Radiator version 2.2.0
(c) Andrew Willmott <ajw+rad@cs.cmu.edu> 2000

Usage: radiator [options], where options are as follows:

-v                      show current version
[%S]                    input scene file

--- Methods --------------------------------------------------------------------

-mat                    use matrix radiosity
-prog                   use progressive radiosity
-hprog                  use progressive radiosity with substructuring
-hier                   use hierarchical radiosity
-ana                    use 1st-order analytical solver

--- Params ---------------------------------------------------------------------

-sub %F                 set patch subdivision density
-esub %F                set element subdivision density
-alpha %F               set alpha
-terr %F                set termination error
-ferr %F                set transport error
-ferrRel %F             set relative transport error
-aerr %F                set min patch size
-derr %F                set singularity threshold

--- Visibility------------------------------------------------------------------

-verr %F                wavelet visibility error
-quadLevel %d           quadrature level
-visInQuad              do visibility testing in quadrature
-vis_none               no visibility testing
-vis_1                  single ray visibility
-vis_16                 use 16 rays from source -> centre of dest
-vis_44                 use 16 rays distributed over both patches
-visReuseArea %F        area below which to reuse visibility samples
-favourReceiver %F      amount by which to favour subdividing receiver

--- Meshing --------------------------------------------------------------------

-mesh_share             ensure all coincident mesh vertices are shared
-mesh_noAnchor          don't enforce elimination of t-vertices
-mesh_noGrading         don't enforce a graded mesh
-mesh_noConnect         don't calculate mesh connectivity
-mesh_noGrid            don't use gridding, only hierarchical refinement
-mesh_nonLin            mesh more heavily at edges
-mesh_random            vary 'sub' parameter randomly

--- Complexity -----------------------------------------------------------------

-meshComp %F            complexity for creating radiosity mesh
-rtComp %F              complexity for raytracing (if different.)

--- Misc -----------------------------------------------------------------------

-conjGrad               use conjugate gradient solver (matrix radiosity)
-ambient                add ambient term
-maxShots %d            max shooting steps to perform
-noDirect               no direct illumination
-no_refWait             don't wait for all links to be refined before stopping
-normalise              rescale scene first

--- Cluster/FCR ----------------------------------------------------------------

-doFinal                do final 'best' pass
-finLevels %d               extra levels to subdivide
-finVis                     recalc visibility
-finVRI                     use vector irradiance interpolation
-noCluster              don't use clustering
-fcr                    use FCR
-scheduled              use scheduled solver [default]
-interleaved            use interleaved solver
-twoStage               use two-stage solver
-schedIters %d          max scheduled iterations to perform

--- Avars ----------------------------------------------------------------------

-set ...                set avar, e.g. -set light 0.5 height 0.2

--- Output ---------------------------------------------------------------------

-slice %F               time slice: output stats at this interval
-limit %F               time limit: halt after this much time
-dumpObj                output final mesh as .obj [default]
-dumpSL                 output final mesh as .sl
-updateScene            update final mesh file at each slice
-dumpScenes             output separate numbered mesh file for each slice
-dumpMatrix             output form-factor matrix
-dumpHier               output solution hierarchy
-o %S                   output file name

--- Signals --------------------------------------------------------------------

killall -HUP  radiator               stops simulation
killall -CONT radiator               print simulation status

--- Examples -------------------------------------------------------------------

radiator scene.sl -hprog -error 0.001 -ferr 0.01
radiator scene.mgf -hier -ferrRel 0.01 -schedIter 5 -set avar1 0.2 -o wombat