Differential D4205 Diff 13203 manual/render/eevee/lightprobes/reflection_planes.rst

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manual/render/eevee/lightprobes/reflection_planes.rst

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	Reflection Planes	Reflection Planes
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	These special types of Probe object is suited to smooth planar surfaces.	These special types of Probe object are suited to smooth planar surfaces.
	They basically capture the whole scene with a flipped camera.	They basically capture the whole scene with a flipped camera.

	Using reflection planes is really heavy on the render time	Using reflection planes is really heavy on render time
	because the scene needs to be rendered as many times as there is Reflection Planes in the view.	because the scene needs to be rendered as many times as there is Reflection Planes in the view.

	Unless Screen Space Reflection is enabled,	Unless Screen Space Reflection is enabled Reflection Planes
	Reflection Planes only work on specular surfaces that have there roughness around 0.	only work on specular surfaces that have roughness near 0.

	If Screen Space Reflection is enabled, Reflection Planes will serves as support buffers.	If Screen Space Reflection is enabled, Reflection Planes will serves as support buffers.
	This accelerate the tracing process and complete the missing data from the view space.	They accelerate the tracing process and complete the missing data from the view space.
	This also make reflection more correct for the affected surface that have medium roughness and	They also make reflection more correct for affected surfaces that have medium roughness and
	disturbed normals (i.e. normal maps).	disturbed normals (i.e. normal maps).

	.. note::	.. note::

	Subsurface Scattering, Screen Space Reflections and	Subsurface Scattering, Screen Space Reflections and
	Volumetrics are not supported inside Reflection Plane's reflection.	Volumetrics are not supported inside a Reflection Plane's reflection.


	Placement	Placement
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	=========	=========

	If Backface Culling is not enabled, snapping the Reflection Plane to the planar surface	If Backface Culling is not enabled, snapping the Reflection Plane to the planar surface
	will effectively capture the underneath of the surface.	will effectively capture the underside of the surface.

	Manually moving the Reflection Plane above the surface enough for it to not appear in the capture.	You can manually move the Reflection Plane above the surface enough for it to not appear in the capture.
	Alternatively you can put the floor object inside a collection and	Alternatively you can put a floor object inside a collection and
	use this collection as Visibility Collection (inverted) inside the Reflection Plane's probe settings.	use this collection as a Visibility Collection (inverted) inside the Reflection Plane's probe settings.

	.. admonition:: Reference	.. admonition:: Reference
	:class: refbox	:class: refbox
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	Distance	Distance
	A probe object only influences the lighting of nearby surfaces.	A probe object only influences the lighting of nearby surfaces.
	This influence zone is defined by the Distance parameter and object scaling.	This influence zone is defined by the Distance parameter and object scaling.
	It is a bit different, depending on the probe type.	The influence distance varies is a bit, depending on the probe type.
		fclemUnsubmitted Not Done Inline Actions Same here fclem: Same here

	For Reflection Planes the influence distance is the distance from the plane.	For Reflection Planes the influence distance is the distance from the plane.
	Only surfaces whose normals are aligned with the Reflection Plane will receive the captured reflection.	Only surfaces whose normals are aligned with the Reflection Plane will receive the captured reflection.
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	Also defines how much shading normals needs to be aligned with the plane to receive reflections.	Also defines how much shading normals needs to be aligned with the plane to receive reflections.

	Clipping Offset	Clipping Offset
	Define how much below the plane the near clip is when capturing the scene. Increasing this can fix reflection contact problems.	Defines how much below the plane the near clip is when capturing the scene. Increasing this can fix reflection contact problems.

	Visibility Collection	Visibility Collection
	Sometimes, it is useful to limit which objects appear in the light probe's captured lighting.	Sometimes, it is useful to limit which objects appear in the light probe's captured lighting.
	For instance, an object that is too close to a capture point might be better excluded.	For instance, an object that is too close to a capture point might be better excluded.
	This is what the visibility collection does.	This is what the visibility collection does.
	Only objects that are in this collection will be visible when this probes will capture the scene.	Only objects that are in this collection will be visible when these probes capture the scene.

	There is also an option to invert this behavior and effectively hide the objects inside this collection.	There is also an option to invert this behavior and effectively hide the objects inside this collection.

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	.. note::	.. note::

	This is only a filtering option.	This is only a filtering option.
	This means that if an object is not visible at render time it won't be visible in during the probe render.	That means that if an object is not visible at render time it won't be visible during the probe render.


	Viewport Display	Viewport Display
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