Print Page - how to set frame buffer in GLES20 in vuforia

Title: how to set frame buffer in GLES20 in vuforia
Post by: nima.sh23 on February 12, 2015, 01:35:58 PM

Hi
i want set a jpct frame buffer in GLES20 in vuforia for show my 3d object in camera.
how can i do that?

 if (!mActivity.isExtendedTrackingActive())
            {
            	   TextureManager tm = TextureManager.getInstance();
            	   if(!tm.containsTexture("texture"))
            	   {
            		   com.threed.jpct.Texture texture = new com.threed.jpct.Texture(BitmapHelper.rescale(BitmapHelper					
              					.convert(mActivity.getResources().getDrawable(R.drawable.camaro)), 64, 64));
            			TextureManager.getInstance().addTexture("texture", texture);
            	   }
                   InputStream objStream=null ;
                   InputStream mtlStream=null ;
                   World world = new World();
       			   world.setAmbientLight(20, 20, 20);
       			   Light sun = new Light(world);
       			   sun.setIntensity(250, 250, 250);
       		       try {
       		    		objStream = mActivity.getResources()
				    		.getAssets().open("camaro_obj");
       		    		mtlStream = mActivity.getResources()
				    		.getAssets().open("camaro_mtl");
       		       } catch (IOException e) {

					e.printStackTrace();
				}
	        	Object3D cube = Object3D.mergeAll(Loader.loadOBJ(objStream, mtlStream, 10));
				cube.setTexture("texture");
				cube.strip();
				cube.build();
				Camera cam = world.getCamera();
		        cam.moveCamera(Camera.CAMERA_MOVEOUT, 10);
		        cam.lookAt(cube.getTransformedCenter());
		        world.addObject(cube);
				SimpleVector sv = new SimpleVector();
				sv.set(cube.getTransformedCenter());
				sv.y -= 100;
				sv.z -= 100;
				sun.setPosition(sv);
				MemoryHelper.compact();
				com.threed.jpct.Matrix mResult = new com.threed.jpct.Matrix();
				mResult.setDump(modelViewMatrix);
				cube.setRotationMatrix(mResult);  
				cam.setBack(mResult);
                world.renderScene(fb);
                world.draw(fb);
                fb.display();

help me please....!!

Title: Re: how to set frame buffer in GLES20 in vuforia
Post by: EgonOlsen on February 13, 2015, 07:34:24 AM

What do you mean exactly. I've acutually no idea about Vuforia, but i think that it creates the GL context for itself. You have to make it create an GLES2.0 context and then create a jPCT FrameBuffer instance in GLES2.0 mode.

Title: Re: how to set frame buffer in GLES20 in vuforia
Post by: nima.sh23 on February 17, 2015, 07:11:51 AM

Thanks for your answer.
do you have a article for "use jpct in vuforia for android"?
help me please i need that.
thanks

Title: Re: how to set frame buffer in GLES20 in vuforia
Post by: EgonOlsen on February 17, 2015, 08:40:17 AM

There's the wiki: http://www.jpct.net/wiki/index.php/Integrating_JPCT-AE_with_Vuforia (http://www.jpct.net/wiki/index.php/Integrating_JPCT-AE_with_Vuforia). It doesn't cover the latest (Java based) version of Vuforia, but the basic ideas should be the same.

Title: Re: how to set frame buffer in GLES20 in vuforia
Post by: nima.sh23 on March 03, 2015, 09:00:30 AM

Thanks a lot.
I make a project with vuforia and jpct.
but have a question..!!!
i change my dataset in ImageTargets.cpp,but my project dosent build,I know i should use of Cygwin for compile,i install Cygwin,but i dont know how can i setting up on my project.
can you help me,please?
thanks
Nima.S-H

Title: Re: how to set frame buffer in GLES20 in vuforia
Post by: EgonOlsen on March 03, 2015, 05:47:12 PM

No idea from my side...never used this, never tried to...maybe somebody else knows?

www.jpct.net

jPCT-AE - a 3d engine for Android => Support => Topic started by: nima.sh23 on February 12, 2015, 01:35:58 PM