I have rendered this image using .ter file, the original size is 4096 x 4096 but have saved as jpeg and reduced to 1024 x 1024 to keep the file size down, as you can see in this image the coastline is a little jagged, the image and terrain was first created using 3dem and hgt lat/lon files, is it possable to smooth the coastline if so how can this be done.
Thank you any help.
I'm using 3dem to place a number of hgt tiles together, then using flight sim software to create Terragen .ter files, each hgt tile is 2,818 kb is there anway to reduce this file size or is there any other softwar available that maybe just ad good as 3dem or even better.
First you'll need to convert the ter files to something you can open in Photoshop. Duplicate the layer and blur it. Set the layer's opacity to 50% or less. Save it as something you can then convert back to ter, like a PNG file. I recommend using Wilbur for the conversion. You'll need to adjust the max/min height to what you had before, so write down the max/min height before you open the new ter in TG.You should have about the same terrain as you had before, but a bit eroded. Your coastline should be smoother.
I can already convert the .ter tiles using software within the flightsim Tools I'm using so no problem there, will try duplicating the layer and see what results I get, what is Wilbur software and how good is it with what I'm trying to do, min and max heights already set, I have put the .ter file and tgw file that I'm using here, maybe someone could test this also.
This looks like an accuracy issue in the source terrain, not a Terragen problem. Wilbur can be found here: http://www.ridgenet.net/~jslayton/software.html
- Oshyan
What is Wilbur and how will it work, is this much better software tha 3dem.
Wilbur is a terrain editor. It is different from 3DEM in that it is more focused on painting terrain shapes and using effects, rather than import/export of existing DEM data. That being said it can import and export to and from a range of formats and is a useful utility app that can help fix issues like this, either through one of its built-in filters, or by using a better import/export process.
- Oshyan
Will download Wilbur and will experiment, the hgt tiles I import or load into 3dem are 2,818 KB in size, is there software that would be able to reduce the size of hgt files, another question I have if I may, for example when importing a number of hgt tiles into 3dem edit as required, the save your terrain as Signed Interger, and as a .bin file, lets say for example the saved file is 10,752 KB is there software availabe where you maybe able to reduce the size of this file in any way.
Thank you.
Unfortunately I don't know the answer to those kinds of detailed format-specific questions. Conceptually speaking you would want to save into a compressed format of some kind. I don't know whether .bin or .hgt support compression though.
- Oshyan