87 lines
2.4 KiB
Markdown
87 lines
2.4 KiB
Markdown
# bevy_framebuffer_extract
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[](https://exvacuum.github.io/bevy_framebuffer_extract)
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A plugin for the [Bevy](https://bevyengine.org) engine which allows for exporting framebuffer data from a camera.
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Currently it only supports cameras which render to a render texture.
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## Compatibility
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| Crate Version | Bevy Version |
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|--- |--- |
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| 0.1 | 0.13 |
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## Installation
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### Using git URL in Cargo.toml
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```toml
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[dependencies.bevy_framebuffer_extract]
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git = "https://github.com/exvacuum/bevy_framebuffer_extract.git"
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```
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## Usage
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In `main.rs`:
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```rs
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use bevy::prelude::*;
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use bevy_framebuffer_extract;
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fn main() {
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App::new()
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.add_plugins((
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DefaultPlugins,
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bevy_framebuffer_extract::FramebufferExtractPlugin,
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))
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.run();
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}
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```
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When spawning a camera:
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```rs
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let size = Extent3d {
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width: 640,
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height: 480,
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depth_or_array_layers: 1,
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};
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let mut image = Image {
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texture_descriptor: TextureDescriptor {
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label: None,
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size,
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dimension: TextureDimension::D2,
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format: TextureFormat::R8Unorm,
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mip_level_count: 1,
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sample_count: 1,
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usage: TextureUsages::TEXTURE_BINDING
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| TextureUsages::COPY_SRC
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| TextureUsages::RENDER_ATTACHMENT,
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view_formats: &[],
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},
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..default()
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};
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image.resize(size);
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let image_handle = images.add(image); // ResMut<Assets<Image>>
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commands.spawn((
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Camera3dBundle {
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camera: Camera {
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target: image_handle.clone().into();
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..Default::default()
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},
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..Default::default()
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},
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bevy_framebuffer_extract::ExtractFramebufferBundle {
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source: framebuffer_extract_sources.add(FramebufferExtractSource(image_handle.clone())), // ResMut<Assets<FramebufferExtractSource>>
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destination: FramebufferExtractDestination::default(),
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},
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));
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```
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The FramebufferExtractDestination component will contain the extracted image which can be used or saved for whatever you need.
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