EEVEE fireflies along faces #86752

New Issue

Martin Ivanov · 2021-03-20T01:54:33+01:00

Martin Ivanov commented

2021-03-20 01:54:33 +01:00

****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.

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)

Martin Ivanov commented

2021-03-20 01:54:33 +01:00

Added subscriber: @MadRabidz

Giampaolo commented

2021-03-22 12:01:44 +01:00

Added subscriber: @joaulo

piero commented

2021-03-22 12:32:59 +01:00

Added subscriber: @pietrodichito

Travis commented

2021-03-29 13:56:59 +02:00

Added subscriber: @TravisOBrien

Nerijus commented

2021-03-30 12:24:57 +02:00

Added subscriber: @PaganHead

Nerijus commented

2021-03-30 12:24:57 +02:00

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).

Spencer Singer commented

2021-03-30 18:03:06 +02:00

Added subscriber: @MLSpence

Andres Stephens commented

2021-04-02 01:35:05 +02:00

Added subscriber: @AndresStephens

Andres Stephens commented

2021-04-02 01:35:05 +02:00

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.

2.92

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

Andres Stephens commented

2021-04-02 01:46:35 +02:00

Relevant tasks:
https:*developer.blender.org/T86795
https:*developer.blender.org/T86578

Relevant tasks: [https:*developer.blender.org/T86795 ](https:*developer.blender.org/T86795) [https:*developer.blender.org/T86578 ](https:*developer.blender.org/T86578)

Dalai Felinto commented

2021-04-08 17:29:45 +02:00

Closed as duplicate of #86578

Dalai Felinto closed this issue

2021-04-08 17:29:45 +02:00

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EEVEE fireflies along faces #86752