jPCT is a free, lightweight 3D-Engine for Java and Android.
Questions tagged [jpct]
45 questions
51
votes
5 answers
Looping Error on Android Emulator
I can't seem to launch any of my apps in my Android emulator because every ~2 seconds this error pops up, and I believe this is making my app crash...
Note: I've never once tried to record audio, which I think it's trying to do... so why is it…

hewiefreeman
- 1,137
- 1
- 14
- 31
9
votes
4 answers
Load 3d models with jPCT-AE
I am trying to load 3d models in my application with jPCT-AE. I read through several tutorials and I think I understand the basics, but I have yet to succeed in integrating the 3d files I have.
I am making use of pieces of codes I found on…

Romain
- 173
- 1
- 7
8
votes
3 answers
Integrating jpct-ae to Qualcomm's Vuforia engine in android
In Android, I am trying to integrate JPCT to Vuforia by using this tutorial:
http://www.jpct.net/wiki/index.php/Integrating_JPCT-AE_with_Vuforia
The first time the application is launched, it works, but when I go back and I touch "play" again, it…

Romain
- 173
- 1
- 7
4
votes
1 answer
Integrating jPCT with Vuforia / QCAR SDK
I have problem using Vuforia with jPCT.
I have successfully passed the modelViewMatrix from Vuforia native code
QCAR::Matrix44F modelViewMatrix = QCAR::Tool::convertPose2GLMatrix(imageResult->getPose())
to Java.
And then I try to set the camera…

jack
- 41
- 1
4
votes
3 answers
Is it possible to postpone garbage collection after loading
I am loading 3d models (1MB - 10MB) into memory which takes a long time (20 sec for 1.5MB model). When I look at the logs I see that the garbage collector constantly frees memory and pauses. See below for the logs:
07-20 17:37:25.340:…

cooxie
- 2,934
- 5
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- 17
3
votes
1 answer
Stretch 2D plane to 3D cube
I'm working on a Java game that has both a 2D game panel and "pseudo"-3D one.
It isn't real 3D as it's merely some 2D planes put in a 3D environment (no custom created models).
I'm using jPCT as render engine and I'm currently looking into getting…

srdoso
- 31
- 2
3
votes
0 answers
how toset a same generic scale for different 3d models in jpct-ae
In my app, am using JPCT-ae for 3d rendering. I am downloading 3d models form server and rendering it in android device. my problem is some models are small and some are very big. I want to set one generic scale for all the models regardless of what…

gooner
- 349
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- 17
3
votes
1 answer
Integrating JPCT-AE with Vuforia
I am Integrating JPCT-AE with Vuforia for as Vuforia sample ImageTarget teapot model. I followed the kelmar and Sam Rad's answer and now I am able to render my model as well as teapot but in landscape mode only.
:::::BUT:::::::
When I make changes…

ashunkhs
- 61
- 1
- 7
3
votes
0 answers
Why is JPCT-AE AGL font class only working on Android emulator?
I am currently using the JPCT-AE framework to build a 3D game for android. Because it does not have a class for displaying Fonts yet, it has created what is called an AGLFont class for displaying text on the android screen. Here is the link to the…

user1207381
- 581
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2
votes
0 answers
one model how to use multiple texture with jpct-ae
one model how to use multiple texture?
i have one obj model contain house and grass ,
how can i setTexture use house texture and grass texture for this obj model ?
TextureManager tm = TextureManager.getInstance();
Texture houseTexture = new…

ushang000
- 21
- 2
2
votes
1 answer
Texture with alpha channel not working on 3ds model in JPCT
About my problem: What is the way to get textures with alpha channel to work?
I use a png texture with alpha channel, but the result is black color on transparent area.
Android program result:
enter image description here
3ds model in…

user3396172
- 21
- 3
2
votes
1 answer
Integrating jPCT-AE and ARToolKit in Android
I'm using the ARToolKit for Android to build an AR app. I can apply the Projection Matrix and the Marker Transformation Matrix in OpenGL without problem, as explained in the ARSimple example. However, I did not find a way to apply correctly these to…

Giuppe
- 434
- 3
- 7
2
votes
1 answer
integrating JPCT-ae with QCAR(vuforia)
i know what i am going to ask is already discussed sometimes but after going through all of them i can't found my complete answer so i am asking a new question
when i tried integrating JPCT-ae with QCAR all goes well as expected, i got my modelview…

mrYogi
- 992
- 2
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2
votes
1 answer
JPCT - 3D to 2D (flat perspective)
I'm using JPCT to create 3D modelling software. The center of the program has a big view of the model. There are xy, xz and yz views at the side to see each side of the model in detail.
The Problem I have is that I can not remove the "perspective"…

aZen
- 223
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- 8
2
votes
0 answers
Performance on GLSurfaceView
I am using JPCT-AE on a GLSurfaceView to create a live wallpaper.
First I left the renderer do draw on the surface freely (not trying to cap the frame rate in any way). Obviously, the cpu usage went to 90% (using a Defy+ with gingerbread -- my…

arvere
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