FfxBrixelizerGIDispatchDescription
A structure encapsulating the parameters used for computing a dispatch by the Brixelizer GI context.
File location: sdk/include/FidelityFX/host/ffx_brixelizergi.h
Detailed description
A structure encapsulating the parameters used for computing a dispatch by the Brixelizer GI context.
Data fields
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Type |
Description |
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view
The view matrix for the scene in row major order.
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projection
The projection matrix for the scene in row major order.
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prevView
The view matrix for the previous frame of the scene in row major order.
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prevProjection
The projection matrix for the scene in row major order.
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cameraPosition
A 3-dimensional vector representing the position of the camera.
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startCascade
The index of the start cascade for use with ray marching with Brixelizer.
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endCascade
The index of the end cascade for use with ray marching with Brixelizer.
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rayPushoff
The distance from a surface along the normal vector to offset the diffuse ray origin.
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sdfSolveEps
The epsilon value for ray marching to be used with Brixelizer for diffuse rays.
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specularRayPushoff
The distance from a surface along the normal vector to offset the specular ray origin.
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specularSDFSolveEps
The epsilon value for ray marching to be used with Brixelizer for specular rays.
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tMin
The TMin value for use with Brixelizer.
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tMax
The TMax value for use with Brixelizer.
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environmentMap
The environment map.
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prevLitOutput
The lit output from the previous frame.
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depth
The input depth buffer.
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historyDepth
The previous frame input depth buffer.
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normal
The input normal buffer.
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historyNormal
The previous frame input normal buffer.
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roughness
The resource containing roughness information.
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motionVectors
The input motion vectors texture.
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noiseTexture
The input blue noise texture.
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normalsUnpackMul
A multiply factor to transform the normal to the space expected by Brixelizer GI.
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normalsUnpackAdd
An offset to transform the normal to the space expected by Brixelizer GI.
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isRoughnessPerceptual
A boolean to describe the space used to store roughness in the materialParameters texture. If false, we assume roughness squared was stored in the Gbuffer.
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roughnessChannel
The channel to read the roughness from the roughness texture.
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roughnessThreshold
Regions with a roughness value greater than this threshold won’t spawn specular rays.
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environmentMapIntensity
The value to scale the contribution from the environment map.
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motionVectorScale
The scale factor to apply to motion vectors.
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sdfAtlas
The SDF Atlas resource used by Brixelizer.
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bricksAABBs
The brick AABBs resource used by Brixelizer.
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cascadeAABBTrees
The cascade AABB tree resources used by Brixelizer.
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cascadeBrickMaps
The cascade brick map resources used by Brixelizer.
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outputDiffuseGI
A texture to write the output diffuse GI calculated by Brixelizer GI.
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outputSpecularGI
A texture to write the output specular GI calculated by Brixelizer GI.
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brixelizerContext
A pointer to the Brixelizer context for use with Brixelizer GI.
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