- Radeon ProRender SDK
- Downloading and Getting Started
- How to Use RPR SDK
- Data Types
- Data Structs
- Info and Setting Types
- rpr_aa_filter
- rpr_aov
- rpr_api_version
- rpr_bool
- rpr_buffer_element_type
- rpr_buffer_info
- rpr_camera_info
- rpr_camera_mode
- rpr_color_space
- rpr_component_type
- rpr_composite_info
- rpr_composite_type
- rpr_context_info
- rpr_context_sampler_type
- rpr_context_properties
- rpr_creation_flags
- rpr_curve_parameter
- rpr_environment_override
- rpr_framebuffer_info
- rpr_grid_indices_topology
- rpr_grid_parameter
- rpr_hetero_volume_filter
- rpr_hetero_volume_indices_topology
- rpr_hetero_volume_parameter
- rpr_image_filter_type
- rpr_image_info
- rpr_image_wrap_type
- rpr_instance_info
- rpr_light_info
- rpr_light_type
- rpr_lut_info
- rpr_material_node_arithmetic_operation
- rpr_material_node_info
- rpr_material_node_input
- rpr_material_node_input_info
- rpr_material_node_input_type
- rpr_material_node_lookup_value
- rpr_material_node_transform_op
- rpr_material_node_type
- rpr_material_node_uvtype_value
- rpr_material_system_info
- rpr_mesh_info
- rpr_object_info
- rpr_parameter_info
- rpr_parameter_type
- rpr_post_effect_info
- rpr_post_effect_type
- rpr_render_mode
- rpr_scene_info
- rpr_shape_info
- rpr_shape_type
- rpr_status
- rpr_subdiv_boundary_interfop_type
- rpr_tonemapping_operator
- rpr_ubermaterial_emission_mode
- rpr_ubermaterial_ior_mode
- rpr_volume_type
- Shaders
- rpr_material_node_add
- rpr_material_node_ao_map
- rpr_material_node_arithmetic
- rpr_material_node_blend
- rpr_material_node_blend_value
- rpr_material_node_buffer_sampler
- rpr_material_node_bump_map
- rpr_material_node_checker_texture
- rpr_material_node_constant_texture
- rpr_material_node_diffuse
- rpr_material_node_diffuse_refraction
- rpr_material_node_dot_texture
- rpr_material_node_emissive
- rpr_material_node_fresnel
- rpr_material_node_fresnel_schlick
- rpr_material_node_gradient_texture
- rpr_material_node_image_texture
- rpr_material_node_input_lookup
- rpr_material_node_microfacet
- rpr_material_node_microfacet_anisotropic_reflection
- rpr_material_node_microfacet_anisotropic_refraction
- rpr_material_node_microfacet_beckmann
- rpr_material_node_microfacet_refraction
- rpr_material_node_noise2d_texture
- rpr_material_node_normal_map
- rpr_material_node_orennayar
- rpr_material_node_passthrough
- rpr_material_node_phong
- rpr_material_node_reflection
- rpr_material_node_refraction
- rpr_material_node_transparent
- rpr_material_node_twosided
- rpr_material_node_uv_procedural
- rpr_material_node_uv_triplanar
- rpr_material_node_volume
- rpr_material_node_ward
- Tutorials
- Basic Scene Demo
- Context Creation
- Scene Creation
- Camera Setup
- Mesh Creation
- Instance Creation
- Deformation Motion Blur
- Point Light Creation
- Emissive Shape Creation
- Environment Light Creation
- Textured Material Creation
- Materials Demo
- Uber Material Creation
- SSS Uber Material Creation
- Two Sided Materials
- Tiled Rendering
- AOVs Setting
- Framebuffer Access
- OpenGL Interop
- Gamma Post Process Effect
- Curve Creation
- Import/Export
- Shadow Catcher
- Adaptive Sampling
- Tracing
- Parameters Enumeration
- Volume
- Hybrid
- Mesh Obj
- API Reference
- rprBufferGetInfo
- rprCameraGetInfo
- rprCameraLookAt
- rprCameraSetAngularMotion
- rprCameraSetApertureBlades
- rprCameraSetExposure
- rprCameraSetFarPlane
- rprCameraSetFocalLength
- rprCameraSetFocalTilt
- rprCameraSetFocusDistance
