Heys... I was trying to install this mod into a mostly vanilla savegame (pre-existing) in the hopes if trying new stuff and maybe avoiding having to paint the map with solar panels for once... but upon starting the game after installing it I got greeted by that message: "No picture to put in atlas".

Here's the relevant dump from the factorio log:

{{{
22.849 Error AtlasSystem.cpp:198: Prepared sprite registrations are empty: start = 70128, to try = 0, max size = 2048, registered sprites count = 84761
22.849 Atlas: virtual = 0, flags = shadow, linear-magnification, alpha-mask
22.849 registration[70128]: padding = 1, dest_width = 1624, dest_height = 1365, filename = RealisticFusionPower/graphics/entity/shadows/antimatter-reactor.png
22.849 registration[70129]: padding = 1, dest_width = 1628, dest_height = 1365, filename = RealisticFusionPower/graphics/entity/shadows/antimatter-reactor.png
22.849 registration[70130]: padding = 1, dest_width = 1628, dest_height = 1365, filename = RealisticFusionPower/graphics/entity/shadows/antimatter-reactor.png
22.849 registration[70131]: padding = 1, dest_width = 1628, dest_height = 1365, filename = RealisticFusionPower/graphics/entity/shadows/antimatter-reactor.png
22.849 registration[70132]: padding = 1, dest_width = 1628, dest_height = 1365, filename = RealisticFusionPower/graphics/entity/shadows/antimatter-reactor.png
22.849 Error Util.cpp:83: No pictures to put in atlas.
}}}

Not sure what the issue is, it could be maybe some interaction with some of my other mods? I'm not using any game overhauls at all (in terms of recipes and processes,) just vanilla with added convenience mods and many QoL mods.

Also, I'm playing on a really old GPU atm. (not sure if that's related) since my actual GPU died and I had to grab whatever I had in old machines lying around, and thus I'm playing the game at really low settings (my current GPU has only 1 GB VRAM and it's from 2009!)

It seems the issue was solved when I increased the Texture Atlas Size from 2048 to "Largest possible".

Seems like the antimatter reactor's texture is too big for your GPU to handle at 2048 for some reason. Don't think it's a problem with the mod, more so your hardware or Factorio itself.

True, true... as I said, my real GPU died :`( I'm using whatever I had around until I can get a new one, which is more difficult than it should be atm.

In the mean time, I'm gonna go into creative mode and place all the machines/entities from the mod to see if I don't have any other issues with them in-game... don't want to invest a bunch of time and research into building them and then discover that my game can't handle it! (In case they are graphically intensive, I mean...)

Other than that, looking forward to using the mod in this game! :) This seems to be an awesome mod, from the looks of it... Thanks for making it!