It actually depends on the software you use. The one I use recommends me to use a keyboard with a numeric pad and a 3-buttoned mouse. Any platform will usually do.
The best for 3d rendering: Processor: Intel Core i7 Extreme Edition Motherboard: Intel DX58SO Memory: Kingston KVR1333D3N9K2/4G (This Motherboard support 4 memories. total 16GB) Graphic Card: NVIDIA...
2d art is flat it is only length and width it is only 2 dimensional, 3d is more in depth and detail to make it seem more realistic which is 3 dimensional.
Not always. The best art is the art you find most attracting. You don't always have to follow the crowd. It is sometimes best to find your own way. Read the poem by Robert Frost, "The Road not Taken."