Mesh Emitters

Mesh EmittersThe ability for a surface to emit illumination usually described by a Black Body or Texture emission type. allow an object to be used as a light source. These can be used in conjunction with both the Texture and the Daylight Environment lighting systems. In the current release of Octane For After Effects, Mesh Emitters must be created and edited via the Nodegraph Editor in Octane Interface.

In order to use a mesh as a light source, it requires a DiffuseAmount of diffusion, or the reflection of light photons at different angles from an uneven or granular surface. Used for dull, non-reflecting materials or mesh emitters. material type (Figure 1). An Emission node can then be connected to the emission pin of the diffuse material (Figure2).

Figure 1: Right-clicking in the Nodegraph Editor to add a Diffuse materialUsed for dull, non-reflecting materials or mesh emitters..


Figure 2: Connecting an Emission node to the Emission pin of a Diffuse material.


There are two types of Emission Nodes:


Blackbody Emission
The Blackbody Emission type uses Color Temperature (in Kelvin) and Power to control the color and intensity of the light


Texture Emission
This allows any valid texture type to set the light intensity. This can be used to create effects such as TV screens by using an Image Texture as the illumination source.


The Emission node parameters:

Most of the emission parameters are common between Texture EmissionsThe process by which a Black body or Texture is used to emit light from a surface. and Blackbody Emissions. The main difference is whether the color comes from the Blackbody temperature or from the texture settings of the diffuse material.

Blackbody Emissions have the following additional parameters: