Line Of Sight Wall Bug

[Agathon]

I've used a lot of maps in Fantasy Grounds and set them up with walls and lighting with no problems. My latest map is having a big problem though. My players are able to push against some walls and see the other side. Here's a map section:

https://www.fantasygrounds.com/forums/attachment.php?attachmentid=64440&stc=1&d=1748015473

I've given the commoner 120' darkvision for this test. Here's the commoner's normal view:

https://www.fantasygrounds.com/forums/attachment.php?attachmentid=64441&stc=1&d=1748015489

If I drag the commoner a little to the right, pressing against the wall, it will see the other side of the wall revealing other parts of the map in the distance. This sometimes happens with keyboard movement of the token as well. Players are able to do all of this, it's not just me when editing or testing. Here's a screenshot:

https://www.fantasygrounds.com/forums/attachment.php?attachmentid=64442&stc=1&d=1748015501

I've reviewed the walls on the map and they look normal. Here's an edit view:

https://www.fantasygrounds.com/forums/attachment.php?attachmentid=64443&stc=1&d=1748016157

Any ideas?

[Zacchaeus]

I think that's expected if you draw the occluder exactly on the grid. If the occluder is not exactly on the grid then the token won't get as far through the occluder.

[Agathon]

There's no way I can check that for every wall on every map.

I'm calling it a bug. A game-breaking bug.

Any suggestions for minimizing this when making maps? Especially if it is expected and, therefore, not going to be fixed.

Thanks for replying.

[pindercarl]

I think that's expected if you draw the occluder exactly on the grid. If the occluder is not exactly on the grid then the token won't get as far through the occluder.

64447

Zacchaeus is correct that it is likely a conflict with token grid snap and the walls being snapped to the grid. However, this should be handled to prevent tokens from peeking through the walls. If you can export the map using the "Export image to file button" and attach the exported image and xml file, I will take a look at it. Thanks.

[Agathon]

The image always comes out mostly black when I export it, but here are the files.

[Zacchaeus]

The image always comes out mostly black when I export it, but here are the files.

@pindercarl needs the actual map as well as the xml file. See his image above and use the export to file button (highlighted) at the bottom of the map tool section to export the file (You can select .jpg, .png, or .webp from the dropdown in the export screen). It should export as a clear image.

[Agathon]

Unfortunately, the map is 26 separate tiles, not one image. I've tried exporting it almost a dozen different ways (formats, turning off lighting, etc.) and the image is always transparent except it shows the players.

I'll try duplicating it and getting rid of tokens...

[Agathon]

No luck, still a transparent file.

[pindercarl]

No luck, still a transparent file.

No worries. I can work with these files. Thanks.

[Agathon]

I've duplicated this on another map. You're right, just drag wall points to the grid (ctrl-drag) and make a segment of the wall that runs along the grid vertically. A token will be able to push against this wall segment and see past it.

[Zacchaeus]

Maybe zip up the campaign folder and attach that; or if that is too big then put it in Dropbox or similar and provide a download link.

Not sure why the map isn't exporting - no matter how it's made up (I just tested a thrown together map with tiles and it exported as one image).

[MrDDT]

Not sure if this will muddle things or not but this looks like the issue reported here.

https://www.fantasygrounds.com/forums/showthread.php?84515-Walls-are-not-completely-blocking-movement