Eevee DoF issue with particle #82751

New Issue

mike · 2020-11-16T04:21:02+01:00

mike commented

2020-11-16 04:21:02 +01:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30

Blender Version
Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-09 22:42, hash: b5d310b569
Also tried in latest 2.91

Short description of error
DoF seem to fail when a particle object moves in front of a background object.
The out of focus particle seems to appear in focus when it passes by an focused object?
Not sure if limitation of eevee but cycles renders fine.

Tried playing with blend modes on the particle and objects but not much changed.dof eevee.blend

Exact steps for others to reproduce the error
Attched blend file..
Press play and watch particles move in front of cubes.

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30 **Blender Version** Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-09 22:42, hash: `b5d310b569` Also tried in latest 2.91 **Short description of error** DoF seem to fail when a particle object moves in front of a background object. The out of focus particle seems to appear in focus when it passes by an focused object? Not sure if limitation of eevee but cycles renders fine. Tried playing with blend modes on the particle and objects but not much changed.[dof eevee.blend](https://archive.blender.org/developer/F9298131/dof_eevee.blend) **Exact steps for others to reproduce the error** Attched blend file.. Press play and watch particles move in front of cubes.

mike commented

2020-11-16 04:21:02 +01:00

Added subscriber: @kosblend

Robert Guetzkow commented

2020-11-16 14:30:58 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-11-16 14:30:58 +01:00

Are you referring to the sharper looking core of the particle?

Are you referring to the sharper looking core of the particle? ![eevee_particle_render.jpg](https://archive.blender.org/developer/F9302080/eevee_particle_render.jpg)

Germano Cavalcante commented

2020-11-16 14:42:37 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2020-11-16 14:42:38 +01:00

I am seeing a problem.
But I'm not sure if it's the same problem as described:

And I'm not sure if this is related to the particle system. The .blend file can probably be simplified.

I am seeing a problem. But I'm not sure if it's the same problem as described: ![image.png](https://archive.blender.org/developer/F9302248/image.png) And I'm not sure if this is related to the particle system. The .blend file can probably be simplified.

Firepal commented

2020-11-16 17:53:00 +01:00

Added subscriber: @Firepal

Firepal commented

2020-11-16 17:53:00 +01:00

dofshow.mp4

DoFparticles.blend
Reproduction of what mano and Robert have shown.
@kosblend If it's not this, then please clarify

[dofshow.mp4](https://archive.blender.org/developer/F9303326/dofshow.mp4) ![eed.png](https://archive.blender.org/developer/F9303476/eed.png) ![image.png](https://archive.blender.org/developer/F9303508/image.png) [DoFparticles.blend](https://archive.blender.org/developer/F9303511/DoFparticles.blend) Reproduction of what mano and Robert have shown. @kosblend If it's not this, then please clarify

mike commented

2020-11-17 01:06:04 +01:00

In #82751#1055604, @rjg wrote:
Are you referring to the sharper looking core of the particle?

Yes

> In #82751#1055604, @rjg wrote: > Are you referring to the sharper looking core of the particle? > > ![eevee_particle_render.jpg](https://archive.blender.org/developer/F9302080/eevee_particle_render.jpg) Yes

mike commented

2020-11-17 01:09:53 +01:00

In #82751#1055755, @Firepal wrote:
Reproduction of what mano and Robert have shown.
@kosblend If it's not this, then please clarify

Yes thanks for the clear demonstration.
Mano may have picked up another issue tho i never noticed.

> In #82751#1055755, @Firepal wrote: > Reproduction of what mano and Robert have shown. > @kosblend If it's not this, then please clarify Yes thanks for the clear demonstration. Mano may have picked up another issue tho i never noticed.

Firepal commented

2020-11-17 12:55:59 +01:00

In #82751#1055890, @kosblend wrote:
Yes thanks for the clear demonstration.
Mano may have picked up another issue tho i never noticed.

I didn't notice Mano had a whole other issue, weird.

In any case, the people working on EEVEE are aware of the artifacts present with its Depth of Field, and a refactor is planned for Some Time In The Future in #68468.

In #68468, Clément Foucault wrote:
The current depth of field implementation is really slow, [has artifacts and unpredictable performance].
The goal would be to implement something around the lines of UE4's Depth of Field.

So... Known Issue?

> In #82751#1055890, @kosblend wrote: > Yes thanks for the clear demonstration. > Mano may have picked up another issue tho i never noticed. I didn't notice Mano had a whole other issue, weird. In any case, the people working on EEVEE are aware of the artifacts present with its Depth of Field, and a refactor is planned for Some Time In The Future in #68468. > In #68468, Clément Foucault wrote: >The current depth of field implementation is really slow, [has artifacts and unpredictable performance]. >The goal would be to implement something around the lines of UE4's Depth of Field. So... Known Issue?

Robert Guetzkow commented

2020-11-17 13:00:40 +01:00

Closed as duplicate of #68468

Robert Guetzkow closed this issue

2020-11-17 13:00:40 +01:00

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Eevee DoF issue with particle #82751