A 3D Studio Max Tutorial
This tutorial shows what you can
do to make your objects look old and how to use light and volumetric
effects to render a picture with a right mood.
Let's start with the objects: usually
3D objects look very clean and sharp. This can be ok for technical
drawings, but not in an old house where everything has signs
of time, objects are dirty and spoiled. Look at the picture
Walls near doors and windows are
jagged and thanks to this simple trick they look much better.
Creating such objects is very easy - you create straight line
with many vertices, add noise modifier and then lathe. You can
do this with a cylinder too. Then you just boolean/subtract
such object from the wall corner and that's it.
Now the lights. In our scene there
are no light sources inside the room, all lights are from outside:
windows and door. Lights must cast shadows of course. To make
the shadows softer increase the Smp Range to 6-10 or even more
(this is just in the bottom of light's parameters). But the
scene with only these two exterior lights will be completely
black in areas where there is no light casted. This is why you
have to add some ambient light to the scene. I usually use two
directional lights one from left-bottom corner and second from
right-top. I use overshot on for these ambient lights, this
makes they have infinite radius, so they illuminate entire scene.
Also in Environment menu there are two useful settings: Ambient
and Tint. Be careful with using too bright environment ambient
color because it flattens all other colors, lights and shadows
in your scene. Moody lighting can't be 100% gray, it is always
colorize in some way. Night scene in old house needs some cold
color, ie. blue. Not nice saturated blue, but deadly pale blue.
So add a little blue tint to all your lights (very little because
when lights are too much blue all your scene will become blue,
and we only want slight blue tint). You can also use the Tint
color in Environment menu to add extra mood - also bright blue
color and tint Level between 1 and 1.5. When all lights and
tint colors are adjusted your scene should be dark, but with
some visible details, like this:
Now the textures: old and dirty
textures usually can't be made with one simple bitmap. They
require some more advanced composition. Look at the wall below
- it has many textures: wallpaper and bricks, water stains,
cracks, and some extra dirty look - and it is only one object
with one material.
Near the wall picture there is
a Material/map Navigator screenshot, it shows how the material
has been build, i marked maps with numbers so I can easier refer
to them. Now a few words of explanation: It is a Standard material,
with bright gray diffuse color and shininess = 0. Diffuse map
is a Mix map (1). This lets you use two different maps on the
same object, and you can use a grayscale aplha channel to mask
(mix) both maps. This map contain three submaps: wallpaper (2),
bricks (3) and alpha channel map (4) - you can see the (4) map
on the picture near. As you see bricks and mask are just
bitmaps, but the wallpaper is more complex map - it is a Composite.
Mix lets you use two different textures in different areas of
the object. Composite map lets you put many (in this case three)
maps in the same are, one over another. First submap of the
composite is on the bottom, here on bottom we have the wallpaper
texture, a bitmap (5). If you download the sample scene and
open the Material Editor on this map, go to the Output parameters.
You will see that the Output of this map is reduced to 0.5.
This means that only 50% of this map is visible, and 50% is
taken from map below it (in this case it is the material's diffuse
color). In this way you can easily tint the bitmap with material's
color or other map below it. Next map in the wallpaper composite
is dirt map (6) - it is a procedural noise map, it's output
is also reduced to 0.4 so the bitmap is visible under it. The
noise is black and white, it adds some dirty look to the previous
bitmap. And finally the
3rd map in the wallpaper composite: it is Mask (7). This map
adds water stains on the wall. Mask compositor lets you use
any map with alpha channel taken from other file, the alpha
channel (mask) generates local transparency of this map. On
the picture near you can see the stains mask. So the noise texture
(8) generates dirty water stains and the alpha channel (9) masks
them to limited area on the wall. An finally the cracks: it
is just a bitmap used as bump map (10).
Floor, ceiling and door are standard
textures from MAX Material Library. I also added an environment
map simulating stars on the sky (it is a procedural noise map).
The scene is almost ready:
The scene looks pretty nice already,
but still the air inside the room is too clear. We have to add
volumetric effects to simulate dust in the air. Go to Rendering/Environment
and add Fog. Use dark, almost black blue (not too much saturated),
near range 0%, far range about 50%. In camera settings define
Environment Ranges Near = about half the room, and Far near
the back wall. This will simulate effect of dusty air, where
visibility in not 100% and things that are farther are less
visible. Now add Volume Fog (create a box gizmo - Create/Helpers/Atmospheric
Apparatus/BoxGizmo wider and longer than the room, but height
only about 1/4 - 1/3 of the room), use maximum Soften Gizmo
Edges and some fractal noise. This will simulate the dust hovering
in the room. And finally Volume Light, and pick the lightsource
shining from behind the window. Use rather low Density between
about 1 and 2, and reduce Max Light to about 20-40% (to avoid
too dense fog in the room and behind the window). Also the Volume
Light should have some fractal noise to make it less uniform
A few more tips: Use camera with
large FOV, bigger Field of View angle gives you more "dramatic"
perspective, more overwhelming mood. If you want to add any
light sources inside the room remember to use attenuation and
Now the scene is ready, your rendering
should be similar to this one:
Click here to see an AVI (1223k)
or MPEG (605k) of the room.
Big thanks to Lou for suggesting
me the idea for this tutorial.
MAX 2 scene 99 KB
Note: following bitmaps are not included in
the zip file because they are standard bitmaps from 3D Studio
MAX CD-ROM: blckcrak.jpg, sunset90.jpg, burloak.jpg, oldwood.jpg