How to use ExternalTexture as background of SceneView?

[eqgis]

Hello,my friends.Is there any way to use ExternalTexture as background？

[eqgis]

I have solved it by using CameraStream.

[RGregat]

I'm glad you found a solution. If you don't mind, please post your solution as a short code snippet in case others stumble across the same question.

[eqgis]

Create new class.

public class ExSceneView extends SceneView{
    private static final String TAG = ExSceneView.class.getSimpleName();

    @Nullable
    private CameraStream cameraStream;
    @Nullable
    private ExternalTexture externalTexture;

    public ExSceneView(Context context) {
        super(context);
    }

    public ExSceneView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected void initialize() {
        // SceneView will initialize the scene, renderer, and camera.
        super.initialize();

        externalTexture = new ExternalTexture();
        Renderer renderer = Preconditions.checkNotNull(getRenderer());
        // Initialize CameraStream
        cameraStream = new CameraStream(-1,renderer);
    }

    @Override
    protected boolean onBeginFrame(long frameTimeNanos) {
        // Setup Camera Stream if needed.
        if (!cameraStream.isTextureInitialized()) {
            cameraStream.initializeTexture(externalTexture);
        }
        return true;
    }

    @Nullable
    public ExternalTexture getExternalTexture() {
        return externalTexture;
    }
}

add this way in CameraStream.

    public void initializeTexture(ExternalTexture externalTexture) {
        if (isTextureInitialized()) {
            return;
        }
        if (externalTexture == null)return;

        // External Camera Texture
        if(cameraTexture == null) {
            cameraTexture = externalTexture;
        }

        if (depthOcclusionMode == DepthOcclusionMode.DEPTH_OCCLUSION_ENABLED && (
                depthMode == DepthMode.DEPTH ||
                depthMode == DepthMode.RAW_DEPTH)) {
            if (occlusionCameraMaterial != null) {
                isTextureInitialized = true;
                setOcclusionMaterial(occlusionCameraMaterial);
                initOrUpdateRenderableMaterial(occlusionCameraMaterial);
            }
        } else {
            if (cameraMaterial != null) {
                isTextureInitialized = true;
                setCameraMaterial(cameraMaterial);
                initOrUpdateRenderableMaterial(cameraMaterial);
            }
        }
    }