Simulating a Night Scene with Spotlights AutoCad Help

Spotlights are lights that are directed. They are frequently used to provide emphasis and are usually used for interior views or product presentations. In this exercise you’ll set up a night view of the facade model using spotlights to illuminate the facade.

You’ll start by setting up a view to help place the spotlights. Once they are placed youll make some adjustments to them to get a view you want.

1.Choose View> 3D Viewpoint Presets >SE Isometric; then zoom into the _facade so your view looks similar to Figure 17.15.
2.Choose View> Render> Lights. Then in the Lights dialog box select Spotlight from the New drop-down.list
3.Click New. Then in the New Spotlight dialog box enter Spot-L. This designates a spotlight you will place on the left side of the facade.
4.Enter 400 in the Intensity input box. Then click the Modify< button.
5.At the Enter Target Location: prompt use the Nearest Osnap and select the point on the window as indicated. in Figure 17.15.
6.At the Enter Light Location: prompt select the point indicated in Figure 17.15.Once you’ve selected the light location you return to the New Spotlight dialog box. You can in the future adjust the light location if you choose.
7. Click OK. Then in the Lights dialog box, click New again to create another spotlight. t
8. This time, enter ‘Spot-R’ for the ~.e..•. Enter 400 for the intensity as before .
9. Click the Modify-c button and select the target and light locations indicated in Figure 17.16. ”
10. Click OK to exit the New Spotlight dialog box, and then click OK again in the Lights dialog box. You now have two spotlights on your building.
11. Choose View> Named Views and restore the 3DFront view.
12. Render the model (you should know how this is done by now). Your view wlll look similar to Figure 17.17

The rendered. view has a number of problems. First the sunlight source needs to be turned off. Second the spotlights are too harsh. You can also see that the spotlights don’t illuminate the center of the building so you’ll need to add some lighting at the entrance. These problems will be solved in the next section.

FIGURE 17.15:

FIGURE 17.15:

FIGURE 17.16:

FIGURE 17.16:

FIGURE 17.17:

FIGURE 17.17:

Posted on November 9, 2015 in 3D Rendering in AutoCAD

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