Tiled Heightmap Exports from Houdini have open seams when used with world composition

sideeffects / HoudiniEngineForUnreal

Houdini Engine Plugin for Unreal Engine.

http://www.sidefx.com/unreal

Other

1.36k stars 374 forks source link

Tiled Heightmap Exports from Houdini have open seams when used with world composition #87

Closed Skullfurious closed 5 years ago

Skullfurious commented 5 years ago

When exporting a tiled heightmap from Houdini and importing into UE4 there are visible seams between the edges. Edges almost line up but are not fully accurate. The only solution for the time being is using the retopo tool but there is way too much terrain for the small max brush size UE4 has.

Unsure of what's causing the issue. The original size of the landscape is 2020m.

Example: https://i.imgur.com/jvc4u0l.png https://i.imgur.com/L0aOAMP.png

dpernuit commented 5 years ago

Hi,

This has been fixed in today's daily build (17.0.395).

The HF_Output node now has an additional parameter when exporting tiles, called “Tile Overlap”, it allows tiles to share a given amount of points on their border.

For game engines export (and specifically for unreal), you'll want to set the overlap to (1,1). (also make sure that the tile size you export matches unreal's landscape size requirements).