Notch Notch Manual 0.9.23
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Screen Space Ambient Occlusion

Screen Space Ambient Occlusion

Generate ambient occlusions to improve lighting details.

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Method #

Add a screen space ambient occlusion (SSAO) node to the scene, this will produce subtle ambient occlusion shadows, to ground objects to surfaces and to add depth to geometry details.

Parameters

These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.

ParameterDetails
Position XMove along the local x-axis.
Position YMove along the local y-axis.
Position ZMove along the local z-axis.
Rotation HeadingRotate around the local y-axis.
Rotation PitchRotate around the local x-axis.
Rotation BankRotate around the local z-axis.
Scale XScale along the local x-axis.
Scale YScale along the local y-axis.
Scale ZScale along the local z-axis.

Toggle which transform channels should be inherited from the parent node. By default, all transforms will be inherited.

ParameterDetails
Position XToggle inheritance of the X Position from the parent.
Position YToggle inheritance of the Y Position from the parent.
Position ZToggle inheritance of the Z Position from the parent.
Rotation HeadingToggle inheritance of the Rotation Heading from the parent.
Rotation PitchToggle inheritance of the Rotation Pitch from the parent.
Rotation BankToggle inheritance of the Rotation Bank from the parent.
Scale XToggle inheritance of the X Scale from the parent.
Scale YToggle inheritance of the Y Scale from the parent.
Scale ZToggle inheritance of the Z Scale from the parent.
World Position OnlyInherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties.
Inherit TimeToggle inheritance of time from the parent.

These properties control the core behaviours of the node.

ParameterDetails
Blur SizeSize of the blur from the ambient occlusion.
Max Ray DistanceThe maximum distance between surfaces that SSAO will be visible.
Z BiasIncreasing Z bias will improve the accuracy of grounding objects to other surfaces
Blend AmountDecreasing blend amount will
Apply ModeHow the Ambient Occlusion is applied to the scene.
  • Lighting * Ambient : Multiply the ambient occlusion lighting values by the colour values of the scene.
  • Ambient Only : Multiply the ambient occlusion lighting values by the ambient occlusion in the scene.
  • Lighting Only : Multiply the ambient occlusion lighting values by the lighting of the scene.
SamplesThe number of samples to produce the SSAO.
Animate NoiseA simple noise animation on the SSAO

Inputs

NameDescriptionTypical Input
ObjectsAdd objects that are affected by the ambient occlusion.3D Object.