"Wet Textures" | Quadropolis

Mysterious | 2011-03-24 20:19

"Wet Textures"

Hey guys,

after a long abstinence at quadropolis and sauerbraten i´m working on some new projects at the moment.
One of them is my prefered map Nexxos. I´m using the trak5 textures and it´s gonna be a medium-sized ctf map.
But there is a little question i´m looking for an answer :

Inside the map there is a little place , where rain comes in. is there any possibility to make the textures look wet just at this spot, because i don´t want to use real water?
I think of something like the textures in Arcania : Gothic 4 , where the textures are changing with rain.
I think this video shows best what i mean http://www.youtube.com/watch?v=ACtdK9q1y04&feature=related (watch the textures on the ground)

If this is possible at Sauerbraten pls give me a reply ;)
Greetings Mysterious

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Chasester_aka_you | 2011-03-24 23:18

well its possible:

you can take all the textures that you want to look wet add a gloss to them in photoshop/gimp (if you need help with this i can lead u to a tutorial), then use the brush commands in cube to create said effect.

Video for the brush commands

chasester

Suicizer | 2011-03-24 23:24

Yes there is a way, by setting the specular-scale to a high ammount. Maybe you should take a look at the waterfall of "alloy"...

SheeEttin | 2011-03-25 03:20

Bleh. I had a nice reply typed out, but I lost it.

In essence: Particles + specular + sound effect + a bumpy normalmap = pretty good.

If you want to make it look REALLY good, try adding little ripples/raindrop impacts with a custom shader. Just Google "ripple shader". You could probably adapt one of those.

RaZgRiZ | 2011-03-25 08:12

A shader which defines an extra layer with alpha, reliant on the texture's bumpmap would come in handy really well in this case. But then again liquids are dynamic so you wouldn't raise the realism factor too high since sauer does not provide support for image rotation, or fluid dynamics in any event.

Suicizer | 2011-03-25 11:19

Since Sauerbraten doesn't support that on its own geometry, we get back to (map)models again? :P

Maybe a mapmodel wich is just a flat cube with an animated alpha-blended textrure on it, would do the trick. Like raindrops in a lake or something.

Since depthmaps are the opposed of bumpmaps in sauerbraten, If you would create an "depth-map error" on purpose (like loading the wrong depthmap), it could look like if the texture is wet (even tough most of the times it looks more like if the geometry is covered by some transparant rubber or something).

Another option would be to blend a "movie" of raindrops on the existing textured geometry, by using the moviescript (so you have a large texture wich is containing small textures of raindrops, wich are just positioned different on every small texture, wich gets generated by the moviescript. That large texture could get blended on surface).
I'm not sure tough if this combination really works...

Mysterious | 2011-03-25 14:39

First thanks for your replies , BUT

can anybody send me a tutorial , because i´m a noob at such things xD

Suicizer | 2011-03-26 10:26

Let's say the mapmodel-idea drops then :P.

I would go for the "fucked up" depth-map, since it's the easiest way to do so (even tough the less fanciest way).

A working idea!
1. Create a skybox out of watertextures, like using "waterfall" texture inside the folder "textures".

1a. Copy and paste it 6 times.

1b. Put after those 6 copied-files the skybox-tags _bk, _dn, _ft, _lf, _rt, _up.

1c. Put all 6 waterfall-textures into the "skyboxes" folder, exept the 7th (wich is the original texture), to be more logical.

2. Change the shader-setting of the needed texture into something like "bumpenvspecmapworld" (if it also has a depthmap, use
"bumpenvsecmapparallaxworld". If it also has a glowmap, use "bumpenvsecmapparallaxglowworld") and put "texture e skyboxes/waterfall" as last line for your texture (so just below "texture s path_of_specmap").

3. Use the "/recalc" command to calculate the envmap.

It should be possible to use only 1 texture as envmap, but somehow I get this error. Help would be preciated for what I'm doing wrong...

Since the envmap has some "movement" in it (so does a depthmap when fucked up) and gets changed by the bumpmap, it looks like you have some waterreflection on the texture.
The combination of using a depthmap and envmap would create a similar effect...

P.S.
How can you put images directly into your comment?

Mysterious | 2011-03-26 12:52

That´s also a question i would like to get an answer (screenshots in posts ^^)

Thx for this great instructions !
I hope it will look good.

RaZgRiZ | 2011-03-26 15:50

lol.

Chasm | 2011-03-26 19:03

Too bad we can't specify the scrolling property for each layer in a texture, otherwise you could make the specularity, and height maps scroll, to acheive a cool running water effect. sigh...

SheeEttin | 2011-03-27 03:48

Oh, that was one thing I lost in the post that didn't make it. This is entirely possible with a custom shader, and some Googling should turn up a bunch of good stuff.

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