Hi.

I was wondering if the G1 supports OpenGL ES fully or not.

I was testing the 3d cube apps that came with the ApiDemos package, and found that only the Kube class worked. The other two examples, "GLSurfaceView" and "TranslucentGLSurfaceView" did not work on my G1.

They worked find on the emulator, but just not on the T-Mobile G1 phone.

I cannot find any information regarding the G1 and OpenGL ES. All I can tell is that the G1 seems to support certain aspects of OpenGL ES and not others.

As always, any help would be appreciated

-Tariq

hiiiiiii
can u share ur code so i can help if possible.
thnks,
Alpesh

http://www.pragprog.com/titles/eband/source_code

Well here's a professional example from a book.
I attached the exact project.

I'm having problems with all textures using my G1. The textures look fine in the emulator, but when running the program on the G1(HTC Dream) I have problems.

If anyone can test the cube project attached and see if they have a texture showing up I'd appreciate it.

I tried about 4 other projects, and my own project and have the same problem with each one.


Thanks alpesh_harsoda

Note: The attached is not mine, it is an example from book "Hello, Android"

hi tariqm,

i have checked that code its running well.sry but i m not getting why its not run in htc means your mobile.
thnks,
Alpesh

It is not just a rotating white cube when you tested it on the HTC Dream?

Can anyone else verify the scene that is created when running on the HTC Dream, G1?

I still keep getting a white twirling cube. I hope it's not a hardware problem...

I've verified this on my G1. Texture is missing in the device, renders perfect in the emulator.

I have a similar problem with textures created from bitmaps loaded from resource, and mutable bitmaps that are rendered dynamically.

Is there a solution to this issue?

Thank you jjamminjim for verifying this!

I wonder why it was not mentioned more often. Seems like a BIG deal.
I'm sure some developer out there is making a 3D game is is going to find out that the texture dose not show up.
I hope it's a software issue and not something hardware related...

Can anyone else verify if the texture issue is a problem with a select few G1s or if the problem is with all G1s?

jjamminjim, I have not yet found a solution to this problem...
I was creating a 2d game, but rendering it in OpenGl for speed, but am now using the Android Graphic classes.
Hopefully this dilemma can be solved soon, before I release my game. Want it to be as quick as possible .

-TariqM

The example is bad, the textures need to have a resolution that is a power of 2 according to spec. (64x64, 128x128, etc). The texture in the example provided is 90x90. If you scale it to either 64x64 or 128x128, it works on a G1. So its not that the G1 is broken, but the emulator shouldn't have rendered the texture in the first place as its not to spec.

Cheers and good luck.

Hey bostonskipper thank you!

It works now.

I am so relieved!

Thought I was going to have to replace my G1 or something.
The problem seems so obvious, I posted in many forums and no answer.

If I may ask bostomskipper, where is this "spec" located at?

I was just following example code from the examples included in the SDK and the book.
And was following code from online OpenGL tutorials.

The OpenGL ES 1.0 spec is maintained by the Khronos group

The reference manual can be found here
http://www.khronos.org/opengles/1_X/1_0/
http://www.khronos.org/registry/gles/sp ... manual.pdf

The section you are looking for describes the parameters "width" and "height" for glTexImage2d method, page 145 as numbered by the document, page 149 as numbered by the pdf.

height must be 2^n + 2*border
width must be 2^m + 2*border
border must be 0

Hope this helps.

bostonskipper wrote:height must be 2^n + 2*border
width must be 2^m + 2*border
border must be 0

So basically height = 2^n .

bostonskipper I really appreciate all your help.

Looking and the specs now.
My 2d game is now running using OpenGl ES on my phone!

The docs at the Khronos group website are much more helpful than androids documentation on OpenGl ES.

Well, you must seek an expert idea from the people living in your vicinity, as is always easy to find the solution for technical solution after seeing it personally.
Regards,
balinese hut