HDRI lighting or sky??

upshot · June 9th, 2008

I'm mostly interested in doing some HDR skydomes (since I enjoy capturing them as well). I have no idea how to use them as the exclusive lighting with mental ray? Anyone know how to do this? I tried using mr Physical Sky and adding the HDR to the background map but it doesn't seem to be actually lighting the scene...

pthomas1172 · June 9th, 2008

You have to put it in the SKY LIGHT..light..gizmo thingy

there is a slot where you drop it in then, drag it into MAT editor if you have to adjust the brightness through the RGB level

upshot · June 9th, 2008

ah I see.. so I assume I should use my low res IBL in the 'sky light' and my high res reflection map in the environment map slot... I also assume I should be turning GI on as well?

I think I'm starting to get this... Thanks!

June 9th, 2008	#1 (permalink)
upshot Senior Member Join Date: Oct 2003 Location: Ann Arbor, MI Posts: 136 Name: Jay Burlage	HDRI lighting or sky?? I'm mostly interested in doing some HDR skydomes (since I enjoy capturing them as well). I have no idea how to use them as the exclusive lighting with mental ray? Anyone know how to do this? I tried using mr Physical Sky and adding the HDR to the background map but it doesn't seem to be actually lighting the scene...

June 9th, 2008	#2 (permalink)
pthomas1172 Junior Member Join Date: Nov 2007 Location: Dallas Texas Posts: 12 Name: Patrick thomas	Re: HDRI lighting or sky?? You have to put it in the SKY LIGHT..light..gizmo thingy there is a slot where you drop it in then, drag it into MAT editor if you have to adjust the brightness through the RGB level

June 9th, 2008	#3 (permalink)
upshot Senior Member Join Date: Oct 2003 Location: Ann Arbor, MI Posts: 136 Name: Jay Burlage	Re: HDRI lighting or sky?? ah I see.. so I assume I should use my low res IBL in the 'sky light' and my high res reflection map in the environment map slot... I also assume I should be turning GI on as well? I think I'm starting to get this... Thanks!

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