- rprCameraSetFStop
- rprCameraSetIPD
- rprCameraSetLensShift
- rprCameraSetLinearMotion
- rprCameraSetMode
- rprCameraSetNearPlane
- rprCameraSetOrthoHeight
- rprCameraSetOrthoWidth
- rprCameraSetSensorSize
- rprCameraSetTiltCorrection
- rprCameraSetTransform
- rprCompositeCompute
- rprCompositeGetInfo
- rprCompositeSetInput1u
- rprCompositeSetInput4f
- rprCompositeSetInputC
- rprCompositeSetInputFb
- rprCompositeSetInputLUT
- rprCompositeSetInputOp
- rprContextAbortRender
- rprContextAttachPostEffect
- rprContextAttachRenderLayer
- rprContextClearMemory
- rprContextCreateBuffer
- rprContextCreateCamera
- rprContextCreateComposite
- rprContextCreateCurve
- rprContextCreateDirectionalLight
- rprContextCreateDiskLight
- rprContextCreateEnvironmentLight
- rprContextCreateFrameBuffer
- rprContextCreateFramebufferFromGLTexture2D
- rprContextCreateGrid
- rprContextCreateHeteroVolume
- rprContextCreateIESLight
- rprContextCreateImage
- rprContextCreateImageFromFile
- rprContextCreateImageFromFileMemory
- rprContextCreateInstance
- rprContextCreateLUTFromData
- rprContextCreateLUTFromFile
- rprContextCreateMaterialSystem
- rprContextCreateMesh
- rprContextCreateMeshEx
- rprContextCreateMeshEx2
- rprContextCreatePointLight
- rprContextCreatePostEffect
- rprContextCreateScene
- rprContextCreateSkyLight
- rprContextCreateSphereLight
- rprContextCreateSpotLight
- rprContextDetachPostEffect
- rprContextDetachRenderLayer
- rprContextGetAOV
- rprContextGetAttachedPostEffect
- rprContextGetAttachedPostEffectCount
- rprContextGetInfo
- rprContextGetParameterInfo
- rprContextGetScene
- rprContextRender
- rprContextRenderTile
- rprContextResolveFrameBuffer
- rprContextSetActivePlugin
- rprContextSetAOV
- rprContextSetAOVindexLookup
- rprContextSetAOVindicesLookup
- rprContextSetParameterByKey1f
- rprContextSetParameterByKey1u
- rprContextSetParameterByKey3f
- rprContextSetParameterByKey4f
- rprContextSetParameterByKeyPtr
- rprContextSetParameterByKeyString
- rprContextSetParameterString
- rprContextSetScene
- rprCreateContext
- rprCurveGetInfo
- rprCurveSetMaterial
- rprCurveSetTransform
- rprCurveSetVisibility
- rprCurveSetVisibilityFlag
- rprDirectionalLightSetRadiantPower3f
- rprDirectionalLightSetShadowSoftnessAngle
- rprDiskLightSetAngle
- rprDiskLightSetRadiantPower3f
- rprDiskLightSetRadius
- rprEnvironmentLightAttachPortal
- rprEnvironmentLightDetachPortal
- rprEnvironmentLightGetEnvironmentLightOverride
- rprEnvironmentLightSetEnvironmentLightOverride
- rprEnvironmentLightSetImage
- rprEnvironmentLightSetIntensityScale
- rprFrameBufferClear
- rprFrameBufferFillWithColor
- rprFrameBufferGetInfo
- rprFrameBufferSaveToFile
- rprFrameBufferSaveToFileEx
- rprFrameBufferSetLPE
- rprGridGetInfo
- rprHeteroVolumeGetInfo
- rprHeteroVolumeSetAlbedo
- rprHeteroVolumeSetAlbedoGrid
- rprHeteroVolumeSetAlbedoLookup
- rprHeteroVolumeSetAlbedoScale
- rprHeteroVolumeSetDensityGrid
- rprHeteroVolumeSetDensityLookup
- rprHeteroVolumeSetDensityScale
- rprHeteroVolumeSetEmission
- rprHeteroVolumeSetEmissionGrid
- rprHeteroVolumeSetEmissionLookup
- rprHeteroVolumeSetEmissionScale
- rprHeteroVolumeSetFilter
- rprHeteroVolumeSetTransform
- rprIESLightSetImageFromFile
- rprIESLightSetImageFromIESdata
- rprIESLightSetRadiantPower3f
- rprImageGetInfo
- rprImageSetFilter
- rprImageSetGamma
- rprImageSetInternalCompression
- rprImageSetMipmapEnabled
- rprImageSetOcioColorspace
- rprImageSetUDIM
- rprImageSetWrap
- rprInstanceGetBaseShape
