I have used it in the house to help me carry things upstairs, and the climbing feature makes it safe and easy." — m Robinson ...

Usually, when coloring a shape with the color() module, the parent color overrides the colors of all children. This is often not what you want: As with all of the attachable features, these color, ...

In the example above, the cylinder's center point is attached to the sphere, pointing "up" from the perspective of the sphere's surface. For a sphere, a surface normal is defined everywhere that ...

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