Volumetric Fog Container

[l1tay2]

I am trying to create light rays in vray. I understand how to create volumetric fog, but I do not know how to contain it to a shape.

In 3dsmax, i believe this is a called a gizmo?

How would i do this in Maya?

Thanks!

[Svetlozar Draganov]

I am trying to create light rays in vray. I understand how to create volumetric fog, but I do not know how to contain it to a shape.

In 3dsmax, i believe this is a called a gizmo?

How would i do this in Maya?

Thanks!

Use e regular geometry, set its material transparency to 100% and plug the Fog-Shader in the Volume Materials slot of Object's Shading Group.
Here is a quick example of that setup:

scene: http://ftp.chaosgroup.com/support/scenes/fog_gizmo.mb

[l1tay2]

Thanks! Is this a common method for creating light rays? Are there other solutions other than post work?

[yolov]

Yes, you can use vray environment fog with lights inside the volume to create light rays. You could go with rect lights with directionality.