Questions on lighting & texture

Hi,


How can I cast the harsh shadow underneath the tabletop that is near my furniture legs away?



Can anyone tell me the different/ideal usage of the type of lighting? ( Area Light / Emissive / IES Light / Point Light)



What is the common/best use for casting a shadow on furniture?



Can anyone tell me the different/ideal usage of the type of texture?


Please help.

Thanks!



I didn't find the right solution from the Internet.



References:
discourse.mcneel.com/t/questions-on-lighting-texture/36612

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