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Things to fix:

• Fix the file path in the Alembic_In node to a proper relative one.
• Fix bug in DlSettings UI where the primary layer is drawn as selected, but the rest of the UI (i.e. multi-light) is not.
• Revise rendered look - with proper colour management, things look washed and dull.
• Re-do the multi-layers image with a layout more like the one in the 3dfm multi-light page, with proper layer naming.
• Estimate the overhead of rendering the multi-light image.
• Should implement "Environment" item in Multi-Light list in Katana.
• Should add the "Display All Lights" toggle under the Multi-Light list.
• Should add the "Visible to Camera" attribute on area lights so we can control if the light box itself is visible in the rendered image.

In 3Delight Display, display the contact sheet by double-click the layers icon in the thumbnail view Thumbnail View or by choosing View → Contact Sheet.

All rendered layers are shown. You can see one layer per entry picked in the Multi-light list, in addition to the primary RGBA layer. Pick any layer to display it in full size by clicking on it. You can also use the page up and page down keys to cycle through the layers.  

Select the primary RGBA layer to continue.

In KATANA, double-click on the GafferThree node.

, which is just above the DlSettings node. In the parameters section, unfold the rig node to display all three lights in the scene. Note their current intensity values.

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Drag one of the Luminosity sliders; you will see the rendered image in 3Delight Display will conform to the modified intensity.

Also notice that the intensity values of the light(s) in KATANA will change accordingly.

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