pSSSt....

#304

thanks.

here’s a new test with a layered shader (didn’t get the mix8layer to work in 5.0.1… hints anyone?) that uses a bump map on a transparent blinn for specularity.
I also used an HDRI with Final Gathering and was able to even reduce the render time to 7 minutes 1.5 seconds :smiley:

#305

That looks much better, i don’t know about the eyes(they look to bright to me) but the rest is very good, nice work. Good to see this shader capabilities in skilled hands.

#306

thanks again! I haven’t built proper shaders for the eyes, teeth and gums yet; focussed on the skin exclusively.

The nice thing about using Final Gather is that it helps smoothing the graininess of the area light and the diffusion itself; I was able to get away with 8 samples for diffusion and 3/3 for the area light!

It’s an awesome shader!

#307

I used the SSS fast shader as my base shader and put the diffusion shader on the ambience channel. I know my model looks like a plastic doll but annyway keep up the good work with the shader !! everything done inside maya

#308

Nice look, guys!
johanflood, did you used fast sss shader from alias site?

#309

yes from alias site

#310

Hi
I didnt visit this thread for ages, and it seems there is a lot of fun here, and nice renderings indeed.
I remembred the diffusion shader and decided to play again with it, so I reloaded an old head, rendered to several passes, the last one with the sss enabled getting its calculation from the lights coming from the back. So here I’m:

PS: I’ve just seen that it’s noisy? Maybe I have to adjust my monitor.

#311

very interesting result. looks promising

#312

Hello
Does any one know how i can reduce the the inside of my model’s nostrils from being so hot through to the outside of the surface. the whole model is looking really good and realistic with this shader,FG and dirtmap but the nostrils are modelled up into the nose and that surface is creating a reallt hot light on the outside of the nostrils, the only setting that seems to work is lowering the diffusion really low but it creates artifacts that even maxed out samples cant fix

#313

Hi - does the diffusion shader work with Maya 6.1? I had it working in 6 but MR aborts when I try to use it now.

#314

nevermind - just forgot to update my rayrc file

#315

Hi!

Here is my latest image with the SSS shader!

#316

hi, just a quick query.

how do i assign the mix8layer material to an object, it seems a dumb question but when i right click the node theres no option to assign. Is this normal is there another way. Thanks in advance. Where can i also download the Rind dirtmap material for maya.

thankyou.

#317

hi there! tried the shader out! very intresting. im very happy i could actually intsall it and run it without any serious problems. and very cool that it works with FG and Global illumination. So thank you for that! Now im just having one problem im getting it to look ok, but i cant get the transparancy in it. I tried out the popsicle scene. with the diffusion for maya and the dll downloaded from the first page of this thread. when i renderd the objects they didnt show at all (now the ones with the shader anyway). and then when i installed the update wich i found later it crashed when i rendered. maybe im mising a file or something? Ive got the raytraced shadows on but it still doesnt work. odd. any ideas?

#318

I like the image… but because it looks blown out (stylistic hard lighting), it doesn’t really show the nuances that the SSS is supposed to pick up.

#319

I tried installing the shader and followed all the instructions…(though there was no diffuse.dll in the zip to be installed) and now mental ray won’t render at all even though I was using it two days ago. It always fails on startup (startup as in when I begin to render). The script editor tells me to check the maya render log, but no new information is printed in it. So basically MR is not working and I can’t get a deatiled error message on why. Everything I installed for the shader should not have a such a debilitating effect. Has anyone else had this problem?

Sorry if someone has already posted about this, but I don’t really have time to read the entire thread. Cheers!

#320

Ok, just a remainder.
Here is the link to get dll:

http://animus.brinkster.net/downloads/Diffusion.zip

http://www.cgtalk.com/attachment.php?attachmentid=55834

Thanks to francescaluce!

Hope that helps

Als

#321

Hi all!
Well, I’ll try to hold my tongue as I write this post. It’s late and all I really want is to succeed with ANY SSS shader at this point. I’ve tried SubScatter and while it has pretty good results, I’m not getting that true SSS effect you see in “The Incredibles” and “Shrek 2”. I’ve downloaded the shader pack from Alias and installed it/them and you practically have to have a college degree to figure them out (at least that’s how it is for me). And now the one you all are touting as the “it” shader for SSS - Diffusion. I’ve installed everything as they are supposed to be but when I go to render in MR, I get nothing. In my Script Editor it keeps saying // Info (Mayatomr): Aborted //. [size=2]I’ve tried Point Lights and Area Lights and Directional Lights and honestly, I’m about to give up. I don’t have the time to read all though all of these forums and pour through various others to get the answers I need. Let me show you an example of what I’m coming up with in SubScatter. Everything else is looking okay but I can’t get that “light behind the ear” thing to work. Mark Davies himself said this… [/size]
[size=2][/size]
[size=2] "This is happening as a result of the thin geometry of the ear. Our rays
fired from the light sources are returning bad distance values and
leaving
areas darker than they should be. You can try a few things:

  1. thicken the ears. this would only be to see if this is indeed the
    issue
  2. map the ‘Absorption’ parameter. this would be a greyscale painted
    map
    that isolates the ears as white. you may need a setRange node to remap
    the
    values to greater than 1." [/size]
    [size=2][/size]
    [size=2]I’m lost. I have no clue what I’m doing. I just want to achieve the effect and just move on to my next step in getting my first movie made. This is hard stuff! If anyone can please send me in the right direction, I’d really appreciate it. Thanks![/size]

[size=2]Russell Bolding[/size]
[size=2]Russelltopia Studios[/size]
[size=2]www.russelltopia.com
[/size]

#322

Sorry, maybe not what you asked for but - I prefer the misss_fast_skin shader instead. (I don’t know the answer to your problem because I switched quite a while ago.)
You really should give it another try, for instance none of this problem with the ears. I think anyone who can assemble an IKEA shelf from their instructions should be able to install and use that shader :slight_smile: provided you read the tutorials of course, there’s one by Jozvex on installing, and a couple over at Lamrug.org (sp?) the links are in that misss thread.

#323

Also, always check to make sure that things like cast shadows and visible in relfections/refractions is truned on. Its the little things that can screw you the most.