I just started using Rajawali and the Cardboard SDK (the integration that you can find in Rajawali’s repository). Based on the examples provided (loaders) in the repository and following the instructions to set up a new project I have created an example where I create a sphere (and attach a texture to it) and load an OBJ file, the odd thing is that I can actually see the sphere and the texture but not the OBJ object. I created a similar example where the difference just resides on the class that I’m extending, in one example I extend the RajawaliRender class (in this one I see the OBJ file) and in the other I extend the RajawaliCarboardRender. I would really appreciate if you can give a hand or provide me an example because I’m stuck and I have tried everything I can think of.
This is the content of my initScene method in both examples:
public void initScene(){
directionalLight = new DirectionalLight(1f, .2f, -1.0f);
directionalLight.setColor(1.0f, 1.0f, 1.0f);
directionalLight.setPower(2);
getCurrentScene().addLight(directionalLight);
Material material = new Material();
material.enableLighting(true);
material.setDiffuseMethod(new DiffuseMethod.Lambert());
material.setColor(0);
Texture earthTexture = new Texture("Earth", R.drawable.earthtruecolor_nasa_big);
try{
material.addTexture(earthTexture);
} catch (ATexture.TextureException error){
Log.d("DEBUG", "TEXTURE ERROR");
}
earthSphere = new Sphere(1, 24, 24);
earthSphere.setMaterial(material);
getCurrentScene().addChild(earthSphere);
getCurrentCamera().setZ(14.2f);
final LoaderOBJ loaderOBJ = new LoaderOBJ(mContext.getResources(), mTextureManager, R.raw.multiobjects_obj);
loadModel(loaderOBJ, this, R.raw.multiobjects_obj);
}
Related
Currently I am trying to work with both textureView and OpenGL, and my target is to read the buffer from SurfaceTexture. After lots of searching, I found grafika, but fail to find a suitable example that using textureview.(and, for some reason I have to use textureView)
What I try was that I created a texture and tried to set the textureView to use it:
#Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(null);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setContentView(R.layout.activity_textureview);
displayTextureView=(TextureView) findViewById(R.id.camera_textureview);
mEglCore = new EglCore(null, EglCore.FLAG_RECORDABLE);
mOffscreenSurface=new OffscreenSurface(mEglCore,VIDEO_WIDTH,VIDEO_HEIGHT);
mOffscreenSurface.makeCurrent();
mFullFrameBlit = new FullFrameRect(
new Texture2dProgram(Texture2dProgram.ProgramType.TEXTURE_EXT));
mTextureId = mFullFrameBlit.createTextureObject();
mCameraTexture = new SurfaceTexture(false);
mCameraTexture.attachToGLContext(mTextureId);
displayTextureView.setSurfaceTextureListener(mSurfaceTextureListener);
displayTextureView.setSurfaceTexture(mCameraTexture);
mHandler = new MainHandler(this);
Initialized=true;
}
But then it gitves me the error:
GLConsumer is already attached to a context
I have also found this, but after I tried the method described here what I got from glReadPixels was totally black, so I guess the surfaceTexture must be attached to GLcontext to read the pixels.
Can anybody give me some help?
you should refer to this
https://github.com/google/grafika/blob/master/app/src/main/java/com/android/grafika/ContinuousCaptureActivity.java
this example use surfaceView , you just need to replace to textureView.
the 386 row:"mDisplaySurface = new WindowSurface(mEglCore, holder.getSurface(), false);"
just replace holder.getSurface() with surfacetexture from textureView.
And there is a method to read buffer
https://github.com/google/grafika/blob/master/app/src/main/java/com/android/grafika/gles/EglSurfaceBase.java
look at the saveFrame method.
I'm trying to display a custom vector layer on a map using Mapbox in my Android application. Using the latest mapbox version.
When I include the layer the following way :
//DOES NOT WORK
binding.mapView.getMapAsync(mapboxMap -> {
map = mapboxMap;
VectorSource source = new VectorSource("source-id", new TileSet("2.1.0", baseUrl + "/{z}/{x}/{y}.mvt"));
mapboxMap.addSource(source);
LineLayer layer = new LineLayer("zones-outline", "source-id");
layer.setSourceLayer("zones");
layer.setProperties(
PropertyFactory.lineWidth(2f),
PropertyFactory.lineColor(getResources().getColor(R.color.md_blue_500))
);
mapboxMap.addLayer(layer);
})
It show nothing (no log in android nor in my server, it is like the layer is not even known to mapbox).
