GLSL Shaders

What's the best way to go about implementing GLSL shaders with the Warsow source?

Do they need to be hardcoded in r_program.c or can they be loaded from the game directory? I'm having trouble understanding how it works, when I've used GLSL before it was with the source engine and it was a simple case of compiling the shader and using it as a material. It appears to be more complex within Warsow. Any help appreciated, thanks.

Hold on... GLSL is opengl afaik; the source engine in opengl isn't out yet?

It uses HLSL, but as far as I understand it's basically the same thing? But I think the Source Shader Editor's custom code allows you to import GLSL as well.

In Warsow, all shaders are stored as constant strings in r_program.c

Each shader can have a number of permutations which are controlled by various bitflags, which are then converted into GLSL preprocessor #defines

It should be fairly simple to implment an external loader for GLSL shaders but I wanted to keep them hardcoded for maliciious reasons :P

I'm a little confused here, from the GLSL shaders in r_program it appears to use vertex shaders and fragment shaders. I'm trying to apply a post process effect to the whole screen (as if it was one 2d flat image), excluding the HUD/crosshair. How should I go about doing this?

Edit: From what I remember (from HLSL), it's something about rendering the full screen to a quad and applying the effect to that? No idea how I'd go about doing this though. Is there anything in place already to make it simpler?
(updated 2012-09-10 23:02:31)

No, there's no builtin framework for that. You'll have to exactly the way you described: render the screen to a framebuffer with texture attached and then render a quad with your special fx applied (utilizing your custom program from r_program.c)

Alright, thanks a lot I'll give it a go.

Make sure to keep us updated on your work. :D

I'm still having difficulty with this. I sort of understand the general process and I've read up about some shaders and opengl etc but I haven't been able to get it to work myself.

Is someone willing to help out with this? I think I've given it the best attempt I can and I don't seem to be getting anywhere. I don't really have a background in coding and this specific task isn't the main part of the project I'm working on, so really I'm looking for a quick solution.

Or maybe if someone can describe the process in a specific way (what/where things would need to be added) so I have a better idea?

Thanks for any help & the help so far.

I've been doing a little work with GLSL in the Qfusion engine. I'll be around this weekend in #warsow.na on quakenet if you need a second pair of eyes.

#warsow at irc.quakenet.org was the best way to connect with the developers.
(updated 2012-09-28 21:27:30)

adem wrote:
#warsow at irc.quakenet.org is the best way to connect with the developers.

Not really.. no devs left there :]

fixed:

adem wrote:
#warsow at irc.quakenet.org was the best way to connect with the developers.

(updated 2012-09-28 21:28:12)