Houdini Object Build dark in UE4?

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Howdy Gang,

Hopefully I'm just suffering from a base case of delirium.
When I bring in a Houdini Object into UE4 and assign a simple, non-metallic material to the object, everything is fine until I bake the lighting in the scene. The objects become dark; like the albedo has just been reduced.

In this image, the cube is a stadard UE4 cube, all the other objects are Houdini,

Can anyone please explain why this is happening?

Attachments:
DarkBakes.jpg (569.9 KB)

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Ok - I think I may have figured out a work around. I thought this phenomenon had something to do with the normals and how they were being calculated in the conversion. Turns out that the only reason why the assets were croaking during the bake is the Houdini assets, by default, don't have any texture information. Gotta slap some UV information in there otherwise the assets croak during the bake. Who knew?

(I want three hours of my life back! )
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