = 960.0f;
            break;
        case iPhoneGeneration.iPhone5:
        case iPhoneGeneration.iPhone5C:
        case iPhoneGeneration.iPhone5S:
            width = 640.0f;
            height = 1136.0f;
            break;
        case iPhoneGeneration.iPad1Gen:
        case iPhoneGeneration.iPad2Gen:
            width = 768.0f;
            height = 1024.0f;
            break;
        case iPhoneGeneration.iPad3Gen:
        case iPhoneGeneration.iPad4Gen:
        case iPhoneGeneration.iPad5Gen:
        case iPhoneGeneration.iPadMini2Gen:
            width = 1536.0f;
            height = 2048.0f;
            break;
        default:
            width = 640.0f;
            height = 960.0f;
            break;
    }
}

private function SetAndroidActualResolution()
{
    height = 1280.0f;
    width = 800.0f;
}

// get actual resolution width
function GetWidth() : float
{
    return width;
}

// get actual resolution height
function GetHeight() : float
{
    return height;
}

// get camera rect
function GetCameraRect() : Rect
{
    return camRect;
}

@script AddComponentMenu( "Colorful Pico/Lib/Cross Platform/Aspect Ratio Controller" )

Fixed_Aspect_Ratio.js

#pragma strict

var cam : Camera = null;       // アスペクト比を固定化するカメラ
var width : float = 640.0f;    // 横幅 (目標解像度)
var height : float = 960.0f;   // 高さ (目標解像度)
var camRect : Rect;

function Update()
{
    var targetAspect : float;  // 目標のアスペクト比
    var curAspect : float;     // 補正前の「Scene」のアスペクト比
    var ratio : float;         // 補正前の「Scene」のアスペクト比 ÷ 目標のアスペクト比

    targetAspect = width / height;
    // 補正前の「Scene」の横幅・縦幅はSceneのメンバ変数から取得可能
    curAspect = Screen.width * 1.0f / Screen.height;  
    ratio = curAspect / targetAspect;

    // 表示領域の横幅・高さ・左上のXY座標をセット
    // 横長の場合
    if (1.0f > ratio) {
        cam.rect.x = 0.0f;
        cam.rect.width = 1.0f;
        cam.rect.y = (1.0f - ratio) / 2.0f;
        cam.rect.height = ratio;
        cam.orthographicSize = Screen.width / 2.0f;
    }
    // 縦長の場合
    else {
        ratio = 1.0f / ratio;
        cam.rect.x = (1.0f - ratio) / 2.0f;
        cam.rect.width = ratio;
        cam.rect.y = 0.0f;
        cam.rect.height = 1.0f;
        cam.orthographicSize = Screen.height / 2.0f;
    }
    camRect = cam.rect;
}