PcoWSkbVqDnWTu_dm2ix
Building Unique 3D Objects
Part 2 - Building an Arch
Building Unique 3D Objects
Part 2 - Building an Arch

An arch is a common structural element that is easily built using solid modeling tools.

alt

Create Parts

A basic arch requires three parts to assemble.

  1. Insert a Block part and scale it up to approximately the size of a door frame.

  2. Insert a Cylinder part and scale/rotate it to intersect the center of the block. Make sure this cylinder extends completely through the block.

  3. Insert another Block part and place it beneath the cylinder. It should be the same width as the cylinder and its top surface should line up with the vertical center of the cylinder.

    alt

Negate Hollow Regions

To “remove” regions that should be hollow, you’ll need to designate the negate parts and then union all pieces together.

  1. Select both the cylinder and the smaller block.

  2. From the Model tab, click the Negate button. This will turn the parts translucent and red.

    alt

    alt

Union All Parts

To complete the arch, finalize the colors and materials of the arch and then Union all three parts together.

  1. Select all three parts.

  2. From the Model tab, click the Union button. This will “remove” the two negated parts, leaving an open path for players to walk through the arch.

    alt

    alt

The arch is complete! As a unioned model, it becomes one single object in the workspace, versus a grouped model of multiple parts:

alt

Further Examples

Bowl

1
2
3

Half Pipe

1
2
3

Gear

1
2
3

Previous Page Getting Started