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Object Mass

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Using the llGetMass function, different object masses were taken and recorded.

Different primitive types have different densities.

Mass has a minimum value of 0.001 for all prim types. It seems this means that a prim below a certain size (usually at or around 0.1) has an exponentially increasing density.

A cylinder of size <0.01,0.01,0.01> has a density of 1273.239502Lg/m3! (Normal cylinder density is 9.207253Lg/m3.)

Note: Lg stands for Lindogram, the basic unit of mass for SL. It is not the kilogram, as working with physics equations shows.

Material Density

  • Cube: 10Lg/m3
  • Sphere: 7.86Lg/m3
  • Cylinder: 9.21Lg/m3

Cube

Size
(m)
Volume
(Lg)
Mass
(m3)
<.1,1,1> .1 ~ 1.000001
<1,1,1> 1 ~ 10.000005
<1,5,10> 50 500.000305
<10,10,10> 1000 10000.00585

Sphere

Size
(m)
Volume
(Lg)
Mass
(m3)
<1,1,1> .523598 4.114903
<2,2,2> 4.1887 32.919
<3,3,3> 14.1300 111.1023
<5,5,5> 65.41 514.36
<10,10,10> 523.333 4114.9023

Cylinder

Size
(m)
Volume
(Lg)
Mass
(m3)
<1,1,1> 7.23136 0.78539815
<2,2,2> 57.850883 6.283185
<3,3,3> 195.246750 21.205750
<4,4,4> 462.807068 50.265484
Cube material density: 10Lg/m3 Sphere material density: 7.86Lg/m3 Cylinder material density: 9.207253 Lg/m3

Physics notes

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