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API > API/Runtime > API/Runtime/Navmesh > API/Runtime/Navmesh/Recast
References
| Module | Navmesh |
| Header | /Engine/Source/Runtime/Navmesh/Public/Recast/Recast.h |
| Include | #include "Recast/Recast.h" |
| Source | /Engine/Source/Runtime/Navmesh/Private/Recast/RecastArea.cpp |
bool rcErodeWalkableAndLowAreas
(
rcContext * ctx,
int radius,
unsigned int height,
unsigned char areaId,
unsigned char filterFlags,
rcCompactHeightfield & chf
)
Remarks
Erodes the walkable area within the heightfield by the specified radius. Additionally, it will mark all spans that are too low (rcMarkLowAreas)
Basically, any spans that are closer to a boundary or obstruction than the specified radius are marked as unwalkable.
This method is usually called immediately after the heightfield has been built. True if the operation completed successfully.
Parameters
| Name | Description |
|---|---|
| ctx | The build context to use during the operation. |
| radius | The radius of erosion. [Limits: 0 < value < 255] [Units: vx] |
| height | Height threshold [Units: vx] |
| areaId | The area id to apply [Limit: <= @RC_WALKABLE_AREA] |
| filterFlags | See: rcFilterLowAreaFlags |
| chf | The populated compact heightfield to erode. |
See Also
rcBuildCompactHeightfield