G-buffer passes for comping

[sany]

OK first time I've tried rendering passes out from Vray and getting stuck.

have searched forum but can someone spare two mins to explain or refer me to a topic dealing with this?

Basically used max scanline with render elements till now and wondered how I can achieve the same kind of result:

I have a scene with no direct lighting other than an omni with only specular checked, and want to render out a defuse pass self illumination pass and Z-Depth.

is there anything I should make sure I'm doing in order for the specular and Self illuminated passes not to render black and for the Z-depth not to be blotchy around fine detailed geometry?

so far all wanted passes are ticked in g-buffer save separate g-buffer passes separately checked.

I'm however not using Vray materials will this affect the outcome?

[panthon]

Hello!

You must use vray materials in order to avoid black renders of elements. Try rendering to RPF files, checking the channels u want to render, and then use Combustion or After effects to import the footage. Then, you can apply 3D POST filters, one of them being Z-Depth. This method, however, has its drawbacks because 3d post filters are not accurate at all. So u may consider third party plugins like LENSCARE, which can extract a nicer result from your z-depth directly from vray. You can even animate the depth of field to achieve interesting results too.

If you need to composite different passes, let´s say, diffuse, reflections, and global illumination, follow the instructions in the members restricted help area. There u can find helpful info about how the layers must be composited in order to get a similar result to RGB color render (the usual straight render). Basically it´s a combination of ADD and MULTIPLY blending modes.

Cheers!

[sany]

Thanks Panthon will check members area!

regarding DOF currently using x-dof but was worried as to wether it works with the Vray Frame buffer.