Base interface for classes that implement a visibility check for terrain mesh vertices.
interface
|
IVisibleCheck
|
extends
|
IVertexArraysDependent
|
||
base of
|
VisibleCheck
|
Adds
the
given
visibility
check
to
this
one,
so
that
a
mesh
vertex
will
be
visible
if
at
least
one
of
both
returns
true
.
[Pure]
|
||||
method
|
Add
(IVisibleCheck check)
|
|||
type
|
IVisibleCheck
|
|||
params
|
check
|
[not-null]
|
The visibility check to add. | |
returns
|
|
The resulting visibility check. |
See also:
RemoveDoes this visible check contain the given one?
[Pure]
|
||||
method
|
Contains
(IVisibleCheck check)
|
|||
type
|
bool
|
|||
params
|
check
|
[not-null]
|
The visible check. | |
returns
|
true
if
check
is
contained,
i.e.
calling
Add
will
return
this .
false
if
check
is
not
contained,
i.e.
calling
Remove
will
return
this .
|
Computes whether the given vertex shall be visible in the terrain mesh or not.
[Pure]
|
||||
method
|
IsVertexVisible
(int32 v,
int32 g,
int32 a,
float64 thresholdSqr)
|
|||
type
|
bool
|
|||
params
|
v
|
The vertex to check for visibility. | ||
g
|
Grand-parent of v. | |||
a
|
Ancestor vertex of v. | |||
thresholdSqr
|
The tolerated squared terrain-space vertex error. | |||
returns
|
true
if
the
squared
terrain-space
vertex
error
value
is
greater
than
thresholdSqr
(i.e.
the
vertex
will
be
visible
in
the
terrain
mesh),
false
if
not
(i.e.
the
vertex
will
be
invisible).
|
Remarks:
This method will be called repeatedly only by the refinement thread of the MeshBuffer. Thus, as long as no other code is called it, thread-safe code is not required here.
Removes
the
given
vertex
visibility
check
from
this
one,
so
that
a
mesh
vertex
will
only
be
visible
if
this
one
returns
true
.
[Pure]
|
||||
method
|
Remove
(IVisibleCheck check)
|
|||
type
|
IVisibleCheck
|
|||
params
|
check
|
[not-null]
|
The visibility check to remove. | |
returns
|
|
The resulting visibility check. |
See also:
AddSets the vertex data containers from which this vertex converter shall read vertex data.
method
|
SetVertexArrays
(VertexArrays vertexArrays)
|
||
params
|
vertexArrays
|
[not-null]
|
The vertex data collection. |
inherited
|
IVertexArraysDependent.SetVertexArrays
|