Shader Collection - Update: Organic Lighting

[leviatan1001]

Currently, im focused on developing real life lens, photography film behaviour, and other post-process effects. I have no previous HLSL experience, so im learning atm.
I will post all shader-related here.

Well, after implementing a god rays post process, i didnt find it useful, because i dont want to apply it to the whole scene, so i started thinking in aplying it just to a texture:

Sky God Rays
http://lh6.ggpht.com/_FIwkRjgQ8DQ/TNdY-FhK1KI/AAAAAAAAAxY/gB2Fct0gtEU/29.jpg

Cross-Processing (http://en.wikipedia.org/wiki/Cross_processing)

http://lh5.ggpht.com/_FIwkRjgQ8DQ/TNjIauNSgeI/AAAAAAAAAx4/OOMyD5odjE4/30.jpg
http://lh4.ggpht.com/_FIwkRjgQ8DQ/TNjIbdHOmII/AAAAAAAAAx8/bAdBOCAgGFg/31.jpg

Bleach Bypass (http://en.wikipedia.org/wiki/Bleach_bypass)
http://lh3.ggpht.com/_FIwkRjgQ8DQ/TNjO0VKNsgI/AAAAAAAAAyE/5OeJMhzgmeA/32.jpg

HDR tonemapping
http://lh5.ggpht.com/_FIwkRjgQ8DQ/TOBvfYEfm1I/AAAAAAAAAyk/dNLseOgkLA8/38.jpg

Custom Screen Space Antialiasing
http://lh5.ggpht.com/_FIwkRjgQ8DQ/TSJi44ZX4fI/AAAAAAAAA0k/s0P6C4U2Sk4/43%20Custom%20antialiasing.jpg

Depth Based Chromatic aberration
http://lh3.ggpht.com/_FIwkRjgQ8DQ/TSTYh2grvvI/AAAAAAAAA2M/V0R1QhCDm_s/Color%20Aberration%20Unreal%20Shader%20%20accordin g%20to%20z-%20depth.jpg

http://lh6.ggpht.com/_FIwkRjgQ8DQ/TSTYh0Yu1VI/AAAAAAAAA2Q/LuwkBw2LxaA/Color%20Aberration%20Unreal%20Shader.jpg

Radial Lens Distortion
http://lh6.ggpht.com/_FIwkRjgQ8DQ/TSUFQOToD-I/AAAAAAAAA2w/hIEZ4NeoJpE/cubic%20lens%20distortion.jpg

Custom DoF

http://lh4.ggpht.com/_FIwkRjgQ8DQ/TSVbGwBHsMI/AAAAAAAAA28/bDWE7lFDBK0/custom%20dof%202.jpg

http://lh6.ggpht.com/_FIwkRjgQ8DQ/TSZ7jeueVBI/AAAAAAAAA3Q/zse12gba2cw/s1440/New%20Dof%20Algorithm.jpg

Anamorphic Lens Flares

http://lh4.ggpht.com/_FIwkRjgQ8DQ/TSivOQgWfpI/AAAAAAAAA54/1wFavJiQkDc/s1440/124.jpg

Blinn Specular Model

http://lh4.ggpht.com/_FIwkRjgQ8DQ/TS4xp-uu4KI/AAAAAAAAA6Q/qhmUfMS6r-w/s1440/new%20Blinn%20specular%20model%202.jpg

Oren-Nayar Diffuse model + Cook-Torrance Specular Model

http://dl.dropbox.com/u/16565603/shader%20collection%2001.jpg

Oren-Nayar Diffuse Model + Blinn Specular Model

http://lh6.ggpht.com/_FIwkRjgQ8DQ/TTMQr_mzXcI/AAAAAAAAA6o/5SzYSBIIpIU/oren-nayar%20blinn%202%20YES.jpg

Relief Mapping

http://lh4.ggpht.com/_FIwkRjgQ8DQ/TTXn1QQVf8I/AAAAAAAAA8A/j5RRICDF3bE/s1440/relief%20mapping%20aka%20AWESOME%20MAPPING.jpg

http://lh3.ggpht.com/_FIwkRjgQ8DQ/TTYjnaS3r6I/AAAAAAAAA8U/dYRZxk7cTrc/s1440/relief%20mapping.jpg

