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Topics - monitorhero

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I need help / Is Corona clamping GI?
« on: 2018-10-24, 09:02:11 »
Hey guys,

I read here that Corona is pretty heavily clamping GI rays. Is that still the case and can we prevent this?

https://forums.chaosgroup.com/forum/v-ray-for-3ds-max-forums/v-ray-for-3ds-max-take-5-off-topic/70835-fstorm-render/page4?88929-Fstorm-render=

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I need help / Trying to understand Fresnel IOR
« on: 2018-10-19, 07:33:06 »
Hello guys,

since I am new to Corona I would like to ask about a few things:

https://coronarenderer.freshdesk.com/support/solutions/articles/5000515622-how-to-set-up-realistic-glass-metal-materials

Here for a chrome material an IOR value of 32 is suggested. I never saw IOR values like this. Isn't that physically inaccurate? Where do I get the correct values from?

Also if I have a plastic I use an IOR of 1.52. Do I still need to set the reflection level to 1? Or how does the Reflection Level correspond to the Fresnel IOR?

On this site https://pixelandpoly.com/ior.html an IOR value for Chromium is 2.970


Thanks in advance

monitorhero

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