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DarkBASIC Professional Discussion / Free PS 1.1 Water Shader

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Spotaru
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Posted: 6th Jun 2007 20:21
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Here is a free PS 1.1 water shader. All media and a working DBP demo are included in download. This is my own OPEN SOURCE code. Anyone is free to use it however they please. It is also a work in progress, so any improvemants I make will be updated here. Refraction/Reflection is nearly impossible in a 1.1 shader so forget it. It's not going to happen! I am currently working on making the water more transparent.

Enjoy!

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Agent Dink
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Posted: 7th Jun 2007 00:04
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No offence intended, but what exactly is this shader supposed to do? Using a regular transparent texture would look better. It seems when I rotate and move the camera it seems to stretch and smear the water texture.

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Indecom
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Posted: 7th Jun 2007 00:27
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If this works okay i may use it instead of the regular mirror effect that i am now, which looks like turd by the way.
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Freddix
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Posted: 7th Jun 2007 00:57
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do you allow me to include it in the free: Ultimate Shader Pack ?
I'll host a new build of the pack @ www.odyssey-creators.com website

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Indecom
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Posted: 7th Jun 2007 11:19
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can you post a screen shot of what it is supposed to look like, cause i just get a black plane, although my card supports shader model 1.3.
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Spotaru
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Posted: 11th Jun 2007 20:49
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Hi guys,
I've been really busy the past few days. We had a fire at work and things have been kinda crazy. I'm sorry about the defective PS 1.1 shader. It works perfectly in all my apps. EXCEPT DBP. I should have done more testing before posting it. I will try to find out why it doesn't work correctly in DBP ASAP.

If any one is interested, I have a PS 1.4 water shader with reflections. Here is a screen shot.

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Spotaru
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Posted: 11th Jun 2007 20:55
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Here is the DBP code with shader and media included. This shader has been tested thoroughly and works in DBP 6.6

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Airslide
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Posted: 12th Jun 2007 00:13
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I suppose it looks okay for big scenes. You may want to post in JPEG next time, MS Paint will do that


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Green Gandalf
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Posted: 12th Jun 2007 00:18
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I like the PS1.4 version. Nice work. (Code could be tidied up a bit here and there, though.)

Have you got an HLSL version of your PS1.1 water shader? It would be easier to see what's wrong with it then. All I see is a uniform blue plain against a black background.
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GatorHex
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Posted: 12th Jun 2007 19:08 Edited at: 12th Jun 2007 23:40
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I'd like to get a water shader with reflection and transparancy. Needs to be fast though. I'm okay up to shader 2.0

Here's a screenshot of your 1.4 version in .jpg so ppl don't have to download that huge .bmp



It seems pretty fast, well done, but it doesn't reflect objects in the scene like the standard DBP reflection shader can do.



and a little bit of transparancy for object poking out would make it look more realistic too me thinx.



Evolveds is the best I've seen in DBP, but it's a bit too slow, yeah that does say 11 fps!



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Spotaru
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Posted: 13th Jun 2007 03:35
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@ Freddix
Yes you can use the PS1.4 shader in the Ultimate Shader Pack.
The PS 1.1 shader has a defect that I am trying to correct.

@ GG
Thanks, No I don't have a HLSL version of the 1.1 shader. I am trying to convert it now.

@ GatorHex
No Offense, but if you want it, BUILD IT. You are comparing apples with oranges. The shader was never intended to have real time reflections. Also adding transparency is not going to happen. There simply isn't enough resources left in a PS1.4 shader to do it. It already is at the limits of being able to compile in PS1.4
You are severely limited in 1.4 shaders. (number of textures, dependent reads,number and type of instructions etc.)

To everyone: I only made this shader to try to give a decent water shader to the users who don't have 2.0 capability. I don't even need it myself. I have 3.0 capability. So if you want to use it fine, if you don't, also fine. But stop comparing 1.4 with 2.0 shaders. It's like complaining that Vista operating system won't run on my old Windows 95 machine.
To anyone offended by this post, I am truly sorry.
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GatorHex
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Posted: 13th Jun 2007 14:55
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I haven't a clue about shaders, and i wasn't being critical of your work, i was just wondering is somone, like yourself, could build a perfect 2.0 water shader. Its unlikly i could do it myself, and i appreciate yours and Evolveds efforts

DinoHunter http://forum.thegamecreators.com/?m=forum_view&t=98385&b=8
CPU/GPU Benchmark http://forum.thegamecreators.com/?m=forum_view&t=101716&b=5
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Spotaru
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Posted: 21st Jun 2007 16:23 Edited at: 21st Jun 2007 16:26
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Sorry about the late post, I've been very busy lately.

