I don't think the image Dave posted is lit. It looks like a dry run for shooting the things glomming onto Kirk -- which as we know would have been shot with the V'ger sensors being pulled OFF Shatner and then printed in reverse for the final effect.
I don't remember whether or not the pyramids are lit in this particular image, but they definitely flash/blink/throb in the footage. It's not a dramatic effect, but definitely there. And this film certainly shows the pyramids glomming onto Kirk, but it was clearly shot in reverse, i.e., with the pyramids being pulled off of Shatner.
Best,
Dave
PS. Thanks, everyone, for being patient both with me and with the revisions to the website!