EEVEE fireflies along faces #86752

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opened 2 years ago by MadRabidz · 11 comments

****System Information
Operating system: Windows 10 Home
Graphics card: RTX 3070 Laptop

Blender Version
Broken: 2.93.0 Alpha 9b806c49d0 master
Worked: 2.92

Short description of error
EEVEE creates white fireflies along faces that are parallel to the camera.

Exact steps for others to reproduce the error
Enter a scene with a cube or flat object, adjust the camera so it looks almost parallel or very low angle along the flat face and EEVEE will produce white fireflies along the face. Enabling depth of field and bloom makes the bug easier to see, but is not the cause of it. Test on GTX 1060 Desktop does not reproduce the bug.
162378376_343569327078045_1991811210885299867_n.png
Firefly Bug.blend

******System Information** Operating system: Windows 10 Home Graphics card: RTX 3070 Laptop **Blender Version** Broken: 2.93.0 Alpha 9b806c49d08a master Worked: 2.92 **Short description of error** EEVEE creates white fireflies along faces that are parallel to the camera. **Exact steps for others to reproduce the error** Enter a scene with a cube or flat object, adjust the camera so it looks almost parallel or very low angle along the flat face and EEVEE will produce white fireflies along the face. Enabling depth of field and bloom makes the bug easier to see, but is not the cause of it. Test on GTX 1060 Desktop does not reproduce the bug. ![162378376_343569327078045_1991811210885299867_n.png](https://archive.blender.org/developer/F9900270/162378376_343569327078045_1991811210885299867_n.png) [Firefly Bug.blend](https://archive.blender.org/developer/F9900272/Firefly_Bug.blend)
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Added subscriber: @MadRabidz

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joaulo commented 2 years ago

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In animation this effect will appear only in some frames. Changing render resolution % get's rid of it Fireflies.blend.

In animation this effect will appear only in some frames. Changing render resolution % get's rid of it [Fireflies.blend](https://archive.blender.org/developer/F9914420/Fireflies.blend).

Added subscriber: @MLSpence

Added subscriber: @MLSpence

Added subscriber: @AndresStephens

Added subscriber: @AndresStephens

Can confirm, this is due to the new Fresnel is BSDF pbr materials. The optimized fresnel from 2.92 didin't have this, but they changed the code and instroduced this with 2.93.

This task should be a high priority.

Overlay1.png
2.92

Overlay2.png
2.93

Can confirm, this is due to the new Fresnel is BSDF pbr materials. The optimized fresnel from 2.92 didin't have this, but they changed the code and instroduced this with 2.93. This task should be a high priority. ![Overlay1.png](https://archive.blender.org/developer/F9917306/Overlay1.png) 2.92 ![Overlay2.png](https://archive.blender.org/developer/F9917305/Overlay2.png) 2.93
Relevant tasks: [https:*developer.blender.org/T86795 ](https:*developer.blender.org/T86795) [https:*developer.blender.org/T86578 ](https:*developer.blender.org/T86578)
Owner

Closed as duplicate of #86578

Closed as duplicate of #86578
dfelinto closed this issue 2 years ago
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Module › Animation & Rigging
Module › Core
Module › Development Management
Module › Eevee & Viewport
Module › Grease Pencil
Module › Modeling
Module › Nodes & Physics
Module › Pipeline, Assets & IO
Module › Platforms, Builds, Tests & Devices
Module › Python API
Module › Render & Cycles
Module › Sculpt, Paint & Texture
Module › Triaging
Module › User Interface
Module › VFX & Video
Platform/FreeBSD
Platform/Linux
Platform/macOS
Platform/Windows
Priority › High
Priority › Low
Priority › Normal
Priority › Unbreak Now!
Status › Archived
Status › Confirmed
Status › Duplicate
Status › Needs Information from Developers
Status › Needs Information from User
Status › Needs Triage
Status › Resolved
Type › Bug
Type › Design
Type › Known Issue
Type › Patch
Type › Report
Type › To Do
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Reference: blender/blender#86752
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