- rprLightGetInfo
- rprLightSetGroupId
- rprLightSetTransform
- rprMaterialNodeGetInfo
- rprMaterialNodeGetInputInfo
- rprMaterialNodeSetID
- rprMaterialNodeSetInputBufferDataByKey
- rprMaterialNodeSetInputFByKey
- rprMaterialNodeSetInputImageDataByKey
- rprMaterialNodeSetInputNByKey
- rprMaterialNodeSetInputUByKey
- rprMaterialSystemCreateNode
- rprMaterialSystemGetInfo
- rprMaterialSystemGetSize
- rprMeshGetInfo
- rprObjectDelete
- rprObjectSetName
- rprPointLightSetRadiantPower3f
- rprPostEffectGetInfo
- rprPostEffectSetParameter1f
- rprPostEffectSetParameter1u
- rprPostEffectSetParameter3f
- rprPostEffectSetParameter4f
- rprRegisterPlugin
- rprSceneAttachCurve
- rprSceneAttachHeteroVolume
- rprSceneAttachLight
- rprSceneAttachShape
- rprSceneClear
- rprSceneDetachCurve
- rprSceneDetachHeteroVolume
- rprSceneDetachLight
- rprSceneDetachShape
- rprSceneGetBackgroundImage
- rprSceneGetCamera
- rprSceneGetCameraRight
- rprSceneGetEnvironmentLight
- rprSceneGetInfo
- rprSceneSetBackgroundImage
- rprSceneSetCamera
- rprSceneSetCameraRight
- rprSceneSetEnvironmentLight
- rprShapeAttachRenderLayer
- rprShapeAutoAdaptSubdivisionFactor
- rprShapeDetachRenderLayer
- rprShapeGetInfo
- rprShapeMarkStatic
- rprShapeSetAngularMotion
- rprShapeSetContourIgnore
- rprShapeSetDisplacementMaterial
- rprShapeSetDisplacementScale
- rprShapeSetHeteroVolume
- rprShapeSetLayerMask
- rprShapeSetLightGroupID
- rprShapeSetLinearMotion
- rprShapeSetMaterial
- rprShapeSetMaterialFaces
- rprShapeSetMotionTransform
- rprShapeSetMotionTransformCount
- rprShapeSetObjectGroupID
- rprShapeSetObjectID
- rprShapeSetScaleMotion
- rprShapeSetReflectionCatcher
- rprShapeSetShadowCatcher
- rprShapeSetSubdivisionAutoRatioCap
- rprShapeSetSubdivisionBoundaryInterop
- rprShapeSetSubdivisionCreaseWeight
- rprShapeSetSubdivisionFactor
- rprShapeSetTransform
- rprShapeSetVertexValue
- rprShapeSetVisibility
- rprShapeSetVisibilityFlag
- rprShapeSetVisibilityInSpecular
- rprShapeSetVolumeMaterial
- rprSkyLightAttachPortal
- rprSkyLightDetachPortal
- rprSkyLightSetAlbedo
- rprSkyLightSetDirection
- rprSkyLightSetScale
- rprSkyLightSetTurbidity
- rprSphereLightSetRadiantPower3f
- rprSphereLightSetRadius
- rprSpotLightSetConeShape
- rprSpotLightSetImage
- rprSpotLightSetRadiantPower3f
- Transitioning from RPR 1.X to 2.0
- Radeon Image Filters
- Basic Example
- Filters
- ACES filmic tone mapping filter
- AI custom model filter
- AI denoiser filter
- AI upscale filter
- Auto linear tone mapping filter
- BGRA TO RGBA conversion filter
- Bilateral denoiser filter
- Binary operation filter
- Bloom filter
- Color space changing filter
- Convert filter
- Depth of field filter
- Dilate (erode) filter
- Drago tone mapping filter
- Dynamic resampling filter
- Edge-avoiding À-Trous wavelet filter
- Emboss filter
- Exponential tone mapping filter
- Filmic uncharted tone mapping filter
- Gamma correction filter
- Gaussian blurring filter
- Horizontal flip filter
- Hue-saturation changing filter
- Laplace edge detection filter
- Linear photographic tone mapping filter
- Linear tone mapping filter
- Local weighted regression filter
- Max-white tone mapping filter
- Median denoiser filter
- Morphological antialiasing filter
- Motion blur filter
- Motion buffer filter
- Multiplication filter
- NDC depth filter
- Photographic tone mapping filter
- Posterization filter
- Range remap filter
- Reinhard tone mapping filter
- Resampling filter
- RGB noise filter
- Rotation filter
