Extremly slow token movement on locked maps, after adding line of sight

[masterqgj]

Hi,

we've had a D&D game last weekend, where our DM added line of sight to the map for the first time. We quickly found out, that the movement (when a player drags the token, the GM has to accept that movement and the token wanders to the target location afterwards) is extremly slow. It's been like 0.25 fields per second, maybe even less.

Is there any solution to that? The map itself was about ... 120by120 fields so quite large, but it was mostly a large cave with only few "LOS walls" to restrict the players from viewing specific areas. No fx effects or anything else was active.

[Sulimo]

Overall map size, in both pixels, and size on disk are the true indicators of how large the maps is.

Any idea how big it is?

My guess is quite large, since you said 120 grid squares by 120 grid squares, if so, that might be the source of the issue. Hard to say for sure though.

[masterqgj]

The filesize of the map is ~ 2,72 mbyte (not that much i'd say). The dimensions were 4000x4000 pixel, 96 dpi, 24 bit

Most of the map was pure black - i guess that's the reason why it's so small on the HDD.

[Fear Grounds]

Maps should generally be around/below 2048 X 2048 pixels for ease of use. I generally try to keep my maps below 1MB as well.

[Sulimo]

Was it really black, or just masked from your player perspective?

4000x4000 is rather large. If most of the image was truly black, then the GM should clip only the relevant portion out, and discard blank portions of it. That will help out some I would suspect.

[masterqgj]

It was true black, but it was in between colored areas (tunels), so just "cutting it off" would'nt have worked.

Okay, i told my DM to reduce the map size - we're gonna trying it the next time when he's preparing a new map.

Thanks for your answers!

[LordEntrails]

Other than map size, and maybe even more so, is how the LOS occluders are added. curves, circles, etc can really make lots of small segments, that all require calculation. IMO, no occluder should ever be less than half a grid in length, and preferably much longer than that. Also don't overlap occluders including doors. Clean up the intersections so that FG doesn't have to calculate toentities that are hidden.

Remember, every token has to calculate LOS to every element, all the time. So, more occluders and more tokens equals more processing which means slower response.

[JohnD]

Gee this sounds familiar.

Shrink that map from 4000x4000 to about 1800x1800 and see if the movement is improved.

[kevininrussia]

I use large maps about the 4k size. Only time I notice slow token movement is when there are a lot of NPC tokens on the map. I tested it last game and started deleting the NPC tokens to see if the locked token movement increased. It did when I got the NPC tokens down to about 10.

[Jiminimonka]

What's the grid size? I find if you have small grid on a large map tokens are slow. They are fixed at a speed based on moving from one grid to another I believe.

[masterqgj]

I do not know the grid size - i think about 40ish or so, maybe even 50 and i miscalculated the ammount of grid tiles. But we'll give it a shot next time with a smaller map size.

The amount of enemies were 12 or 14 overall. One adult Dragon and several smaller lizards - not that much i'd say - and they were most of the time invisible untill the encounter started.

[Moon Wizard]

We are re-working the whole LoS system with the vision/lighting; so performance will probably be changing.

However, it would be great if we could get a copy of the campaign, and the name of the map.

Regards,
JPG

[masterqgj]

Hi Moon Wizard,

Thanks for letting me know. But our DM is "a bit lazy" and asks if you have a e-mailadress where he can send the campaign folder to? He does not want to upload the files here in the boards and i couldn't find a way to transfer files via PM. :(

[LordEntrails]

Hi Moon Wizard,

Thanks for letting me know. But our DM is "a bit lazy" and asks if you have a e-mailadress where he can send the campaign folder to? He does not want to upload the files here in the boards and i couldn't find a way to transfer files via PM. :(
[email protected]
Make sure he includes a link to this thread or they won't know what to do with the files.

[masterqgj]

Thank you LordEntrails, i gave the information to my DM and asked him to send you the campaign files (i think he need to remove some images though - due to file size and mails and such :).

[masterqgj]

The campaign folder has been send by my DM and he added a link to this thread. Thanks for investigating it and thanks to all for helping us with the issue. I had hosted a starfinder campaign with LOS and no issues, but my map file was definitely smaller than his :).