| 4 |
|
} |
| 5 |
|
and(a,b) : if(a,b,a); |
| 6 |
|
{ level selector } |
| 7 |
< |
cond = if(LV+.5, and($10-LV-.5,LV+.5-$10), 1); |
| 7 |
> |
lvl = $10; |
| 8 |
> |
wt = $11; |
| 9 |
> |
cond = and( wt-MW, if(LV+.5, and(lvl-LV+.5,LV+.5-lvl), 6.5-lvl) ); |
| 10 |
|
px = $1; py = $2; pz = $3; |
| 11 |
|
r0 = SF*$12; r1 = SF*$13; |
| 12 |
|
nx = $4; ny = $5; nz = $6; |
| 14 |
|
vx = ny*uz - nz*uy; |
| 15 |
|
vy = nz*ux - nx*uz; |
| 16 |
|
vz = nx*uy - ny*ux; |
| 17 |
< |
avr = $14; avg = $15; avb = $16; |
| 17 |
> |
avr = .5/PI*$14; avg = .5/PI*$15; avb = .5/PI*$16; |
| 18 |
|
{ magnified position gradient } |
| 19 |
|
pgx = ($17*ux + $18*vx)/SF; |
| 20 |
|
pgy = ($17*uy + $18*vy)/SF; |
| 25 |
|
dgy = $19*uy + $20*vy; |
| 26 |
|
dgz = $19*uz + $20*vz; |
| 27 |
|
val = avr + avg + avb; { ambient position color } |
| 28 |
< |
agr = select($10+1, val, 0, 0, val, 0, val, val); |
| 29 |
< |
agg = select($10+1, 0, val, 0, val, val, 0, val/2); |
| 30 |
< |
agb = select($10+1, 0, 0, val, 0, val, val, val/2); |
| 28 |
> |
agr = select(lvl+1, val, 0, 0, val, 0, val, val); |
| 29 |
> |
agg = select(lvl+1, 0, val, 0, val, val, 0, val/2); |
| 30 |
> |
agb = select(lvl+1, 0, 0, val, 0, val, val, val/2); |
| 31 |
|
psiz = r0/10; |
| 32 |
|
{ base polygon vertices } |
| 33 |
|
px1 = px + r0*ux + r1*vx + .0001*nx; |
