prim types

BIG DISCLAIMER!! Viewers are not made equal when it comes to prims & their parameters. Firestorm was used for this page.
Sculpts aren't covered here, as they're made differently and calling them prims is misleading.

Names from this part of the Build Menu are inaccurate.

Look to the Object tab of the Build Menu instead.

regular shapes

developmental shapes

Basic

Cube/Box
Cylinder
Prism

Sphere*

Sphere

Curved*

Torus

Tube
Ring

Circle2

Circle2->Square
Circle2->Triangle
Circle2->Circle*
Circle2->Half-Circle

Test

Test->Square
Test->Triangle
Test->Circle
Test->Half-Circle

33*

33->Square
33->Triangle
33->Circle
33->Half-Circle

Line*

Line->Half-Circle

*follows Basic parameters

*Sphere, Curved, and 33 Shapes are mostly interchangeable.

*Circle2->Circle technically reverts to Sphere, but still keeps it's Circle2 Shaping.*Circle->Half-Circle is entirely inoperative. ( from my own testing )

params.

basic

sphere

curved

circle2

test

33

Path Cut

🟩

Hollow

🟩

Skew

⭕

🟩

⭕

🟩

Twist

🟩

🔷

💠

⭕💠

💠

* Taper

🟩

💠

🟡

🔷

Top Shear

🟩

🟡

*Profile Cut

🟩

⭕

🟩

Taper Prof.

⭕

🟩

⭕

🟩

Radius

⭕

🟡

🟩

⭕

Revolutions

⭕

🟩

⭕

🟩

misc.

LSL Support

🟩

🟡

🟩

⭕

Flexi-Prim

🟩

⭕

💠 = exploitable

🔷 = greater

🟩 = base

🟡 = lesser

⭕ = N/A

Names of parameters change depending on the shape,

Taper = Hole Size

Profile Cut = Dimple = Slice

Some parameters rely on, or change others;

Skew & Revolutions

Taper, Taper Profile & Radius

Taper & Top Shear } specifically for Spheres & Dev Shapes

Some parameters can be exploited past their limits by switching between Prim Shapes.

In my testing I've only been able to find Twist & Taper, between Sphere & Dev types.

ex; Spheres by default have a limit of 0-1 tapering, but Dev Shapes have a limit of 0-2.

when changing a Dev Shape to a Sphere, it will keep the tapering value that the Dev shape had, exploiting past the Spheres limits.

updated 8/17/2025

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