Basic Examples (4) 

A unit rounded cuboid:

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Rounded cuboids with different sizes:

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Differently styled rounded cuboids:

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Rotated rounded cuboid:

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Scope (8) 

Specification (3) 

A rounded unit cube:

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A rounded cuboid parallel to each axis:

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Short form for a rounded unit cube cornered at the origin:

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Styling (5) 

Color directives specify the face colors of cuboids:

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FaceForm can be used to specify the styles of the faces:

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Different properties can be specified for the front and back of faces using FaceForm:

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Opacity specifies the face opacity:

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Decompose the cuboid into its components and apply different styling to each:

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Options (3) 

RoundingRadius (3) 

Adjust how rounded the edges are:

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Adjust the edges in each direction independently:

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Leave some edges sharp:

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Applications (1) 

A simple 3D bar chart:

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Properties and Relations (7) 

Use Rotate to get all possible rounded cuboids in Graphics3D:

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Rectangle with a non-zero value for RoundingRadius is a 2D version of RoundedCuboid:

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Cuboid is a special case of RoundedCuboid:

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Cylinder can be viewed as a special case of RoundedCuboid:

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Sphere can be viewed as a special case of RoundedCuboid:

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BarChart3D or RectangleChart3D can be used to create rounded cuboids:

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Get the graphical primitive for BarChart3D:

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Compare with RoundedCuboid:

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The two cuboids have a very different internal structure:

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Possible Issues (2) 

When the width of the cuboid is zero in at least one dimension, no cuboid is created:

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When any length of the cuboid is less than twice the corresponding setting for RoundingRadius, a warning is issued and artifacts appear:

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Neat Examples (2) 

Random rounded cuboid collections:

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Adjust interactively the rounding radii:

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