question

Ciro Cardoso avatar image
Ciro Cardoso asked ·

Why my HDRI looks different with Arnold?

I am trying to create a LookDev scene that contains 3 renderes - Corona, Vray and Arnold. The main idea is to produce the same material for different renderers.


My setup at the moment is a HDRI map with a Physical Camera. I use the Physical camera to tweak the exposure. While doing this I noticed a massive difference between Corona to Arnold and even with Vray.


My Corona Render



My Vray render


And finally Arnold



As you can see there is a massive difference between Corona/Vray to Arnold and I am not sure why. I am using the 3ds Max bitmap for all the examples.


Here is the HDRI map

3ds maxhdr
corona.jpg (156.8 KiB)
vray.jpg (280.3 KiB)
arnold.jpg (406.6 KiB)
hdri.png (906.2 KiB)
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Max Tarpini avatar image
Max Tarpini answered ·

The Arnold one looks the correct one :) looking at the hdr map .. from where it should come that blue/cyan tint (having the original antwerp_night.hdr map (from aversis) even making it ldr there's nothing blue/cyan there.. grey is grey etc) ?

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Ciro Cardoso avatar image
Ciro Cardoso answered ·

I agree. Really weird why Corona and Vray react this way, I was curious to understand if perhaps Arnold is doing some colour management behind scenes? But I tested another HDRI from 3DCollective and there was little change, although Arnold looks better and has better shadows.


Do you think that Corona\Vray are doing some colour correction in the back? There is a green light on the right side, but isnºt that strong that fills the entire scene with a green tint.

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