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making nice terrains
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MeinenM
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Joined: 09 Mar 2008
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PostPosted: Tue Sep 09, 2008 12:54 am    Post subject: making nice terrains Reply with quote

Hey, i've been stuck on a problem thats been nagging me for a while and i wanted to bring it to you guys to see if you could help. I'm trying to make this game right now (using realmcrafter) and i need some advice on modelling terrain. I have 2 seperate textures and i need to make nice looking paths in my terrain. If i just make some extra square polygons for the paths it doesn't look very good at all, there is to much contrast inbetween the textures. Can someone give me a good example of terrain with a path on it using 2 seperate textures or just some advice? thanks
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Mr.Fletcher
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PostPosted: Tue Sep 09, 2008 9:08 am    Post subject: Reply with quote

You could add transparency to the sides of the path texture. Then create another mesh for the path with that texture and it will blend smoothly.
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MeinenM
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PostPosted: Tue Sep 09, 2008 8:21 pm    Post subject: Reply with quote

I'm not exactly sure what you mean. And how to you add transparency?
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Daaark
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PostPosted: Tue Sep 09, 2008 8:25 pm    Post subject: Reply with quote

A nice way to do it is to project your whole terrain onto a bitmap and then just spraypaint your roads and stuff, and use a second texture layer as a detail map, but DeleD forces you to use the same UVs on each layer so that doesn't work.

A few games I modded had like 8 textures for the roads. You had the dirt texture, and then various textures for the edge of the road hitting the grass, and the corners.
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Mr.Fletcher
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PostPosted: Tue Sep 09, 2008 9:23 pm    Post subject: Reply with quote

MeinenM wrote:
I'm not exactly sure what you mean. And how to you add transparency?


So you've got your path texture, right? You set that to alphablend in the material editor. Then, you create an object like this:


A quad with two neighboring quads.

Then, select the outer vertices, go to the object inspector -> vertex color and set the alpha value ("A") to 1. It should look like this:



Then you can create a path by extruding the edges



Alternatively, you can store the alpha information in the path texture, so you don't need those extra polygons and have some more possibilities to play around.
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Jeroen
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PostPosted: Wed Sep 10, 2008 7:34 am    Post subject: Reply with quote

That's a GREAT example, Fletcher. Excellent work. Smile
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MeinenM
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PostPosted: Fri Sep 12, 2008 9:45 pm    Post subject: Reply with quote

thanks but theres still one problem that i have...do you need to use 2 seperate objects one for the terrain and one for the road? Because when i do this it flickers back and forth not very nicely. When i use on object the colour just goes white in that area and doesn't blend to the other texture
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Daaark
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PostPosted: Fri Sep 12, 2008 9:47 pm    Post subject: Reply with quote

MeinenM wrote:
thanks but theres still one problem that i have...do you need to use 2 seperate objects one for the terrain and one for the road? Because when i do this it flickers back and forth not very nicely. When i use on object the colour just goes white in that area and doesn't blend to the other texture
You can use the same trick in a paint program to create a flat road texture with the grass under it.
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afecelis
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PostPosted: Fri Sep 12, 2008 10:45 pm    Post subject: Reply with quote

wow Fletch! this quick tutorial is great!!!! Smile
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Mr.Fletcher
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PostPosted: Fri Sep 12, 2008 11:55 pm    Post subject: Reply with quote

MeinenM wrote:
thanks but theres still one problem that i have...do you need to use 2 seperate objects one for the terrain and one for the road?

If you do it that way, yes. Well, you could merge those two of course. By flicker you probably mean z-fighting? If so, you could move the road polygons slightly upwards, the two objects don't lie exactly on each other.
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MeinenM
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PostPosted: Sat Sep 13, 2008 12:55 am    Post subject: Reply with quote

Thats what i did moving the objects slightly upward and then the 2 texture weren't touching eachother anymore so there was no more texture blend
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trucker2000
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PostPosted: Sat Sep 13, 2008 1:40 am    Post subject: Reply with quote

You can select the faces you want to add your blended texture too and get the same effect without adding geometry. (no more Z fighting eather) Smile
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santutatu
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Joined: 18 Aug 2007
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PostPosted: Tue Sep 16, 2008 11:21 pm    Post subject: Reply with quote

May I ask from where did you get that textures from Mr.Fletcher?...Are them from any pack from DeleD or from a web?
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Mr.Fletcher
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PostPosted: Wed Sep 17, 2008 12:23 am    Post subject: Reply with quote

Those two are part of one of Nocturn's texture packs I think. Either that, or they come with DeleD.
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santutatu
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PostPosted: Wed Sep 17, 2008 1:09 am    Post subject: Reply with quote

Thanks! Smile
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