Volume Pass and Alpha Behavior

Maxon Cinema 4D (Export script developed by abstrax, Integrated Plugin developed by aoktar)

Moderators: ChrisHekman, aoktar

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joeycamacho
Licensed Customer
Posts: 42
Joined: Sat May 24, 2014 6:30 pm

Hey Ahmet,

I've been trying to export out a separate volume pass with other light passes.
When the medium/fog is activated activated in the environment tag, the light passes and their alphas become slightly transparent where the solid object is, and the background where there are no objects become more opaque.

This also occurs on the main pass, but not the diffuse or reflection passes
Is this the correct behavior?

I'm probably missing something, but compositing these in AE is not providing the same result as the picture viewer.

I've attached some screenshots and a scene file. Please let me know if I've overlooked something.

Thank you!
Attachments
volume_pass_test.zip
(6.32 MiB) Downloaded 213 times
ies_light.jpg
lightpass_3.jpg
lightpass_2.jpg
lightpass_1.jpg
volume_pass.jpg
reflection_pass.jpg
main_beauty_pass.jpg
Freelance Motion & Graphic Designer
-----------------------
Cinema 4D R19| Win 10 Home 1803 | 4X GTX TitanX 12GB Maxwell | Intel Core i7 5930K 3.5GHz | 48 GB DDR4 -2133 RAM
joeycamacho
Licensed Customer
Posts: 42
Joined: Sat May 24, 2014 6:30 pm

Giving this a bump... Does anyone else know? Seems like devs are pretty busy!
Freelance Motion & Graphic Designer
-----------------------
Cinema 4D R19| Win 10 Home 1803 | 4X GTX TitanX 12GB Maxwell | Intel Core i7 5930K 3.5GHz | 48 GB DDR4 -2133 RAM
joeycamacho
Licensed Customer
Posts: 42
Joined: Sat May 24, 2014 6:30 pm

BUMP.
Freelance Motion & Graphic Designer
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Cinema 4D R19| Win 10 Home 1803 | 4X GTX TitanX 12GB Maxwell | Intel Core i7 5930K 3.5GHz | 48 GB DDR4 -2133 RAM
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aoktar
Octane Plugin Developer
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Joined: Tue Mar 23, 2010 8:28 pm
Location: Türkiye
Contact:

Dev is on holiday for a while. I'll try to help but possibly nothing about plugin side.
Octane For Cinema 4D developer / 3d generalist

3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
joeycamacho
Licensed Customer
Posts: 42
Joined: Sat May 24, 2014 6:30 pm

Sorry Ahmet - does that mean you can help?
Freelance Motion & Graphic Designer
-----------------------
Cinema 4D R19| Win 10 Home 1803 | 4X GTX TitanX 12GB Maxwell | Intel Core i7 5930K 3.5GHz | 48 GB DDR4 -2133 RAM
joeycamacho
Licensed Customer
Posts: 42
Joined: Sat May 24, 2014 6:30 pm

Hey Ahmet - could you please take a look at this - I'm guessing the devs that were on holidays are back now. Hopefully.
Freelance Motion & Graphic Designer
-----------------------
Cinema 4D R19| Win 10 Home 1803 | 4X GTX TitanX 12GB Maxwell | Intel Core i7 5930K 3.5GHz | 48 GB DDR4 -2133 RAM
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tschwenke
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Location: Germany
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Anyone?
http://www.thomas-schwenke.me
Houdini 20.5 || Win11 || i7 + RTX3080
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aoktar
Octane Plugin Developer
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Location: Türkiye
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What's your version? I suppose that's fine on latest builds.
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3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
JEEK
Licensed Customer
Posts: 30
Joined: Mon Jun 19, 2017 5:44 am

@aoktar

Still having the same issue on 4.02.1-R2 here.
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