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Currently, sources are specified as combinations of position and spectrum generators. There may be multiple spectrum generators associated with each position generator. There is only one position generator per source.
You must write a lua
function entitled source
which
creates the sources you wish to model. Each source is begun with the
begin_source
function, and ended with the end_source
function. Both take a single parameter, namely a string specifying the
name of the source, which is used to identify it in any output:
function source() begin_source( 'M87 - knot1' ) mono( 'knot1 spectrum', 2.5, 1 ) -- the spectrum generator point( 'knot1 point' ) -- the position generator end_source( 'M87 - knot1' ) end
Note that the identifying string given to end_source
must be
identical to that passed to begin_source
.
The file containing your source script is what is given to the
raygen
source
parameter. The source override code
provided by the source_override
parameter is placed in a function
called override
. You should place a call to override
early in your script (it can be done outside of the source
function).
The provided position generators are described in the following sections.
• Position Generators: | ||
• Spectrum Generators: |