a signed distance field baker for Unity

• Generates signed distance fields as Texture3D in RHalf format for use with ray marching or the Visual Effect Graph.
• Written distances are between -1 and +1, normalized to the bounding box magnitude.
• Takes advantage of Jobs and Burst + Unity Mathematics, comment out the #define in SDFVolume.cs if Burst & Mathematics should not be used.
• Tested in Unity 2018.3

• Updated To include varity of visualisations of the raymarching ( distance, steps, heatmap ) to aid in learning.
• Some code change to improve performance and address some flaws in RayMarchExample Shader.
• Mainly being used as a testbed for learning more about rayMarching through SDF.
• Next step is a code refctor of rayMarch shaders to unify, simplify and improve overal performance.

MIT