Nested VariantSet

[syoyo]

TinyUSDZ's ASCII and USDC parser fails to support nested VariantSet stmt.

def Xform "Implicits" (
    append variantSets = "shapeVariant"
)
{
    variantSet "shapeVariant" = {
        "Capsule" ( variantSets = "geo" ) {
            def Capsule "Pill"
            {
            }

            variantSet "geo" = {
                "CapsuleA" {
                    def Capsule "PillA"
                    {
                    }

                }
            }
        }

    }
}

Support of nested VariantSet is working on this branch: https://github.com/syoyo/tinyusdz/tree/nested-variantset

Status

• Initial support of parsing nested VariantSet in USDA parser
• Support printing nested VariantSet in USDA writer
• Support parsing nested VariantSet in USDC reader