Dust Layer

https://lh5.googleusercontent.com/_FIwkRjgQ8DQ/TV9XDiqLYtI/AAAAAAAAA_4/-QjnHN4g900/s1440/vector%20up%20layer%2004.jpg

Fresnel Reflections

http://dl.dropbox.com/u/16565603/fresnel%20reflections%2003.jpg

https://lh3.googleusercontent.com/_FIwkRjgQ8DQ/TV9XCloV_yI/AAAAAAAAA-8/8AuF6REcvR0/s1440/vector%20up%20layer%2001%20%2B%20fresnel%20reflect ions.jpg

Ocean Waves:

https://lh4.googleusercontent.com/_FIwkRjgQ8DQ/TWWdclFw3LI/AAAAAAAABAc/WD0tjfnd61M/waves.jpg
Link (http://www.youtube.com/watch?v=rNIAZWU0fYI) Article (http://dmg3d.blogspot.com/2011/09/ocean-shader-20.html)

Hardcoded Blinn Specular Model

https://lh3.googleusercontent.com/_FIwkRjgQ8DQ/TW_qWY-eJFI/AAAAAAAABBY/uvdrZwCa_S0/s912/hardcoded%20blinn%20specular.jpg


Car Paint

http://dl.dropbox.com/u/16565603/Custom%20Car%20Paint%20Shader%2003.jpg

Skin

http://dl.dropbox.com/u/16565603/SkinHead_01.jpg

Skin in Action Video (http://www.youtube.com/watch?v=UWFZ2j_NWIo)
Comparison images and more info here (http://dmg3d.blogspot.com/)

Ocean 2.0 (wip dx9)

http://dl.dropbox.com/u/16565603/Shaders/09.2011_OceanShader_03.jpg

Cloth

http://www.davidmiranda.me/wp-content/uploads/2011/12/ClothComposite.jpg

Translucency

http://www.davidmiranda.me/wp-content/uploads/2011/12/TranslucencyComposite.jpg
http://www.davidmiranda.me/wp-content/uploads/2011/12/TranslucencyComposite_sculptures.jpg

Glass

http://www.davidmiranda.me/wp-content/uploads/2012/01/Glass_01.jpg
http://www.davidmiranda.me/wp-content/uploads/2011/12/MilkGlass.jpg


Organic Light Transmission + Convoluted reflections


http://www.youtube.com/watch?v=2DFos9qurFw

[TheDopefish]

So in this case it's only applied to the material of the skybox? :)

It looks pretty neat, and it works like light rays, right?
http://blog.forgingfire.com/promos/shine/shine1.jpg

You should make a compilation thread of your shaders and work in progress stuff, starting with the sharpening shader ;)

[leviatan1001]

So in this case it's only applied to the material of the skybox? :)

It looks pretty neat, and it works like light rays, right?


Yes, thats it.

[Independentsoul]

Good work it looks realy good I might use this idea aswell :P ! make some screenshots of diferent angles so I can see if it is view depdent indeed
btw any detail on how you made the view dependent texturing within UDK? http://lh5.ggpht.com/_FIwkRjgQ8DQ/TLfePz0uGHI/AAAAAAAAAts/dV6-Dtn4kks/s1024/soft%20light%20simulation.jpg

[foad-torfi]

Oh my god ,very very nice bravo:)

[leviatan1001]

Good work it looks realy good I might use this idea aswell :P ! make some screenshots of diferent angles so I can see if it is view depdent indeed
btw any detail on how you made the view dependent texturing within UDK? http://lh5.ggpht.com/_FIwkRjgQ8DQ/TLfePz0uGHI/AAAAAAAAAts/dV6-Dtn4kks/s1024/soft%20light%20simulation.jpg

I will tell you how its made, but once you reply my PM's :D

[TheDopefish]

Whoa, I can't believe I've never heard about Cross-processing before! Looks really neat to :D

Good job!

