Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: Gradients
SLA_CHEEN_GRADIENTS
Parameter: Diffuse
SLA_CHEEN_DIFFUSE
Parameter: Specular 1
SLA_CHEEN_SPECULAR1
Parameter: Specular 2
SLA_CHEEN_SPECULAR2
Parameter: Specular 3
SLA_CHEEN_SPECULAR3
Parameter: Transparency
SLA_CHEEN_TRANSPARENCY
Parameter: Reflection
SLA_CHEEN_REFLECTION
Parameter: Environment
SLA_CHEEN_ENVIRONMENT
Parameter: Ambient
SLA_CHEEN_AMBIENT
Parameter: Roughness
SLA_CHEEN_ROUGHNESS
Parameter: Anisotropy
SLA_CHEEN_ANISOTROPY
Parameter: Esoterica
SLA_CHEEN_ESOTERICA
Parameter: Color
SLA_CHEEN_GRADIENTS_COLOR
Parameter: Opacity
SLA_CHEEN_GRADIENTS_OPACITY
Parameter: Surface Color
SLA_CHEEN_DIFFUSE_SURF_COLOR
Parameter: Algorithm
SLA_CHEEN_DIFFUSE_ALGORITHM
Parameter: Roughness
SLA_CHEEN_DIFFUSE_ROUGHNESS
Parameter: Surface Illumination
SLA_CHEEN_DIFFUSE_SURF_ILLUMINATION
Parameter: Contrast
SLA_CHEEN_DIFFUSE_CONTRAST
Parameter: Color
SLA_CHEEN_SPEC1_COLOR
Parameter: Intensity
SLA_CHEEN_SPEC1_INTENSITY
Parameter: Size
SLA_CHEEN_SPEC1_SIZE
Parameter: Contrast
SLA_CHEEN_SPEC1_CONTRAST
Parameter: Glare
SLA_CHEEN_SPEC1_GLARE
Parameter: Falloff
SLA_CHEEN_SPEC1_FALLOFF
Parameter: Color
SLA_CHEEN_SPEC2_COLOR
Parameter: Intensity
SLA_CHEEN_SPEC2_INTENSITY
Parameter: Size
SLA_CHEEN_SPEC2_SIZE
Parameter: Contrast
SLA_CHEEN_SPEC2_CONTRAST
Parameter: Glare
SLA_CHEEN_SPEC2_GLARE
Parameter: Falloff
SLA_CHEEN_SPEC2_FALLOFF
Parameter: Color
SLA_CHEEN_SPEC3_COLOR
Parameter: Intensity
SLA_CHEEN_SPEC3_INTENSITY
Parameter: Size
SLA_CHEEN_SPEC3_SIZE
Parameter: Contrast
SLA_CHEEN_SPEC3_CONTRAST
Parameter: Glare
SLA_CHEEN_SPEC3_GLARE
Parameter: Falloff
SLA_CHEEN_SPEC3_FALLOFF
Parameter: Refraction Index
SLA_CHEEN_TRANS_REFRACTION_INDEX
Parameter: Internal Refraction
SLA_CHEEN_TRANS_INTERNAL_REFLECTION
Parameter: Solid Object
SLA_CHEEN_TRANS_SOLID_OBJECT
Parameter: Intensity
SLA_CHEEN_REFLECTION_INTENSITY
Parameter: Edge Intensity
SLA_CHEEN_REFLECTION_EDGE_INTENSITY
Parameter: Falloff
SLA_CHEEN_REFLECTION_FALLOFF
Parameter: Reflection Color
SLA_CHEEN_REFLECTION_REFLECTION_COLOR
Parameter: Reflection Edge Color
SLA_CHEEN_REFLECTION_EDGE_COLOR
Parameter: Image
SLA_CHEEN_ENVIRONMENT_IMAGE
Parameter: Intensity
SLA_CHEEN_ENVIRONMENT_INTENSITY
Parameter: Glare
SLA_CHEEN_ENVIRONMENT_GLARE
Parameter: Falloff
SLA_CHEEN_ENVIRONMENT_FALLOFF
Parameter: Utilize Anisotropic Scratches
SLA_CHEEN_ENVIRONMENT_UTILIZE_ANISO_SCRATCHES
Parameter: Blur
SLA_CHEEN_ENVIRONMENT_BLUR
Parameter: Samples
SLA_CHEEN_ENVIRONMENT_SAMPLES
Parameter: Jitter
SLA_CHEEN_ENVIRONMENT_JITTER
Parameter: Environment Color
SLA_CHEEN_ENVIRONMENT_ENVIRONMENT_COLOR
Parameter: Edge Color
SLA_CHEEN_ENVIRONMENT_EDGE_COLOR
Parameter: Color
SLA_CHEEN_AMBIENT_COLOR
Parameter: Intensity
SLA_CHEEN_AMBIENT_INTENSITY
Parameter: Edge Intensity
SLA_CHEEN_AMBIENT_EDGE_INTENSITY
Parameter: Falloff
SLA_CHEEN_AMBIENT_FALLOFF
Parameter: Seed
SLA_CHEEN_ROUGHNESS_SEED
Parameter: Function
SLA_CHEEN_ROUGHNESS_NOISE
Parameter: Amplitude
SLA_CHEEN_ROUGHNESS_AMPLITUDE
Parameter: Octaves
SLA_CHEEN_ROUGHNESS_OCTAVES
Parameter: Scale
SLA_CHEEN_ROUGHNESS_SCALE
Parameter: Speed
SLA_CHEEN_ROUGHNESS_SPEED
Parameter: Attenuation
SLA_CHEEN_ROUGHNESS_ATTENUATION
Parameter: Delta
SLA_CHEEN_ROUGHNESS_DELTA
Parameter: Hard Bump
SLA_CHEEN_ROUGHNESS_HARD_BUMP
Parameter: Absolute
SLA_CHEEN_ROUGHNESS_ABSOLUTE
Parameter: Low Clip
SLA_CHEEN_ROUGHNESS_LOW_CLIP
Parameter: High Clip
SLA_CHEEN_ROUGHNESS_HIGH_CLIP
Parameter: Grit Color
SLA_CHEEN_ROUGHNESS_GRIT_COLOR
Parameter: Grit Intensity
SLA_CHEEN_ROUGHNESS_GRIT_INTENSITY
Parameter: Grit Low Clip
SLA_CHEEN_ROUGHNESS_GRIT_LOW_CLIP
Parameter: Grit High Clip
SLA_CHEEN_ROUGHNESS_GRIT_HIGH_CLIP
Parameter: Projection
SLA_CHEEN_ANISOTROPY_PROJECTION
Parameter: Projection Scale
SLA_CHEEN_ANISOTROPY_PROJ_SCALE
Parameter: Roughness X
SLA_CHEEN_ANISOTROPY_X_ROUGH
Parameter: Roughness Y
SLA_CHEEN_ANISOTROPY_Y_ROUGH
Parameter: Amplitude
SLA_CHEEN_ANISOTROPY_AMPL
Parameter: Scale
SLA_CHEEN_ANISOTROPY_SCALE
Parameter: Length
SLA_CHEEN_ANISOTROPY_LENGTH
Parameter: Attenuation
SLA_CHEEN_ANISOTROPY_ATT
Parameter: Specular 1
SLA_CHEEN_ANISOTROPY_CHANNEL1
Parameter: Specular 2
SLA_CHEEN_ANISOTROPY_CHANNEL2
Parameter: Specular 3
SLA_CHEEN_ANISOTROPY_CHANNEL3
Parameter: Global Shadow Opacity
SLA_CHEEN_ESOTERICA_OPACITY