@ GatorHex

My sincerest apologies to you. I didn't mean to come on so strong.
I'm not sure if everything you want in a water shader is possible in DBP. If you could use multiple shaders on the smae object at the same time it would be possible. But as far as I know, DBP only lets you use one shader at a time on a single object. I'll do some more research and see what I can come up with. Also, you are correct in saying that most of the calculations in Evolved's shader is done in the DBP program. I have done a similar set up in DBP and came up with only 17 fps. (Not Good) I'll see if I can get something better.

Meanhile I still haven't found the bug in the 1.1 shader. I'll keep working on it too.
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TinTin
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Posted: 21st Jun 2007 16:42
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I havn't a clue about shaders (Havn't even attempted to learn them yet)
I've got a few questions/ideas..
1st.. Can shaders call other shaders
if so, why not write a superfast shader for each of the following..
(Vertex Manipulation) to make waves by adjusting vertex position.
(Bump Mapping) to give smaller ripples
(Fresnel Shadding) to give angle relative transparency
(Reflection Shading) to reflect environments and objects.
Then use a water shader to call each in turn before updating the display.

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jason p sage
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Posted: 13th Jul 2007 06:04
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I want to know about the "Default DB Shader - that Mirror Looks Grand!

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Mobiius
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Posted: 13th Jul 2007 17:29
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the default db mirror shader is very slow. Its way too slow for any real use. try it and see, it eats fps like i eat kebabs!

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GatorHex
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Posted: 13th Jul 2007 17:43 Edited at: 13th Jul 2007 17:45
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I dissagree I think it's fast, in the above screen shot I was getting 120fps on a Pentium M1.5Ghz with Intel 915 Graphics, not exactly a speed machine

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Lucifer
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Posted: 15th Jul 2007 02:44
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Spotaru, wow, i love this shader, it's very fast and it looks very good, i'm having trouble getting the water to reflect my own skybox, i tried replacing the mountains.dds file with my own sky, but it doesnt work tell me, what do i need to do to make it work?


oh praise the lord, praise furry jesus
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Spotaru
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Posted: 15th Jul 2007 08:41 Edited at: 15th Jul 2007 08:43
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Open the .fx file with notepad and replace the name of the reflection texture with the name of your sky cubemap. It works for me when I change it. If that doesn't work, post your sky and I'll see if I can make it work for you.
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Lucifer
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Posted: 15th Jul 2007 15:35
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here's the sky i would like it to reflect, it would be super if you could make it work


oh praise the lord, praise furry jesus

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Spotaru
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Posted: 15th Jul 2007 15:56
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@ Lucifer

Is this a 2d or 3d game? If it's 3d are you using a skysphere instead af a skybox? If so I can change the shader to use sphere mapping instead of cube mapping. Also which version of DBP are you using?
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Lucifer
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Posted: 15th Jul 2007 16:01
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i'm using the latest version of dbp, this game is 3d, and i'm just using a skysphere


oh praise the lord, praise furry jesus
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Spotaru
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Posted: 15th Jul 2007 16:22
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Okay
I'll see what I can do. It may take me a while, I gotta go to church now. I'll try to work on it when I get back.
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Lucifer
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Posted: 17th Jul 2007 02:50
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thanks i'd really like it if you could help me make this work, even if you'd just convert the sky to a working .dds file for me


oh praise the lord, praise furry jesus
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Spotaru
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Posted: 17th Jul 2007 05:11
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Converting the sky to a .dds file is probably what I will have to do. I haven't had any luck getting the shader to work with sphere mapping. It has to do with the dependent texture read. You do not have direct access to the w coordinates in 1.4 shaders, and I can't seem to find a work around like I did using cube mapping.
I'll try to make a working cubemap out of the sky texture A.S.A.P
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Spotaru
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Posted: 17th Jul 2007 18:25 Edited at: 17th Jul 2007 18:26
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Here is a .dds file made out of your sky texture. It looks good in the cubemapper, FX composer and Dark Shader. I can't say it will look okay in your program because I can't test it. If it doesn't look good, all I can say is have a try at making it yourself. The programs I use to make cube maps are HDR Shop version 1 and ATI Cubemap Generator. Both are fairly easy to learn and both are free.
You can get the cubemapper from ATI and for HDR Shop just search for in on the web. Also you may need microsofts texture tool (available in the Direct X SDK) for changing the texture format.
Good luck and if you have any questions I'll try to answer them.

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Lucifer
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Posted: 17th Jul 2007 20:10
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thanks for the help, this works perfectly and looks very good


oh praise the lord, praise furry jesus
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Juso
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Posted: 19th Jul 2007 17:10
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TGC should arrange a competition to build a perfect 2.0 water shader to us who cant program with shaders.
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