Differential D4205 Diff 13203 manual/render/eevee/screen_space_effects/subsurface_scattering.rst

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manual/render/eevee/screen_space_effects/subsurface_scattering.rst

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	Subsurface Scattering	Subsurface Scattering
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	This effect mimic real subsurface scattering by blurring the diffuse lighting in screen space.	This effect mimics real subsurface scattering by blurring the diffuse lighting in screen space.

	.. admonition:: Reference	.. admonition:: Reference
	:class: refbox	:class: refbox
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	Number of samples to compute the scattering effect.	Number of samples to compute the scattering effect.

	Jitter Threshold	Jitter Threshold
	For the effect to be efficient, samples needs to be coherent and not random.	For the effect to be efficient, samples need to be coherent and not random.
	This can lead to cross shaped pattern when the scattering radius is high.	This can lead to a cross shaped pattern when the scattering radius is high.
	Increasing the Jitter Threshold will rotate the samples below	Increasing the Jitter Threshold will rotate the samples below this radius percentage
	this radius percentage in a random pattern in order to hide the visible pattern.	in a random pattern in order to hide the visible pattern.
	This affects performance if the scattering radius is large.	This affects performance if the scattering radius is large.

	Separate Albedo	Separate Albedo
	Output the albedo of a BSSRDF in a separate buffer in order to not blur it.	Output the albedo of a BSSRDF in a separate buffer in order to not blur it.
	The Texture Blur parameter require this option to be enable to work correctly.	The Texture Blur parameter requires this option to be enabled to work correctly.
	This option increases the video memory usage but does not have a big impact on performance.	This option increases video memory usage but does not have a big impact on performance.


	Subsurface Translucency	Subsurface Translucency
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	The Subsurface Translucency option needs to be enabled in order to make the light go through an object	The Subsurface Translucency option needs to be enabled in order to make the light go through an object
	(like simulating a human ear lit from behind).	(such as simulating a human ear lit from behind).

	- This option does only work if Subsurface Scattering is enabled.	- This option only works if Subsurface Scattering is enabled.
	- This option only works with shadowed light and does not work with indirect lighting.	- This option only works with shadowed lighting and does not work with indirect lighting.
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