htoa solaris Render Vars (aov) test scene

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rachid Hadj Abderrahmane asked Jun 16, '20

htoa solaris Render Vars (aov) test scene

Hi

Here is How to create renderVar (AOV) with HtoA inside Solaris

For the RAW just use the same Arnold AOV name ( built-in AOV)

For LPE refer to: Light Path Expression AOVS:https://docs.arnoldrenderer.com/display/A5ARP/Light+Path+Expression+AOVs

example for direct put: C[DSV]L and change to LPE, and so on

NB: for Depth Pass,(Z) filter normally should be set to Closest, But I'm getting black Render, so set it to Gaussian (normalized)

Hope the team can tell us How to render Cryptomatte ?

more details here: https://www.youtube.com/watch?v=DDa-0VFXz8E&feature=youtu.be

htoa_solaris_aovs.zip
htoa_solaris_lpe.zip

houdini aov solaris rendervars

htoa-solaris-rendervar.jpg (181.3 KiB)

aov.jpg (68.1 KiB)

htoa-solaris-aovs.zip (154.4 KiB)

htoa-solaris-lpe.zip (195.9 KiB)

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Answer 1 · 2020-06-26T15:53:38Z

Justus Schmidt answered Jun 26, '20

Thanks for this!! How would you render motionblur/motion vector? I've tried motion_vector, motionvector and motionVector, but it doesn't seem to be implemented yet?

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Answer 2 · 2020-06-26T22:08:59Z

rachid Hadj Abderrahmane answered Jun 26, '20

I'm not sure if this approach is correct or not, since there are no documentation or help, maybe you can ask the team for HtoA!
anyway here what I did
first add attribute to all your moving object with "v" parameter like the image below

in SOP import check Attribute and load your variable "v" like the image below:

Inside materiallibrary add add motion_vector and aov_write_rgb like image below

add renderVar for motionvector with gaussian filter

Data Type: color3f
Source name: v
Source Type: Raw
format: float3

Here is the result:

Here is a simple test Scene:
htoa_solaris_mv.zip

attr-v.jpg (38.2 KiB)

sopimport-attr.jpg (53.8 KiB)

attwrite.jpg (59.2 KiB)

layercontact.jpg (82.5 KiB)

htoa-solaris-mv.zip (187.5 KiB)

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Justus Schmidt · Jun 29, 2020 at 10:20 AM

awesome, thanks!

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Answer 3 · 2020-08-21T16:05:43Z

Kevin van den Oever answered Aug 21, '20

Is it possible through LPE or some method to get a specular roughness albedo aov?

Also, have you managed to get cryptomatte working?

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rachid Hadj Abderrahmane · Aug 23, 2020 at 03:24 PM

I'm not sure about custom aov (specular roughness albedo) but you can use aov_write_float to write that, or use some math operation in comp.
Uunfortunately cryptomatte does not seem to work at all, I've tried several setup without success!
@ Stephen Blair any idea how to setup cryptomatte with Solaris?

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Answer 4 · 2021-07-31T17:44:34Z

David Ostler answered Jul 31, '21

Did you happen to figure out how to get Cryptomatte working in solaris/HTOA?

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