Emitting procedural geometry

 

Emitting from non-triangle meshed bodies

The way Maxwell produces light involves an emitting material applied to an actual triangle mesh, making the surface itself emitting light regarding its geometric area. 

It is also possible to cast light from procedural geometry, meaning mathematical objects not composed of triangles which have a surface generated at render time.  Examples of procedural geometry are hair, fur, grass or particles.

So, from now on, emitting from grass blades, hair/fur fibers or from a particle cloud is possible by simply applying an emitter material to these entities. 

 

Above, an emitter material applied to a procedural fur object 

 

Light emitted from procedural geometry (non- triangle meshed). In this case from the rat's fur.

 

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