385
The optional
levelOfDetail
parameter allows you to specify the level of detail of the
information returned. The
levelOfDetail
parameter can have the following values:
#simple
returns a list containing references to the models found under the point. This is the
default setting.
#detailed
returns a list of property lists, each representing an intersected model. Each property
list will have the following properties:
•
#model
is a reference to the intersected model object.
•
#distance
is the distance from the world position specified by
locationVector
to the point
of intersection with the model.
•
#isectPosition
is a vector representing the world space position of the point of intersection.
•
#isectNormal
is the world space normal vector to the mesh at the point of intersection.
•
#meshID
is the meshID of the intersected mesh which can be used to index into the mesh list
of the
meshDeform
modifier.
•
#faceID
is the face ID of the intersected face which can be used to index into the face list of
the
meshDeform
modifier.
•
#vertices
is a 3-element list of vectors that represent the world space positions of the vertices
of the intersected face.
•
#uvCoord
is a property list with properties
#u
and
#v
that represent the u and v barycentric
coordinates of the face.
Within the returned list, the first model listed is the one closest to the position specified by
locationVector
and the last model listed is the furthest from that position.
Only one intersection (the closest intersection) is returned per model.
The command returns an empty list if there are no models found under the specified ray.
Example
This statement displays the detailed information for a model intersected by a ray drawn from the
position vector (0, 0, 300) and pointing down the -z axis:
put member("3d").modelsUnderRay(vector(0, 0, 300), vector(0, 0, -\
1), 3, #detailed)
-- [[#model: model("mSphere"), #distance: 275.0000, \
#isectPosition: vector( 0.0000, 0.0000, 25.0000 ), #isectNormal: \
vector( -0.0775, 0.0161, 0.9969 ), #meshID: 1, #faceID: 229, \
#vertices: [vector( 0.0000, 0.0000, 25.0000 ), vector( -3.6851, \
1.3097, 24.6922 ), vector( -3.9017, 0.2669, 24.6922 )], \
#uvCoord: [#u: 0.0000, #v: 0.0000]]]
See also
modelsUnderLoc
,
modelUnderLoc
Содержание DIRECTOR MX-LINGO DICTIONARY
Страница 1: ...Lingo Dictionary Macromedia Director MX...
Страница 756: ...Index 756...