EEVEE - Specular Light Viewport Render Pass Behavior (AO and Screenspace Reflection - Over-Darkening Effect on Metallic Object) #87440

New Issue

Macc · 2021-04-12T19:59:37+02:00

Macc commented

2021-04-12 19:59:37 +02:00

System Information
Operating system: Windows-10
Graphics card: GeForce GTX 960M

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-04-10 16:36, hash: ed5507de8a
Worked: (newest version of Blender that worked as expected)

Short description of error
With Metallic objects, New Screenspace reflections and AO implementation (or another cause or bug is maybe the reason) creates over-darkening and unexpected results (when there is a metallic object) that can also be seen on Specular Light Pass from viewport passes as well as just by looking at a metallic object in combined pass

Exact steps for others to reproduce the error

Open attached file or:
Create a plane without adding or changing its material and scale by 5 and move -1 (down)
Edit the material of default cube and set metallic value to 1
Ensure viewport shading settings do not use scene world but use the forest HDRI and maximize world opacity and remove blur
Then in Render Pass set the Specular Light pass for example
Go to properties and first activate ambient occlusion - (it will make it everything over-dark)
then second activate screenspace reflections and - (it will make everything dark on specular light pass)
Also Go to combined pass of viewport- the metal cube will have strange dark shadows and darker reflections due when u use AO+SSR
!! Compare this with 2.92.0 and there specular light pass is working properly and metal cube doesnt have strange over-dark look etc. when AO and SSR is active
eevee_ssr_bug.blend

**System Information** Operating system: Windows-10 Graphics card: GeForce GTX 960M **Blender Version** Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-04-10 16:36, hash: `ed5507de8a` Worked: (newest version of Blender that worked as expected) **Short description of error** With Metallic objects, New Screenspace reflections and AO implementation (or another cause or bug is maybe the reason) creates over-darkening and unexpected results (when there is a metallic object) that can also be seen on Specular Light Pass from viewport passes as well as just by looking at a metallic object in combined pass |![2.93 Combined Viewport Render Pass - Metallic object - DARK Ambient Occlusion on Specular Surfaces.png](https://archive.blender.org/developer/F9930929/2.93_Combined_Viewport_Render_Pass_-_Metallic_object_-_DARK_Ambient_Occlusion_on_Specular_Surfaces.png)|![2.92 Combined Viewport Render Pass - Metallic object.png](https://archive.blender.org/developer/F9930928/2.92_Combined_Viewport_Render_Pass_-_Metallic_object.png) | -- | -- | |![2.93 Specular Light Pass - AO enabled.png](https://archive.blender.org/developer/F9930904/2.93_Specular_Light_Pass_-_AO_enabled.png)|![2.92 Specular Light Pass - AO enabled.png](https://archive.blender.org/developer/F9930903/2.92_Specular_Light_Pass_-_AO_enabled.png) |![2.93 Specular Light Pass - AO and SSR enabled.png](https://archive.blender.org/developer/F9930911/2.93_Specular_Light_Pass_-_AO_and_SSR_enabled.png)|![2.92 Specular Light Pass - AO and SSR enabled.png](https://archive.blender.org/developer/F9930910/2.92_Specular_Light_Pass_-_AO_and_SSR_enabled.png) **Exact steps for others to reproduce the error** - Open attached file or: - Create a plane without adding or changing its material and scale by 5 and move -1 (down) - Edit the material of default cube and set metallic value to 1 - Ensure viewport shading settings do not use scene world but use the forest HDRI and maximize world opacity and remove blur - Then in Render Pass set the Specular Light pass for example - Go to properties and first activate ambient occlusion - (it will make it everything over-dark) - then second activate screenspace reflections and - (it will make everything dark on specular light pass) - Also Go to combined pass of viewport- the metal cube will have strange dark shadows and darker reflections due when u use AO+SSR !! Compare this with 2.92.0 and there specular light pass is working properly and metal cube doesnt have strange over-dark look etc. when AO and SSR is active [eevee_ssr_bug.blend](https://archive.blender.org/developer/F9935142/eevee_ssr_bug.blend)

Macc commented

2021-04-12 19:59:37 +02:00

Added subscriber: @MCAN

blender-admin commented

2021-04-12 19:59:37 +02:00

#86036 was marked as duplicate of this issue

Macc changed title from ~~EEVEE - Specular Pass (AO and Screenspace Reflection - Darkening Effect on Metallic Object)~~ to EEVEE - Specular Light Viewport Pass (AO and Screenspace Reflection - Darkening Effect on Metallic Object)

2021-04-12 20:04:30 +02:00

Macc changed title from ~~EEVEE - Specular Light Viewport Pass (AO and Screenspace Reflection - Darkening Effect on Metallic Object)~~ to EEVEE - Specular Light Viewport Render Pass (AO and Screenspace Reflection - Darkening Effect on Metallic Object)

2021-04-12 20:04:49 +02:00

Macc changed title from ~~EEVEE - Specular Light Viewport Render Pass (AO and Screenspace Reflection - Darkening Effect on Metallic Object)~~ to EEVEE - Specular Light Viewport Render Pass Behavior (AO and Screenspace Reflection - Over-Darkening Effect on Metallic Object)

2021-04-12 20:27:53 +02:00

Germano Cavalcante commented

2021-04-15 21:59:09 +02:00

Added subscriber: @mano-wii