B. Preparing the model
- This is how my model looks like
after all the layers are imported.
- Next to do is to check to make
sure all the normals of the surfaces are facing the right
- The best way to do this is to
isolate each layers and check them one at a time.
- Click on one or more surfaces
to select them, then right click with your mouse and choose
- You may see some surfaces will
turn green at time. This means that those surfaces are oriented
the wrong way.
- From the Surface Orientation
(Figure e) dialog, click Reverse to flip these
surfaces. From this dialog, you can keep selecting other surfaces
and flip them. Orbit around your model to see other surfaces
that might be hidden in the current view. Another option you
have is to the Auto Orient button. As this button
denotes, Light* will automatically flip the normals of the
entire model for you to face the right direction. But I only
use this sparingly because it is not very accurate if your
view is not close enough to the model.
- Keep flipping the normals for
all your layers until everything is oriented the right direction.
- Note: If youre
planning to do a scene with daylight, select all your window
surfaces. Right-click on them and choose Process Control.
From there you can choose to check Window or Opening,
depending on your scene.
Another thing you should keep
in mind is when modeling glass panes for a window. You should
model the glass with an actual thickness rather than keeping
it to a single line. This will allow Light* to do a more