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#endif // HAVE_CONFIG_H
\class SoVRMLMovieTexture SoVRMLMovieTexture.h Inventor/VRMLnodes/SoVRMLMovieTexture.h
\brief The SoVRMLMovieTexture class is used the map movies onto geometry.
exposedField SFBool loop FALSE
exposedField SFFloat speed 1.0 # (-inf, inf)
exposedField SFTime startTime 0 # (-inf, inf)
exposedField SFTime stopTime 0 # (-inf, inf)
exposedField MFString url 
field SFBool repeatS TRUE
field SFBool repeatT TRUE
eventOut SFTime duration_changed
eventOut SFBool isActive
The MovieTexture node defines a time dependent texture map
(contained in a movie file) and parameters for controlling the movie
and the texture mapping. A MovieTexture node can also be used as the
source of sound data for a Sound node. In this special case, the
MovieTexture node is not used for rendering.
Texture maps are defined in a 2D coordinate system (s, t) that
ranges from 0.0 to 1.0 in both directions. The bottom edge of the
image corresponds to the S-axis of the texture map, and left edge of
the image corresponds to the T-axis of the texture map. The
lower-left pixel of the image corresponds to s=0.0, t=0.0, and the
top-right pixel of the image corresponds to s=1.0, t=1.0. Figure
6.12 depicts the texture map coordinate system of the MovieTexture.
Figure 6.12 -- MovieTexture node coordinate system
The url field that defines the movie data shall support
MPEG1-Systems (audio and video) or MPEG1-Video (video-only) movie
file formats 2 Details on the url field can be found in 4.5, VRML
and the World Wide Web
MovieTexture nodes can be referenced by an Appearance node's texture
field (as a movie texture) and by a Sound node's source field (as an
audio source only). See 4.6.11, Texture maps
for a general description of texture maps. 4.14, Lighting model
contains details on lighting equations and the interaction between
textures, materials, and geometries.
As soon as the movie is loaded, a duration_changed eventOut is
sent. This indicates the duration of the movie in seconds. This
eventOut value can be read (for instance, by a Script node) to
determine the duration of a movie. A value of "-1" implies the movie
has not yet loaded or the value is unavailable for some reason.
The loop, startTime, and stopTime exposedFields and the isActive
eventOut, and their effects on the MovieTexture node, are discussed
in detail in the 4.6.9, Time-dependent nodes, section
The cycle of a MovieTexture node is the length of time in seconds
for one playing of the movie at the specified speed. The speed
exposedField indicates how fast the movie shall be played. A speed
of 2 indicates the movie plays twice as fast. The duration_changed
output is not affected by the speed exposedField. set_speed events
are ignored while the movie is playing. A negative speed implies
that the movie will play backwards.
If a MovieTexture node is inactive when the movie is first loaded,
frame 0 of the movie texture is displayed if speed is non-negative
or the last frame of the movie texture is shown if speed is negative
(see 4.11.3, Discrete and continuous changes). A MovieTexture node
shall display frame 0 if speed = 0. For positive values of speed, an
active MovieTexture node displays the frame at movie time t as
follows (i.e., in the movie's local time system with frame 0 at time
0 with speed = 1):
t = (now - startTime) modulo (duration/speed)
If speed is negative, the MovieTexture node displays the frame at movie
t = duration - ((now - startTime) modulo |duration/speed|)
When a MovieTexture node becomes inactive, the frame corresponding
to the time at which the MovieTexture became inactive will remain as
\var SoSFBool SoVRMLMovieTexture::loop
Specifies whether movie should be looped or not. Default value is FALSE.
\var SoSFFloat SoVRMLMovieTexture::speed
Specifies the relative speed. Default value is 1.0.
\var SoSFTime SoVRMLMovieTexture::startTime
Specifies the start time.
\var SoSFTime SoVRMLMovieTexture::stopTime
Specifies the stop time.
\var SoMFString SoVRMLMovieTexture::url
The filename URL.
\var SoSFTime SoVRMLMovieTexture::duration_changed
An eventOut that is signaled after the node is loaded or inserted in the scene graph.
\var SoSFBool SoVRMLMovieTexture::isActive
An eventOut that is signaled when the movie begins/finishes playing.
// Doc in parent
// Doc in parent
SoVRMLMovieTexture::GLRender(SoGLRenderAction * COIN_UNUSED_ARG(action))
#endif // HAVE_VRML97