I'm having a hard time telling how good your bleach bypass is :(
Would you mind taking a test shot from this scene?
http://img440.imageshack.us/img440/4930/bleach01.jpg

This is my version of it with a bleach bypass made in Photoshop, and increased blutone:
http://img19.imageshack.us/img19/6783/bleach02o.jpg

And here's Independentsoul's version:
http://img9.imageshack.us/img9/6295/bleach03.jpg


Might be good to perhaps have a clamp for the brightest areas, so they don't get too overexposed... but that might be ruining the effect.

EDIT:
Oh, and I presume you use the custom node and write your own HLSL to create these effects. Would you be able to recreate them with the UDK preset nodes?

EDIT2:

Here we go with the screenshots you asked for.

GDC_FeaturesDemo with Lighthouse setup:

http://img194.imageshack.us/img194/2521/cansino.jpg

DM-Deck with Lighthouse setup:

http://img585.imageshack.us/img585/1642/fullpostprocess.jpg

DM-Deck just Bleach Bypass:

http://img813.imageshack.us/img813/1739/bleachbypass.jpg

[Independentsoul]

hehe I have an real enemy to fight with (mate) !! leviatan keep your work up !!! I love your cross processing any infos? I would share one of my post processes for it :)

[leviatan1001]

Haha, no, please, i dont have anything to do with you!! Youre the boss, i have just started with the HLSL pain. But i agree with sharing some code ;)

[Independentsoul]

hehe thanks your work is realy good for just a start!!

I sent you an udk email , reply before you test the code ,wich I sent you.

by the way take a look at my thread I made a new version of my car paint shader what do you think about it?

[leviatan1001]

Added:
Lens Distortion with chromatic aberration.
Depth based color aberration
Custom Dof function
Custom antialiasing

Edit:

Modified blur algorithm to texel based instead simple offseting. 2 z-Depth Layers to focus at certain distance:

http://lh6.ggpht.com/_FIwkRjgQ8DQ/TSZ7jeueVBI/AAAAAAAAA3Q/zse12gba2cw/s1440/New%20Dof%20Algorithm.jpg

http://lh5.ggpht.com/_FIwkRjgQ8DQ/TSaFUtgE1WI/AAAAAAAAA4I/TWRy1ZwcsWY/s1440/New%20Dof.jpg

[TheDopefish]

Cool stuff, and welcome back! :D
What's your thoughts with the DoF function? :)

[leviatan1001]

Cool stuff, and welcome back! :D
What's your thoughts with the DoF function? :)

My thoughts... better than i spected 14h ago, when i started with it xD

[TheDopefish]

My thoughts... better than i spected 14h ago, when i started with it xDOh, I meant why did you start working on a new DoF, and what's your goal with it? :)

Is it to make it quicker, or look better?

[leviatan1001]

Oh, I meant why did you start working on a new DoF, and what's your goal with it? :)

Is it to make it quicker, or look better?

It looks better than the default one and than my old one too.
Extra! Anamorphic Lens flares!

http://lh5.ggpht.com/_FIwkRjgQ8DQ/TSdkwuQ_JZI/AAAAAAAAA5M/-ykj5cY44H4/s1440/anamorphic%20lens%20flares%202.jpg

[TheDopefish]

http://599productions.com/599/Media/Anamorphic_Flare_Tests_Pic.jpg
http://www.deep-focus.com/dfweblog/images/480_AR_alien-lens-flare.jpg

Think it might be better to make the flare itself brighter, and add a glow to the source point of the flare. Something along these lines, although it might be a bit over the top ;)
http://img20.imageshack.us/img20/9428/anamorphic.jpg

[leviatan1001]

In this scene is a little bit hard to make it strionger. This effect is good for dark scenes with shiny spots. But the oil field has a dynamic sky which usually creates large bright areas, and it burns the screen :D
Anyway, i think ive found a proper light range to create the flares:

http://lh4.ggpht.com/_FIwkRjgQ8DQ/TSfquad7m7I/AAAAAAAAA5U/a7loTqbA_08/s1440/117.jpg

http://lh4.ggpht.com/_FIwkRjgQ8DQ/TSfquhyeBUI/AAAAAAAAA5Y/kwyksKupNyM/s1440/118.jpg

Thank you for the example!

[TheDopefish]

Looking good! :D

Also seeing the DoF comparision on your site, makes it easier to tell the difference between the original one and your new one.

