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Rocks in Island's shores

mendiola_loyola

mendiola_loyola

Resource contributor
Messages
520
Country
peru
Dear all:

I've made an Island with a great peak close to the shore.

The problem is that i see a rock texture close to the shore.

This rock texture appear only where there is an steep or cliff.

Is there any solution to correct those rock textures over water?

Can i use a flatten to avoid that problem?

I'm using vector2shape FSX sdk.

For information that island is the San Lorezo Island in Lima, Perú.

I hope that you can help me.

If you detect any grammar error, please tell me for improve my english...

Thanks.
Alfredo Mendiola Loyola
Lima Perú
 
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Alfredo M. since no one has responded I will try to help you here.

I am having trouble understanding what you are asking, so I will ask you una pregunta here:

1) Is the light tan colored area the shoreline you want for the island?
 
Rock on water texture

Dear Mace:

No, the light tan colored area is a rock texture above the water texture that FSX render over the sea.

I thought that water polygon flattens the water polygon area under it, but it seemes that it doesn't do it.

Alfredo Mendiola Loyola
Lima Perú
 
You mean to say, that you have placed water polys there? Water polys can be any elevation, not necessarily zero meters. But I think you're seeing something else.

If your mesh is accurate, and GoogleEarth is accurate, then when you draw your shoreline around the island, that should take care of things.

I have seen a few instances where an island was very small, and the tolerences were small between the island land, and the ocean. This was at Isla Contadora in Panama where I was doing some scenery work.

I had to ever-so-slightly "adjust" the shoreline to take into account the inaccuracies of the terrain mesh data.

This may be what you are seeing at your island.
 
I'm having exactly the same problem with these textures. This is part of Dent Is. Just to the West of Hamilton Is. Queensland Aust. ...


By tony_a

I have excluded Hydro polys, Added Hydro polys and then Polygon Holes for the island shapes and added a shoreline. I still get these areas of tan rocks around the islands edges ( They also appear on the default scenery) There seem to be a lot of North-South straight edges to them. They are at sea level and wave effects crossover them to the shoreline. (This also happens where they appear in the default scenery.) They seem to me to be another layer that FSX includes that probably needs another Exclude. Anyone got any ideas of which excludes to try out :confused:

Cheers Tony
 
Hello, Rhett,

My Water poly is just a simple rectangle to cover the area of land exposed by the Hydro-poly exclude. I didn't apply any altitue as this should all be sea level. As these "rocks" are also there in the default FSX scenery, I think that they must be some sort of an attempt by the FSX developers to add rocky shorelines. Not very convincing as the wave effect washes right over them to either the default shoreline, without my FSX-KML changes included, or with my FSX-KML changes included. I'll try a few different excludes to try to get rid of them....

Cheers Tony
 
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meshman said:
I'm pretty sure I read somewhere that FSX is opposite of FS9, in that the FSX world is all land and the water is added in. So if you needed to realign "an existing island's shape", the land is there and the water would need to be manipulated.
Click to expand...

Correct. Note that there are landclass cells that are water. So in some cases when you peel back the default water polygons there will be water underneath. In those cases you'll need to add a Park polygon (or several) to fit within the hole in the water.

-Doug
 
Tony_A said:
also happens where they appear in the default scenery.) They seem to me to be another layer that FSX includes that probably needs another Exclude. Anyone got any ideas of which excludes to try out :confused:

Cheers Tony
Click to expand...

@Tony, Alfredo, et al:

Re-starting work on my Nicaragua terrain project, I have revisted this problem, and I can verify that it does exist, and I also know why and how it happens.

It will only happen when you have close tolerances...in other words, you have a coast right next to a hill, and so forth.

It happens because of very slight differences between the terrain mesh data and the vector scenery data. Since the tolerances are so slight (distances are so close...), any small variation in data will yield in essence, an "overlap". Read on...

What you will often see with these rocky areas, is a flat sheet-like face on a hill adjacent. You are, in essence, forcing the terrain mesh down to your shoreline, when the terrain mesh's data says that it should not be quite reaching the shoreline.

This is all controlled in the TERRAIN.CFG file, and could probably be tweaked away in there, but this is not advisable. You want your scenery to be usable by *anyone*, and you should not require a modified terrain.cfg file just to use your scenery. But that's a philosophical issue I won't go into here.

My best suggestion to fix this is to "cheat" with your shoreline, and move it slightly toward the rocky area. This will not match perfectly with what you may get in GoogleEarth/FSX_KML. It will however eliminate the problem.

I think I would rather have a fudged coastline than have that rocky stuff and straight line. No one (except you) is going to notice your fudged coastline. And yes, you will notice it. :D and yes, it will aggravate you. :) But users will probably not. But users WILL indeed notice the gray rocky areas if you let them stay.

Hope that helps a little...
 
Thank you for your reply Rhett, I've tried a few approaches including covering these areas with water polys but that has no effect. These areas are indeed quite near steep hillsides. I agree that tweaking the .cfg file is a bad idea and will do as you suggest and fudge the coastlines - and ,yes, it will aggravate me :cool:

Cheers Tony
 
I've noticed that when manipulating the coastlines that the displayed outlines of the "rocky" areas sometimes move. Is this something to do with the sims inbuilt adding of "rocky" textures to sloped terrain? I suspect that this is the case and can't see any way to overcome it so I'll continue with "fudging" the coastlines to cover the areas sticking out from the shorelines. Maybe FS11 will do a better job on coastlines next to steeply rising terrain.

Cheers Tony
 
Tony_A said:
I've noticed that when manipulating the coastlines that the displayed outlines of the "rocky" areas sometimes move. Is this something to do with the sims inbuilt adding of "rocky" textures to sloped terrain?
Click to expand...

That's exactly the reason.

The only easy way I know of to counteract this is to cheat on the coastline a little bit. The other method would be to make a custom mesh but that is not easy. Like I said, at least for me, I would rather have a slightly off coastline than have the rock. Who is going to notice a slightly off coastline...but users will notice the rock.
 
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