n3v_laurence
Moderator
I have encountered a strange issue sometimes when laying new ground textures close to track and its ballast texture. The ballast textures under the track will raise up and partially cover the track in some places - not evenly but in random heights. Smoothing the ground under the track will not correct the problem. I have the shader quality set to standard. Undoing the last texture "add" will correct the problem with the track and the ballast.
Anyone else seeing this issue?
This is likely the displacement geometry of the PBR textures in HD, seen by the dimple like effects in Post 74. Some of the textures are more pronounced than others, which will give the texture varying height even while applied to flat ground. A good example of this is <kuid2:661281:85046:3> PBR Sand 2 - Seasonal which has many little dunes. The peaks of these dunes will show up through the sleepers of track.
A smooth ground under will not change this as the ground is already flat, and it is the material settings used in the texture itself causing the height difference. The solution here will most likely be to use a texture that doesn't have an extreme heightmap.
The other possibility is that it could be the lossy compression coming into play when using HD edits very close by the track. Though this should not impact track height, unless you were using a scrapbook entry that also included a ground height edit.
If you submit a bug report and list the assets used for the issue, QA can have a closer look and then dev can figure out the best solution.