- Sharpen filter
- Sobel edge detection filter
- Spread filter
- Temporal accumulation filter
- User defined filter
- Vertical flip filter
- Weighted sum filter
- Combining Filters
- Data Types
- Data Structs
- Info and Setting Types
- API Reference
- rifCommandQueueAttachImageFilter
- rifCommandQueueAttachImageFilterRect
- rifCommandQueueDetachImageFilter
- rifContextCreateCommandQueue
- rifContextCreateImage
- rifContextCreateImageFilter
- rifContextCreateImageFromDirectX11Buffer
- rifContextCreateImageFromDirectX11Texture
- rifContextCreateImageFromDirectX12Memory
- rifContextCreateImageFromMetalMemory
- rifContextCreateImageFromOpenClMemory
- rifContextCreateImageFromOpenGlTexture
- rifContextExecuteCommandQueue
- rifContextGetDeviceInfo
- rifContextGetInfo
- rifContextSetInfo
- rifCreateContext
- rifCreateContextFromDirectX12Context
- rifCreateContextFromMetalContext
- rifCreateContextFromOpenClContext
- rifCreateOpenCLContextSharedWithDirectX11
- rifFlushQueue
- rifGetDeviceCount
- rifGetErrorCodeDescription
- rifGetErrorCodeString
- rifGetLastErrorMessage
- rifImageFilterClearParameterImage
- rifImageFilterGetInfo
- rifImageFilterSetComputeType
- rifImageFilterSetParameter1f
- rifImageFilterSetParameter1i
- rifImageFilterSetParameter1u
- rifImageFilterSetParameter2f
- rifImageFilterSetParameter2i
- rifImageFilterSetParameter2u
- rifImageFilterSetParameter3f
- rifImageFilterSetParameter3i
- rifImageFilterSetParameter3u
- rifImageFilterSetParameter4f
- rifImageFilterSetParameter4i
- rifImageFilterSetParameter4u
- rifImageFilterSetParameter8f
- rifImageFilterSetParameter8i
- rifImageFilterSetParameter8u
- rifImageFilterSetParameter16f
- rifImageFilterSetParameter16i
- rifImageFilterSetParameter16u
- rifImageFilterSetParameterFloatArray
- rifImageFilterSetParameterImage
- rifImageFilterSetParameterImageArray
- rifImageFilterSetParameterString
- rifImageGetInfo
- rifImageMap
- rifImageUnmap
- rifObjectDelete
- rifParameterGetInfo
- rifSyncronizeQueue
- Tracing
- Radeon Machine Learning
- Examples
- Data Types
- Data Structs
- rml_context
- rml_context_params
- rml_graph
- rml_memory_info
- rml_model
- rml_op
- rml_op_batch_norm_params
- rml_op_bias_add_params
- rml_op_binary_params
- rml_op_cast_params
- rml_op_celu_params
- rml_op_clip_params
- rml_op_concat_params
- rml_op_const_params
- rml_op_conv_2d_params
- rml_op_conv_2d_transpose_params
- rml_op_desc
- rml_op_depth_to_space_params
- rml_op_elu_params
- rml_op_flatten_params
- rml_op_gemm_params
- rml_op_leaky_relu_params
- rml_op_local_response_norm_params
- rml_op_pad_params
- rml_op_placeholder_params
- rml_op_pool_2d_params
- rml_op_pool_2d_global_params
- rml_op_port_params
- rml_op_pow_params
- rml_op_quantize_linear_params
- rml_op_reduce_params
- rml_op_resize_2d_params
- rml_op_reshape_params
- rml_op_round_params
- rml_op_selu_params
- rml_op_slice_params
- rml_op_space_to_depth_params
- rml_op_squeeze_params
- rml_op_stack_params
- rml_op_thresholded_relu_params
- rml_op_top_k_params
- rml_op_transpose_params
- rml_op_unary_params
- rml_op_unsqueeze_params
- rml_size_2d
- rml_strings
- rml_tensor
- rml_tensor_info
- Info and Setting Types
- API Reference
- rmlConnectGraphs
- rmlCreateContextFromClQueue
- rmlCreateContextFromD3DQueue
- rmlCreateContextFromMTLQueue
- rmlCreateDefaultContext
- rmlCreateGraph
- rmlCreateModelFromGraph
- rmlCreateOperation
- rmlCreateTensor
- rmlCreateTensorFromClBuffer
- rmlCreateTensorFromD3DResource
