USD with visibility key on Mesh?

[han_ho]

Hey,
I am having trouble to render a USD file, containing a mesh with visibility key, in Vray Maya.
The USD file works on VRAY houdini, Maya arnold. It's just not working in VRay Maya.
Is this a limitation of VRay Maya USD?

I am testing with V-Ray 6 for Maya(v6.00.03 from Dec 6 2022), hotfix 1, Maya 2023.3


Can't upload usda file here, so I just paste my simple USDA content here, if any one want to try it out.

#usda 1.0
(
defaultPrim = "pCube1"
endTimeCode = 2
framesPerSecond = 24
metersPerUnit = 0.01
startTimeCode = 1
timeCodesPerSecond = 24
upAxis = "Y"
)

def Xform "pCube1" (
kind = "component"
)
{
token visibility.timeSamples = {
1: "inherited",
2: "invisible",
}

def Mesh "pCubeShape1" (
prepend apiSchemas = ["MaterialBindingAPI"]
)
{
uniform bool doubleSided = 1
float3[] extent = [(-0.5, -0.5, -0.5), (0.5, 0.5, 0.5)]
int[] faceVertexCounts = [4, 4, 4, 4, 4, 4]
int[] faceVertexIndices = [0, 1, 3, 2, 2, 3, 5, 4, 4, 5, 7, 6, 6, 7, 1, 0, 1, 7, 5, 3, 6, 0, 2, 4]
rel material:binding = </pCube1/mtl/initialShadingGroup>
point3f[] points = [(-0.5, -0.5, 0.5), (0.5, -0.5, 0.5), (-0.5, 0.5, 0.5), (0.5, 0.5, 0.5), (-0.5, 0.5, -0.5), (0.5, 0.5, -0.5), (-0.5, -0.5, -0.5), (0.5, -0.5, -0.5)]
texCoord2f[] primvars:st = [(0.375, 0), (0.625, 0), (0.375, 0.25), (0.625, 0.25), (0.375, 0.5), (0.625, 0.5), (0.375, 0.75), (0.625, 0.75), (0.375, 1), (0.625, 1), (0.875, 0), (0.875, 0.25), (0.125, 0), (0.125, 0.25)] (
customData = {
dictionary Maya = {
token name = "map1"
}
}
interpolation = "faceVarying"
)
int[] primvars:st:indices = [0, 1, 3, 2, 2, 3, 5, 4, 4, 5, 7, 6, 6, 7, 9, 8, 1, 10, 11, 3, 12, 0, 2, 13]
}

def Scope "mtl"
{
def Material "initialShadingGroup"
{
}
}
}

[Dimitrina.Milanova]

Hello han_ho,

Can you please give us a bit more information about which visibility you are aiming to export (the one from the 'Display' drop menu of the mesh, the 'Object Display' menu, or it is another) ?
Also are exporting via MEL or via File > Export All../Export Selection... options in Maya?
If possible also can you please send us a scene here or to our support team so we can have further look into the problem?

Kind Regards,
Dimitrina Milanova

[han_ho]

Hey Dimitrina,

It's just a visibility key on object's transform. I'd tried export USD from Houdini and Maya, I use Export Selection... options in Maya.



If I load the usd file with visibility keys into maya, I can see the visibility works on viewport, just not working while rendering with VRay.
Can't not send you a file here because Upload Attachments only allow image file for some reason??
I can definitely send a usd file to the support team, Where I can upload my file?

Best,

Han Ho

[hsz]

Here is the file - Arnold works Vray does not

[han_ho]

Wow, just realize upload attachments only takes image file or zip. I was trying to upload 7z file format and failed.
But here it is, a simple usda file that has visibility key on frame1(on) , frame5(off), and frame10(on)

simple_cube_vis_frame_hide_on_frame5.zip

Best,

Han Ho

[Dimitrina.Milanova]

Hello han_ho,

I have looked further into the problem and our developers logged an issue into out system.
Here is the issue tracker ID: (VMAYA-12112).

Thank you for reporting this problem.

Kind Regards,
Dimitrina

[han_ho]

Hey Dimitrina,
Sorry for this super late reply.
We almost finish a project using USD with Vray 6.00.03, and I have to say, visibility key is a must have in USD workflow. We ends up having tons of expressions and usd files, so we can add visibility keys in Maya.
Is there a place I can track the progress of this issue tracker ID: (VMAYA-12112)?

Best,

Han