[leviatan1001]

More flares!
Remade the whole method:

http://lh4.ggpht.com/_FIwkRjgQ8DQ/TSivOQgWfpI/AAAAAAAAA54/1wFavJiQkDc/s1440/124.jpg

http://lh3.ggpht.com/_FIwkRjgQ8DQ/TSivOW4xi5I/AAAAAAAAA58/4Q8YLvgabNs/s1440/125.jpg

http://lh3.ggpht.com/_FIwkRjgQ8DQ/TSivOmNcDOI/AAAAAAAAA6A/4PqnGnyaFZo/s1440/126.jpg

[TheDopefish]

Whoa, really cool stuff! :D
Very atmospheric with the cross-processing, vignette, film grain, dust particles and improved DoF! :D

[makke007]

When will it be released ?

[leviatan1001]

New specular model added, BLINN!

http://lh4.ggpht.com/_FIwkRjgQ8DQ/TS4xp-uu4KI/AAAAAAAAA6Q/qhmUfMS6r-w/s1440/new%20Blinn%20specular%20model%202.jpg

http://lh6.ggpht.com/_FIwkRjgQ8DQ/TS4xqFvT3SI/AAAAAAAAA6U/M5Fr14l1OGg/s1024/new%20Blinn%20specular%20model.jpg

[TheDopefish]

Looking good! Could you post from some more angles to see how that would alter it? :)

[leviatan1001]

Here is:

http://lh3.ggpht.com/_FIwkRjgQ8DQ/TS414uJGjxI/AAAAAAAAA6c/Kl0Y_MzqEDY/s1440/new%20Blinn%20specular%20model%203.jpg

As the angle between the light and the camera is closer to 180, the specular shape gets stretched.
(Overbrighted for showing ;) )

[BorisK]

ahaha dude i hate you. im sooo jealous of your work
how much industry experience do you have lol

[Lost Haven]

Looking nice , would like to see it used in a game . Is it expensive to use in a game , hopefully it doesn't cost to much on the performance side . Either way I still could run it since I got a radeon hd4870 .

It looks very close to cgi quality . Did you use a material scene in the material editor to achieve this effect .

[leviatan1001]

New Diffuse and Specular Models added!!

Oren-Nayar Diffuse Model + Cook-Torrance Specular Model

http://lh3.ggpht.com/_FIwkRjgQ8DQ/TTNA0gEli6I/AAAAAAAAA7E/GOnkSieLLc0/oren-nayar%20%2B%20cook%20torrance%2002.jpg

Oren-Nayar Diffuse Model + Blinn Specular Model

http://lh6.ggpht.com/_FIwkRjgQ8DQ/TTMQr_mzXcI/AAAAAAAAA6o/5SzYSBIIpIU/oren-nayar%20blinn%202%20YES.jpg

Comparison images in my blog ;)

[TheDopefish]

The Oren-Nayar Diffuse Model + Cook-Torrance Specular Model looks really nice! It's hard to tell how it looks with your Blinn Specular Mdeol. I wouldn't mind seeing original shader comparison between the two.

[leviatan1001]

http://lh3.ggpht.com/_FIwkRjgQ8DQ/TTSG759PN9I/AAAAAAAAA7o/vRTquXVxM28/comparison%20diffuse%20specular%20models.jpg

[leviatan1001]

Awesome Mapping, oh sorry, Relief Mapping :p

Here goes the most hard Shader of my collection. Credits goes to ATI, Nvidia, Ben Croward and Chris Schiefer for the Camera Vector x (1, -1, 1) trick.


http://lh4.ggpht.com/_FIwkRjgQ8DQ/TTXn1QQVf8I/AAAAAAAAA8A/j5RRICDF3bE/s1440/relief%20mapping%20aka%20AWESOME%20MAPPING.jpg

[leviatan1001]

Using it... awesome ... :rolleyes:

http://lh3.ggpht.com/_FIwkRjgQ8DQ/TTYjnaS3r6I/AAAAAAAAA8U/dYRZxk7cTrc/s1440/relief%20mapping.jpg

[sueds]

It'd be cool if you shared that one. I have the policarpo version but I haven't converted yet to udk. Is this run smoothly on a normal pc?