- rmlCreateTensorFromMTLBuffer
- rmlGetClBufferFromTensor
- rmlGetD3DResourceFromTensor
- rmlGetGraphInputNames
- rmlGetGraphOutputNames
- rmlGetLastError
- rmlGetMTLBufferFromTensor
- rmlGetModelInputInfo
- rmlGetModelMemoryInfo
- rmlGetModelOutputInfo
- rmlGetTensorInfo
- rmlInfer
- rmlLoadGraph
- rmlLoadGraphFromBuffer
- rmlLoadGraphFromFile
- rmlMapTensor
- rmlPrepareModel
- rmlReleaseContext
- rmlReleaseGraph
- rmlReleaseModel
- rmlReleaseTensor
- rmlResetModelStates
- rmlSetD3DCommandList
- rmlSetDMLFloat16Allowed
- rmlSetLoggingEnabled
- rmlSetMIOpenAutoTuningOn
- rmlSetModelInput
- rmlSetModelInputInfo
- rmlSetModelOutput
- rmlSetModelOutputNames
- rmlSetNumD3DCommandLists
- rmlUnmapTensor
- RadeonRays
- Examples
- Data Types
- Data Structs
- Info and Setting Types
- API Reference
- rrAllocateAccelerationStructureDevicePtr
- rrAllocateCommandStream
- rrAllocateDeviceBuffer
- rrCmdBuildGeometry
- rrCmdBuildScene
- rrCmdIntersect
- rrCreateContext
- rrCreateContextDX
- rrCreateContextMTL
- rrCreateContextVk
- rrCreateGroupMPS
- rrDestroyContext
- rrGetCommandStreamFromD3D12CommandList
- rrGetCommandStreamFromMTLCommandBuffer
- rrGetCommandStreamFromVkCommandBuffer
- rrGetDevicePtrFromBuffer
- rrGetDevicePtrFromD3D12Resource
- rrGetDevicePtrFromMTLResource
- rrGetDevicePtrFromVkBuffer
- rrGetGeometryBuildMemoryRequirements
- rrGetSceneBuildMemoryRequirements
- rrGetTraceMemoryRequirements
- rrMapDevicePtr
- rrReleaseCommandStream
- rrReleaseDevicePtr
- rrReleaseEvent
- rrReleaseExternalCommandStream
- rrSetLogFile
- rrSetLogLevel
- rrSubmitCommandStream
- rrUnmapDevicePtr
- rrWaitEvent
- Uber Shader
- Radeon ProRender Plug-ins
- Material Library
- Blender
- Maya
- 3ds Max
- Unreal Engine
- Houdini
- Inventor
- USD Hydra Delegate
Portal Light¶
Portals are intended to guide environment lighting in interior scenes. Typically placed in windows, doors or other relatively small openings, portals cast light into enclosed scenes from the outside environment.
Portals act as virtual windows and allow artists to specify the exact point where environment light should come from, instead of casting light over the entire scene. By sampling environment light more efficiently, portals can reduce the amount of noise with less samples per pixel required.

Note that portals let light through in only one direction, so the geometry normal should face inwards (towards the interior scene), similarly to a window that lets light into a room. Otherwise, portal light will not be rendered properly.
Portals sample lighting color from the environment light, either IBL or Sun & Sky. The intensity and other parameters of portal light can be adjusted using the environment lighting settings. For details, see the Environment Settings section in the documentation.
![]() IBL portal light |
![]() Sun & Sky portal light |
Adding Portal Light¶
A portal is usually a plane object, but can also be any piece of geometry. To turn an object into a portal:
Make sure that AMD Radeon ProRender is set as the active render engine in Blender.
For details, see Switching to Radeon ProRender for Blender.
Select the necessary object in the scene.
In the Blender Properties editor, switch to the Object tab to access object settings.
Expand the RPR Settings panel and enable the Portal Light option.
Cover with the portal a window or another opening through which light should be let into the scene.
Adjust environment lighting settings for the portal as required.