But if I put the addsource and addlayer code in a runnable, lets say with a 100 milliseconds delay, it does show my layers properly. Obviously this looks like its related to some kind of concurrency or "order of initialization", and the delay works, but it is not a nice and proper solution (I imagine on old device it could take more than 100 ms to load the map, maybe it wont work).
//WORKS
binding.mapView.getMapAsync(mapboxMap -> {
final Handler handler = new Handler();
handler.postDelayed(() -> {
map = mapboxMap;
VectorSource source = new VectorSource("source-id", new TileSet("2.1.0", baseUrl + "/{z}/{x}/{y}.mvt"));
mapboxMap.addSource(source);
LineLayer layer = new LineLayer("zones-outline", "source-id");
layer.setSourceLayer("zones");
layer.setProperties(
PropertyFactory.lineWidth(2f),
PropertyFactory.lineColor(getResources().getColor(R.color.md_blue_500))
);
mapboxMap.addLayer(layer);
}, 100)
})
Is there another method / callback where I should put this initialization ? How to be sure my layers will be drawn ?
The problem came from the fact that I was setting, also in the onMapReady callback, a new style url (loaded dynamically depending on the content displayed).
I move the mapView.setStyleUrl(mapboxStyle) before the map initialization :
mapView.setStyleUrl(mapboxStyle);
binding.contestMapView.onCreate(savedInstanceState);
binding.contestMapView.getMapAsync(mapboxMap -> {
// vector source and layer initialization
});
I am trying to dynamically create an image database using arcores new image tracking feature.
Currently I have a server serving me image locations which I download to the persistent data path of my device. I use these images to then create new database entries like below:
Public Variables:
public AugmentedImageDatabase newBD;
public AugmentedImageDatabaseEntry newEntry;
Here I do regex matching to get the images from the datapath and convert them to texture2D's in order to populate the AugmentedImageDatabaseEntry values.
Regex r1 = new Regex(#"https?://s3-([^.]+).amazonaws.com/([^/]+)/([^/]+)/(.*)");
// Match the input for file name
Match match = r1.Match(input);
if (match.Success)
{
string v = match.Groups[4].Value;
RegexMatch = v;
Texture2D laodedTexture = LoadTextureToFile(v);
laodedTexture.EncodeToPNG();
AugmentedImageDatabaseEntry newEntry = new AugmentedImageDatabaseEntry(v, laodedTexture, Application.persistentDataPath + "/" + v);
newEntry.Name = v;
newEntry.Texture = laodedTexture;
newEntry.TextureGUID = Application.persistentDataPath + "/" + v;
Debug.Log(newEntry.Name);
Debug.Log(newEntry.Texture);
Debug.Log(newEntry.TextureGUID);
newBD.Add(newEntry);
}
To get this to work on android I had to modify the source of ARCore's unity implementation a little so that the database.Add() function would work outside of the editor.
All of this seems to work seamlessly as I don't get any errors yet.
Once I change scenes to the ARCore scene I instantiate an ARCore Camera and create a new sessionconfig which holds a reference to the database populated above.
Here is that code:
public class NewConfigSetup : MonoBehaviour {
public GameObject downloadManager;
public GameObject arcoreDevice;
// Use this for initialization
void Start () {
downloadManager = GameObject.Find("DownlaodManager");
TestModelGenerator generator = downloadManager.GetComponent<TestModelGenerator>();
GoogleARCore.ARCoreSessionConfig newconfig = new GoogleARCore.ARCoreSessionConfig();
GoogleARCore.ARCoreSessionConfig config = ScriptableObject.CreateInstance<GoogleARCore.ARCoreSessionConfig>();
config.AugmentedImageDatabase = generator.newBD;
Debug.Log("transfered db size --------------- " + config.AugmentedImageDatabase.Count);
arcoreDevice.GetComponent<GoogleARCore.ARCoreSession>().SessionConfig = config;
Instantiate(arcoreDevice,new Vector3(0,0,0), Quaternion.identity);
}
}
When I run in the editor, I dont get errors untill I view the database in the editor, thats when I get this error:
ERROR: flag '--input_image_path' is missing its argument; flag
description: Path of image to be evaluated. Currently only supports
*.png, *.jpg and *.jpeg.
