BSLIVE 0009 / Spinning Turntable 3D Logo USDZ for AR Quick Look

[enzyme69]

#usda 1.0
(
    endTimeCode = 480
    startTimeCode = 0
    upAxis = "Z"
)

def Xform "Top" (
)
{

    def "BaseGeom" (
        add references = @/Users/jimmygunawan/Desktop/snailspindemo/snailspin.obj@</Base_BaseGeom>
    )
    {
        rel material:binding = </usd_converter_materials/StingrayPBS_0>
    }

    def "SnailGeom" (
        add references = @/Users/jimmygunawan/Desktop/snailspindemo/snailspin.obj@</Snail_SnailGeom>
    )
    {
        rel material:binding = </usd_converter_materials/StingrayPBS_1>
    }

    float xformOp:rotateY:spin.timeSamples = {
        0: 0,
        480: 1440,
    }
    uniform token[] xformOpOrder = ["xformOp:rotateY:spin"]
}

def Scope "usd_converter_materials"
{
    def Material "StingrayPBS_0"
    {
        token inputs:frame:stPrimvarName = "Texture_uv"
        token outputs:displacement.connect = </usd_converter_materials/StingrayPBS_0/pbr.outputs:displacement>
        token outputs:surface.connect = </usd_converter_materials/StingrayPBS_0/pbr.outputs:surface>

        def Shader "pbr"
        {
            uniform token info:id = "UsdPreviewSurface"
            float inputs:clearcoat = 0
            float inputs:clearcoatRoughness = 0
            color3f inputs:diffuseColor.connect = </usd_converter_materials/StingrayPBS_0/color_map.outputs:rgb>
            float inputs:displacement = 0
            color3f inputs:emissiveColor.connect = </usd_converter_materials/StingrayPBS_0/emissive_map.outputs:rgb>
            float inputs:ior = 1.5
            float inputs:metallic.connect = </usd_converter_materials/StingrayPBS_0/metallic_map.outputs:r>
            normal3f inputs:normal.connect = </usd_converter_materials/StingrayPBS_0/normal_map.outputs:rgb>
            float inputs:occlusion.connect = </usd_converter_materials/StingrayPBS_0/ao_map.outputs:r>
            float inputs:opacity = 1
            float inputs:roughness.connect = </usd_converter_materials/StingrayPBS_0/roughness_map.outputs:r>
            color3f inputs:specularColor = (1, 1, 1)
            int inputs:useSpecularWorkflow = 0
            token outputs:displacement
            token outputs:surface
        }

        def Shader "Primvar"
        {
            uniform token info:id = "UsdPrimvarReader_float2"
            float2 inputs:default = (0, 0)
            token inputs:varname.connect = </usd_converter_materials/StingrayPBS_0.inputs:frame:stPrimvarName>
            float2 outputs:result
        }

        def Shader "color_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snailspindemo/old-textured-fabric-albedo.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_0/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float3 outputs:rgb
        }

        def Shader "normal_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snailspindemo/old-textured-fabric-normal.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_0/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float3 outputs:rgb
        }

        def Shader "ao_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snailspindemo/old-textured-fabric-ao.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_0/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float outputs:r
        }

        def Shader "emissive_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_0/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float3 outputs:rgb
        }

        def Shader "metallic_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snailspindemo/old-textured-fabric-metal.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_0/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float outputs:r
        }

        def Shader "roughness_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snailspindemo/old-textured-fabric-roughness.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_0/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float outputs:r
        }
    }

    def Material "StingrayPBS_1"
    {
        token inputs:frame:stPrimvarName = "Texture_uv"
        token outputs:displacement.connect = </usd_converter_materials/StingrayPBS_1/pbr.outputs:displacement>
        token outputs:surface.connect = </usd_converter_materials/StingrayPBS_1/pbr.outputs:surface>

        def Shader "pbr"
        {
            uniform token info:id = "UsdPreviewSurface"
            float inputs:clearcoat = 0
            float inputs:clearcoatRoughness = 0
            color3f inputs:diffuseColor.connect = </usd_converter_materials/StingrayPBS_1/color_map.outputs:rgb>
            float inputs:displacement = 0
            color3f inputs:emissiveColor.connect = </usd_converter_materials/StingrayPBS_1/emissive_map.outputs:rgb>
            float inputs:ior = 1.5
            float inputs:metallic.connect = </usd_converter_materials/StingrayPBS_1/metallic_map.outputs:r>
            normal3f inputs:normal.connect = </usd_converter_materials/StingrayPBS_1/normal_map.outputs:rgb>
            float inputs:occlusion.connect = </usd_converter_materials/StingrayPBS_1/ao_map.outputs:r>
            float inputs:opacity = 1
            float inputs:roughness.connect = </usd_converter_materials/StingrayPBS_1/roughness_map.outputs:r>
            color3f inputs:specularColor = (1, 1, 1)
            int inputs:useSpecularWorkflow = 0
            token outputs:displacement
            token outputs:surface
        }

        def Shader "Primvar"
        {
            uniform token info:id = "UsdPrimvarReader_float2"
            float2 inputs:default = (0, 0)
            token inputs:varname.connect = </usd_converter_materials/StingrayPBS_1.inputs:frame:stPrimvarName>
            float2 outputs:result
        }

        def Shader "color_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snail_usdz/bamboo-wood-semigloss-albedo.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_1/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float3 outputs:rgb
        }

        def Shader "normal_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snail_usdz/bamboo-wood-semigloss-normal.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_1/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float3 outputs:rgb
        }

        def Shader "ao_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_1/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float outputs:r
        }

        def Shader "emissive_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_1/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float3 outputs:rgb
        }

        def Shader "metallic_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snail_usdz/bamboo-wood-semigloss-metal.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_1/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float outputs:r
        }

        def Shader "roughness_map"
        {
            uniform token info:id = "UsdUVTexture"
            float4 inputs:default = (0, 0, 0, 1)
            asset inputs:file = @/Users/jimmygunawan/Desktop/snail_usdz/bamboo-wood-semigloss-roughness.png@
            float2 inputs:st.connect = </usd_converter_materials/StingrayPBS_1/Primvar.outputs:result>
            token inputs:wrapS = "repeat"
            token inputs:wrapT = "repeat"
            float outputs:r
        }
    }
}

[enzyme69]

Above USDA example is referencing:

• Multiple OBJ Mesh and Grouping
• Multiple path PBR material texture map

And using hierarchy and rotation operator, it will procedurally spin the 3D AR in realtime. When converted into USDZ it will work as AR Quick Look.

[enzyme69]

FUNNY GOTCHA: Last time I check, USDZ with this type of procedural animation does not actually spin, but it works on iOS as AR Quick Look too. This is interesting!

[enzyme69]

Spin Axis and Actual Up Axis can be confusing, but here is spinning suzanne head:

#usda 1.0
(
    endTimeCode = 480
    startTimeCode = 0
    upAxis = "Y"
    defaultPrim = "Top"
)

def Xform "Top" (
)
{

    def Mesh "Suzanne"
    {xxx}

    float xformOp:rotateY:spin.timeSamples = {
        0: 0,
        480: 1440,
    }
    uniform token[] xformOpOrder = ["xformOp:rotateY:spin"]
}

[enzyme69]

NOTE: seems like referencing OBJ is crashing usdz_converter now... weird