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How To Increase Terrain Resolution For Better Heights, Texturing, Deformation & Models Placement

How to increase terrain resolution for better texturing, more detailed heights, better terrain deformation under water areas, more precise models placement and generally a more detailed world; you can go into HEIGHTS tab and increase Heightmap Source's resolution as explained below:

TW_HighResTerrain.jpg

Here's how you can manually bring up heightmap resolution to an arbitrary resolution value which is the first station in bringing a more detailed world... When BEST RESOLUTION is enabled, TW tries to get the optimal resolution from the original data on servers, but it may not be enough for further processing, so you can see what it outputs firstly (e.g. outputs 512 resolution heightmap in Terrain settings tab) and then give it an arbitrary number to increase resolution after world generation Also obviously the smaller the area is, the better resolutions and pixels will spread throughout the surface.

To add to this, further processors of "Smooth" & "Hydraulic Erosion" nodes in the heightmap chain play an important role in bringing the source heightmap to a more natural and detailed surface, so firstly increase the heightmap resolution as shown above and play with Smooth and Erosion filter settings to achieve the best looking and highly detailed surfaces down to cementer resolutions.

The technical overview of the whole heightmap process is that it takes the original heightmap from ESRI servers and not NASA and then TW resamples it to user-defined resolution (e.g. converts original 1k data to 4k) so heightmap will end up with millions of vertices to work with, then we add Smooth to take out banding artifacts and unwanted terraces and finally the Erosion brings it into life by using provided pixels in heightmap data. The whole process is shown in this vide tutorial:

If you want to know the global coverage resolution for the ESRI World Elevation service in TW see here: https://www.arcgis.com/home/item.html?id=3af669838f594b378f90c10f98e46a7f

Source: https://forum.unity.com/threads/terraworld-automatic-level-designer-for-real-world-locations.784217/page-6#post-7301287