Changing heightmap from rough contour lines to smooth

[waldronate]

Have you tried doing this in Wilbur with the source material that you have?

Using the image posted above, the histogram looks like this: nice flat spikes at each filled contour:



Select the land, add noise (about 10% of your maximum altitude), fill basins, incise flow (2, 0.3, 0.7, 0, 0.5, 0) will get you this image:


And its histogram looks like this:

Notice that the spikes have broadened considerably and to the left of each original spike (that is, the land has been removed and generally not added much). The broadening is partly due to the noise (the histogram for the noise step will look like slightly widened spikes), and the leftward tail on the original plateaus is due to the incise flow operation being a remove-only operation.

This operation does change your original contours somewhat. Anything other than a simple interpolation will do so, including your stated goal to "add the final details in wilbur".

This kind of processing in Wilbur does have another significant issue: Wilbur can only process what it has in memory. On the above processed image, you'll note that river systems along the bottom edge of the map are running completely the wrong way (straight at the edge of the map). For best results in Wilbur, the coastlines need to be visible all around in order to prevent the weird edge effects. Or you can make the terrain a little larger and draw a tall wall on the waste space to keep everyone heading in the same general direction, but then you won't get rivers heading into the map from off-image.

[NAVALASOLANA96]

Thanks for your answer.

This operation does change your original contours somewhat. Anything other than a simple interpolation will do so, including your stated goal to "add the final details in wilbur".

Sculpting the rivers and having them slightly modify the geography would interest me as the last steps to detail the map, however I cannot overlook the fact that the contours remain so marked... For the sake of making it realistic. I need to solve this problem first.

This is also justified when some rivers cross mountain ranges, since they understand that the space between mountains is at the same height, pic below.

For best results in Wilbur, the coastlines need to be visible all around in order to prevent the weird edge effects. Or you can make the terrain a little larger and draw a tall wall on the waste space to keep everyone heading in the same general direction, but then you won't get rivers heading into the map from off-image.

Dont worry regarding the coastlines, this pic is only a section of the map for testing.


How does the deterrace tool work and what is it for?