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Update docs on the video recordings's resolution

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This fixes the the ffmpeg command to correspond to the default humanoid.xml resolution (2560x1440).
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Jan Margeta
2024-03-06 18:32:15 +01:00
parent b475337e02
commit fe2215384b
1 changed files with 6 additions and 5 deletions
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doc/programming/samples.rst
+6 -5
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@@ -150,16 +150,17 @@ This code sample simulates the passive dynamics of a given model, renders it off
values, and saves them into a raw data file that can then be converted into a movie file with tools such as ffmpeg. The
rendering is simplified compared to :ref:`simulate.cc <saSimulate>` because there is no user interaction, visualization
options or timing; instead we simply render with the default settings as fast as possible. The dimensions and number of
multi-samples for the offscreen buffer are specified in the MuJoCo model, while the simulation duration, frames-per-
second to be rendered (usually much less than the physics simulation rate), and output file name are specified as
command-line arguments. For example, a 5 second animation at 60 frames per second is created with:
multi-samples for the offscreen buffer are specified in the MuJoCo model with the visual/global/{offwidth,offheight}
attributes, while the simulation duration, frames-per-second to be rendered (usually much less than the physics
simulation rate), and output file name are specified as command-line arguments.
.. code-block:: Shell
record humanoid.xml 5 60 rgb.out
The default humanoid.xml model specifies offscreen rendering with 800x800 resolution. With this information in hand, we
can compress the (large) raw date file into a playable movie file:
The default humanoid.xml model specifies offscreen rendering with 2560x1440 resolution. With this information in hand,
we can compress the (large) raw date file into a playable movie file:
.. code-block:: Shell
ffmpeg -f rawvideo -pixel_format rgb24 -video_size 2560x1440