Tiny Renderer

A toy software renderer for learning Computer Graphics written in Rust.

Features

Homogeneous clipping
Back-face culling
Perspective correct interpolation
Depth testing
Phong shading
Orbital camera controls
Physicallly-Based-Rendering(Cook-Torrance)

Usage

Tiny renderer is available in Windows, Linux and MacOSX now.

Launch

You can run with cargo.

cargo run --release [shader] [path]
cargo run --release pbr [path] [spp]

shader is the name of fragment shader.

Available shaders:

z: Depth shader
color: Color shader.
texture: Texture mapping shader.
phong-color: Color shader with Phong shading.
phong-texture: Texture shader with Phong shading.

path is the the path without extension to .gltf/.obj/.mtl and texture image(.jpg/.png) file. It means they should be in same directory. PBR will try to load .gltf and others will try to load .obj.

For example, you can run just like:

cargo run --release color static/cube

It will run the renderer with static/cube.obj.

There are some simple models in static directory.

cube
cone
multi_models
earth
earth_good
spot
cornell-box

Don't forget --release flag because of its poor performance.

Controls

Rotate camera: W/S/A/D
Rotate light: I/K/J/L
Zoom camera: ↑/↓

Screenshots

screenshot	command
	`cargo run --release texture static/earth`
	`cargo run --release z static/cube`
	`cargo run --release phong-texture static/spot`
	`cargo run --release pbr static/cornell-box 512`
	`cargo run --release pbr static/silver-mirror 512`
	`cargo run --release pbr static/bunny 512`

License

MIT