Bevy Image Export

A Bevy plugin for rendering image sequences.

Usage

```rust use bevy::{prelude::*, winit::WinitSettings}; use bevyimageexport::{ImageExportCamera, ImageExportPlugin};

fn main() { let exportplugin = ImageExportPlugin::default(); let exportthreads = export_plugin.threads.clone();

App::new()
    .insert_resource(WinitSettings {
        return_from_run: true,
        ..default()
    })
    .add_plugins(DefaultPlugins.set(WindowPlugin {
        primary_window: Some(Window {
            resolution: (1024., 1024.).into(),
            ..default()
        }),
        ..default()
    }))
    .add_plugin(export_plugin)
    // ...
    .run();

// This line is optional but recommended.
// It blocks the main thread until all image files have been saved successfully.
export_threads.finish();

}

fn setup( mut commands: Commands, mut meshes: ResMut>, mut materials: ResMut>, ) { commands .spawn(Camera3dBundle { transform: Transform::fromxyz(-2.0, 2.5, 5.0).lookingat(Vec3::ZERO, Vec3::Y), ..default() })

    // Add a child camera to your main camera and insert the ImageExportCamera component.
    .with_children(|parent| {
        parent
            .spawn(Camera3dBundle::default())
            .insert(ImageExportCamera {
                // Frames will be saved to "./out/[#####].png".
                output_dir: "out",
                extension: "png",
            });
    });

// ...

} ```

Video file export

With FFmpeg installed, you can run the following command to convert your exported image sequence to an MP4 video file:

bash ffmpeg -r 60 -i out/%05d.png -vcodec libx264 -crf 25 -pix_fmt yuv420p out.mp4