The Velux Daylight Visualizer allows users to import 3D models to simulate daylight conditions. It has tools for adjusting the viewport perspectives, setting the location and orientation of the model, defining material properties, and adjusting rendering quality and output resolution. Users can simulate different sky conditions, times of day, and dates to analyze daylight exposure and render images or animations of the results. The render output can be studied in false color or iso contour views and saved as an image file.

1. Velux Daylight Visualizer

3. To import sketchup
models or other 3d
models

6. Major Tabs of Velux
Plan View port
3D view port
Section view port

7. Adjust to set the
Desired sectional
view
Adjust to set the
Desired Floor Plan
level
Adjust the scale if
the model scale
differs from the
original

9. Set the preferred sky
condition

10. Define the surface
material properties
for better results

12. Select the
appropriate site
location if found in
the list, or select
custom.

13. If custom is
selected, enter the
longitude and
latitude position.
If the model is not
oriented exactly,
Enter the proper
North orientation
angle.

15. Set the area
to be
analysed by
adjusting the
four sides

16. Similarly set the
area in the cross
section view

17. This is the Camera
used to set the
perspective view
Hold and drag to
pan the camera
Hold to
rotate
the
camera
Move up and
down to
Adjust the
camera
height
Live
update
of the
camera
view

18. Enter lower value
for wider angle

19. Enter higher
value for narrow
and closer view

20. Based the
requirement set
the render
quality, this also
affects the
render time as
the quality
increases.
Set the
Sky
condition
Select the
time and
day of the
year to be
simulated
Set the required
output image
resolution, set low
for faster output,
set high after all the
corrections, select
custom to enter
desired resolution
size.

21. To get the annual
over view, set the
time of the day to
be simulated and
click on render

22. To create an
animation video of
the day light
condition for
desired time range.

23. This window opens
when render is
selected. Wait until
the Render is 100%
complete.

24. The Render is 100%
complete.
The output can be
studied in detail
with 2 types – False
colour and ISO
Contour. Exposure
can be increased if
the image is too
dark.

25. Select the False
Colour and Set the
min and max
level, where Blue
indicate minimum
and Red indicate
maximum Lux
level.

26. Select the ISO
Cotour and Set the
min and max level,
where Blue indicate
minimum and Red
indicate maximum
Lux level.

27. Increase the
exposure value to
view the contour
lines more clearly

28. Click on File and
save the output
image.
To know the lux
level at particular
points, just right
click on that
particular points,
to remove these
points click on
Clear below the
output image.

29. Thank You