Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Gradients
SLA_CHEEN_GRADIENTSParameter: Diffuse
SLA_CHEEN_DIFFUSEParameter: Specular 1
SLA_CHEEN_SPECULAR1Parameter: Specular 2
SLA_CHEEN_SPECULAR2Parameter: Specular 3
SLA_CHEEN_SPECULAR3Parameter: Transparency
SLA_CHEEN_TRANSPARENCYParameter: Reflection
SLA_CHEEN_REFLECTIONParameter: Environment
SLA_CHEEN_ENVIRONMENTParameter: Ambient
SLA_CHEEN_AMBIENTParameter: Roughness
SLA_CHEEN_ROUGHNESSParameter: Anisotropy
SLA_CHEEN_ANISOTROPYParameter: Esoterica
SLA_CHEEN_ESOTERICAParameter: Color
SLA_CHEEN_GRADIENTS_COLORParameter: Opacity
SLA_CHEEN_GRADIENTS_OPACITYParameter: Surface Color
SLA_CHEEN_DIFFUSE_SURF_COLORParameter: Algorithm
SLA_CHEEN_DIFFUSE_ALGORITHMParameter: Roughness
SLA_CHEEN_DIFFUSE_ROUGHNESSParameter: Surface Illumination
SLA_CHEEN_DIFFUSE_SURF_ILLUMINATIONParameter: Contrast
SLA_CHEEN_DIFFUSE_CONTRASTParameter: Color
SLA_CHEEN_SPEC1_COLORParameter: Intensity
SLA_CHEEN_SPEC1_INTENSITYParameter: Size
SLA_CHEEN_SPEC1_SIZEParameter: Contrast
SLA_CHEEN_SPEC1_CONTRASTParameter: Glare
SLA_CHEEN_SPEC1_GLAREParameter: Falloff
SLA_CHEEN_SPEC1_FALLOFFParameter: Color
SLA_CHEEN_SPEC2_COLORParameter: Intensity
SLA_CHEEN_SPEC2_INTENSITYParameter: Size
SLA_CHEEN_SPEC2_SIZEParameter: Contrast
SLA_CHEEN_SPEC2_CONTRASTParameter: Glare
SLA_CHEEN_SPEC2_GLAREParameter: Falloff
SLA_CHEEN_SPEC2_FALLOFFParameter: Color
SLA_CHEEN_SPEC3_COLORParameter: Intensity
SLA_CHEEN_SPEC3_INTENSITYParameter: Size
SLA_CHEEN_SPEC3_SIZEParameter: Contrast
SLA_CHEEN_SPEC3_CONTRASTParameter: Glare
SLA_CHEEN_SPEC3_GLAREParameter: Falloff
SLA_CHEEN_SPEC3_FALLOFFParameter: Refraction Index
SLA_CHEEN_TRANS_REFRACTION_INDEXParameter: Internal Refraction
SLA_CHEEN_TRANS_INTERNAL_REFLECTIONParameter: Solid Object
SLA_CHEEN_TRANS_SOLID_OBJECTParameter: Intensity
SLA_CHEEN_REFLECTION_INTENSITYParameter: Edge Intensity
SLA_CHEEN_REFLECTION_EDGE_INTENSITYParameter: Falloff
SLA_CHEEN_REFLECTION_FALLOFFParameter: Reflection Color
SLA_CHEEN_REFLECTION_REFLECTION_COLORParameter: Reflection Edge Color
SLA_CHEEN_REFLECTION_EDGE_COLORParameter: Image
SLA_CHEEN_ENVIRONMENT_IMAGEParameter: Intensity
SLA_CHEEN_ENVIRONMENT_INTENSITYParameter: Glare
SLA_CHEEN_ENVIRONMENT_GLAREParameter: Falloff
SLA_CHEEN_ENVIRONMENT_FALLOFFParameter: Utilize Anisotropic Scratches
SLA_CHEEN_ENVIRONMENT_UTILIZE_ANISO_SCRATCHESParameter: Blur
SLA_CHEEN_ENVIRONMENT_BLURParameter: Samples
SLA_CHEEN_ENVIRONMENT_SAMPLESParameter: Jitter
SLA_CHEEN_ENVIRONMENT_JITTERParameter: Environment Color
SLA_CHEEN_ENVIRONMENT_ENVIRONMENT_COLORParameter: Edge Color
SLA_CHEEN_ENVIRONMENT_EDGE_COLORParameter: Color
SLA_CHEEN_AMBIENT_COLORParameter: Intensity
SLA_CHEEN_AMBIENT_INTENSITYParameter: Edge Intensity
SLA_CHEEN_AMBIENT_EDGE_INTENSITYParameter: Falloff
SLA_CHEEN_AMBIENT_FALLOFFParameter: Seed
SLA_CHEEN_ROUGHNESS_SEEDParameter: Function
SLA_CHEEN_ROUGHNESS_NOISEParameter: Amplitude
SLA_CHEEN_ROUGHNESS_AMPLITUDEParameter: Octaves
SLA_CHEEN_ROUGHNESS_OCTAVESParameter: Scale
SLA_CHEEN_ROUGHNESS_SCALEParameter: Speed
SLA_CHEEN_ROUGHNESS_SPEEDParameter: Attenuation
SLA_CHEEN_ROUGHNESS_ATTENUATIONParameter: Delta
SLA_CHEEN_ROUGHNESS_DELTAParameter: Hard Bump
SLA_CHEEN_ROUGHNESS_HARD_BUMPParameter: Absolute
SLA_CHEEN_ROUGHNESS_ABSOLUTEParameter: Low Clip
SLA_CHEEN_ROUGHNESS_LOW_CLIPParameter: High Clip
SLA_CHEEN_ROUGHNESS_HIGH_CLIPParameter: Grit Color
SLA_CHEEN_ROUGHNESS_GRIT_COLORParameter: Grit Intensity
SLA_CHEEN_ROUGHNESS_GRIT_INTENSITYParameter: Grit Low Clip
SLA_CHEEN_ROUGHNESS_GRIT_LOW_CLIPParameter: Grit High Clip
SLA_CHEEN_ROUGHNESS_GRIT_HIGH_CLIPParameter: Projection
SLA_CHEEN_ANISOTROPY_PROJECTIONParameter: Projection Scale
SLA_CHEEN_ANISOTROPY_PROJ_SCALEParameter: Roughness X
SLA_CHEEN_ANISOTROPY_X_ROUGHParameter: Roughness Y
SLA_CHEEN_ANISOTROPY_Y_ROUGHParameter: Amplitude
SLA_CHEEN_ANISOTROPY_AMPLParameter: Scale
SLA_CHEEN_ANISOTROPY_SCALEParameter: Length
SLA_CHEEN_ANISOTROPY_LENGTHParameter: Attenuation
SLA_CHEEN_ANISOTROPY_ATTParameter: Specular 1
SLA_CHEEN_ANISOTROPY_CHANNEL1Parameter: Specular 2
SLA_CHEEN_ANISOTROPY_CHANNEL2Parameter: Specular 3
SLA_CHEEN_ANISOTROPY_CHANNEL3Parameter: Global Shadow Opacity
SLA_CHEEN_ESOTERICA_OPACITY