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DIALux evo Tutorial 02
Ezzat Baroudi
DIALux evo Tutorials
Tutorial 2
How to create a cove light detail
In this tutorial you will learn the following commands.
1. Using help lines
2. Using ceiling.
3. Using cutout
4. Using Boolean operation
5. Some other command
There are two types of cove light in terms of light distribution inside a room
 Outside cove light that distribute lighting to the walls
 Inside cove light witch distribute lighting to the room
Outside cove
Inside cove
How to create an outside cove
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DIALux evo Tutorial 02
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Using help lines
For this tutorial let’s say that we don’t have a cad drawing, but you know the
offset form the wall of the cove which is 500 mm all around the room.
1. Make sure you are on construction
mode
2. Go to help line tool (2).
3. Select line command (3)
4. Draw the line at the boundary of
the room form one corner to
another (4)
5. Set the offset as 0.5 m form
parallels spaced apart (5).
You can make many lines but for
this tutorial we need to keep it 1.
6. If the second line is place outside
the room rotate the line to be
inside the room, alternately make
the offset value in minus (-0.500
m).
7. Repeat the previous steps to have
4 lines around the room.
Tips:
 You can also you grid help line
and set x,y to 0.5 m each.
 If the cove is round you can select
a circle help line.
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Now the boundary of the cove is created by the help line the next step is to create
the cove
Creating the cove
Go to ceiling tool and then click the left button of the mouse in the room to
select the room, and then select draw new ceiling command as illustrated below
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Draw the ceiling by click the left mouse on the four corners of the cove boundary
and then right click to select CLOSE POLYGON
Now a new property window will appear while the ceiling is selected
For this tutorial, the value of the false ceiling
will be same as default values; however the
side offset will be 0.25 where we can use this
space for luminaires.
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Tip: use the CTRL+T to open a new tap where you can keep one tab for plan
another for side view and may be another for 3d view.
Now the cove is created as you could see form the side view
We are missing the edge of the cove.
Creating the edge
To create the edge you can place a cube and scale it to the required diminution
Select the depth to be around 15 mm
(0.015 m), the height is 150 mm
(0.15 m).
For the length you can put it directly
or use the scale tool
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Now align the four edges to the cove
1. Go to copy and arrange tool.
2. Select the edges and the cove.
3. Align to top.
4. Align to bottom.
Tip:
If you align to bottom without the
step 3 then the cove will get to
lower level.
Adding cove lighting.
Go to LIGHT mode
Select the luminaire and then select a
line draw the line form one point to
another
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Put the quantity as required to keep
the luminaries in a continuous
arrangements.
Tips
 You can click on the arrows to
see more options of position
and rotations.
 ARRAIGNMENT: allow you
to choose the distance to be
between center to center or
edge to edge etc.
 ROTATE: allow you to
quickly and easily rotate the
luminaires.
Go to DISPLAY OPTIONS in the
right corner of the software interface
and activate Show Light
Distributions Curves.
Select the luminaire to see if the light
is going up to the ceiling or down.
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It the light is going to the floor rotate
the light by clicking on the arrow of
rotation and rotate 180 degree on x or
y
After rotation make sure the light
destruction is changed to ceiling.
Move the luminaires to be inside the
cove up.
Tip:
Select the blue arrow to move the
luminaires only in z direction.
If you select the green triangle then
the luminaires will move in more than
one axis.
Copy this line to the other area and modify the quantity as required
Changing the color temperature
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1. Make sure you are in the
LIGHT mode.
2. Go to lamps and select all the
luminaires you want to change.
3. Go to correct and click on the
word CORRECT.
4. Select the lamp type of the
color temperature.
5. Select the value of the color
temperature.
It is VERY IMPORTANT to
click on apply otherwise nothing
will be changed
Start calculation
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Creating inside cove
Go to ceiling tool and then click the left button of the mouse in the room to
select the room, and then select draw new ceiling command as illustrated below
Keep the same value as default.
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In the plan view create a grid help line with 1x1 meter; draw the grid form point
1, point 2 and finally point three as illustrated below.
You can always rotate the grid after you finish it. Form the property window in
the upper right, but now you don’t need to rotate if you draw in the order shown
above.
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In the 3d view go to cutout tool and select rectangular cutout and draw in the
false ceiling in 3d view as illustrated below
Go to plan view and edit the cut out move the cutout to be 2x3 using
the grid help lines
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Go to 3d view and see the shape it should be similar to the one below
Tips
 If you the cutout selected you cannot see the details change the tool to a
different tool to be able to see clearly.
 Change the color for the apper part to see the details.
Now you have a cut out but no edges
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Creating the edges
Ezzat Baroudi
Insert cube and scale it to cover
the cut out area, make the height
0.15 m which is the height of the
edge.
Copy the cube or insert a new
cube and make it bigger by 30
mm in x and y
30 mm to allow for 15 mm
which is the thickness of the
edge.
1. Select both objects and
go to copy and arrange
tool
2. Click on subtract tab
3. Select the object to
remain.
4. Look at the view the
object to remain should
be in dark red
Click on subtract button.
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Insert anther cube with a dimension bigger than the cutout opening by
250 mm form each side, the x,y of the cube will be 3.5, 2.5 m
respectively, the height should be 0.3 m
Create another cube bigger than the last cube by some value, it dosent
matter the value but should be bigger thencut the last two cubes to
keep the bigger one as a boundary, make sure the red is the outer one
Now you have the edge and the back boundery of the luminaires as in
the next image
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You can combine both objects by copy and arrange tool and then
combine tab combine
Move the combined object to the ceiling
You can align the object to false ceiling by using align command in the
copy and arrange tool.
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Add the luminaires as explained in the outside cove and start
calculation.
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