DP TE PARTICLESNOW

Builtin definitions:

void(vector mincorner, vector maxcorner, vector vel, float howmany, float color) te_particlesnow = #410;

Temp entity definitions:

float TE_PARTICLERAIN = 56;

Protocol:

vector mins (minimum corner of the cube)
vector maxs (maximum corner of the cube)
vector velocity (velocity of particles)
short count (number of particles)
byte color (8bit palette color)

Creates a shower of snow, the snow will appear either at the top (if falling down) or bottom (if falling up) of the cube, low velocities are advisable for convincing snow.