Emitter

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emitter-2014.png

An emitter defines the light emission properties of a surface. It is assigned to a material



Generic

Generic emitter with a soft cone distribution

Summary

The generic emitter type is defined by a base emission spectrum, an angular distribution function and a position modulation function. The final radiance is the product of the three functions.

Link

Generic emitter reference


Planar IES

Planar IES emitter. The emitting geometry is a small rectangle in the ceiling

Summary

The planar IES emitter uses IES data and extracts the half-sphere equivalent radiance for a planar source. It is suited for IES sources which have no or little light emitted in the back direction.

Link

Planar IES emitter reference


Spherical IES

Spherical IES emitter. The emitting geometry is a small sphere close to the ceiling

Summary

The spherical IES emitter uses IES data and for any point on a sphere geometry, derives a planar source model, so that the full sphere has the same radiance distribution as the IES data. It is suited for any kind of IES source, and requires to be applied on a sphere geometry.

Link

Spherical IES emitter reference


See also

Node types