BodyTypeScale determines by which the shape of a Humanoid rig is interpolated from the standard R15 body shape (0) to a taller and more slender/realistic body type (1). Values outside of the [0-1] range are clamped. When the description is
Humanoid/ApplyDescription|applied to a Humanoid, this value maps to a “BodyTypeScales”
NumberValue within the Humanoid.
When the value of this property is 0, the
HumanoidDescription/ProportionScale|ProportionScale property does not have any effect.
In the image, three R15 figures whose
HumanoidDescriptions applied with the following BodyTypeScales values (from left-to-right): 0, 0.5, 1.0. Also visible are 6 stacked 1x1x1 cube parts for reference.
articles/HumanoidDescription System, for more information on HumanoidDescriptions
HumanoidDescription/ProportionScale|ProportionScale, which also affects rig proportions when this property is non-zero
HumanoidDescription/DepthScale|DepthScale, which provide finer control over the dimensions of a rig
HumanoidDescription/HeadScale|HeadScale, which provides specific control over the scale of the rig’s head