NaCl OpenGL example

Question

Now that nacl is about to be on by default in chrome I'd like to try writing an opengl game. It seems that this is possible because there is a working quake port, but I can't find any documentation about this. Does anyone have a minimal example?

Bonus question: can I do any kind of networking from nacl? E.g. web sockets?

score 3 · Answer 1 · answered Aug 15 '11 at 22:57

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So far, it appears that NaCL (http://code.google.com/chrome/nativeclient/) doesn't allow you to do peer-to-peer networking, but by looking at the API you can start with this, which will enable you to work with URLS, and get a response:

http://code.google.com/chrome/nativeclient/docs/reference/pepperc/struct_p_p_b___u_r_l_loader.html

For 3D example you can look at the code here, which will at least show you what functions that were used.

http://src.chromium.org/viewvc/chrome/trunk/src/ppapi/examples/gles2/

answered Aug 15 '11 at 22:57

James Black

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Excellent, exactly what I wanted. Thanks! – Timmmm Aug 16 '11 at 10:06
Except that sadly it doesn't work. I had to change a couple of `#include`'s, and change line 219 to `video_decoder_ = new pp::VideoDecoder_Dev(*this); video_decoder_->Initialize(&configs, *context_, pp::CompletionCallback());` after which it compiles. And I changed the width/height in the new-style HTML but it never displays anything. :-/ – Timmmm Aug 16 '11 at 10:24
Hmm actually it seems the quake port isn't using OpenGL. I guess it doesn't work at the moment. – Timmmm Aug 16 '11 at 13:03
You can also look at http://src.chromium.org/viewvc/chrome/trunk/src/gpu/, especially http://src.chromium.org/viewvc/chrome/trunk/src/gpu/demos/gles2_book/ . My point in showing this was that some of the examples may be of use to you to help you find other resources. – James Black Aug 16 '11 at 20:10
Looks like you can use websockets: http://code.google.com/p/chromium/issues/detail?id=87310 is that enough? – rogerdpack Dec 27 '12 at 18:18

score 3 · Accepted Answer · edited Oct 31 '11 at 11:25

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I was trying to find the answer for this one a few days ago.

Here is a working NaCl OpenGL cube webpage

Here is the code for the sample you can compile "out of the box" like the other NaCl SDK samples:

BTW: I renamed the .nexe files to .n - to stop an annoying Chrome warning about the files.

edited Oct 31 '11 at 11:25

Sathyajith Bhat

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answered Aug 18 '11 at 10:49

Assaf Raman

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score 1 · Answer 3 · answered Oct 31 '11 at 02:31

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Here is an example of Ogre3D sample browser:

https://chrome.google.com/webstore/detail/ocpoapiejnpokdojkgjhglijajghikla

answered Oct 31 '11 at 02:31

Raman Sharma

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score 0 · Answer 4 · answered Nov 20 '12 at 20:59

As @sometimes-a-developer mentioned Ogre3D was already adapted to be used with NaCl. The only problem is that there is no easy way to build it. You can check yourself here: http://www.ogre3d.org/forums/viewtopic.php?f=4&t=66394

I'm trying to sort out that things by making Ogre3D part of naclports: https://github.com/pkukielka/naclports-ogre3d I'm also working on basic example of how to use ogre with NaCl: https://github.com/pkukielka/ogre3d-nacl-template

Port it finished and example is in progress (will be done soon). With this 2 things it should be enough to run 2-3 commands to have Ogre3D with NaCl up and running.

NaCl OpenGL example

4 Answers4