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Topic Starter Topic: A water shader.
Ganemi
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PostPosted: 05-01-2005 08:07 AM           Profile Send private message  E-mail  Edit post Reply with quote


Has anyone ever tried applying the shader for the ctf flags to water?

That would like...make it look wavy, instead of flat. Ofcourse, I dunno how I would go about that, since I don't make maps n' stuff.
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obsidian
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PostPosted: 05-01-2005 07:56 PM           Profile Send private message  E-mail  Edit post Reply with quote


You need to make your own version of a water shader. Some of the default Q3 shaders already make use of this so you may be able to modify one to make your own. Just make sure that you create a new shader name to prevent overwriting of default Q3 shaders.

As always, read the manual, it's full of shader goodness. More information on the specific directive you need here:
http://shaderlab.com/q3map2/shader_manu ... rmvertexes



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Ganemi
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PostPosted: 05-01-2005 08:35 PM           Profile Send private message  E-mail  Edit post Reply with quote


Thanks. : D But I'm not really looking for anything, really, since I'm not making a map, or really care too much for the water effects. Its just an idea that I realized while...exiting Quake.

Heres a GIF, just for fun.
Image
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o'dium
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PostPosted: 05-02-2005 08:52 AM           Profile   Send private message  E-mail  Edit post Reply with quote


It only looks good when you have a large tess size, however, having a large tess size means that the polycount of the water jumps VERY high, and so its quite expensive. Not expensive on new systems maybe, but on old ones, its quite a hit.
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nyxs-uk
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PostPosted: 05-05-2005 01:12 AM           Profile Send private message  E-mail  Edit post Reply with quote


you could also modify the flesh wall texture shader to do this.
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o'dium
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PostPosted: 05-06-2005 10:45 AM           Profile   Send private message  E-mail  Edit post Reply with quote


nyxs-uk wrote:
you could also modify the flesh wall texture shader to do this.


Nobody is talking about not being able to do it, its a simpel deform vertex shader, very easy to do. Its the problem of whether its worth the hit, because while it can look ok, its not THAT great looking, and it only comes into its own when you use a very large tess size. Upping the tess size will add more and more polies, hundreds of them, just for water. When you have a small surface this is fine but on a big one? Big hit.

Of course, in Q3's old levels with tis old low detail models, it wont hut TOO much to up the polycount here.
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Ganemi
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PostPosted: 05-06-2005 12:44 PM           Profile Send private message  E-mail  Edit post Reply with quote


Hmmmm...you know...theres this one map called quatrix. Or, forget that. Q3dm0. There is a mirror right where you spawn. How is that reflection done?
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$NulL
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PostPosted: 05-06-2005 02:08 PM           Profile Send private message  E-mail  Edit post Reply with quote


Ganemi wrote:
Hmmmm...you know...theres this one map called quatrix. Or, forget that. Q3dm0. There is a mirror right where you spawn. How is that reflection done?


This should get you started,

http://fps.brainerd.net/portals.htm
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o'dium
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PostPosted: 05-07-2005 01:05 AM           Profile   Send private message  E-mail  Edit post Reply with quote


Mirrors in qukae 3 are very poor TBH, they are true mirrors and lack any sort of "fun". You either have your basic mirror, or, your basic mirror. You cant have them transparent, you cant have them warping and stuff, because they are not render to texture mirrors. This means for things like water, they are pretty much uselss.

The best way to do it is a cube map, but Quake 3 wont allow cube maps on surfaces will it? Only Envmaps I thought? If you can do cubemaps, use one of those. Thats the best trick. If you cant, then you gotta settle for an envmap.
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Survivor
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PostPosted: 05-07-2005 02:41 AM           Profile Send private message  E-mail  Edit post Reply with quote


I remember a map but not the name that had a waterreflection. Was alongside a building and it even had realtime sky reflection i think.
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megaman
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PostPosted: 05-07-2005 08:27 PM           Profile Send private message  E-mail  Edit post Reply with quote


Image

just rtcw/q3 mirror + shader

edit: no lvlshot / -2 ?????
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