M4A9 - Simulating grass - Scattering grass for the lawn Video Lecture | 3DS MAX - Architecture Design Tutorial (Introductory Course)

in this class we will learn about
duplicating and scattering objects
around the scene so that it simulates
grass
there are several ways to perform this
process in digital mock-ups and we're
going to use the scatter method which is
essential in applying other techniques
we're going to study so let's see how it
works
see in this displayed scene the terrain
has been modeled according to the
original design you can also see the 3d
grass model that will be used in the
matrix
after selecting the terrain tool convert
the structure to an editable poly this
procedure will be applied so that we can
configure the model mesh correctly
assess the graphite modeling tool and
click topology this option adjust the
mesh to the model
click edge direction see how the mesh
adjusts correctly and displays polygons
on the four edges
after the polygon selection mode is
enabled then selecting empty places
where the house isn't placed like this
after the faces are selected unselect
the polygon selection mode without
unselecting the faces now attribute the
grass model and scatter it around the
terrain
select the grass select the compound
object on the create tab and select
scatter
now our single grass object becomes part
of the mesh click pick distribution
object
unselect perpendicular in the
distribution object parameters group and
select you selected faces only and the
even option the parameters for
scattering the objects are already
enabled type 20,000 in the duplicate
field then 20,000 strands of grass will
be scattered all over the terrain
initially input
values for the scene as high numbers
require more processing power and made
the computer work slower
we recommend beginning with smaller
amounts and then increasing the maximum
number for scattering is 65,000 copies
in order to make the grass look more
random and realistic you change these
fields to rotation and scale to position
the grass more evenly
let's change the rotation values on the
z axis like this we can see the grass
looks different here and much more
realistic
save the terrain file as grass underline
terrain so now the grass has been
inserted in the scene
notice how the grass creation has been
designed in a separate file this was on
purpose as scattered grasses or other
objects require much more computer
processing
one solution for this is to import the
grass as xref xref objects are not
really part of the scene but they are
only displayed and then require much
less memory
so in this class we created the grass
using the scatter system
we also studied about inserting
components into the interface made up of
many objects without depleting the
design processing performance
this issue on processing depends on the
performance of each computer
resources such as these will streamline
our modeling process for future
rendering