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A simple 3D starting point for making realistic grass terrains. |
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Terrains may seem like one of the easiest things to
create, but as you may have discovered REALISTIC 3D GRASS TERRAINS is not
quite as easy.
After doing it a few times I realized I needed to devise
an easy 'template' which would let me create a
starting point for many different kinds of earthly
grassland terrains and even cool alien terrains simply
by:
1. Adjusting the size of the ground layer.
2. Specifying quantity of grass, leaves, or rock to
randomly scatter about the ground.
3. Adjust colors, textures, and
lighting... 4. Add random noise or displacement to the ground for a
more natural wave/bump feel.Voila! The Grasslands Terrain kit was born.
What is the Grasslands
kit?
Grasslands begins with one of 4 3DS Max files (3DS version 3
and up) which consists of a parent 'ground'
plane, and a number of different child
layers including 5 different blades of grass, 2 types of leaves, and 1
rock layer. Each child layer has already been set-up to randomly scatter
itself over the area of the ground - you just specify how much of that
grass/leaves/rock to include. Additionally under the ground there is a
water table layer, folding the ground mesh down (or raising the
water) will reveal an instant lake bed.
The downloadable kit includes some sample textures and
some example terrains I created by modifying the Grasslands template
slightly. Examples:
Note: All of the support image/map files used for
these examples are in the Grasslands.zip download. Click to see larger
image.
How to make a grassy 3D
terrain?
1. After copying the
maps & matlibs to your 3DS
directory, load one of the Framework.max files from the Grasslands.zip download
2.
Decide which layers you are going to use, then select the layers you don't need and delete
them.
3. Select to modify the ground layer and resize it.
If you plan to add a noise/displacement modifier to the
mesh you should increase segments too. If you plan to use the water
table you will have to resize it also (unlike the grass layers it is not a
child to the ground and will not automatically resize with it).
Optionally, you can create a small grass patch for another terrain/picture
by resizing/rearranging the terrain to fit the grassy area you want
to patch.
4. Select each of the child grass/leaf
layers you want to scatter about the ground (one at a time). Go to
the
modify tab (verify 'scatter' is the active item on
the stack). On the 'Properties' panel change the duplicate quantity and
scale (size) accordingly.
{repeat for each layer}. Remember lots of grass
will create lots of polygons!
5. If you don't want the ground to be
perfectly flat (and you are comfortable with the amount of
grass/leaves/rock you have) you can select the Ground and all its
child layers and collapse them to an editable mesh (right click
pop-up menu when all is selected - DON'T DO THIS IF ANY OF THE LAYERS ARE
SHOWN BY PROXY - Plain & Medium max files use proxy to display each
layer [for speed] the detailed max project files are ok because they have
proxy turned off [adustable under layers modify panel]). THEN you can
apply modifier to the full mesh such as Noise or Displacement to
create a more natural bumpy terrain (In each of the
detailed samples I used the random noise modifier varying Z by 1-5')
6. Render! and remember to adjust colors, textures, and background maps to your liking...
Contents of
Grasslands.zip
This package includes 3DS Max files which contain all the
general framework files needed to create quick grass terrains. It is
intended for use with 3DS MAX 3 and higher. Since exporting to .3DS
or .DFX would prevent it from being a 'flexible framework' I didn't
provide those files.
All Max files contain
the basic objects in distributed layers which can be removed
or modified as wanted.
The object layers include: Ground
(parent object), Grass1 to Grass5 (various shades and curved grass), Leaf1 to Leaf2
(a couple leafs for fall terrains), Rocks1, and underneath there is
a independent Water table layer. All of the plug-ins used are the
standard plug-ins shipped with Max 3 (and should work in
Max 4 too). There are 4 max project files providing similar starting points. The question
is "where do you want to start?" (I recommend starting with Framework_Detailed60x40 IF
your CPU is at least 850 mhz or higher, else
Framework_Medium.max might be faster for you). The differences are:
1. Framework_Plain.max: Plain
version
a. Does not have any default external image files (you have to add) b. Only about 10% of objects are being displayed by proxy. c. Ground is 100 x 100 in size, broken down to 25 x 25 segments. d. Default mesh totals (14,844 Polygons) 2. Framework_Medium.max: Images textures exist, but display is proxy. a. Does have default external image map files defined. b. Only about 10% of objects are being displayed by proxy. c. Ground is 100 x 100 in size, broken down to 25 x 25 segments. d. One light has been added (though recommend be adjusted) e. Default mesh totals (14,844 Polygons) 3.
Framework_Detailed60x40.max:
a. Does have default external image map files defined. b. All objects are displayed for real in edit mode (can collapse to mesh) c. Ground is 60 x 40 in size, broken down to 60 x 40 segments. d. A few lights have been added (though recommend be adjusted) e. Default mesh totals (84,412 Polygons) 4.
Framework_Detailed100x100.max:
a. Does have default external image map files defined. b. All objects are displayed for real in edit mode (can collapse to mesh) c. Ground is 100 x 100 in size, broken down to 100 x 100 segments. d. A few lights have been added (though recommend be adjusted) e. Default mesh totals (189,612 Polygons) We spent a lot of time on this
(and we gotta make a living) so before you can download your copy of
Grasslands kit you gotta contribute at least $9.95 to
support our hard work. Shortly after payment verification you will
be able to download the software.
To license you have 2 options, either:
1. Use our automated SECURE
online credit card processing system :
- OR -
2. Send us a check or
money order for $9.95 to the address below (Make sure to indicate you want the Grasslands
software, and include a valid e-mail address to send you the download instructions).
EnchantedGoods.com
2530 White Oak Drive
Titusville, FL 32780
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