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Figure 22.4
Backgrounds bound and unbound by touching a red cube or a blue sphere. |
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Click on the image to view the VRML scene. |
#VRML V2.0 utf8 # The VRML 2.0 Sourcebook # Copyright (c) 1997 # Andrea L. Ames, David R. Nadeau, and John L. Moreland Group { children [ # Initial background Background { skyColor [ 0.0 0.2 0.7, 0.0 0.5 1.0, 1.0 1.0 1.0 ] skyAngle [ 1.309, 1.571 ] groundColor [ 0.1 0.1 0.0, 0.4 0.25 0.2, 0.6 0.6 0.6 ] groundAngle [ 1.309, 1.571 ] }, # Alternate backgrounds DEF AltBack1 Background { skyColor [ 1.0 0.0 0.0, 1.0 0.4 0.0, 1.0 1.0 0.0 ] skyAngle [ 1.309, 1.571 ] groundColor [ 0.1 0.1 0.0, 0.5 0.25 0.2, 0.6 0.6 0.2 ] groundAngle [ 1.309, 1.571 ] }, DEF AltBack2 Background { skyColor [ 1.0 0.0 0.8, 0.5 0.0 0.8, 0.0 0.0 0.8 ] skyAngle [ 1.309, 1.571 ] groundColor [ 0.0 0.0 0.1, 0.0 0.1 0.3, 0.3 0.3 0.6 ] groundAngle [ 1.309, 1.571 ] }, # Shapes to act as buttons Transform { translation -2.0 0.0 0.0 children [ Shape { appearance Appearance { material Material { diffuseColor 1.0 0.0 0.0 } } geometry Box { } }, DEF TouchBox TouchSensor { } ] }, Transform { translation 2.0 0.0 0.0 children [ Shape { appearance Appearance { material Material { diffuseColor 0.0 0.0 0.8 } } geometry Sphere { } }, DEF TouchSphere TouchSensor { } ] } ] } ROUTE TouchBox.isActive TO AltBack1.set_bind ROUTE TouchSphere.isActive TO AltBack2.set_bind