[TheDopefish]

That's pretty awesome work with the relief mapping! :D
What's the difference between parallax occlusion and relief mapping?

[glra2222]

Just wondering about the texture (the blocks of basic shapes) that you use to test relief mapping - ive seen it used in a lot of different examples - what is that texture called - did you model it yourself of did you take a picture of four real blocks?

[Xendance]

Awesome Mapping, oh sorry, Relief Mapping :p

Here goes the most hard Shader of my collection. Credits goes to ATI, Nvidia, Ben Croward and Chris Schiefer for the Camera Vector x (1, -1, 1) trick.


http://lh4.ggpht.com/_FIwkRjgQ8DQ/TTXn1QQVf8I/AAAAAAAAA8A/j5RRICDF3bE/s1440/relief%20mapping%20aka%20AWESOME%20MAPPING.jpg

How fast is the relief mapping material?

[CoffeeGrunt]

From what I understand Relief Mapping uses short range Ray-Tracing right? That can't mean it's very efficient, no matter how well you code it.

[seenooh]

That's pretty awesome work with the relief mapping! :D
What's the difference between parallax occlusion and relief mapping?
They differ algorithmatically only. Relief gets you a good result, but the Parallax Occlusion is better visually. Relief mapping is pretty expensive, and Parallax Ocllusion is much worse.

[Piranhi]

Your Blinn Specular and Relief Mapping are coming along nicely, keep up the good work.

[leviatan1001]

Hi there,
Well, relief / parallax occlusion / Steep parallax is the same. Thats what wikipedia says ;) Self shadowing can be added. At the end, one way or another, they look similar.
Parallax mapping is the worst method. I guess it is the BumpOffset mapping unreal includes.
Fast / Slow? Depends the number of samples. As always, the more samples, better quality.
Anyway, i dont see my framerate decreasing. It has 88 instructions with 50 samples.

[glra2222]

Would relief mapping be more efficient in a situation say - you use that texture on all the walls of an entire room - than if you created the same effect through modeling?

[TheDopefish]

Would relief mapping be more efficient in a situation say - you use that texture on all the walls of an entire room - than if you created the same effect through modeling?That question made me wonder, how would these handle decals, such as bullet holes?

[leviatan1001]

Would relief mapping be more efficient in a situation say - you use that texture on all the walls of an entire room - than if you created the same effect through modeling?

Well, depends the situation. A nice example, as DopeFish says, would be decals.
I have made a fast test:

http://lh6.ggpht.com/_FIwkRjgQ8DQ/TTjQDIU9LlI/AAAAAAAAA8w/dfJYigHEAZ8/s1440/parallax%20Occlusion%2001.jpg

Targeted to 'things you cant do with geometry, but dont abuse' ;)

[TheDopefish]

Oh, I meant the other way around. If there's a parallax occlusion/relief mapped material with lots of depth, how would it look if you added a normal decal ontop of it?

I guess using parallax occlusion/relief mapping for the bullet decals themselves would quickly become quite expensive :D

[Chosker]

it would look bad in regular decals of course. I have my own parallax mapping and it shows a flat decal on top of the parallaxed object, which kinda kills the whole effect.
to fix it you'd need the decal to actually be able to be parallaxed from the object below's own parallax, and if there's even a way to do such a thing it would be overly complicated

[leviatan1001]

New Stuff!
This method returns 1 on every surface wich Z is closer to 1. So, i can use that as mask to place a color.

Dust Layer

https://lh5.googleusercontent.com/_FIwkRjgQ8DQ/TV9XDiqLYtI/AAAAAAAAA_4/-QjnHN4g900/s1440/vector%20up%20layer%2004.jpg


Fresnel Reflections

http://dl.dropbox.com/u/16565603/fresnel%20reflections%2003.jpg

https://lh3.googleusercontent.com/_FIwkRjgQ8DQ/TV9XCloV_yI/AAAAAAAAA-8/8AuF6REcvR0/s1440/vector%20up%20layer%2001%20%2B%20fresnel%20reflect ions.jpg

Btw, im working again with unreal professionally! at last !

[kensoy]

Your game or whatever it is looks real good! great job! :)

[leviatan1001]

New stuff!

