This video shows how to use to use the Line shader with the UV Projection shader and the Standard Volume shader to build up some volumetric models.
https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_user_guide_ac_texture_shaders_ac_line_html
https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_core_ac_standard_volume_html
https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_core_ac_uv_projection_html
#shading #rendering
