PG HDRi's

[kwhitt]

Hello everyone. I have started using HDRi maps for environmental lighting with Corona. I have most of the Peter Guthrie maps and have used them often with Vray for C4D. I am noticing that an intensity of 1 is far too much for my interior scenes as everything quickly becomes burned out. I could use them with Vray at 1:1 with no problem. Any suggestion for finding a reasonable emission intensity for use with Corona? I would imagine others have used these same HDRi’s successfully and may be able to give me some pointers. Thanks, Kevin

[iacdxb]

Hi,
No idea which which version you are using, new updated version 1.1 are more polished.

try exposure -4 or -6… depends, it will work fine.

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[kwhitt]

hi iacdxb - thanks for the reply. I am using the latest build. Is it recommended that you lower the exposure value or the emission intensity? I’ll give your settings a try. Thanks again!

[Colas]

Hi, you just have to put the HDRI in the diffuse layer. Not in a light material.
Then i usually lower the exposure between -5 to -1 depends of the HDRI.

[iacdxb]

it was in diffuse. you can give try in other channels.
Yes, and reduce exposure.

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[kwhitt]

I thought the new way was to use a light material as per this video:

QUICK TIP: Introduction to HDRI in Corona Renderer for Cinema 4D

When I do it is way overexposed. Peter Guthrie’s maps all the only ones that behave this way (at least of the maps I own).

I guess what I’m asking is there a way to calibrate the HDRi so that I know I am getting accurate output from the map. Sure I a can turn it up or down, but is it physically correct?

[iacdxb]

See this… may be helpful.

Updated PG SKIES — PETER GUTHRIE

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