kilograms-per-unit#
Code |
UN.003 |
|---|---|
Validator |
|
Compatibility |
core usd |
Tags |
✅ |
Summary#
Stage must specify kilogramsPerUnit to define the mass unit scale, if physics objects are present in the stage.
Description#
If there are physics objects in the stage, the stage must have a valid kilogramsPerUnit value specified to define the mass unit scale.
Why is it required?#
Mass-based physics simulations require defined units
Inertial calculations depend on correct mass units
Examples#
# Invalid: No kilogramsPerUnit specified
#usda 1.0
(
metersPerUnit = 0.01
)
# Valid: kilogramsPerUnit specified
#usda 1.0
(
metersPerUnit = 0.01
kilogramsPerUnit = 0.001
)
How to comply#
Set stage kilogramsPerUnit value
Common values:
1.0 for kilograms
0.001 for grams