Creating Primitives


Arrow Keys - Add / Reduce Segments

After creating the basic outline for a primitive, use the Arrow keys to add or reduce segments. The image to the right, shows a Ball object with reduced segments. This shortcut is Viewport dependent and the results may vary depending on the primitive. This technique also works with the Lathe Tool. It's great for quickly building custom shapes and keeping control over the resolution of the mesh.

Note: To deactivate a tool, click once in the blank section of the Toolbar, click twice to reset default values.

NB: Click the thumbnails, for expanded details on each entry.

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Control Key to Constrain

When creating a primitive, use the CONTROL key to drag out the shape, and proportionately constrain the dimensions of the object being created.

CONTROL also works with the Move Tool to constrain the axis of motion, when moving geometry. As an added bonus, this also works in symmetry mode.

Note: When using 'CTRL' with the 'Pen Tool' it will constrain the position of the new Point to increments which are aligned to the Grid.

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CMD + Drag to Duplicate

When creating a primitive, use the COMMAND key and drag the centre 'Move Handle' of an outline object, to create a duplicate of that primitive. This is useful to remember when creating a succession of single Points, using the Point Tool.

Note: Where I mention the COMMAND key it relates to the Mac Platform, and translates as RMB for PC Users.

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Tessellated Sphere

To create a Tessellated Sphere, use the Numeric Panel with the Ball Tool and set 'Type' to 'Tessellation'. This creates a Ball of triangles only, which are good if converting to a Sub-Patch as you'll avoid pinching around the polar ends of the Sphere.

Create > Primitives > Ball (O Key)

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Creating Primitives - SuperQuadric

To avoid smoothing problems in a SubPatch surface, it's a good idea to avoid Triangles and stick to Quads. The 'Superquadric' tool produces a donut shaped object, made entirely of Quads, which makes it an ideal base for SubPatch modeling. Experiment with the 'Bulge' settings to create some interesting variations.

Create > Primitives > More > SuperQuadric Tool

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The Importance of Edge Geometry

The Numeric Panel for the Box Tool lets you easily create a Box object with rounded edges. Simply enter the desired 'Radius' and 'Radius Segment' values to achieve this effect.

Remember the 'n' key to bring up the Numeric Panel. You'll need to use this time-and-time again, to access hidden functionality for a variety of tools.

Adding fine detail, like edge geometry, helps to create a sense of scale. Subtle rounded edges will catch specular highlights and add extra depth to your work, making it seem more realistic and less CG.

Create > Primitives > Box (X Key)

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