Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Save
RDATA_GLOBALSAVE
Parameter: Enable Multi-Pass Rendering
RDATA_MULTIPASS_ENABLE
Parameter: Enable Stereoscopic Rendering
RDATA_STEREO
Parameter: Material Override
RDATA_MATERIAL_OVERRIDE
Parameter: Renderer
RDATA_RENDERENGINE
Parameter: Width
RDATA_XRES
Parameter: Width
RDATA_XRES_VIRTUAL
Parameter: Height
RDATA_YRES
Parameter: Height
RDATA_YRES_VIRTUAL
Parameter: Lock Ratio
RDATA_LOCKRATIO
Parameter: Adapt Data Rate
RDATA_ADAPT_DATARATE
Parameter: Resolution
RDATA_PIXELRESOLUTION
Parameter: Resolution
RDATA_PIXELRESOLUTION_VIRTUAL
Parameter: Render Region
RDATA_RENDERREGION
Parameter: Left Border
RDATA_RENDERREGION_LEFT
Parameter: Copy from IRR
RDATA_FROMIRR
Parameter: Top Border
RDATA_RENDERREGION_TOP
Parameter: Right Border
RDATA_RENDERREGION_RIGHT
Parameter: Bottom Border
RDATA_RENDERREGION_BOTTOM
Parameter: Film Aspect
RDATA_FILMASPECT
Parameter: RDATA_FILMPRESET
RDATA_FILMPRESET
Parameter: Pixel Aspect
RDATA_PIXELASPECT
Parameter: Frame Rate
RDATA_FRAMERATE
Parameter: Frame Range
RDATA_FRAMESEQUENCE
Parameter: From
RDATA_FRAMEFROM
Parameter: To
RDATA_FRAMETO
Parameter: Frame Step
RDATA_FRAMESTEP
Parameter: Fields
RDATA_FIELD
Parameter: Annotations
RDATA_HELPTEXT
Parameter: Save
RDATA_SAVEIMAGE
Parameter: File
RDATA_PATH
Parameter: Format
RDATA_FORMAT
Parameter: Options...
RDATA_SAVEOPTIONS
Parameter: Depth
RDATA_FORMATDEPTH
Parameter: Name
RDATA_NAMEFORMAT
Parameter: Image Color Profile
RDATA_IMAGECOLORPROFILE
Parameter: Alpha Channel
RDATA_ALPHACHANNEL
Parameter: Straight Alpha
RDATA_STRAIGHTALPHA
Parameter: Separate Alpha
RDATA_SEPARATEALPHA
Parameter: 8 Bit Dithering
RDATA_TRUECOLORDITHERING
Parameter: Include Sound
RDATA_INCLUDESOUND
Parameter: Bake View Transform
RDATA_BAKE_OCIO_VIEW_TRANSFORM
Parameter: Generate File
RDATA_VRGENERATE
Parameter: Horizontal Steps
RDATA_HSTEPS
Parameter: Start Angle
RDATA_HSTART
Parameter: End Angle
RDATA_HEND
Parameter: Vertical Steps
RDATA_VSTEPS
Parameter: Start Angle
RDATA_VSTART
Parameter: End Angle
RDATA_VEND
Parameter: Default X Resolution
RDATA_VRDEFAULTX
Parameter: Default Y Resolution
RDATA_VRDEFAULTY
Parameter: Save
RDATA_MULTIPASS_SAVEIMAGE
Parameter: File
RDATA_MULTIPASS_FILENAME
Parameter: Format
RDATA_MULTIPASS_SAVEFORMAT
Parameter: Options...
RDATA_MULTIPASS_SAVEOPTIONS
Parameter: Depth
RDATA_MULTIPASS_SAVEDEPTH
Parameter: Multi-Layer File
RDATA_MULTIPASS_SAVEONEFILE
Parameter: Layer Name as Suffix
RDATA_MULTIPASS_SUFFIX
Parameter: User Defined Layer Name
RDATA_MULTIPASS_USERNAMES
Parameter: Straight Alpha
RDATA_MULTIPASS_STRAIGHTALPHA
Parameter: Save
RDATA_PROJECTFILE
Parameter: Target Application
RDATA_PROJECTFILETYPE
Parameter: Relative
RDATA_PROJECTFILELOCAL
Parameter: Include Timeline Marker
RDATA_PROJECTFILEMARKER
Parameter: Include 3D Data
RDATA_PROJECTFILEDATA
Parameter: Save FBX File
RDATA_PROJECTFILEFBX
Parameter: Save Alembic File
RDATA_PROJECTFILEABC
Parameter: Save Project File...
