NGINE RING DRAW
MUNAWAR ZAMAN BIN SHAHRUDDIN
Faculty of Chemical Engineering
Universiti Teknologi MARA (UiTM), Shah Alam
hat is Rendering?
• Rendering is a method by which
realistic photographic-like screens
can be produced from 3D solid
• Rendering needs practice and skills.
• Seldom used in engineering
• Rendering lights are placed in suitable positions in
3D space to give good quality lighting of the model.
• Materials & colours are added to various parts of
the 3D model to give it realism.
• Background can be added if necessary.
• A number of tools are used to achieve good
xamples of rendered
The next slides will show you
some nice examples of rendered
apping materials on objects
Here is an example of the same object with the same material, but
with the mapping of the material adjusted on the right-side object.
To properly render the block, mapping is used to adjust and fine
tune the material so that it looks the way you want it to appear. With
a little knowledge of this command, you can make your renderings
Here are the commands needed for mapping your materials:
P / SETUV
Enter this on the command line to select mapping options via
Maps individual faces of an object.
Maps any solid object with controls for width, depth and height
as well as rotation on all sides.
Allows you to map any solid object, but uses rotation only.
Maps a solid object with height and rotation only.
Note also that the mapping icons are
available on the render toolbar as a flyout.
Start by selecting the menu
option Tools > Palettes > Tool
Palettes and you will see a large
palette appear that includes the
default material library.
The palette you want for
this exercise is the one
called "Masonry - Materials
If you don't see it, click in the area shown
by the red box.
This will display a list of all palettes
Start by drawing a box that is 120 width x 120 length x 240
height and do a Zoom>Extents. Set your visual style to
Realistic (Menu: View > Visual Styles > Realistic). Switch to
the SW ISO view.
Apply a material to the
bow, for example, click
on "Masonry. Brick.
You will see the cursor
turn into a paintbrush.
Click on the box, and
Depending upon your settings it
may look something like this in a
Or this (if you’ve
The bricks are too big. You can do
some adjustment to make the
In this view, it looks like the
'rubble' of the material is
made up of small rocks that
you can't really see clearly.
What you want to create in
this exercise is a 'box of
large visible rubble'.
We'll start with the BOX MAPPING icon and then select the
box and press enter.
Select an option
copY mapping to/Reset
Select faces or objects: 1 found
Select faces or objects: 1 found (1
duplicate), 1 total
Select faces or objects: 1 found (1
duplicate), 1 total
Select faces or objects:
You should now see some new
grips on your object.
The left box shows
available with the
The right box shows
the added options
when the rotate option
(R) is selected on the
With the grips active, you will need to make the map larger by selecting
the mapping grips one at time to make the material bounding box (in
yellow) larger. Once you have finished moving a grip, click in the
drawing space to release it. Note that there is one on the top as well
(for height) as well as the four at the bottom. When you are happy with
the look, press ENTER to end the command.
Your new and improved box could look something like
the one on the right:
The other option is the PLANAR MAPPING command.
It works a little differently than the others in that adjusts the material on
one face only instead of the whole object.
Draw a cube 120x120x120. Apply a material to it that has some contrast to
it so you can see the results clearly.
Start the Planar Mapping Command using this icon:
Instead of just selecting an object, press the Control Key as you click the
box and you will see that only one face is highlighted.
Click on the face that you want to map.
From there, you will see that you have the same resize and rotate grips
available to you, but will only affect the one face you selected.
Using the M
To access the materials pallette,
do any of the followings:
• Command: materials
• Pulldown menu:
• Render toolbar icon
You will see this control panel
There is the list of defined
materials on the upper part of
panel, and there is a small Swatch
menu under it.
There are material templates,
light properties, texture
properties and opacity and
bump map properties on the
We will first see how to create a simple
To create a new material, we are using
‘Create New Material’ in the small menu.
In this exercise, we will create a pink plastic
material, let’s name the material as ‘Pink
New material will immediately appear
in the list (shown as a grey sphere by
The most important property of render material is light they reflect. It is
same in real life, different materials also reflect light differently.
During RENDER, we call this property ‘diffuse’.
Our material is created as grey by default. But as we want it to be pink,
then we should click ‘diffuse’ then select pink from the color box .
Even now, we already have a half matte pink.
Let’s draw a sphere on screen and assign this material to it.
Click on the new pink material, then click on
‘Apply materials to Object’, then click on the
After assigning is complete, then we get what is shown:
You can also adjust the shininess, opacity, etc.
Set your visual style to Realistic (Menu: View > Visual
Styles > Realistic). Switch to the SW ISO view.
Adding new materials
• AutoCAD's materials don't really have a
large selection. What if you need a white
stucco material for a wall? Or grass for the
lawn, or brushed aluminum, ..etc.
• What you need to do is create your own
• But what if want something totally
different? Then you have to make a new
• Pick on any images, (sky for this example) right
click on the image and select "Save image as..."
and save it in a folder where you can find it
• To create a new material from the newly saved
image, open the materials palette and click New
Material button. This will open a dialog for
Click on the Select button in the Diffuse
map section. Select the saved sky image.
You should notice a new ball in the
top section that has the material
mapped to it. The clarity of the
material will depend on it's contrast
in the image and the size of the ball
in the top section.
Now is the easy part. Draw a solid object of some kind. Highlight your new
material by clicking on the ball. Next click the Apply Material to Object button.
Finally, select the object.
Another option to get the
materials set in scale to the object
is to use the "Scale to Object"
setting in the Materials Palette.
This is found after you have
created a new material next to the
Select... button which will open up
the Adjust Bitmap dialog
extures in the W
• There are various websites in the
Web that offers textures for AutoCAD
• An example page:
• Google to find more free goodies in