Billowy Cloud
Film/TV

This scene file shows how to create a simple billowy cloud, including two render setups:

  • An ambient occlusion volume is generated to speed up rendering without using any ray-bounces inside the cloud.
  • While the more realistic method is to enable ray-bounces inside the cloud.

(3 responses)

Asset Type
Scene File | HIP
Published
Nov. 3, 2023
Terms of Use
Standard License
Created in
Houdini 20
Categories
Clouds
DOWNLOAD [207.7 KB]

CREATED BY

ati
ATTILA TOROK

Attila Torok is a London based FX TD working for SideFX. He has started out as a SideFX internship student after which he worked for Double Negative on projects like The Hunger Games: Catching Fire, Godzilla. Before coming back to SideFX he spent 4 years at ILM, where next to a list of movies like Doctor Strange, Avengers: Infinity War, Ready Player One, Star Wars: The Rise of Skywalker, he was building and maintaining tools for particle simulations, deformable and tearable rigid body simulations and for pyro used throughout the company.

More from Attila Torok

COMMENTS

  • eddishin 1 year ago  | 

    Thank you, Attila Torok.

  • localstarlight 1 year ago  | 

    When I try to render the ambient occlusion version, the cloud is basically just pure white, looks totally blown out, and now adjustment of the lighting seems to make any difference.

  • ati 1 year ago  | 

    Make sure you are displaying through ACES. (Edit -> OCIO Settings...)
    Also on the pyro shader (/obj/simple/cloud_occlusion/materiallibrary1/karmabakedcloudmaterial1/kma_pyroshader1) try to lower the Intensity Scale parameter on the Scatter tab

    Let me know if that helps

  • DrewLin 8 months, 1 week ago  | 

    thank you very much for the file!!

  • dennisvolkerts 7 months, 2 weeks ago  | 

    nope, got the same with aces and scatter intensity...

    I myself realy want to get this invert occlusion look in my render. But I dont get this... How to do this with this occlusion node or even with setting it at 32 samples.
    where is this key? on your example... I understand its different on others

  • dennisvolkerts 7 months, 2 weeks ago  | 

    Mantra?

Please log in to leave a comment.