A basic raytracer written to learn the language go. It renders the scene with a video-game style "isometric" projection (technically a dimetric projection with a 2:1 pixel ratio). That is, rays from the camera are emitted in parallel, and the camera is oriented so that a line parallel to the x or z axes will be rendered with a gradient of ±0.5 pixels/pixel (up one pixel for every two pixels it goes left or right).

• Render basic shapes such as planes, cubes and spheres.
• Add simple materials to shapes which specify reflectivity and colour.

• Finish composite shapes - this means that a complex shape can be built using binary operations on simpler shapes (known as constructive solid geometry).
• Extend materials to allow for textures and refraction.
• Implement a configuration file format to describe a scene.
• Implement proper parallel rendering.