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Asked By | Seanfy |
Hi,
I’m trying to generate the navigation polygons for the new navigation system, the map is generated in code and a bitmap is created to show which tiles are walkable or not (each pixel in the bitmap represents a tile in the map).
When I use Bitmap.opaque_to_polygons(), seems it will miss some part of the bitmap.
You may see the area that I marked in red on the image below.
https://i.ibb.co/hdz3wzN/polygon1.png
I don’t know if this is a intended effect or a bug from the function.
If this is intended, what would be the correct way to get what I need?
Thank you!
I don’t know about Godot 4, but Godot 3 has a few issues with this: BitMap `opaque_to_polygons()` polygon generation problem · Issue #31675 · godotengine/godot · GitHub
SteveSmith | 2023-01-25 11:18
I looked into the link, I feel it’s not quite the same as the problem as I’m having now.
After playing around a bit more, it seems once the function has found one polygon, it will not detect if there is any ‘hole’ inside it.
Seanfy | 2023-01-26 08:56