Ocean Waves:

https://lh4.googleusercontent.com/_FIwkRjgQ8DQ/TWWdclFw3LI/AAAAAAAABAc/WD0tjfnd61M/waves.jpg
Link (http://www.youtube.com/watch?v=rNIAZWU0fYI)

See Math behind it? :D

[Hboybowen]

lovely;) stuff

[Brexer]

About the waves, the question is, how would this look on a small patch.

You have a REALLY large patch there, with intensly huge waves, smaller waves would have less vertex to play out on, and im unsure, if its smart to use that huge amount of vertex's for such a small ocean zone (imagine a intire ocean around a island or something, frame rate killer :P).

Also, would like to see the motion w/o it being in wireframe :)

The waves seems to defi logic, ive never seen waves move like that, i know, its probably a setting :)

Anyways, good looking ocean, could use more work, and dont see this as me being a jerk, im just saying it like it is, anyone can just say "awesome" and that dont help at all i guess.

[RaPtOr_v9600]

New Stuff!
This method returns 1 on every surface wich Z is closer to 1. So, i can use that as mask to place a color.

Dust Layer

https://lh5.googleusercontent.com/_FIwkRjgQ8DQ/TV9XDiqLYtI/AAAAAAAAA_4/-QjnHN4g900/s1440/vector%20up%20layer%2004.jpg


Fresnel Reflections

http://dl.dropbox.com/u/16565603/fresnel%20reflections%2003.jpg


https://lh3.googleusercontent.com/_FIwkRjgQ8DQ/TV9XCloV_yI/AAAAAAAAA-8/8AuF6REcvR0/s1440/vector%20up%20layer%2001%20%2B%20fresnel%20reflect ions.jpg

Btw, im working again with unreal professionally! at last !


Nice man, cant say anything that is worthy, on what and with who are you working, professionally

[leviatan1001]

About the waves, the question is, how would this look on a small patch.

You have a REALLY large patch there, with intensly huge waves, smaller waves would have less vertex to play out on, and im unsure, if its smart to use that huge amount of vertex's for such a small ocean zone (imagine a intire ocean around a island or something, frame rate killer :P).

Also, would like to see the motion w/o it being in wireframe :)

The waves seems to defi logic, ive never seen waves move like that, i know, its probably a setting :)

Anyways, good looking ocean, could use more work, and dont see this as me being a jerk, im just saying it like it is, anyone can just say "awesome" and that dont help at all i guess.

Its true its mad to make large and dense meshes for this. Ive tried today the new terrain system EPIC added to the current licensed build. Its like a terrain editor but its mesh is tesselated depending on the distance to the camera. Like crytek's terrain. I guess they will add it in the next public build. It seems to work fine and maybe this could be the solution.
Anyway, the correct way for standard static meshes should be making more tesselated the sea where its close to the coast. And as distance increases, the density decreases.
Another solution for people with money, is using Dx11, hehe. I guess i will not see it until 2060 :D

[VendorX]

I'm impressed...

[leviatan1001]

New archievement: understanding and modifying source shader files :D

Hardcoded Blinn Specular Model:

https://lh3.googleusercontent.com/_FIwkRjgQ8DQ/TW_qWY-eJFI/AAAAAAAABBY/uvdrZwCa_S0/s912/hardcoded%20blinn%20specular.jpg

Just to check everything was OK, Blinn created with nodes for comparison:

https://lh4.googleusercontent.com/_FIwkRjgQ8DQ/TW_qWUkPG-I/AAAAAAAABBc/95Au07C47DI/s912/node%20created%20blinn%20specular.jpg

It seems to work :D

[TheDopefish]

I believe the lighting models might be one of the things that makes all the Unreal Engine driven games seem so similar. Sort of how you could tell which games were using the Doom 3 engine due to the shadows.

