EEVEE SSR Refraction Depth regression
Closed, ResolvedPublic
Actions

Description

System Information
Linux Mint 20.1 Cinnamon 64-bit
3400G (iGPU)

Blender Version
Broken: 2.93.0 Alpha, d25ab68cf4b2, and 53b82efed66b
Worked: 2.92.0 Release, and 2.93.0 Alpha e4a55b46c406

Short description of error
Refraction Depth > 0 no longer seems possible, unless using high levels of roughness.
Refraction Depth = 0 still provides an almost identical result.

In case helpful, regression seems to have appeared in the last few days (recent EEVEE refactoring?).

Exact steps for others to reproduce the error
Open the following .blend file in both 2.92.0 Release and recent 2.93.0 Alpha and compare results.

EEVEE SSR Refraction Depth regression.blend108 KBDownload

2.92.0

2.93.0

Forgot to say...
Thank you @Clément Foucault (fclem), Your coding skills are greatly admired and appreciated.

Revisions and Commits

rB Blender
	rBb1150fa1f5a5 Fix T86448 EEVEE: SSRefraction Depth regression
	rB4cd9a1164b5a EEVEE: ScreenSpaceReflections: Improve minimal hit threshold

Related Objects

Mentioned Here: rB1f8d27a191c9: Cleanup: EEVEE: Replace `brightness()` by `max_v3()`
rBbe51d671b500: Fix T86121: Cycles Attribute returning wrong results with OSL
rBde06cb85593b: Bugfix: properly rename Null audio device to None
rBe4a55b46c406: UI: Remove extra blank space for decorators in FCurve modifiers
rBd25ab68cf4b2: Cleanup: Complete earlier geometry component refactor
rB53b82efed66b: Fix (unreported) geometry node attribute search not working in the

Event Timeline

David Black (david_black) created this task.Mar 10 2021, 3:45 AM

David Black (david_black) updated the task description. (Show Details)Mar 10 2021, 3:53 AM

David Black (david_black) updated the task description. (Show Details)

David Black (david_black) added a subscriber: Clément Foucault (fclem).

David Black (david_black) updated the task description. (Show Details)Mar 10 2021, 3:56 AM

David Black (david_black) updated the task description. (Show Details)Mar 10 2021, 4:11 AM

I get something if I come closer

But starts to vanishes from further away

@Clément Foucault (fclem): this cant be right, right?

**System Information**
Operating system: Linux-5.10.19-200.fc33.x86_64-x86_64-with-glibc2.32 64 Bits
Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 455.45.01
version: 2.93.0 Alpha, branch: master, commit date: 2021-03-10 04:47, hash: `rB70e73974b593`

emilian huminiuc (emilian) added a subscriber: emilian huminiuc (emilian).Mar 10 2021, 12:57 PM

Clément Foucault (fclem) closed this task as Resolved by committing rB4cd9a1164b5a: EEVEE: ScreenSpaceReflections: Improve minimal hit threshold.Mar 10 2021, 5:57 PM

Clément Foucault (fclem) claimed this task.

Clément Foucault (fclem) added a commit: rB4cd9a1164b5a: EEVEE: ScreenSpaceReflections: Improve minimal hit threshold.

David Black (david_black) updated the task description. (Show Details)Mar 17 2021, 2:53 AM

David Black (david_black) updated the task description. (Show Details)

2021-03-17 update:
Was fixed in 2.93 Alpha 1f8d27a191c9, regressed again in be51d671b500, and de06cb85593b

Try either the above .blend or the following...

EEVEE SSR Refraction Depth regression test 2.blend111 KBDownload

As per @Philipp Oeser (lichtwerk) findings (thank you for your tests and feedback!), try zooming in and out using the mouse wheel. Changing camera focal length (FL) also highlights the issue.

Camera FL 25mm