Proper & realistic moving water:

[Bikerdude]

Im working on updating a map atm and one of the tasks was to try and get thr water to flow realistically. We have a moving waster texture and two args to make moving waves (shderParm5 and 6).

 

But in still is very basic, does anyone know if we can import the water from thwe rescent Thief gold texture pack by gecko..?

[Sotha]

Nope... But after seeing Arcturus' work on animated stuff, I wonder if one could create blender liquid animated waters.

[Bikerdude]

@Arcturus, can you help..?

[nbohr1more]

Did you try Rich_is_Bored's water?

 

http://forums.thedarkmod.com/topic/12574-making-water-darker/page__view__findpost__p__283652

 

You might improve it by adding a transparent cubemap (haven't tested it myself yet).

[Arcturus]

Thief 2 water is using multiple texture frames. This method hasn't been used before in Darkmod, at least I haven't seen it. I'm actually doing some tests with rich_is_bored's method. I'm making my own animated water texture in Blender right now. But in the meanwhile I would try the reflective water like in the grass test. Maybe it's not that resource consuming as you think. There are 2 layers:

 

a) Swimable water entity with a reflective texture on top:

 

reflective_water
{
noshadows
noimpact
nonsolid
sort Underwater
{
blend	blend
mirrorRenderMap	128	128

translate	0.5, 0.5
scale		0.5, 0.5
}
}

 

Refractive water - a single patch slightly above water with this texture (nonsolid):

 

refractive_water
{

noshadows
noimpact
nonsolid

{
	program		heatHaze.vfp
	vertexParm	0	time * 0.1 , time * 0 // scroll
	vertexParm	1	4 //magnitude
	fragmentMap	0	 _currentRender
	fragmentMap	1	textures\water_source\water_green_local.tga
}
}

[Skaruts]

Nope... But after seeing Arcturus' work on animated stuff, I wonder if one could create blender liquid animated waters.

 

Would love to see how that would turn out.

[Arcturus]

If you mean by that displaced geometry then it would require loooots of bones and tris to look right. Modern games use displacement maps and tessellation for that.

@Rich_Is_Bored if you read this, how do you make heat haze effect with multiple normalmaps? You said here that you tried it. I want to use large images so combining them into strip doesn't make sense.

[Bikerdude]

Would love to see how that would turn out.

a) Swimable water entity with a reflective texture on top:

 

reflective_water
{
noshadows
noimpact
nonsolid
sort Underwater
{
blend	blend
mirrorRenderMap	128	128

translate	0.5, 0.5
scale		0.5, 0.5
}
}

 

Refractive water - a single patch slightly above water with this texture (nonsolid):

 

refractive_water
{

noshadows
noimpact
nonsolid

{
	program		heatHaze.vfp
	vertexParm	0	time * 0.1 , time * 0 // scroll
	vertexParm	1	4 //magnitude
	fragmentMap	0	 _currentRender
	fragmentMap	1	textures\water_source\water_green_local.tga
}
}

 

Testing now... brb

[Bikerdude]

hmm, nearest I can come up with is it looks like moving tin-foil.

 

Also when the player jumps in its not water.

[Arcturus]

Patch on top needs to be nonsolid. Do you have anything in the scene to reflect? Post a screenshot.

[Bikerdude]

yep -

 

 

 

 

getting weird magnified reflections and even after setting the patch to non-solid I still have no water sounds etc.

[rich_is_bored]

@Arcturus

 

You don't have to combine an image sequence into a strip. Use the same technique discussed here....

 

http://www.doom3world.org/phpbb2/viewtopic.php?t=20563

 

... but call the heathaze shader in each stage instead.

[Arcturus]

@ Bikerdude. Remember that swimable water has to be made the same way as always, except with mirror at the top. Judging from the screenshot it looks as expected. If you're not happy with the result you can always adjust the scroll and magnitude values in the material. Also the material uses stock TDM normalmap textures\water_source\water_green_local.tga. You can replace it with any other normalmap, like rocks for example.

 

@ Rich, you mean the whole shader, like this?

 

water
{
{
	if ( (time * 24) % 23 == 0 )
	program		heatHaze.vfp
	vertexParm	0	time * 0 , time * 0 // scroll
	vertexParm	1	4 //magnitude
	fragmentMap	0	 _currentRender
	fragmentMap	1	textures/water/water0001.tga
}
{
	if ( (time * 24) % 23 == 0 )
	program		heatHaze.vfp
	vertexParm	0	time * 0, time * 0 // scroll
	vertexParm	1	4 //magnitude
	fragmentMap	0	 _currentRender
	fragmentMap	1	textures/water/water0002.tga
}
}

 

I tried different things yesterday without result.

[Bikerdude]

@Arc, can you have a look at my yesy map and tell me where Im going wrong..?

 

water.zip.txt

[Arcturus]

Post also your custom materials.

[Bikerdude]

I reattached a zip of all the files, see above.

[Flanders]

Here is an old thread, same subject

 

http://forums.thedarkmod.com/topic/12574-making-water-darker/

[Arcturus]

I reattached a zip of all the files, see above.

I'll look into it tomorrow.

[Bikerdude]

Here is an old thread, same subject

Ah cool, looking now...[edit] never mind all the file links are dead.

[Arcturus]

http://www.speedysha...20114.02.08.zip

 

@ Bikerdude, I rescaled and rotated the refractive texture, changed speed and magnitude and added another layer that is visible from the other side. Reflection doesn't work well with player model visible. I created a nodraw model for player (head is still visiblle). I'm sure there are better ways to turn it off. Water entity has to have caulk on sides rather than nodraw, otherwise it didn't work for me. Anyway, this water doesn't look good in that small brightly lit room. Pool needs to be deeper to make the reflection realistic:

 

http://www.youtube.com/watch?v=VDwTGL590zA&feature=youtu.be

[Bikerdude]

Smashing thanks mister, I don't suppose you could make the top reflective layer partially transparent..? and dampen down the reflectiveness by making it darker..?

[Arcturus]

I don't know how to do it. Cubemaps can be transparent but they don't look as good as real reflection. I also didn't say that I had to delete reflection on the wall behind the waterfall. Mirrors that "see" each other cause unwanted effects. Also it's not visible on the video but I modified uv map so that water turns properly:

 

 

[nbohr1more]

You can set alpha parm on mirror render map. I will tinker with this. When I get a chance.

[Flanders]

When its dark outside and the water is flowing you dont really see surrounding trees and such in the water. You could do with a strong specular map to reflect lights instead of a cubemap. Then its easier to make it transparent.

[Arcturus]

Here's a Thief like animated water: