VrayHairNextMTL compositing to beauty

[thomas_drenth]

Hi all,

For a project I need to use the VrayhairNextMTL which looks great in my render. The issue is come across is in the composite. I separate all my AOVs and comp them back in Fusion. Now I already read to set my Diffuse amount to 1 to get the diffuse color in my diffuse AOV, but I don't get any data in my Raw GI or other AOVs. The hairs are on top of geometry with a ALSurfaceMtl which also only shows up in the SSS AOV which should be correct. What am I missing to properly composite my AOVs back to the beauty pass?

Please let me know and thanks in advance!

[vladimir_krastev]

Hi everything without the diffuse component of the VRayHairNextMtl goes into specular and reflection. The diffuse component goes into lighting and GI.
The diffuse amount blends between the two. If you have your diffuse amount to 1 you should be getting information in your GI/RawGI render elements. If you have the diffuse amount to 0 you should be getting info in the specular/reflection render elements.
I tested this on my end and it works as explained.

[thomas_drenth]

Thank you for responding. If is set the diffuse amount to 0 I get the data in here but it still won't match the beauty render. And if I set the diffuse amount to 0 I don't get any data in the raw reflection pass. I do get it in the regular reflection pass though.
I do get the data in the raw reflection if the regular reflection pass is also present. Otherwise it won't show. Odd but it does the trick.