As has been said a few times in the past, to generate a player shadow you would need a character model for it to generate from, there is no character model, just a player camera so technically it's not possible.
However, using lua commands you could probably fix a model behind the camera and make it move around with you, that would generate a fake player shadow.
Primary Desktop:
i7 7700,k NV1070 8GB, 16GB 3200mhz memory, 1x 2TB Hybrid, Win10.
Secondary Desktop:
i5 4760k, NV960 2GB, 16GB 2333mhz memory, 1x 2TB Hybrid, Win10.
Laptop:
i3, Intel 4000 series graphics, 6GB memory, 1x 500gb HDD, Win8.1.
