mesh-sequence-player

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mesh-sequence-player

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A simple mesh sequence player based on open3d.

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# Mesh Sequence Player
A simple mesh sequence player based on [open3d](https://github.com/intel-isl/Open3D).

![person](https://raw.githubusercontent.com/cansik/mesh-sequence-player/main/readme/person_square.gif)

It just loads all the mesh files and plays them back. The tool is intended for preview and visualisation purposes only. The software uses multi-processing to load meshes as fast as possible.

### Installation
To install the necessary packages, use the requirements file:

```
pip install git+https://github.com/cansik/mesh-sequence-player.git@1.10.1
```

### Usage
To display a sequence of mesh files just run the following command:

```
mesh-sequence-player folder_to_meshes
```

#### Rendering
It is also possible to render the individual frames into a mp4 file. Currently, only one mesh view will be rendered. If an `output` path is provided, the `no-loop` option is automatically set to `True` and rendering will run with `1000.0 FPS` to render as fast as possible.

```
mesh-sequence-player folder_to_meshes --output render.mp4
```

#### Lazy Loading
To create renderings of very large sequences it is possible to use the `--lazy` parameter to load the geometries every frame instead of all at once. This is only recommended for rendering and not realtime playback.

#### Safe Loading
By default, multi-processing is used to load the geometries. However, it is also possible to load the geometries safe (`--load-safe`) without a transmission format conversion (multi-threaded).

#### Textures
To load obj material files (with textures), it is now possible to use the `--post-process-mesh` command.

#### Help
Here is the full help file.

```
usage: mesh-sequence-player [-h] [-c CONFIG] [--format FORMAT]
                            [--post-process-mesh] [--fps FPS]
                            [--bitrate BITRATE] [--no-loop]
                            [--size width height] [--background r g b]
                            [--hidden] [--rotate ROTATE] [--output OUTPUT]
                            [--load-safe] [--lazy] [-p] [--debug]
                            input

Play mesh sequences directly in python.

positional arguments:
  input                 Path to the mesh files (directory).

optional arguments:
  -h, --help            show this help message and exit
  -c CONFIG, --config CONFIG
                        Configuration file path.
  --format FORMAT       File format (default *.obj).
  --post-process-mesh   Enable mesh post-processing (texture loading).
  --fps FPS             Framerate for playback.
  --bitrate BITRATE     Bitrate of the rendered mp4.
  --no-loop             Do not loop the sequence.
  --size width height   Size of the window.
  --background r g b    Background color (0-255).
  --hidden              Hide preview window.
  --rotate ROTATE       Horizontal axis rotation.
  --output OUTPUT       Output path to mp4 file. Sets no-loop to True.
  --load-safe           Load meshes the safe way and with texture (but
                        slower).
  --lazy                Load meshes one at a time (render large sequences).
  -p, --pointcloud      Load pointclouds (*.ply) instead of meshes.
  --debug               Show debug information.

Args that start with '--' (eg. --format) can also be set in a config file
(specified via -c). Config file syntax allows: key=value, flag=true,
stuff=[a,b,c] (for details, see syntax at https://goo.gl/R74nmi). If an arg is
specified in more than one place, then commandline values override config file
values which override defaults.
```

mesh-sequence-player

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