material-time#

Code

NVM.006

Validator

latest+

Compatibility

rtx

Tags

✅

Summary#

Properties must not be time-varying

Description#

Non-visual material properties cannot be time-varying since they represent static material properties that affect sensor response.

Why is it required?#

  • Material properties represent physical characteristics

  • Time-varying properties not supported by sensor simulation

  • Ensures consistent sensor response

Examples#

# Invalid: Time-varying properties
def Material "BadMaterial" (
    prepend apiSchemas = ["MaterialBindingAPI"]
)
{
    token omni:simready:nonvisual:base.timeSamples = {
        0: "aluminum",
        48: "steel"
    }
}

# Valid: Static properties
def Material "GoodMaterial" (
    prepend apiSchemas = ["MaterialBindingAPI"]
)
{
    token omni:simready:nonvisual:base = "aluminum"
    token omni:simready:nonvisual:coating = "clearcoat"
    token[] omni:simready:nonvisual:attributes = ["retroreflective"]
}

How to comply#

  • Use constant values for all non-visual material properties

  • Remove any time samples from properties

  • Use separate materials if different properties are needed