Lambertian transmitter BSDF

Description

../../../_images/lambertiantransmitter.jpg

Example of lambertian transmitter BSDF

BSDF This BSDF type diffuses light in transmission. No light is reflected back from the incident ray, it is fully transmitted, and scattered uniformly. This is similar to the lambertian BSDF, except that it is transmitting instead of reflecting.

This BSDF used alone is unrealistic and very unlikely to be found in nature. However, a blend of this BSDF type with another diffuse BSDF, such as lambertian, oren-nayar or phong will help modelling thin translucent surfaces, such as sheets of paper, leaves, cloth, and many other, which diffusely transmit a fraction of incident light.

Children Nodes

Filter shader diffuse

The spectral diffuse transmittance of the surface

Ocean XML 4.0 example

<bsdf name="bsdf" type="lambertian_transmitter">
   <filtershader name="diffuse" type="uniform">
      <spectrum name="spectrum" type="tabulated" start="388E-9" end="780E-9" num="10">
         0.343 0.343 0.445 0.551 0.624 0.665 0.687 0.708 0.723 0.715
      </spectrum>
   </filtershader>
</bsdf>