| 7 |
|
lvl = $10; |
| 8 |
|
wt = $11; |
| 9 |
|
r0 = SF*$12; r1 = SF*$13; |
| 10 |
+ |
eps = r0*.015; |
| 11 |
|
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 |
+ |
px = $1 + nx*eps; |
| 18 |
+ |
py = $2 + ny*eps; |
| 19 |
+ |
pz = $3 + nz*eps; |
| 20 |
|
avr = .5/PI*$14; avg = .5/PI*$15; avb = .5/PI*$16; |
| 21 |
|
{ magnified position gradient } |
| 22 |
|
pgx = ($17*ux + $18*vx)/SF; |
| 28 |
|
dgx = $19*ux + $20*vx; |
| 29 |
|
dgy = $19*uy + $20*vy; |
| 30 |
|
dgz = $19*uz + $20*vz; |
| 31 |
+ |
dg = sqrt(dgx*dgx + dgy*dgy + dgz*dgz); |
| 32 |
|
val = avr + avg + avb; { ambient position color } |
| 33 |
|
agr = select(lvl+1, val, 0, 0, val, 0, val, val); |
| 34 |
|
agg = select(lvl+1, 0, val, 0, val, val, 0, val/2); |
| 35 |
|
agb = select(lvl+1, 0, 0, val, 0, val, val, val/2); |
| 36 |
|
psiz = r0/10; |
| 37 |
< |
dcond = and( acond, dgx*dgx+dgy*dgy+dgz*dgz - 1e-8 ); |
| 37 |
> |
dcond = and( acond, dg - .0001 ); |
| 38 |
|
{ base polygon vertices } |
| 39 |
< |
px1 = px + r0*ux + r1*vx + .0001*nx; |
| 40 |
< |
py1 = py + r0*uy + r1*vy + .0001*ny; |
| 41 |
< |
pz1 = pz + r0*uz + r1*vz + .0001*nz; |
| 42 |
< |
px2 = px - r0*ux + r1*vx + .0001*nx; |
| 43 |
< |
py2 = py - r0*uy + r1*vy + .0001*ny; |
| 44 |
< |
pz2 = pz - r0*uz + r1*vz + .0001*nz; |
| 45 |
< |
px3 = px - r0*ux - r1*vx + .0001*nx; |
| 46 |
< |
py3 = py - r0*uy - r1*vy + .0001*ny; |
| 47 |
< |
pz3 = pz - r0*uz - r1*vz + .0001*nz; |
| 48 |
< |
px4 = px + r0*ux - r1*vx + .0001*nx; |
| 49 |
< |
py4 = py + r0*uy - r1*vy + .0001*ny; |
| 50 |
< |
pz4 = pz + r0*uz - r1*vz + .0001*nz; |
| 39 |
> |
px1 = px + r0*ux + r1*vx; |
| 40 |
> |
py1 = py + r0*uy + r1*vy; |
| 41 |
> |
pz1 = pz + r0*uz + r1*vz; |
| 42 |
> |
px2 = px - r0*ux + r1*vx; |
| 43 |
> |
py2 = py - r0*uy + r1*vy; |
| 44 |
> |
pz2 = pz - r0*uz + r1*vz; |
| 45 |
> |
px3 = px - r0*ux - r1*vx; |
| 46 |
> |
py3 = py - r0*uy - r1*vy; |
| 47 |
> |
pz3 = pz - r0*uz - r1*vz; |
| 48 |
> |
px4 = px + r0*ux - r1*vx; |
| 49 |
> |
py4 = py + r0*uy - r1*vy; |
| 50 |
> |
pz4 = pz + r0*uz - r1*vz; |
| 51 |
|
alen = psiz*3; { arrow length & coordinates } |
| 52 |
|
cx0 = px + psiz*psiz/alen*pgx/pg; |
| 53 |
|
cy0 = py + psiz*psiz/alen*pgy/pg; |
