Converting Shaders to run in xLights

[@Clutchplate2006]

It would be really useful to have access to the length of the effect being rendered (DURATION?). That way shaders could add support for Cycles- or Revolutions-type parameters....

[@Keithwestley]

Another developer recently added this. You access it using the global value XL_DURATION.

[@stuartledingham3366]

is the ppt available for download somewhere?

[@Keithwestley]

I have never published the PowerPoint.