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https://github.com/patryk27/strolle
Experimental real-time renderer with support for dynamic global illumination
https://github.com/patryk27/strolle
bevy bevy-engine bevy-plugin global-illumination gpu rendering restir restir-gi rust shaders svgf
Last synced: about 1 month ago
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Experimental real-time renderer with support for dynamic global illumination
- Host: GitHub
- URL: https://github.com/patryk27/strolle
- Owner: Patryk27
- License: mit
- Created: 2022-12-03T10:46:03.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2024-02-26T18:23:57.000Z (9 months ago)
- Last Synced: 2024-10-09T20:04:42.429Z (about 1 month ago)
- Topics: bevy, bevy-engine, bevy-plugin, global-illumination, gpu, rendering, restir, restir-gi, rust, shaders, svgf
- Language: Rust
- Homepage:
- Size: 15.1 MB
- Stars: 396
- Watchers: 8
- Forks: 14
- Open Issues: 15
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Strolle
Strolle (from _strålspårning_) is a real-time renderer with support for dynamic
global illumination:
Strolle's goal is to experiment with modern real-time lighting techniques such
as ReSTIR and see how far we can go on consumer hardware, especially the one
_without_ dedicated ray-tracing cores.
Strolle comes integrated with [Bevy](https://bevyengine.org/), but can be also
used on its own (through `wgpu`).
Status: Experimental, no official release yet (see the demo below, though!).
Platforms: Windows, Mac, Linux & WebGPU.
* [Gallery](#gallery)
* [Examples](#examples)
* [Usage](#usage)
* [Roadmap](#roadmap)
## Gallery
(note that currently there's no denoiser for specular lighting)
## Examples
### Dungeon
``` shell
$ cargo run --release --example demo
```
Shows a dungeon tech demo, as in the example above.
Use WASD to move, mouse to navigate the camera, and:
- H/L: Adjust sun's azimuth,
- J/K: Adjust sun's altitude,
- F: Toggle flashlight on/off,
- M: Toggle diffuse/specular materials,
- T: Remove textures,
- 1: Show the final, composed image¹ (default),
- 2: Show direct-diffuse lighting only¹,
- 3: Show direct-specular lighting only¹,
- 4: Show indirect-diffuse lighting only¹,
- 5: Show indirect-specular lighting only¹,
- 8: Show BVH heatmap,
- 9: Switch camera to a path-traced reference mode (slow),
- 0: Switch camera to Bevy's renderer,
- ;: Toggle camera's controls on/off - useful for taking screenshots.
¹ press the same key again to toggle denoising on/off
Model thanks to:
https://sketchfab.com/3d-models/low-poly-game-level-82b7a937ae504cfa9f277d9bf6874ad2
### Cornell Box
``` shell
$ cargo run --release --example cornell
```
## Usage
### Bevy
Currently supported Bevy version: 0.12.1.
1. Add Strolle to your dependencies:
``` toml
[dependencies]
bevy_strolle = { git = "https://github.com/patryk27/strolle" }
```
2. Add a patch to work-around [a bug in Naga](https://github.com/gfx-rs/naga/issues/2373):
``` toml
[patch."crates-io"]
naga = { git = "https://github.com/Patryk27/naga", branch = "v0.13.0-strolle" }
```
3. Setup & enjoy!
```rust
App::new()
/* ... */
.add_plugins(StrollePlugin);
commands
.spawn(Camera3dBundle {
camera_render_graph: CameraRenderGraph::new(
bevy_strolle::graph::NAME,
),
camera: Camera {
hdr: true,
..default()
},
..default()
});
```
Note that Strolle completely overrides Bevy's camera graph, so you can't use a
Strolle camera together with Bevy's effects such as bloom or TAA - fragment and
vertex shaders won't work as well.
Also, Strolle is not optimized well towards higher resolutions - on non-high-end
GPUs, it's recommended to stick to ~800x600 and upscale the camera instead (see
the `demo.rs` here).
## Roadmap
https://github.com/Patryk27/strolle/issues?q=is%3Aissue+is%3Aopen+label%3AC-bug%2CC-feature
## Algorithms
Notable algorithms implemented in Strolle include:
- [ReSTIR DI](https://research.nvidia.com/sites/default/files/pubs/2020-07_Spatiotemporal-reservoir-resampling/ReSTIR.pdf)
- [ReSTIR GI](https://d1qx31qr3h6wln.cloudfront.net/publications/ReSTIR%20GI.pdf)
- [SVGF](https://research.nvidia.com/publication/2017-07_spatiotemporal-variance-guided-filtering-real-time-reconstruction-path-traced)
- [A Scalable and Production Ready Sky and Atmosphere Rendering Technique](https://sebh.github.io/publications/egsr2020.pdf)
## License
MIT License
Copyright (c) 2022 Patryk Wychowaniec & Jakub Trąd