can't find the entityfx command you are talking about...
fx -
0: nothing (default)
1: full-bright
2: use vertex colors instead of brush color
4: flatshaded
8: disable fog
16: disable backface culling
32: force alpha-blending
there is nothing for clamping...
fx -
0: nothing (default)
1: full-bright
2: use vertex colors instead of brush color
4: flatshaded
8: disable fog
16: disable backface culling
32: force alpha-blending
there is nothing for clamping...