[UE5.4]I noticed the addition of neural net-related features in the UE5.4 update

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How should he use it?

Create NeuralProfile assets.

Import any ONNX model into the UE.
Publicly available models can be found here.

Set the imported ONNX model to NeuralProfile.
Next, set the NeuralProfile from the Details panel of the post-processing material.
Also check Used with Neural Networks
image

Can be treated like normal textures in post-processing materials
image

Note that input/output may require pre-processing post-processing of data depending on the model to be loaded.

For more information on how to use the system, I expect official documentation to be provided in the future.

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The video attached above uses this model converted to ONNX.

Also, as far as I tried, only the model converted from Pytorch worked and not the TensorFlow model converted.

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