particle      illumination
vertex      vertex vol      view      vol vol      vol vol vol



        Creates the empty volume identifier id.


       Creates the volume id with simple properties of type propr(p).
       Creates the volume id with the facet (1,2,3,4,5,6).
       Creates the volume id with 100000 points (0,0,0).
       Creates the volume id with the points (x1,y1,z1,x2,y2,z2,...).
       Creates the volume id with color (r,g,b).
       Creates the volume id with the illumination coefficients (illum,ref,spe,bri,tran).
       Creates the volume id with 2 facets (1,2,3) and (4,5,6,7).
The parameters number must be specify, for example col(2,1) has unspecified effects on the blue component of the color.
To add points:
To add facets:

vol envelope

vol(id0)envelope secx(nx)

Builds volume id0 type envelope with nx x factes sections.
close(c): c = 0 (open), c = 1 (close).
envelope(id1,id2,...): the y sections are those of volumes idi, such a volume is built during its first display. Allows set a continuity between the itmes of an articulated structure.
meta(id2,s2): vertices of current x section of volume id0 are points s2 of volume id2.
vertex(num,v1,v2,...): the currents points of volume id0 are the points v1,v2,... of volume number num.
spring vol(id)=s,v: defines a spring between a point of volume id and the corresponding point of his envelope.
envelope(0)adjust vol(id0)=a,a1,a2,...,an, b1,b2,...,bn: allows correct the mapping of vertices b1,b2,...,bn on vertices a1,a2,...,an of volume id.

vol light

vol light(id)

       Returns the numbers of the volumes having a shadow from light id.

vol light(id)=s1,s2,...

       Definies these volumes.

vol particle

vol(id)particle poi(p)

       Builds a particles system of points p.
blocks force vertex and speed vertex are automatically generated and set to zero.
alea: reproductible random.
ang(an): opening angle an (.25*PI default).
axis(ax,ay,az): direction (ax,ay,az) (0,-1,0 default).
center(xc,yc,zc): center (xc,yc,zc) (0,0,0 default).
col(r,g,b): color;
force(f1,f2,v1,v2): set randomly the origin forces of point P between f1 and f2, with viscosity between v1 and v2 and direction CP.
illum(col,ref,spe,bri,tran): illumination.
mass(m): mass.
normal(nor1,nor2,v1,v2): force direction is a normal to CP insteda of CP, random module between nor1 and nor2. and random viscosity between v1 and v2.
particle(np): set np points (xc,yc,zc).
poi(x1,y1,z1,...): set np points (xi,yi,zi).
rand: not reproductible random.
secz(3): 3D (default), secz(2): 2D.
speed(s): set the origin module speeds of vertices to s.
speed(s1,s2): set randomly the origin speeds of vertices between s1 and s2.
tan: set the origin forces of each vertice in the tangent plan to the sphere.
time(t1,t2,0): t1 = birth date, t2 = life time, 0 is required.
Some of these options are stocked in blocs of type stock opt.
To add points:
To modify the forces:
force vertex(num)vol(id)=fx,fy,fz,v
To modify particles masses:
mass vertex(num)vol(id)=m
To modify particles speed:
speed vertex(num)vol(id)=sx,s,sz
To modify particles time:
time vertex(num)vol(id)=t1,t2,0
1) in this case it will be necessary to generate force vertex vol(id) and generate speed vertex vol(id)
2) it is necessary to yes particle and yes dynamic to activate the particles.
3) The points of the volume id define the particles positions.


light vol(id)=idl illuminates the particles volume by light idl (default is an uniform illumination).
In the case vol vol(id)=id2, meta normal vol(i2)=id is needed in order to compute the illuminantion of volume id2 according to its position on vertices of volume id.

2) alea speed vol et alea speed vertex vol allow to manage the rebounds absorption.

3) field allows to create force fields.
4) coe speed vol and coe speed vertex vol allow to manage the rebounds absorption.
5) collision vol allows to manage collisions with obstacles.
6) collision particle vol to manage collisions between particles.
7) force vol et force vertex vol used to apply forces to particles.
8) mass vol et mass vertex vol used to assign masses to the particles.
9) motif vol(>a> and motif vertex vol to replace particles by objects.
10) time vol and time vertex vol to manage births and lifetimes of particles (eternal default).
11) speed vol and speed vertex vol can give initial velocities to the particles.
12) force speed vol treats the running resistance.
13) center vol helps maintain a center particle generation.

vol vertex

vol vertex(s)vol(id)

       Returns the vol vertex property of the vertex s of volume id.

vol vertex(s)vol(id)=v

       Changes this property.
Vertex num of volume id is attracted by vertex num of volume v,
Note: by a spring coefficients spring vertex(num)vol(v).

vol view

vol view(id)

        Returns the identifier of the volume associated to the view id.

vol view(id1)=id2

        Changes this identifier.
Note: This command displays, in the same scene, different volumes depending on specific points of view (see demo1_view.func).

vol vol

vol vol(id)

       Returns the vol vol property of the volume id.

vol vol(id)=v

       Changes this property.
With yes vol the volume v will be displayed in every vertices of the volume id.
Not to display the volume v do validate vol(v)=0

vol vol vol


Builds revolution volume id1 joigning secy(ny2+1)vol(id2) to secy(ny3+1) vol(id3). id3 (provided they are of the same type) with simple properties.
ang(a2,a3): rotates ang a2 secy(ny2+1)vol(id2) and ang a3 secy(ny3+1)vol(id3).
ext(e,c,f): extension.
inv: joigning secy(1)vol(id2) to secy(1) vol(id3).
secy(n): secy vol(id1) (2 by default).

See also:

acc vol
adhere vol
CG vol
NF vol
NP vol
add vol
adjust vol
alea vol
alex vol
aley vol
alez vol
anc vol
ang vol
animer vol
attach vol
axis vol
ball vol
behind vol
box vol
clip vol
close vol
col vol
compile vol
concat vol
deformation vol
deformation pers
displ vol
dila vol
dilx vol
dily vol
dilz vol
disk vol
dup vol
edit vol
ext vol
fac vol
field vol
follow vol
force vol
frac vol
generate vol
heritage vol
hom vol
illum vol
image vol
inside vol
interpol vol
intersection vol
lattice vol
lead vol
line vol
light vol
local vol
mass vol
message vol
motif vol
number vol
particle vol
pull vol
put vol
radius vol
read vol
rem vol
rota vol
rotx vol
roty vol
rotz vol
secx vol
secy vol
simple vol
speed vol
split vol
syma vol
symx vol
symy vol
symz vol
texture vol
traj vol
tran vol
transp vol
triangulate vol
validate vol
vertex vol
write vol
zbuf vol

and more generaly:

p1 p2 ... vol

p1 p2 ... are any properties.

See also