armory3d / armory3d/armory

[rendering] Volumetric fog looks significantly different when using the deferred clustered renderer compared to the forward renderer

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bug
Dominant language
C++
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Description

When using the deffered renderer, it seems you have to significantly reduce the volumetric fog amounts by quite a lot to get similar results to what you see in the forward renderer.

Deffered clustered:
![image](https://user-images.githubusercontent.com/20190653/121413934-7ca57f00-c966-11eb-9445-ea583976ad07.png)

Also deffered clustered (dividing the amount A/B by 10):
![image](https://user-images.githubusercontent.com/20190653/121414438-eb82d800-c966-11eb-9659-4f5cf84acdbc.png)

Forward clustered:
![image](https://user-images.githubusercontent.com/20190653/121414181-b4142b80-c966-11eb-919e-ceecf6ffd847.png)

Contributor guide

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Research direction

Start by reproducing the reported volumetric fog setup with both the deferred clustered and forward clustered renderers, using the linked screenshots as the comparison. Compare the results with identical fog amounts; done means equivalent settings produce comparable fog appearance in both renderers.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-graphics
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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