So any steps to rip that out and change it all together gets my approval! :D

[MasonThird]

Will you release your ocean shader? :)

[leviatan1001]

After a while being busy, at last i have had some free hours to work on new stuff:

Car Paint:

http://dl.dropbox.com/u/16565603/Custom%20Car%20Paint%20Shader.jpg

http://dl.dropbox.com/u/16565603/Custom%20Car%20Paint%20Shader%2002.jpg

http://dl.dropbox.com/u/16565603/Custom%20Car%20Paint%20Shader%2003.jpg

This was the reference (http://cg.cs.uni-bonn.de/aigaion2root/attachments/Kugel_BASF_Uffizi.png-60659f8eaed5bc0c8f09e886ffb49292.png)

And some examples of the power of

Cook-Torrance and some other custom stuff:

http://dl.dropbox.com/u/16565603/shader%20collection%2001.jpg

Hope you like ;)

[TheAgent]

Great stuff. The car shader is really nice to look at.

[Kyle_Katarn]

Ooh, that car shader is sexy!

[Hellclown]

So, do I pay you to use all these really pretty wonderful shaders or do I just have to ask nicely?

[glra2222]

hey leviatan, just wondering if that oren-nayar shader can be implemented without combining it with a specular shader? i've replicated the oren-nayar + cook-torrance shader successfully but if i use the oren-nayar by itself there are lots of artifacts such as pixelated black spots.

[leviatan1001]

hey leviatan, just wondering if that oren-nayar shader can be implemented without combining it with a specular shader? i've replicated the oren-nayar + cook-torrance shader successfully but if i use the oren-nayar by itself there are lots of artifacts such as pixelated black spots.

Thank you guys.
Mmm... black spots... Mines works okay. Of course you can only make the diffuse component and forget any specular form. Dont forget to connect the albedo to the customDiffuse channel.

Well, after weeks of work and experimentation, here is a wip skin:

http://dl.dropbox.com/u/16565603/SkinHead_01.jpg

http://dl.dropbox.com/u/16565603/SkinHead_02.jpg

[seenooh]

Cool. How much instructions?

[Mr.Illusive]

Very nice work. I seriously need to learn how to do this. Unfortunately, the sight of code is intimidating to me. :p

-Mr. Illusive

[Dany0]

Your work seems amazing dude! Whatever you touch turns into spectacular work of art!

[leviatan1001]

Cool. How much instructions?
Well, the number of instructions don't tell you how expensive a material is. The counts aren't correct, since hlsl code is not included

[seenooh]

So, how expensive is it in your opinion?

[Dany0]

I think he ment assembly instructions.

[leviatan1001]

Skin Shader Video (http://www.youtube.com/watch?v=UWFZ2j_NWIo) ;)

[Mr.Illusive]

Amazing work! The most realistic shader I've seen in UDK yet! I think this one even tops the Samaritan version in terms of realism. Good job!


-Mr. Illusive

[samuraiwu]

Wow!Fantasic!Would you please share some tutorials?

[seenooh]

Is this skin shader feasible for games?

[leviatan1001]

Is this skin shader feasible for games?

Yeah, its not too expensive, but i should use it just in cinematics, since you cant apreciate such kind of realism in a standard gameplay.
The thing in profesional game dev is: never make what the player cant apreciate, its a money and memory wasting :D
But im a freak, so... hehe

[the_contradiction]

hey leviatan, what was the technical name of this skin shader that you had posted on your thread title a few weeks back?

[leviatan1001]

hey leviatan, what was the technical name of this skin shader that you had posted on your thread title a few weeks back?

Do you mean sub surface scattering?

[the_contradiction]

Do you mean sub surface scattering?

hi, it wasn't sss, it was something similar to oren-nayar or cook torrance, except it was for your skin shader - a name from one of those research papers.

[online|offworld]

hey there leviathan1001, are you planning to release these shaders?

I've got a short I'm working on in blender, but I like your car and skin shader so much I might think about doing my animation as machinima in UDK if they became available...

[leviatan1001]

I have never been happy with my previous waters, so here is my best:

http://dl.dropbox.com/u/16565603/Shaders/09.2011_OceanShader_03.jpg

http://dl.dropbox.com/u/16565603/Shaders/09.2011_OceanShader_02.jpg

http://dl.dropbox.com/u/16565603/Shaders/09.2011_OceanShader_01.jpg

Still in progress. While my nvidia is still alive, Im running this madness in dx9.
Ill post a video once i finish it. I would like to add more stuff, like foam at the top of the waves, but i already reached the maximun instructions allowed in dx9 xD
The inspiration for this one was of course crysis or Just cause.

