We will render a 3D model at two different times of the day:
1. We open the drawing A3D_10_02.DWG of a simple house.
2. Applying a render, we will see the model, but only with the default lighting.
3. With SUNPROPERTIES, we turn the Sun light on in
Status. We choose 09:00
in
Time
and render again. We maintain the date 21-09-2012. We get
shadows but the result is not very good, as they are completely black.
4. Let's activate photometric lighting to get sky light. With the UNITS command,
in
Lighting
we select
International. The
Sun Properties
palette displays the
Sky Properties
panel.
5. However, the
Status
option in the
Sky Properties
panel is
Off
and cannot
be modified. We need to set 1 as the PERSPECTIVE variable and zoom out
to see the model. If the mouse wheel increment is too much, we apply the
Realtime
option after using the ZOOM command. When we click on the small
icon on the right of the
Sky Properties
panel now, we finally get the
Sky
Background and Illumination
option on the window that opens.
6. Now, we are going to choose the location. Still on the
Sun Properties
palette,
we pick the
Geographic Location
button and confirm
Enter the location
values.
7. Through
Use Map, we specify Barcelona's location and time zone (GMT
+01:00) and confirm the time zone modification and the geographic location.
8. Finally, we get renders at
09h00
and
18h00, and the quality is much better.
9. If we rotate the view to the right, we can see and render the solar disk.
10. We save the drawing with the name A3D_10_02final.DWG.