Adobe Acrobat SDK
Multimedia Features (Chapter 9 in PDF Reference)
Adobe® Supplement to the ISO 32000
9.5.3 3D Views (Node Dictionaries) 58
Add the following commentary following the paragraph that begins with “The
M
entry specifies…” on page 830
of the PDF Reference.
The
Instance
and
Data
entries provide a reference to an instance array dictionary within the
Instances
array. The content of
Data
is passed to and from the Flash run time in a rich media context.
The
RM
provides the facility of specifying a change in render mode for each node. In PDF 1.7, render mode
could be specified globally or per view. See Section 9.5.3 “3D Views” of the
PDF Reference
.
The
RM
entry to the 3D node dictionary is applicable both for the 3D node structure within a rich media
context (see Section
9.6.1 RichMedia Annotations
on
page 76
) and within the existing 3D annotations
structure. (See Section 9.5.1 “3D Annotations” of the
PDF Reference
for further information.] The
Instances
array and additional
Data
entries are applicable only to 3D nodes within a rich media context
TABLE 9.47 Entries in a 3D node dictionary
KEY
TYPE
VALUE
N
text string
(
Required
) The name of the node being described by the node
dictionary. Interpretation of this entry depends upon the 3D format
specified in the
Subtype
entry in Table 9.35, as described below:
●
U3D
. If the
Subtype
of the corresponding 3D Stream is
U3D
, this
entry corresponds to the field
Node block
name, specified in the
Universal 3D File Format
(See
Bibliography
.)
●
PRC
. (
ExtensionLevel 1
) If the
Subtype
of the corresponding 3D
Stream is
PRC
, this entry is constructed from fields stored in the PRC
stream. For information on deriving names from PRC fields, see the
documentation module “Naming PRC entities for outside PDF
referencing” in the
PRC Format
(see
Bibliography
).
Note:
When comparing this entry to node names for a particular
convention, such as the Universal 3D File Format, conforming
readers translate between the PDF text encoding used by PDF
and the character encoding specified in the 3D stream.
Instance
dictionary
(
Required if
Data
is present; ExtensionLevel 3
) An indirect object reference
to a RichMediaInstance dictionary (see
“RichMediaInstance Dictionary”
on page 88
) that is also referenced by an entry in the
Instances
array.
Data
text string or
stream
(
Optional; ExtensionLevel 3
) A text string or stream that contains state
data to be passed to the instance when the view is triggered.
See the extended description of the
Data
key in
“View Params
Dictionary” on page 93
.
RM
dictionary
(
Optional; ExtensionLevel 3
) A render mode dictionary that specifies the
render mode and related properties for this node. If omitted, the render
mode specified in the 3D view is used, and if that is not present, the
render mode of the 3D artwork is used.
The render mode dictionary is identical to that used by the 3D view
dictionary. See the Section 9.5.3, “3D Views (3D Render Mode
Dictionaries)” in
PDF Reference
.
