Question

我试图禁用相机自动曝光。根据此处的文档https://developers.google.com/project-tango/apis/c/reference/group/config-params，可以在配置中设置color_mode_auto，color_exp和color_iso值。

我已经尝试在TangoApplication.cs中创建TangoConfig对象之后直接设置值，但我收到一条警告，说这些TangoConfig无法设置相关键（直接从文档中获取的键字符串名称）上文）。

是否可以在C＃中设置这些值，如果是，那么正确的位置在哪里？

Answer 1

您可能需要编写一个可以在Unity摄像头实例上设置iso值和曝光的插件。你可以通过一个实例来运行相机的参与，通过一些涉及解析相机实例的棘手的hackery，然后你应该能够注入iso /曝光参数。

此类插件的示例类似于Unity的相机捕获工具包（https://www.assetstore.unity3d.com/en/#!/content/56673）

它可以让您挂钩相机并应用属性。这是关于如何解决相机的片段。

Class clsPlayer = Class.forName("com.unity3d.player.UnityPlayer");
    Field fCurrentActivity = clsPlayer.getDeclaredField("currentActivity");
    fCurrentActivity.setAccessible(true);
    com.unity3d.player.UnityPlayerActivity currentActivity = (com.unity3d.player.UnityPlayerActivity)fCurrentActivity.get(null);
    ret.playerActivity = currentActivity;

    Field fPlayer = currentActivity.getClass().getDeclaredField("mUnityPlayer");
    fPlayer.setAccessible(true);
    com.unity3d.player.UnityPlayer player = (com.unity3d.player.UnityPlayer)fPlayer.get(currentActivity);
    ret.player = player;

    Field f = player.getClass().getDeclaredField("y");
    f.setAccessible(true);
    java.util.ArrayList cameraArrays = (java.util.ArrayList)f.get( player );
    int sz = cameraArrays.size();

然后你必须更改Android插件中的参数，如下所示（取自Camera Capture Kit）

Camera.Parameters params = ret.camera.getParameters();

    String flat = params.flatten();
    String iso_keyword=null;
    if(flat.contains("iso-values")) {
        iso_keyword="iso";
    } else if(flat.contains("iso-mode-values")) {
        iso_keyword="iso";
    } else if(flat.contains("iso-speed-values")) {
        iso_keyword="iso-speed";
    } else if(flat.contains("nv-picture-iso-values")) {
        iso_keyword="nv-picture-iso";
    }
    if( iso_keyword == null ) {
        Log.d("Unity", "CameraCaptureKit: It looks like there was no support for iso on the device." ); 
        return;
    }

    String strSupportedIsoValues = UnityCamera_GetSupportedISOValues();
    ArrayList<String> supportedIsoValues = new ArrayList<String>(Arrays.asList(strSupportedIsoValues.split(",") ));
    //ArrayList<String> supportedIsoValues = Arrays.asList( strSupportedIsoValues.split(",") );
    boolean contains = false;
    for( String isoValue : supportedIsoValues ) {
        if(isoValue.contains(newValue)) { 
            contains = true; 
            break; 
        }
    }
    if( contains == false ) {
        Log.d("Unity", "CameraCaptureKit: failed to set ISO, the value " + newValue + " is not supported. ( " + strSupportedIsoValues + " )" );
        return;
    }

    // update the camera.
    params.set( iso_keyword, newValue );
    ret.camera.setParameters(params);

干杯

如何从c＃/ Unity

1 个答案: