Exported files can't be opened in Reality Converter because of wrong type for Color (FTV-662)

[hybridherbst]

Apple's Reality Converter is very picky about data types.
usd-for-unity uses types a bit incorrect, e.g. diffuseColor is a float3 and not a Color3f (according to spec, it must be Color3f).
This prevents RealityConverter from importing the files.

[jcowles]

IIRC, this was a change to the preview surface spec when Color3f was added, but yeah, strictly speaking we are not adhering to the spec:
https://graphics.pixar.com/usd/docs/UsdPreviewSurface-Proposal.html

We should fix it

[riemaeker]

We are also running into this issue, and additionally had to update normals data to use a specific type as well (float3 to normal3f). So these are the manual changes we had to make to our USDA (exported with 1.0.3-preview.2) to get it imported without errors in Reality Converter (version 1.0 (20)):

float3 inputs:diffuseColor → color3f inputs:diffuseColor
float3 inputs:specularColor → color3f inputs:specularColor
float3 inputs:emissiveColor → color3f inputs:emissiveColor
float3 inputs:normal → normal3f inputs:normal

[judubu]

Thanks for the update. A fix for this won't be available in the next release but we'll schedule it for the following one.