When I debug and look in the memory of the AugmentedImageDatabase. Everything seems to be there and working fine. Also once I build for android I get no errors whatsoever, as well as when I use 'adb logcat -s Unity' in the command line, no exceptions are thrown.
Could this be a limitation with the new ARCore feature? Are the AugmentedImageDatabases not allowing for dynamic creation on android? If so than why are there built in functions for creating them?
I understand the features are brand new and there is not much documentation anywhere so any help would be greatly appreciated.
I posted an Issue on ARCore's Github page, and got a response that the feature you're talking about isn't yet exposed in the Unity API :
https://github.com/google-ar/arcore-unity-sdk/issues/256
I have recently been modifying Grafika's TextureMovieEncoder to create a recording of what I displayed onscreen: two Sprite2ds which are overlapping. Using the CameraCaptureActivity example as a reference point, I effectively ported what I created for my rendering thread into the TextureMovieEncoder but the output is jagged lines across the screen. I think I understand what's wrong, but I don't know how to fix it:
Some code:
private void prepareEncoder(EGLContext sharedContext, int width, int height, int bitRate,
File outputFile) {
try {
mVideoEncoder = new VideoEncoderCore(width, height, bitRate, outputFile);
} catch (IOException ioe) {
throw new RuntimeException(ioe);
}
mEglCore = new EglCore(sharedContext, EglCore.FLAG_RECORDABLE);
mInputWindowSurface = new WindowSurface(mEglCore, mVideoEncoder.getInputSurface(), true);
mInputWindowSurface.makeCurrent();
textureProgram = new Texture2dProgram(Texture2dProgram.ProgramType.TEXTURE_EXT);
backgroundDrawable = new Drawable2d(Drawable2d.Prefab.RECTANGLE);
backgroundRect = new Sprite2d(backgroundDrawable);
frontDrawable = new Drawable2d(Drawable2d.Prefab.RECTANGLE);
frontRect = new Sprite2d(frontDrawable);
backgroundRect.setTexture(backTextureId);
frontRect.setTexture(frontTextureId);
updateGeometry();
}
private void handleFrameAvailable(Transform transform, long timestampNanos) {
if (VERBOSE) Log.d(TAG, "handleFrameAvailable tr=" + transform);
mVideoEncoder.drainEncoder(false);
backgroundRect.draw(textureProgram, transform.movieMatrix);
frontRect.draw(textureProgram, transform.cameraMatrix);
mInputWindowSurface.setPresentationTime(timestampNanos);
mInputWindowSurface.swapBuffers();
}
I think the problem comes down to my lack of understanding of how to establish the right projection onto the WindowSurface for the VideoEncoder. In the Grafika example, FullFrameRect is used, which is easier since you can just use the identity matrix to stretch a given texture to the surface area. However, since I want to create the overlapping effect, I needed to use Sprite2d. Is the problem the shared EGLContext? Do I need to create a new one so that I can set the viewport to match the WindowSurface size? A bit lost on where to go from here.
Turns out the functionality of the code above was fine. The problem was the interaction between the TextureEncoder and the calling parent.
I was initializing the member variables backTextureId and frontTextureId after prepareEncoder and it was therefore recording garbage data into the output.
I am new to Box2d and have a situation where I have two bodies. One is static and the other is dynamic. I want my dynamic body to go down wards and come back and hit the other body along same line. I thought to use prismatic joint after some initial study. I have looked into some example and written a piece of code in onLoadScene(). But nothing is moving. Here is the code:
#Override
public Scene onLoadScene()
{
.....
PrismaticJointDef prismaticJointDef = new PrismaticJointDef();
prismaticJointDef.initialize(bdy_holder, bdy_spring, bdy_holder.getWorldCenter(), new Vector2(1.0f, 0.0f));
prismaticJointDef.lowerTranslation = -5.0f;
prismaticJointDef.upperTranslation = 2.5f;
prismaticJointDef.enableLimit = true;
prismaticJointDef.maxMotorForce = 200.0f;
prismaticJointDef.motorSpeed = 10.0f;
prismaticJointDef.enableMotor = true;
prismaticJointDef.collideConnected = true;
prismatic_Joint = (PrismaticJoint)this.mPhysicsWorld.createJoint(prismaticJointDef);
}
Now I think the bodies should be moving when I run the application, but they are not movng. I am totally new and can't figure out the exact problem. Kindly guide me to the problem, solution and proper example of using this. Thanks.
try
prismaticJointDef.collideConnected = false;