I wasn’t thinking straight, obviously you can’t use Gigapixel as a Smart Filter only Photo AI apologies for the mistake on my part.
In light of that, and speaking of Virtual Copies allow me to offer another alternative working with Gigapixel and Lightroom.
As you know, when you send an image from Lightroom to Gigapixel you do so, by right clicking on the image and selecting the Edit In Option which automatically creates a new TIFF File if you choose either Edit a Copy with Lightroom Adjustments or Edit a Copy without Lightroom Adjustments but, not Edit Original.
Lightroom will create a new TIFF File to the right of the Original in the Film Strip with the current file name and send that file to Gigapixel, you then, apply your desired Redefine, Creativity and Texture settings for example C=2 and TX=2 and Render your image remembering or jotting down those numbers then, Exporting back to Lightroom.
Now here’s the kicker, once you’ve back in Lightroom, you can right click again on the Original Image and choose the Edit In Option select Edit a Copy with Lightroom Adjustments click OK and Lightroom will again create a new TIFF File to the left of the Original Film Strip with the current file name but, this time add a number 2 to the end, and sending that file to Gigapixel enabling, you to apply different Redefine Creativity and Texture settings before Rendering and Exporting back to Lightroom.
You can repeat this process as many times as you like and Lightroom will keep adding numbers to the files. You can also rename the files with the Creativity and Texture settings as you go, for comparison or whatever your needs.
I use this method with different Redefine settings if I want to composite parts of various Images in Photoshop.
Speaking of which, you can do a similar process in Photoshop sending various Layers to Gigapixel or Photo AI via the File Automate option again for comparison or indeed in my case compositing.
I’m afraid you can’t queue the files as you would like and hopefully Topaz implement a solution someday
I’m also afraid, this method will take longer because, you have to wait for the Rendering each time but, still it’s another option
Andy