One more question

Discussion in 'Mapping Questions & Discussion' started by Viewtiful, Jan 5, 2015.

  1. Viewtiful

    Viewtiful L1: Registered

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    Well before I ask I'd like to thank you guys for the help you've given me so far. Really wouldn't have been able to do much without ya.

    Before I stop pestering you guys with questions just have this last one. I can't seem to type in the right key words to find any answers to it, but I was just wondering how people broke up the textures to make paths on them. Like replacing some grass with dirt and adding little stones to the ground like here. I can hardly describe it at all.
     
  2. Izotope

    aa Izotope Never releases maps

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    These materials have two textures that can blend into eachother using the "Paint Alpha" thingie on displacements.
     
  3. Dr. Sasha

    Dr. Sasha L4: Comfortable Member

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    Hello.

    This effect is created through use of displacements. Displacements allow geometry to effectively painted on (alpha painting), or molded into shapes. Displacements are commonly used to create terrain in maps and other effects, through its ability to be changed in shape. Here is an example of a displacement:
    [​IMG]
    Displacements, in addition, as said before, have another common use: Alpha Painting. Alpha painting is where a texture applied to a displacement can be "painted on" using another texture. Here is an example, similar to you have shown in your original post:
    [​IMG]
    The ground texture shown in the screenshot above is a displacement. Notice of how at certain spots There is a coal-like texture applied and a flat, ground texture applied. This is an example of alpha painting. However, only certain textures can work with this. Textures can be "loaded" with two textures, making them compatible with alpha painting. To know which textures are compatible, the difference is fairly obvious. In the texture browser, the thumbnail for the texture shown will be a gradient between two textures. Here is an example to better explain:
    [​IMG]
    For tutorials on how to do this, a simple search on Youtube will explain everything. Hope this helps!
     
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  4. henke37

    aa henke37

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    It's called a blend material. There is a dedicated shader for them.