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Getting Started with VNS 3: Roads & Buildings
Part 7B. Barrier Fence

1. We can't have a highway just end without warning, so let's add one. We'll use a Wall, another useful VNS feature in the 3D Object Task Mode. Right-click the Walls category and Add Component of this type. We'll use an existing vector to control it.

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2. Name it End of the Road. Expand the Walls category in the Scene-at-a-Glance.

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3. Copy the Dead End vector from the lower S@G tab to End of the Road Wall.

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4. Make the Height Relative to Ground Elevation. Increase Panel Top Height to 3 meters.

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5. Go to the Panels page and create a Diffuse Color Texture.

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6. Choose Stripes from the Selected Element dropdown list. View From the South-Y.

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7. In the Colors section, change the left pin color to white.

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8. Change the right pin color to red.

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9. Go to the Size & Position section and open the Rotation tab. Change the Y axis value to 45° to complete the warning barrier texture. Close the Texture Editor.

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10. Save the project and render a preview. The barrier is mostly hidden because it's resting on the ground beyond the highway. This will fix itself when we raise a pad for the development. We can't see the barrier texture because the Wall is lit from behind.

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11. Go to the Wall Editor Panels page and Show Advanced Features ShowAdvanced.gif.

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12. Increase the Luminosity to 50%. This is not a magical number. Like many VNS values, it depends on the scene and lighting and is the result of trial and error.

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13. Save the project and render a preview.

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14. This is a simple application of a very powerful tool. For a look at using Walls to raise city buildings, explore the NYC project in the Demos folder.


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