vfx toolset

Since next

6 tools, about 835 tokens when enabled.

Enabled with the tools.enable tool, or argus-agent --toolsets vfx. Calling any of its tools also turns it on.

Tool	Tokens	Description
`vfx.describe`	90	Every setting of a *.vfx.json: unit, range, default and what it does to the look.
`vfx.explain`	157	Plain reasons from the measurements, each with a fix: nothing alive and why, a short pool, no lift, too faint, under a pixel.
`vfx.patch`	197	RFC 6902 ops on a project *.vfx.json, all or nothing; emitters by name (/emitters/@smoke/init/life).
`vfx.read`	69	An effect file as written, or a preset's source to copy from; a preset is read-only.
`vfx.report`	149	What an effect does, measured with no GPU: live against capacity, dropped spawns, rise and spread, pixel width at distances, lints.
`vfx.sheet`	173	Draws an effect on a fixed stage at set moments and distances into one labelled PNG, with an optional param sweep.