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On this page, I
will take you through the exact steps to map a terrain:
1) Choose a
picture. I've chosen this picture:
2) Determine the
size of the picture and the aspect ratio of the picture. This picture is 320
width by 240 height. The aspect ratio is 4:3.
3) Create a
terrain which has polygon resolution with the same aspect ratio.
I created the terrain and
resized it to 40 x 30.
Using the altitude control, I set the terrain to an all flat surface.
4) Set the
terrain scale to 1.
Use these multipliers later
if needed to match
the terrain scale.
5) Open the
Material Editor and load your picture into Color produciton (or whatever
channel you want).
6) Calculate the
size of the terrain in world units. In this example, the size of the terrain
is 40 x 30.
7) Calculate the
required scale of the picture.
scale x = 40 /
45
scale y = 30 / 45
The result:
scale x =
.889, scale y = .667
8) Set the
material's scale to 1.
Material’s scale is
at 1.
9) Open the
Material Editor and set the picture scale to the calculated values, set the
mapping to object-standard and faces.
10) Calculate
the picture offset as 1/2 of the picture size.
The picture has been loaded.
The mapping is object-standard and faces. The picture scale is
based on the size of the terrain. The offset is set to one-half of the
picture's size.
Here is the
final result:
The small terrain has been duplicated twice. The duplicates were resized
using the terrain scale controls and material scale control. The top-right
is scaled to 2, and the bottom terrain is scaled to 4.
Here I put the
picture into the bump production:
The same picture scale,
offset, and mapping are applied in the Function Editor.
The bump production has been
added.
Continue to the next page to see some examples of
this easy terrain mapping. Each example took only a few minutes to create.
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