Vray physical sky question

Tommy L · January 30th, 2008

Is it possible to change the disply value of the sky?

I have tried to work in LWF for an animation. I have got everything looking perfect except the sky is too bright, which means the reflections are as well. The primary and global illumination are fine, so are the materials and colours. Im using physical camera and sky. I need to just drop the value of the (burnt out ) sky and its sorted. Is this possible?

I do realise that this is not a problem that should arrise with LWF, but Im not very good at it. Just adjusting the sky value solves all my problems!

Tom.

Horhe · January 30th, 2008

Well you can ultimately use 2 vrayskies... one for illumination as a GI overide and another in the enviroment slot as the backdrop... the one in the backdrop can be churned down to make it as required for the shot.

Tommy L · January 30th, 2008

Thanks Jakub, I worked that bit out now. Problem I now have is this:
I would like to do an animated day cycle. If I animate the physical sun I get the desired change in the lighting. But how do I adjust my 'proxy' sky at the same rate?

Chad Warner · January 31st, 2008

Having just tried this, it should work....Copy your vraysky, have the original in the VRay environment slot, and put the duplicate in the Max environment slot. With the second sky, turn on "manual sun mode" and link it to your Vray Sun. Decrease the values however you want, and then you should be good to go. The Max environment sky will still change values/colors based on the sun's position, put the strength of the sky light will be less intense.

Tommy L · January 31st, 2008

Thanks Chad, works a charm!
Case closed.

January 30th, 2008	#1 (permalink)
Tommy L Veteran Member Join Date: Dec 2003 Location: chicago Age: 30 Posts: 1,974 Name: Tom Livings	Vray physical sky question Is it possible to change the disply value of the sky? I have tried to work in LWF for an animation. I have got everything looking perfect except the sky is too bright, which means the reflections are as well. The primary and global illumination are fine, so are the materials and colours. Im using physical camera and sky. I need to just drop the value of the (burnt out ) sky and its sorted. Is this possible? I do realise that this is not a problem that should arrise with LWF, but Im not very good at it. Just adjusting the sky value solves all my problems! Tom. __________________ http://thomaslivings.blogspot.com/

January 30th, 2008	#2 (permalink)
Horhe Veteran Member Join Date: Nov 2005 Location: Poland Age: 26 Posts: 1,131 Name: Jakub Gabriel	Re: Vray physical sky question Well you can ultimately use 2 vrayskies... one for illumination as a GI overide and another in the enviroment slot as the backdrop... the one in the backdrop can be churned down to make it as required for the shot. __________________ Im starting to suspect that the world is a rendering...

January 30th, 2008	#3 (permalink)
Tommy L Veteran Member Join Date: Dec 2003 Location: chicago Age: 30 Posts: 1,974 Name: Tom Livings	Re: Vray physical sky question Thanks Jakub, I worked that bit out now. Problem I now have is this: I would like to do an animated day cycle. If I animate the physical sun I get the desired change in the lighting. But how do I adjust my 'proxy' sky at the same rate? __________________ http://thomaslivings.blogspot.com/ Last edited by Tommy L; January 30th, 2008 at 07:05 PM.

January 31st, 2008	#4 (permalink)
Chad Warner Veteran Member Join Date: Jan 2003 Location: Savannah, GA Posts: 1,445 Name: Chad Warner	Re: Vray physical sky question Having just tried this, it should work....Copy your vraysky, have the original in the VRay environment slot, and put the duplicate in the Max environment slot. With the second sky, turn on "manual sun mode" and link it to your Vray Sun. Decrease the values however you want, and then you should be good to go. The Max environment sky will still change values/colors based on the sun's position, put the strength of the sky light will be less intense. __________________ _____________ Chad Warner www.bluelimestudio.com

January 31st, 2008	#5 (permalink)
Tommy L Veteran Member Join Date: Dec 2003 Location: chicago Age: 30 Posts: 1,974 Name: Tom Livings	Re: Vray physical sky question Thanks Chad, works a charm! Case closed. __________________ http://thomaslivings.blogspot.com/

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