| 6 |
|
{ level selector } |
| 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; |
| 9 |
|
r0 = SF*$12; r1 = SF*$13; |
| 10 |
+ |
acond = and( r0-5e-5, and( wt-MW, if(LV+.5, and(lvl-LV+.5,LV+.5-lvl), 6.5-lvl) ) ); |
| 11 |
+ |
px = $1; py = $2; pz = $3; |
| 12 |
|
nx = $4; ny = $5; nz = $6; |
| 13 |
|
ux = $7; uy = $8; uz = $9; |
| 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; |
| 21 |
|
pgz = ($17*uz + $18*vz)/SF; |
| 22 |
|
pg = sqrt(pgx*pgx + pgy*pgy + pgz*pgz); |
| 23 |
+ |
pcond = and( acond, pg - .0001 ); |
| 24 |
|
{ direction gradient } |
| 25 |
|
dgx = $19*ux + $20*vx; |
| 26 |
|
dgy = $19*uy + $20*vy; |
| 30 |
|
agg = select(lvl+1, 0, val, 0, val, val, 0, val/2); |
| 31 |
|
agb = select(lvl+1, 0, 0, val, 0, val, val, val/2); |
| 32 |
|
psiz = r0/10; |
| 33 |
+ |
dcond = and( acond, dgx*dgx+dgy*dgy+dgz*dgz - 1e-8 ); |
| 34 |
|
{ base polygon vertices } |
| 35 |
|
px1 = px + r0*ux + r1*vx + .0001*nx; |
| 36 |
|
py1 = py + r0*uy + r1*vy + .0001*ny; |
