Is it possible to get Blendshape data from motion builder to unreal?

[sadauw]

hi,

Is it possible to get Blendshape data from motion builder to unreal?

[bluerocketfactory]

We've been desperately trying too but unsuccessful so far :(

[ekorkuti]

Yes, streaming blendshapes is supported.
You need to change to "Full Hierarchy" mode from the MotionBuilder device and include the model that has the blendshapes in the hierarchy.
The blendshapes will be streamed as curves to UE4 with the name "objectName:blendshapeName"
In your UE4 project:

• Create a new Blueprint class of type "Live Link Remap Asset"
• Overwrite the "GetRemappedCurveName" function
• In the function add a Split String node with the InStr of ":" and return the Right part of the string.
  The idea is to change the Curve name from "objectName:blendshapeName" to just "blendshapeName". You can also add a check that the Left part of the Curve Name corresponds to the "objectName" so that you are changing only the blendshape curves.
• Use the created LiveLinkRemapAsset BP in the your LiveLinkPose node in the AnimBP.

[bluerocketfactory]

Hi Ekorkuti,
Thanks for the feedback.
Can we ask for a printscreen of this blueprint please?

[sadauw]

Yes, streaming blendshapes is supported.
You need to change to "Full Hierarchy" mode from the MotionBuilder device and include the model that has the blendshapes in the hierarchy.
The blendshapes will be streamed as curves to UE4 with the name "objectName:blendshapeName"
In your UE4 project:

• Create a new Blueprint class of type "Live Link Remap Asset"
• Overwrite the "GetRemappedCurveName" function
• In the function add a Split String node with the InStr of ":" and return the Right part of the string.
  The idea is to change the Curve name from "objectName:blendshapeName" to just "blendshapeName". You can also add a check that the Left part of the Curve Name corresponds to the "objectName" so that you are changing only the blendshape curves.
• Use the created LiveLinkRemapAsset BP in the your LiveLinkPose node in the AnimBP.

I am very new to unreal and having basic information.. can u please explain it in detail or share the shreenshots?

Thank you

[sadauw]

Yes, streaming blendshapes is supported.
You need to change to "Full Hierarchy" mode from the MotionBuilder device and include the model that has the blendshapes in the hierarchy.
The blendshapes will be streamed as curves to UE4 with the name "objectName:blendshapeName"
In your UE4 project:

• Create a new Blueprint class of type "Live Link Remap Asset"
• Overwrite the "GetRemappedCurveName" function
• In the function add a Split String node with the InStr of ":" and return the Right part of the string.
  The idea is to change the Curve name from "objectName:blendshapeName" to just "blendshapeName". You can also add a check that the Left part of the Curve Name corresponds to the "objectName" so that you are changing only the blendshape curves.
• Use the created LiveLinkRemapAsset BP in the your LiveLinkPose node in the AnimBP.

I have tried it as you mentioned but unable to stream blendshapes....could you please provide screenshots or project file.

thank you

[bluerocketfactory]

We've tried too and don't work!

[ekorkuti]

[bluerocketfactory]

Thanks, it works now!
Best Regards

[sadauw]

I am new to unreal, can someone detailed about attached two nodes?

[sadauw]

Its working Thank you...

[ToreHolmem]

"Use the created LiveLinkRemapAsset BP in the your LiveLinkPose node in the AnimBP."

Would you mind explaining this a bit? New to BP, sorry.

[ToreHolmem]

If anyone else is struggling, we managed to figure it out. Select the LiveLinkPose node in the animation blueprint, in the details panel you can select the remap asset blueprint.

But I have to say, this workaround makes an otherwise reliable, effecient and simple worflow rather painful. As BP's aren't my main thing, I have to bookmark this page and copy the setup each time we want to set up the plugin.

[CoolP83]

how i can remap the range and incrase it of the value that i riceve from iphone?
example: value from iphone is 0 to 1, i need increase from 0 to 2.
i can do it with "remap curve elements"?