Page 1 of 2 12 LastLast
Results 1 to 15 of 23

Thread: Creating a subsurface scattering node from scratch

  1. #1
    Registered User
    Join Date
    Jul 2014
    Location
    Socal
    Posts
    131

    Creating a subsurface scattering node from scratch

    Below are 3 videos showing how to create a subsurface scattering node from scratch.

    The first is an overview of how the node was created, and how to use bent normals.
    The others are part one and two of constructing the subsurface scattering node from start to finish.

    Had some trouble with Vimeo today. I think they are doing a net neutrality protest thing. It was ultimately confusing. Hope I got these in the right order, so just bear with me.

    1
    https://vimeo.com/105806341
    2
    https://vimeo.com/105805351

    3
    https://vimeo.com/105806962

  2. #2
    Banned OnlineRender's Avatar
    Join Date
    Dec 2008
    Location
    Glasgow , Scotland , UK
    Posts
    6,268
    ty & shared!

  3. #3
    Registered User
    Join Date
    Jul 2014
    Location
    Socal
    Posts
    131
    Once again, the nodes library. I do believe the latest build also has the bend_normals node mentioned in the vidoes.


    http://www.squirreldome.com/download/nodes.zip



    Name File Size Created
    -----------------------------------------------------------------------
    Arch.nodes
    Average normal.nodes
    GLobal_Ilumination_Lambert_Shader.nodes
    Lerp normal.nodes
    Occlude.nodes
    Occlude_and_radiosity.nodes
    Path_Tracer_With_Reflectivity_2.nodes
    RandomNormal2.nodes
    Reflect_Normal.nodes
    Smoothstep.nodes
    Smoothstep_Zero_to_one.nodes
    Sqrt.nodes

  4. #4
    Medical Animator mummyman's Avatar
    Join Date
    Aug 2009
    Location
    Connecticut
    Posts
    932
    Wow... great tutorials! I'm still looking for the bend_normals node referenced in the vids. It's not in this latest .zip. Thanks for the explainations!

  5. #5
    Wow! These are incredible, Dan. I reached my limits with what Sigma 2 can do for SSS. These videos are a god send. I'll just need to spend some time to review these more in-depth. Thank you!
    Gary Chike

  6. #6
    pass:sword OFF's Avatar
    Join Date
    Feb 2003
    Location
    Russia
    Posts
    858
    It's great! Almost real time SSS ))

  7. #7
    Super Member 3djock's Avatar
    Join Date
    Nov 2004
    Location
    Southern Fried North Carolina
    Posts
    307
    Quote Originally Posted by mummyman View Post
    Wow... great tutorials! I'm still looking for the bend_normals node referenced in the vids. It's not in this latest .zip. Thanks for the explainations!
    Same here..

  8. #8
    Super Member inkpen3d's Avatar
    Join Date
    Jun 2003
    Location
    amersham, Buckinghamshire, UK
    Posts
    771
    Very interesting set of tutorials Dan - thanks for all your time and effort making them. I would like to explore further, but as others have said, no bend_normals node in the library zip file.
    iemedia solutions:
    Web Site
    YouTube Channel
    Scavengers SciFi novel:
    Amazon UK
    Amazon USA

  9. #9
    Registered User
    Join Date
    Jul 2014
    Location
    Socal
    Posts
    131
    Thanks. I have updated the zip archive at http://www.squirreldome.com/download/nodes.zip

  10. #10

  11. #11
    Super Member inkpen3d's Avatar
    Join Date
    Jun 2003
    Location
    amersham, Buckinghamshire, UK
    Posts
    771
    Excellent - thanks Dan!
    iemedia solutions:
    Web Site
    YouTube Channel
    Scavengers SciFi novel:
    Amazon UK
    Amazon USA

  12. #12
    Super Member 3djock's Avatar
    Join Date
    Nov 2004
    Location
    Southern Fried North Carolina
    Posts
    307
    Okay stupid question, where do you put these nodes? Usually they come as a plugin..

  13. #13
    Registered User
    Join Date
    Jul 2014
    Location
    Socal
    Posts
    131
    You don't need to "put" them anywhere. Put them anywhere and import them into the node editor as you need them. Just right click and select "Import node"

  14. #14
    Super Member 3djock's Avatar
    Join Date
    Nov 2004
    Location
    Southern Fried North Carolina
    Posts
    307
    Quote Originally Posted by Dan_Ritchie View Post
    You don't need to "put" them anywhere. Put them anywhere and import them into the node editor as you need them. Just right click and select "Import node"
    Thanks Dan appreciate it I did not know that..

  15. #15
    ManFrog johnliebler's Avatar
    Join Date
    Jul 2003
    Location
    Guilford, Connecticut
    Posts
    172
    Thanks for the nodes, and the tutorials Dan!

    I finally got a chance to take these node setups out for a spin, and here's what I was able to get:

    Click image for larger version. 

Name:	CAS9_sssTest.jpg 
Views:	211 
Size:	55.6 KB 
ID:	124327

    I used a hybrid approach of the different methods in the tutorials. One thing I discovered is that you can use a directional light (I'm using the stock Dome light here) by plugging "World Forward" from the light's Item Info node into the "Reference World Position" input of the Bend Normals node. Also, if you use a soft shadow raytraced light, you can get shadows if you set the shadow color to grey, instead of black. The renders did have a lot of noise, but I used Neat video to remove the noise in After Effects.

    And here's how it looks animated. After a bit of post processing.

    https://dl.dropboxusercontent.com/u/...9_SSStest1.mp4

Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •