Very Easy Way of Smooth Coastlines

[irishron]

Not broken for me. Check your ad blocker settings.

[Gigantus]

I had saved the article, added the second blending setting back. (Attached pictures directly)

[_Capper_]

Examples

[FireFreak111]

Is there anyway this can be done on Gimp? I am getting errors with the shoreline where at certain corner angles a triangle is basically cut out of the diagonal shoreline, making it transparent so you can see the river through it. This was with coarse smooth shoreline technique, and I don't have PS.

[Gigantus]

I am not sure what settings you would have to use when in layer mode, this seem to be PS specific.

[FireFreak111]

It's a shame, I have a technique I am currently using, it is extremely simple:

Unicolour smoothing.

It can produce good results (good enough ) like these:





Then you get sort of glitchy results (look at the northern coastline)



And then other rivers break, giving large amounts of small triangles.

[Gigantus]

I used to do it manually before myself, but it can get extremely tedious. There is tutorial about the manual way as well which produces results like you are showing.

I recently heard of a 'freeware' version of PhotoShop, maybe give it a shot?

[FireFreak111]

Now I am just puzzled. I did everything according to the this tutorial in CS6, and I get these results:

Spoiler Alert, click show to read: 

More pronounced triangles!!!!!

Here are all my settings:

Spoiler Alert, click show to read: 

Using 010101 as the right end value (000000 produces the same)


Ocean using 0000ff


Before adding the other layers


Final result

[Gigantus]

Did you use a 'clean' map_heights? Meaning only one RGB value for the water.

[FireFreak111]

Cleaned it before hand by deleting the water from the map_heights, then made a separate layer for water in photoshop like the OP, so that the two height layers have transparent water also like the OP. I also used the Greyscale average after I first tried this method and got those results, turned out I had a few 19,19,20 style values that needed correction.

The color for the water layer is 0000ff (0000fd produced the same results).

[Gigantus]

I have had limited success by increasing the RGB land values where those triangles occur. Given the fast way the initial work can be done I don't mind - it used to take days to get a somewhat decent coast. Now I am down to 2-3 hours and all that time is used to iron out triangles, so if someone can work out how to transfer the necessary adjustments into a layer style that would be great.

[FireFreak111]

What is the RGB land value you use to fix the triangles? is it a simple 050505 or something higher?

[Gigantus]

It depends on the opposing water value, but most of the time an increased value like you mentioned is sufficient. Occasionally increasing the neighboring values helps as well.

[maniac106]

Hey guys, I'm new to PS and its blending mode, so can anyone explain this method in detail?
It's very difficult for a noob like me to follow this because of lack of text guidelines.

[robomanus]

Hey guys, I'm new to PS and its blending mode, so can anyone explain this method in detail?
It's very difficult for a noob like me to follow this because of lack of text guidelines.

You have to learn. There is nothing to do. Read again and understand the method. Learning with patience is the only way

[Red_Devil]

any way to do this with the gimp?

[Danya82]

I don't see nothing near spoilers, i forgot, what i have to install?

[Gigantus]

Here is a tutorial that builds on this method.