how to evaluate Fre ́chet distance (FD) for toys4k

[braodg]

Dear author,
may I ask if the FD is generated and calculated based on four different angle images of a 3D asset as conditions, or if it is generated using a single image and renders four different angle image to calculate the FD?

[braodg]

Or some other calculation method to calculate FD？

[braodg]

@YuDeng @microsoftopensource @yangjiaolong
Could you please answer the question〒▽〒

[braodg]

@JeffreyXiang please~