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Render scene with Vray Light Expression in alpha channel?

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Simon Huang
Render scene with Vray Light Expression in alpha channel?
on Dec 30, 2014 at 9:35:00 am

Hi, I have added a VRay light to a scene but have absolutely no idea how to render just the model in alpha channel. Normally you can just check "seen by camera camera off" or use a shadow catcher. However, in this case, since an EXR file has been used in the layer shader under Area Light> Light Dome> Layer, i can't seem to turn "seen by camera off" and there is no option for that.

So, is there a way i can render the model in alpha channel? Been racking my brain all day :(

Thanks so much!


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Simon Huang
Re: Render scene with Vray Light Expression in alpha channel?
on Jan 2, 2015 at 5:55:13 am

Anyone? :)


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Simon Huang
Re: Render scene with Vray Light Expression in alpha channel?
on Jan 12, 2015 at 2:04:08 am

Turning "invisible" on seemed to work abit. However, everything is invisible in the final render....


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Simon Huang
Re: Render scene with Vray Light Expression in alpha channel?
on Jan 12, 2015 at 2:05:56 am

Turning "invisible" on seemed to work abit. However, everything is invisible in the final render.... Does anyone have any ideas? There should be a way..


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