EEVEE: Shadow Pass Visible on Backsided geometry #74110

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opened 2020-02-22 12:06:35 +01:00 by Jeroen Bakker · 5 comments

Jeroen Bakker commented

2020-02-22 12:06:35 +01:00

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EEVEE_shadow_pass.blend

Due to the screen space shadow pass the shadow is visible on back faced geometry. Perhaps we should occlude back faces. This means that we need the normal buffer during the shadow pass.

There are two ways how to do it:

Re-use the EFFECT_NORMAL buffer
Extract the normal from the depth buffer.

The normal buffer only contains the normals from the center pixel so might generate shadow-bleeding. The extraction from the depth buffer is less accurate, but accurate enough to do the job.

[EEVEE_shadow_pass.blend](https://archive.blender.org/developer/F8362655/EEVEE_shadow_pass.blend) Due to the screen space shadow pass the shadow is visible on back faced geometry. Perhaps we should occlude back faces. This means that we need the normal buffer during the shadow pass. There are two ways how to do it: * Re-use the EFFECT_NORMAL buffer * Extract the normal from the depth buffer. The normal buffer only contains the normals from the center pixel so might generate shadow-bleeding. The extraction from the depth buffer is less accurate, but accurate enough to do the job.

Jeroen Bakker self-assigned this 2020-02-22 12:06:35 +01:00

Jeroen Bakker commented

2020-02-22 12:06:35 +01:00

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Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'

Jeroen Bakker commented

2020-02-22 12:06:35 +01:00

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Added subscriber: @Jeroen-Bakker

Added subscriber: @Jeroen-Bakker

blender-admin commented

2020-02-24 10:46:45 +01:00

This issue was referenced by 403bb357ae

This issue was referenced by 403bb357ae2b1d2561a0d77c96035ba54c197cbd

Jeroen Bakker commented

2020-02-27 15:58:33 +01:00

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Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'

Jeroen Bakker closed this issue

2020-02-27 15:58:33 +01:00

blender-admin commented

2020-03-03 12:34:36 +01:00

This issue was referenced by 40343a76c5

This issue was referenced by 40343a76c56f924b2e38ad87940ca2a74dcc1bd3

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Reference: blender/blender#74110

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