In the VIOSO software , you can import custom 3D models for your calibration alignment. In this article, we show you an example how to create a model of a cylindrical screen using SketchUp®.

• Get the radius, height, and view angle from your screen. Use mm and degrees.
• Draw a circle in the x-y-plane. Key in the segments first, like 360. Then click to the center and
  key in the radius.
• Use protractor tool to find the view angles.
• Draw a line connecting the intersection points.
• Remove ledgers and the unused arcs.
  
• Extrude to screen height.
  
  
• Remove top and bottom line.
• Reverse faces.
• Create a material using a texture. Be sure to make its size like your screen: w = radius * viewangle * PI / 180.
  
  
• Every part of the screen needs to be covered by the texture — no tiles. Every part of the screen needs its own texture coordinate.
• Make a component.
• Rotate the component around x-axis to make x (red) point to the right, y (green) pointing up, and z (blue) going back.
• Export to dae.