Listed here are the FRED Data Structures:

Visualization Camera data structure

T_CAMERA
 

Background Grid data structure

T_BACKGROUNDGRID
 

Generic FRED entity

T_ENTITY
T_ENTITYARRAY
 

Element data structures

T_EDGEBEVELS
T_LENS
T_MIRROR
T_PRISMCUSTOM
 

Rays

T_RAY
T_RAYCOHERENT
 

Advanced Raytrace

T_ADVANCEDRAYTRACE
T_TARGETEDRAY
 

Polarization properties

T_POLARIZE
T_POLARIZE2
 

Glass model

T_MODELMATERIAL
T_SAMPLEDMATERIAL
 

Coatings

T_GENERALCOATINGITEM
T_JONESMATRIX
 

Scatter model

T_ABGSCATTER
T_BLACKPAINT
T_DIFFUSEPOLYNOMIAL
T_DIFFUSEBINOMIAL
T_HARVEYSHACKSCATTER
T_KCORRELATIONSCATTER
T_LAMBERTIANSCATTER
T_MIESCATTER
T_PHONGSCATTER
T_SCATTER
T_SCRIPTSCATTER
T_TABULATEDSCATTER

Importance Sampling

T_IMPSAMPELLIPSOID
 

Raytrace control

T_RAYTRACECTRL
 

Trimming volume

T_TRIMVOLUME
 

Surfaces

T_CONICFOCI
T_REVOLVESURF
T_RULEDSURF
T_SURFVISUALIZE
T_TABULATEDCYLINDER
T_TOROIDALASPHERE
T_TUBE
 

Curves

T_APERTURECURVEOP
T_CIRCULARARC
T_CONICARC
T_CURVEBASICINFO
T_LINE
 

Sources

T_ACCEPTANCE_FILTER

T_SOURCEDIRAPODSINCOS

T_SOURCEDIRASTIGGAUSBEAM

T_SOURCEDIRLASERDIODE

T_SOURCEDIRM2LASER

T_SOURCEDIRPOSITIONGRID
T_SOURCEDIRRANGE
T_SOURCEPOLARIZATION
T_SOURCEPOSAPODLENGTH
T_SOURCEPOSAPODSAMPLED
T_SOURCEPOSBITMAP
T_SOURCEPOSSURFACE
T_SOURCEPRIMASTIG

T_SOURCEPRIMLASER

T_SOURCEPRIMLEDFF

T_SOURCEPRIMPTSRCCOH
T_SOURCEPRIMRAYFAN

T_SOURCEPROPSPEC
T_SOURCEUSERRAY
T_SOURCEVISUALIZE
T_WAVELENGTHSPEC
T_SYNTH_RAYS_FROM_FIELD
 

Diffraction Gratings

T_HOE
 

GRIN Materials

T_GRINCOMMON

Birefringent Materials

T_BIREFSAMPLE

Linear transformation primitive operation

T_COORDSYS
T_OPERATION
 

Best focus info

T_BESTFOCUS
 

Analysis plane specification

T_ANALYSIS
T_ANALYSISSURF
T_RAYFILTEROP

Surface Data Collector Visualization

T_COLLECTED_DATA_STATS

T_COLLECTED_DATUM

T_COLLECTOR_PROPERTIES