How Shadow Map, Sample Range and the size of the scene affects Shadows in Viz & Max.

Here is a small sample scene to demonstrate the Shadow Map and the Sample Range settings
Shadow Map 10, Sample Range 1 Very little details in the shadow's edge.	Shadow Map 10, Sample Range 4 Larger Sample Range value will try to smooth out artifacts caused by too small Shadow Map.
Shadow Map 100, Sample Range 1 Semi-large Shadow Map and small Sample Range can produce some interesting(?) shadows.	Shadow Map 100, Sample Range 4 Semi-large Shadow Map and normal Sample range can be used for nice soft shadows. In this small scene the Shadow Map size might be large enough.
Shadow Map 1000, Sample Range 1 If the Shadow Map is large enough you can get away with low  Sample Range values.	Shadow Map 1000, Sample Range 4 With large Shadow Map and normal Sample Range it almost looks like Raytraced Shadows
Below is a larger scene. The small teapot is the same as above. The shadow casting spot light have been moved away so the light covers an area that is about 5 times larger.
Shadow Map 10, Sample Range 1 Even less details in a larger scene. Small objects dosen't seem to cast any shadows at all.	Shadow Map 10, Sample Range 4 Larger Sample Range values doesn't help much.
Shadow Map 100, Sample Range 1 Notcice that the shadow's resolution is equal, regardless of the size of the shadow casting object.	Shadow Map 100, Sample Range 4 The Shadow Map is to small for this large scene. The little teapot could use more details in the shadow.
Shadow Map 1000, Sample Range 1 Now there's enough details in the shadows. Even for the small teapot.	Shadow Map 1000, Sample Range 4 Higher Sample Range value will take care of the jaggies.