Solved: Arnold render for Houdini does not work with whitewater

Anonymous · ‎04-28-2020

Hello,

I'm following this tutorial: https://www.youtube.com/watch?v=nnujlxEoSDg

Did the same but it's time to render with arnold, the whitewater is like that:

Any idea to resolve this ? I'm workind on Houdini FX 17.5.327, I tried the same in the last Houdin version, got the same.

I tried to render with mantra and the whitewater works (but I can't have the same result as arnold with the ocean so I want to be able to fix this bug).

Thank you !

Anonymous · ‎04-29-2020

Looks that nobody has the solution. I contacted the support. Will post the answer here for people who have the same problem than me.

(Hope to find a solution)

Stephen.Blair · ‎04-29-2020

Did this tutorial use Arnold ? (I'm not going to do a tutorial)
Can you post your scene file?

// Stephen Blair
// Arnold Renderer Support

Anonymous · ‎04-29-2020

Hello yes it's with Arnold .

Here's the scene file: https://drive.google.com/open?id=19QlSkWWUObZySHhE8cGs5I69imgpcIq3

(PS: go to the frame 24 to see better the foam and cam1)

Thanks for you help !

Anonymous · ‎04-30-2020

It's not a bug in Arnold. So first of all the tutorial guy is not rendering whitewater. He is simply rendering "import whitewater (DopeI/O)" node just for your convenience go to 9.28 of the video you will see he has marked it render flag you can use "t" as a shortcut for marking render flag I guess . He is simply rendering white particles giving it an appearance of whitewater.

So what you are doing wrong, you are rendering "render null" which is not supported by Arnold default shader and which consists of whitewater as well as other stuff as per my knowledge.

Anonymous · ‎04-30-2020

Hello Stephen Blair came help me in a email. The problem was simple: I used (like the tuto) a surface shader. That was the probleme to render the whitewater I had to use a volume shader 🙂 Now it's working perfectly !