Dumb question

[AJLynn]

When rendering with Vray, how do I render a pass of a single object on an alpha'ed background?

[Sketchrender]

sorry I may be picking you up wrong.

But .

if you render your object, and save out as a tga , and the options are for an alpha map to be saved as a seperate file..........

so you may be able to post product that way.

is that what you mean?

 

phil

[AJLynn]

Sorry, that phrasing was very unclear.

 

I've got a scene, I've rendered it and that took a long time already. Now I've been given a change - some things hanging on the wall. I'd like to be able to render just those objects, while they are sitting in this scene, and drop them in in Photoshop.

[Arnold Sher]

select all the objects that you do not want and in the properties click invisible to camera leaving the items that you want. It will only render your desired items with the corect lighting and you can add them in photoshop... That should do it... Altervatively you can render a region just around the items that you need and once again add it in photoshop.

 

Hope that helps...

[AJLynn]

Yeah, that would do it. Thanks. (I also just realized I could get on another computer, switch to scanline to render out matte passes with certain objects to do Photoshop selection sets, but that would be slower.)

[Christopher Nichols]

If you need it to be matted, don't do the invisible to camera thing, but set all the non rendering objects in the Vray Properties to Matte objects with an Alpha of -1.

[AJLynn]

Yes! That's what I'm looking for. Thank you. (Now I can fix my glowy parts.)

[Iain Denby]

You'll need a doctor to fix your glowing parts!

[Crazy Homeless Guy]

i used this yesterday. the -1 alpha, not glowing parts. it came in handy.