RDATA_PROJECTFILESAVE
Parameter: Separate Lights
RDATA_MULTIPASS_LIGHTS
Parameter: Mode
RDATA_MULTIPASS_LIGHTMODE
Parameter: Shadow Correction
RDATA_MULTIPASS_SHADOWCORRECTION
Parameter: Anti-Aliasing
RDATA_ANTIALIASING
Parameter: Min Level
RDATA_AAMINLEVEL
Parameter: Max Level
RDATA_AAMAXLEVEL
Parameter: Threshold
RDATA_AATHRESHOLD
Parameter: Use Object Properties
RDATA_AAOBJECTPROPERTIES
Parameter: Consider Multi-Passes
RDATA_AACONSIDERMULTIPASSES
Parameter: Filter
RDATA_AAFILTER
Parameter: Custom Size
RDATA_AACUSTOMFILTERSIZE
Parameter: Filter Width
RDATA_AAFILTERSIZEX
Parameter: Filter Height
RDATA_AAFILTERSIZEY
Parameter: Clip Negative Component
RDATA_AACLIPNEGATIVE
Parameter: MIP Scale
RDATA_AAMIPGLOBAL
Parameter: Small Fragments
RDATA_SMALLFRAGMENTS
Parameter: Custom Material
RDATA_MATERIAL_OVERRIDE_LINK
Parameter: Mode
RDATA_MATERIAL_OVERRIDE_EXCLUSION_MODE
Parameter: Materials
RDATA_MATERIAL_OVERRIDE_EXCLUSION_LIST
Parameter: Diffuse Color
RDATA_MATERIAL_OVERRIDE_COLOR
Parameter: Luminance
RDATA_MATERIAL_OVERRIDE_LUMINANCE
Parameter: Transparency
RDATA_MATERIAL_OVERRIDE_TRANS
Parameter: Reflectance
RDATA_MATERIAL_OVERRIDE_REFL
Parameter: Bump
RDATA_MATERIAL_OVERRIDE_BUMP
Parameter: Normal
RDATA_MATERIAL_OVERRIDE_NORM
Parameter: Alpha
RDATA_MATERIAL_OVERRIDE_ALPHA
Parameter: Displacement
RDATA_MATERIAL_OVERRIDE_DSPL
Parameter: Transparency
RDATA_OPTION_TRANSPARENCY
Parameter: Ray Threshold
RDATA_THRESHOLD
Parameter: Refraction
RDATA_OPTION_REFRACTION
Parameter: Ray Depth
RDATA_RAYDEPTH
Parameter: Reflection
RDATA_OPTION_REFLECTION
Parameter: Reflection Depth
RDATA_REFLECTIONDEPTH
Parameter: Shadow
RDATA_OPTION_SHADOW
Parameter: Shadow Depth
RDATA_SHADOWDEPTH
Parameter: Limit Reflections to Floor/Sky
RDATA_LIMITREFLECTION
Parameter: Level of Detail
RDATA_LOD
Parameter: Blurriness
RDATA_ENABLEBLURRY
Parameter: Global Brightness
RDATA_GLOBALBRIGHTNESS
Parameter: Limit Shadows to Soft
RDATA_LIMITSHADOW
Parameter: Motion Scale
RDATA_MOTIONLENGTH
Parameter: Cache Shadow Maps
RDATA_CACHESHADOWMAPS
Parameter: Active Object Only
RDATA_ACTIVEOBJECTONLY
Parameter: Default Light
RDATA_AUTOLIGHT
Parameter: Textures
RDATA_TEXTURES
Parameter: Show Texture Errors
RDATA_TEXTUREERROR
Parameter: Volumetric Lighting
RDATA_VOLUMETRICLIGHTING
Parameter: Use Display Tag LOD
RDATA_USELOD
Parameter: Render HUD
RDATA_SHOWHUD
Parameter: Render Doodle
RDATA_RENDERDOODLE
Parameter: Sub Polygon Displacement
RDATA_ENABLESPD
Parameter: Post Effects
RDATA_POSTEFFECTS_ENABLE
Parameter: Identical Noise Distribution
RDATA_NOISE_LOCK
Parameter: Subsurface Scattering
RDATA_SSS
Parameter: Bucket Sequence
RDATA_BUCKETSEQUENCE
Parameter: Automatic Size
RDATA_AUTOMATICBUCKETSIZE
Parameter: Bucket Width
RDATA_BUCKETSIZEX
Parameter: Bucket Height
RDATA_BUCKETSIZEY
Parameter: Calculate Stereoscopic Images
RDATA_STEREO_CALCRESULT
Parameter: Single Channel
RDATA_STEREO_SINGLECHANNEL
Parameter: Non-Stereoscopic Image
RDATA_STEREO_CALCULATE_ORIGINAL
Parameter: Use Folder for Saving
RDATA_STEREO_SAVE_FOLDER
Parameter: Channels
RDATA_STEREO_CHANNELS
Parameter: Mode
RDATA_STEREO_MODE
Parameter: Additional Parallax (pixel)
RDATA_STEREO_PARALLAX
Parameter: Swap Left/Right
RDATA_STEREO_SWAP
Parameter: System
RDATA_STEREO_ANAGLYPH_SYSTEM_FULL
Parameter: System
RDATA_STEREO_ANAGLYPH_SYSTEM_NON_FULL
Parameter: Left
RDATA_STEREO_ANAGLYPH_COL_LEFT
Parameter: Right
RDATA_STEREO_ANAGLYPH_COL_RIGHT
Parameter: Method
RDATA_STEREO_ANAGLYPH_METHOD
Parameter: Alignment
RDATA_STEREO_SBS_ALIGN
Parameter: Left Mirror X
RDATA_STEREO_SBS_LEFT_MX
Parameter: Left Mirror Y
RDATA_STEREO_SBS_LEFT_MY
Parameter: Right Mirror X
RDATA_STEREO_SBS_RIGHT_MX
Parameter: Right Mirror Y
RDATA_STEREO_SBS_RIGHT_MY
Parameter: Type
RDATA_STEREO_INTERLACED_TYPE
Parameter: Distribute Subsurface Caches
RDATA_NET_CACHES_SSS
Parameter: Distribute Ambient Occlusion Caches
RDATA_NET_CACHES_AO
Parameter: Distribute Irradiance Caches
RDATA_NET_CACHES_GI
Parameter: Distribute Light Mapping Caches
RDATA_NET_CACHES_LM
Parameter: Distribute Radiosity Map Caches
RDATA_NET_CACHES_RM