This is a specialized material that adds an emissive component to the geometry. It duplicates the features of Dali Physical.
Emission color
Sets the emission color.
Intensity
Sets the brightness of the emission.
Optimize sampling
If a texture map is used to specify color or intensity, then this option creates an optimizing structure for sampling. If there is a lot of emissive geometry in the scene (optimization is performed out for each triangle separately), then the scene preparation time may be unreasonably long. In this case, it is better not to create this structure.
Spectral intensity curve
Additional adjustment of the intensity along the spectrum using a spline.
Kelvin
Radiation temperature in Kelvin. The correct formula for the black body spectrum is used.
Visible to camera
The option makes the emitting geometry visible to the camera (for primary beams from the camera). For secondary beams, emitting sources are always visible.
Lambertian
The option enables compliance with physics when calculating radiation (depending on the angle to the surface).
Two-sided
Radiation will go in both directions from the emissive surface.
Spectral range
Specifies the interval of the spectrum on which the spectral spline is defined.
