Rendering in SketchUp

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Part 3: Modeling Detail
Fig. 15.14: 
A backdrop image is added away from the camera view. However, the windows will capture the reflec-
tion of the backdrop when rendered.
Fig. 15.15: 
The windows and reflective surfaces (including the six surfaces set up to act like mirrors) reflect the off-
view backdrop.

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Chapter 15: Camera Scenes, Composition, and Backdrops
Backdrops
Backdrops are images or objects placed in the SketchUp model background to provide context 
and fill in gaps. Backdrops range from city skylines, vegetated yards, to views outside of 
windows and settings specific to the model. This section describes two ways to add backdrops 
to a SketchUp model (Fig. 15.16, Fig. 15.17).
Fig. 15.16: 
The rendered interior needs a backdrop (Shaderlight).
Fig. 15.17: 
A backdrop is added in Photoshop.

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Part 3: Modeling Detail
Other methods can be used to add backdrops. No one method is superior, and the use of 
some backdrops will depend on the user’s skill level (for example, knowing how to use Photo-
shop) and the desired result.
photoshop postproduction
Using a photo-editing program, you can add backdrop images to a rendering during the 
postproduction phase (Fig. 15.18, Fig. 15.19). Part 7 reviews postproduction methods you can use.
Fig. 15.18: 
Marina and buildings (Twilight Render)
Fig. 15.19: 
A backdrop is added to the rendered image in Photoshop.

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Chapter 15: Camera Scenes, Composition, and Backdrops
Irp Backdrops
Shaderlight and Twilight IRPs allow you to insert image files into a rendering (Fig. 15.20, 
Fig. 15.21, Fig. 15.22). When the rendering is processed, the image will be included in the 
background. This technique will be explained in the IRP-specific chapters.