Volumetrics issues

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daros
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Re: Volumetrics issues

Post by daros »

anyway we are going to try to assign that value to everything included in the fog volume... let's see what happens.
daros
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Re: Volumetrics issues

Post by daros »

wow... it seems to work. Sorry, it was difficult for me to understand the logics behind that.
fog fix_1.jpg
Thanks again dade.
daros
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Re: Volumetrics issues

Post by daros »

i love it!!!
View 03 3000x1740_1.jpg
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Sharlybg
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Re: Volumetrics issues

Post by Sharlybg »

BTW I don't see how this can be achieved in blender with few click :?
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kintuX
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Re: Volumetrics issues

Post by kintuX »

Sharlybg wrote: Wed Sep 22, 2021 7:15 pm BTW I don't see how this can be achieved in blender with few click :?
:? Why not?
daros
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Re: Volumetrics issues

Post by daros »

Hi, new issue:
This is what i get from this scene with volumetrics turned off:
water no volume_1.jpg

and this is what i get wen i turn volumetrics on, water has gone:
water and volume_1.jpg
it's a volume priority issue?

if we have the fog volume surrounding the scene set as interior volume, the walls as exterior volume, and the water as interior volume, which are the priorities which we have to assign to each volume?
We tried with fog volume set as priority 0, the walls as priority 0, and the water as 1 but the result is the same...


here the luxcore scene
https://drive.google.com/file/d/1Bz_imJ ... sp=sharing
kintuX
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Re: Volumetrics issues

Post by kintuX »

Naturally, solids have higher priority than fluids, which have higher priority than gases.

BTW
here's quick animation of camera transition from outside into fog
acasta69
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Re: Volumetrics issues

Post by acasta69 »

daros wrote: Thu Sep 23, 2021 8:21 am We tried with fog volume set as priority 0, the walls as priority 0, and the water as 1 but the result is the same...
It seems that all volumes in your scene are defined with the same ior = 1.5, so no difference between fog and water...

Code: Select all

scene.volumes.envVolume.ior = "1.5"
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daros
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Re: Volumetrics issues

Post by daros »

Thanks acasta69, sorry for the stupid error.

now a new question.

the following picture is taken with the camera outside from the fog box.
View 02 600x300_2.jpg
Why i do not see the blue sky which is set as environnment around the fog box?
Thanks again for your help.
Attachments
cameraOutOfBBox.zip
(9.17 KiB) Downloaded 134 times
daros
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Re: Volumetrics issues

Post by daros »

and one more question but i cannot upload the file today.

here is a tree with fog off:
treeno_1.jpg

and here we have a very thin fog, about 10km visibility
treeyes_1.jpg

why the shading of the tree shows up so differently?

tomorrow morning i can upload the luxcore scene.

air now is set to ior 1
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