InF

Format

InF // integer

Flag for moving the starting point of light rays slightly behind the surface. If the flag is True, then the ray is emitted from $p-ϵ\hat{n}$ where $p$ is some point on the surface, $ϵ$ is an infinitesimal, and $\hat{n}$ is the normal vector of the surface.

Example

#InF
SurfEmit
Shell 1 
1

The rays start slightly behind the surface.