Unreal Engine 4 Mosaic import issue: gap between terrains
Posted: Sat Aug 09, 2014 7:50 am
Hello,
I purchased a professional L3DT license last week in order to use it in conjunction with Unreal Engine 4 for a game I am making. My basic workflow is to make large maps in L3DT and then export them as mosaics and stitch them together as separate levels in the world composition tool. I ran into a couple issues on import, like what tile size to make, that I managed to fix, but one issue remains.
There is a vertical (purely vertical meaning no x or y offset only z as in altitude in UE4) gap between height map tiles in my imported mosaic. The gap appears to vary by the rate of change in the height map (meaning that the vertical distance between the height maps is not continuous along the edge of the tile). Initially, I was not using "duplicate tile borders" and the gap was larger. Now I do use it and there is still a gap but it is smaller. I have tried everything I could think of to no avail (I have created over twenty different mosaics to test different theories). My best guess is that the PNG file format (I tried both PNG and RAW format properly setup according to the UE4 documentation) somehow is not capturing the vertical range of each tile correctly, and as a result tiles differ in their vertical edge matching as a function of their difference in height range, but of course I know very little on the topic.
I took numerous screenshots of the issue (attached) and I have sample PNG files, but of course you would need UE4 to see the issue there.
(I've never posted on here and that's all the files I'm allowed to attach I guess so yeah...)
Can anyone offer any advice as to how to get the tiles to match up?
I purchased a professional L3DT license last week in order to use it in conjunction with Unreal Engine 4 for a game I am making. My basic workflow is to make large maps in L3DT and then export them as mosaics and stitch them together as separate levels in the world composition tool. I ran into a couple issues on import, like what tile size to make, that I managed to fix, but one issue remains.
There is a vertical (purely vertical meaning no x or y offset only z as in altitude in UE4) gap between height map tiles in my imported mosaic. The gap appears to vary by the rate of change in the height map (meaning that the vertical distance between the height maps is not continuous along the edge of the tile). Initially, I was not using "duplicate tile borders" and the gap was larger. Now I do use it and there is still a gap but it is smaller. I have tried everything I could think of to no avail (I have created over twenty different mosaics to test different theories). My best guess is that the PNG file format (I tried both PNG and RAW format properly setup according to the UE4 documentation) somehow is not capturing the vertical range of each tile correctly, and as a result tiles differ in their vertical edge matching as a function of their difference in height range, but of course I know very little on the topic.
I took numerous screenshots of the issue (attached) and I have sample PNG files, but of course you would need UE4 to see the issue there.
(I've never posted on here and that's all the files I'm allowed to attach I guess so yeah...)
Can anyone offer any advice as to how to get the tiles to match up?