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Modeling Tubular Daylight Devices  

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How do I model tubular daylight devices in Rhino, Sketchup or Revit for LightStanza?

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In SketchUp

  1. In your 3D model, place the diffusing polygons inside BELOW the ceiling at least 1/2 inch. Make sure that there are no openings on the roof above the TDD polygons so that they are fully excluded from the sun. Please see Figure 1 below.
    1. Make sure that the TDD polygons are the dimensions specified by the manufacturer. For Acuity Brands' Sunoptics® LightFlex™ Tubular Daylighting Systems, please use 24"x24" openings that are fully excluded from the sun.
  2. After you have saved your model and uploaded it to LightStanza, you can apply TDD materials to your TDD polygons. Click the Materials tab in the left toolbar, then click "Material Library" and go to "Complex Glazing (Manufacturer)" where TDD’s are listed under "Sunoptics". Apply the desired material(s) to the TDD polygons using the paint bucket. Paint ONLY the (outer) diffusing polygon with the TDD material. Only 1 polygon should be painted the TDD material. Please see Figure 1 below.
  3. Do not paint any other part of the TDD, including the inside or outside of its tube, or any part of the collector on the roof. LightStanza applies an accurate BSDF to the diffuser (step 2) only. Please see Figure 1 below. 


    Figure 1

In Revit

  1. In your 3D model, place the diffusing polygons inside BELOW the ceiling at least 1/2 inch. Make sure that there are no openings on the roof above the TDD polygons so that they are fully excluded from the sun. Please see Figure 2 below.
    1. Make sure that the TDD polygons are the dimensions specified by the manufacturer. For Acuity Brands' Sunoptics® LightFlex™ Tubular Daylighting Systems, please use 24"x24" openings that are fully excluded from the sun.
  2. After you have saved your model and uploaded it to LightStanza, you can apply TDD materials to your TDD polygons. Click the Materials tab in the left toolbar, then click "Material Library" and go to "Complex Glazing (Manufacturer)" where TDD’s are listed under "Sunoptics". Apply the desired material(s) to the TDD polygons using the paint bucket. Paint ONLY the (outer) diffusing polygon with the TDD material. Only 1 polygon should be painted the TDD material. It is important to note that since everything on a Revit model has a thickness, you must only apply the TDD material to the lowest plane on the TDD polygon. Please see Figure 2 below.
  3. Do not paint any other part of the TDD, including the inside or outside of its tube, or any part of the collector on the roof. LightStanza applies an accurate BSDF to the diffuser (step 2) only. Please see Figure 2 below. 


    Figure 2

In Rhino

  1. In your 3D model, place the diffusing polygons inside BELOW the ceiling at least 1/2 inch. Make sure that there are no openings on the roof above the TDD polygons so that they are fully excluded from the sun. Please see Figure 3 below.
    1. Make sure that the TDD polygons are the dimensions specified by the manufacturer. For Acuity Brands' Sunoptics® LightFlex™ Tubular Daylighting Systems, please use 24"x24" openings that are fully excluded from the sun.
  2. After you have saved your model and uploaded it to LightStanza, you can apply TDD materials to your TDD polygons. Click the Materials tab in the left toolbar, then click "Material Library" and go to "Complex Glazing (Manufacturer)" where TDD’s are listed under "Sunoptics". Apply the desired material(s) to the TDD polygons using the paint bucket. Paint ONLY the (outer) diffusing polygon with the TDD material. Only 1 polygon should be painted the TDD material. Please see Figure 3 below.
  3. Do not paint any other part of the TDD, including the inside or outside of its tube, or any part of the collector on the roof. LightStanza applies an accurate BSDF to the diffuser (step 2) only. Please see Figure 3 below. 


    Figure 3

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