[Mr.Illusive]

Looking nice. :)

-Mr. Illusive

[Graylord]

Damn, I could really have use for your metal shaders.

[leviatan1001]

For all the people who ask me about the ocean waves, here is an Article (http://dmg3d.blogspot.com/2011/09/ocean-shader-20.html)

[ambershee]

That's a nice article - satisfies my passing interest. Much appreciated :)!

[leviatan1001]

http://dl.dropbox.com/u/16565603/Shaders/09.2011_OceanShader_04.jpg

[dcrosby]

Any "Articles" on that Car Paint Shader ? :D

[leviatan1001]

Im working on my new web page. And the ocean paper is ready for the public!
http://davidmiranda.me/

[unreal_polyneutron]

@leviatan1001 Man your works are great! Especially I like the specular ones! Very realistic and beautiful! And I guess - DX9? If so it's even greater than people expect because it brings almost the same quality as DX11 does but no so many people use DX11 hardware yet, so they would appreciate that (me too :)) So would you release your shaders/ codes etc. or it's kinda 'trade secret'?

[leviatan1001]

Using several methods learned and custom designed ones I got this master cloth shader:

Cloth

http://www.davidmiranda.me/wp-content/uploads/2011/12/ClothComposite.jpg


By tweaking parameters you can go from towel to silk looking.

[leviatan1001]

Translucency

http://www.davidmiranda.me/wp-content/uploads/2011/12/TranslucencyComposite.jpg

[ambershee]

Your translucency blows mine out of the water. I've had all manner of issues with mine, such as how to go about grabbing the right information (I pass almost everything in as parameters via script at present). I wouldn't mind having a chat about the implementation at some point (in about two weeks - I'm in Cambodia right now). I had intended to build a little Dx11 demogame that revolved around playing with lights and a decent scattering model for translucent materials (like jade) was something I have been trying to obtain! :)

[leviatan1001]

Dont get impressed! The method is completely wrong, hehe. Thickness is stored in a texture, but not in the correct way, which is explained by this diagram:


http://http.developer.nvidia.com/GPUGems/elementLinks/fig16-03.jpg

Its impossible to that in UDK. So I just rendered a local thickness map.

Anyway, some smart shots here:


http://www.davidmiranda.me/wp-content/uploads/2011/12/TranslucencyComposite_sculptures.jpg

[IllpIll]

absolutely beautiful, I would love to work with that shader for my marble sculpture models... I would hope you would make some of these available to the community in the future.

[leviatan1001]

New one:

http://www.davidmiranda.me/wp-content/uploads/2012/01/Glass_01.jpg
http://www.davidmiranda.me/wp-content/uploads/2011/12/MilkGlass.jpg

[UnWheelModeller]

Great work as always!!

Steven

[evol_X]

nice..you are unreal shader masterchief
now only if we could see a videos instead of pictures :)

[tuxmask75]

Would love to see how you set up some of the materials! especially the glass stuff!

[leviatan1001]

Organic Light Transmission + Convoluted reflections


http://www.youtube.com/watch?v=2DFos9qurFw

[aRny]

love your water scene, looking damn hot :)

[systemic]

Really nice work, Leviatan! For your anamorphic lens flare, did you create that within the lens flare editor or is that some kind of post processing effect? Thanks!

[leviatan1001]

Post process. I recommend not doing that xD

[joshua.fontany]

Just got a chance to read the whole thread.

Excellent stuff, leviatan! Really great. Shows just how far you can push UDK as a renderer.

[MortisEquilibrium]

Is it possible to post the code to do this stuff in a zip file?

[TheMetaMorphe]

Great work ! On the transmission shader did you modify the way that udk handle the shadows ?

[leviatan1001]

Great work ! On the transmission shader did you modify the way that udk handle the shadows ?

Thanks,
No, thats impossible for me :D

[TJ_MkII]

Any chance you can put tutorials up for these materials, or download links or something?

It's all very well showing off what you can achieve, but not much help to those trying to achieve it! Teach what you know o'great shader wizard!

EDIT: Just visited your site, you are an artistic genius sir. And you scripted some of these Shaders in raw HLSL? How do you even begin to learn to do that, let alone do it to achieve desired results..?!