VRAY and VRAY RT - different HDRI handling

[Mnietek2707]

I discovered some strange differences between Vray and Vray RT.
I mean handling multiplier and gamma of Vray HDRI.
Please see image.

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sorry for my English

[Dariusz Makowski (Dadal)]

Could it be that RT is using 8 bit HDRI and Production 32 bit? Did u check ur RT settings?

[Mnietek2707]

I'm using RT in CPU mode - so I can't change texture depth.
Also why there is no differences when multiplier and gamma are changed separately (when one of those parameters are left to defaults)?
When both of them are changed problem arrives.

[Dariusz Makowski (Dadal)]

What version of vray are you using?

[Mnietek2707]

Vray 2.30.01

[3LP]

I had a similar problem few months ago

http://www.chaosgroup.com/forums/vbu...ighlight=gamma

Did you change any of the gamma correction and multiplier parameters of the HDRI? There is a known issue where the RT engine performs the multiplier and gamma corrections in reverse order compared to the production renderer.

Best regards,
Vlado

Stan

[kagemaru]

http://www.chaosgroup.com/forums/vbu...th-differently

I reported the same bug some months ago. I think i'll be fixed anytime soon since vlado is aware of this.

[vlado]

This is fixed already for the nightly builds and the upcoming service pack.

Best regards,
Vlado