I have used several programs that import heightmaps, a couple of them game engines and 3D visualization software (like VUE). No program I’ve ever used has had this effect
From far away the terrain that was imported looks fine:
However if I zoom in closer, we see the landscape has imported very strangely:
My question is what causes this, and how to make UE4 interpolate the heightmap?
If this is just the way it imports then here is another question. Due to limitations in how many variations there are within a typical gray-scale PNG image, I designed a format for a heightmap using multiple colors for precision:
Red channel: Represents 1 unit
Green Channel: Each green unit represents 1/256’th of a Red unit.
Blue Channel: Each blue unit represents 1/256’th of a Green unit.
I’ve used this format before and it’s extremely easy to implement the code to export and import this map, the problem is I can’t find any location to add custom import scripting, short of completely modifying the engine, is there any support for adding in custom heightmap formats, or plugins that add this type of support? This really only matters if I can’t import the normal heightmaps smoothly.