Example output

Example usage

$ cargo build --release   Compiling raytracer v0.1.0 (/Users/dps/proj/rust-raytracer/raytracer)    Finished release [optimized] target(s) in 2.57s$ ./target/release/raytracer data/test_scene.json out.pngRendering out.pngFrame time: 2840ms$ ./target/release/raytracer data/cover_scene.json cover.pngRendering cover.pngFrame time: 27146ms

Texture mapping

Lighting

Parallel rendering - will use all CPU cores for best performance

Original

🚀 ./target/release/raytracer anim/frame   Compiling raytracer v0.1.0 (/Users/dps/proj/rust-raytracer/raytracer)    Finished release [optimized] target(s) in 2.21sRendering anim/frame_000.png............................................................Frame time: 21s

Using rayon

Rendering anim/frame_000.pngFrame time: 2573ms

Render a sky texture

Read scene data from JSON file

Example

{  "width": 800,  "height": 600,  "samples_per_pixel": 128,  "max_depth": 50,  "sky": {    "texture":"data/beach.jpg"  },  "camera": {    "look_from": { "x": -2.0, "y": 0.5, "z": 1.0 },    "look_at": { "x": 0.0, "y": 0.0, "z": -1.0 },    "vup": { "x": 0.0, "y": 1.0, "z": 0.0 },    "vfov": 50.0,    "aspect": 1.3333333333333333  },  "objects": [    {      "center": { "x": 0.0, "y": 0.0, "z": -1.0 },      "radius": 0.5,      "material": {        "Texture": {          "albedo": [            1.0,            1.0,            1.0          ],          "pixels": "data/earth.jpg",          "width": 2048,          "height": 1024,          "h_offset": 0.75        }      }    }  ]}

Make animation

🚀 ffmpeg -f image2 -framerate 15 -i anim/frame_%03d.png -loop -0 anim.gif

Credits

Extreme lighting example

Progressive max_depth animation