Maniphest T76846

Cropping of Emitter (Face) By Hair In Render preview
Confirmed, NormalBUG
Actions

Assigned To
None
Authored By
Noah Gonzales (NoahGonzales)
May 18 2020, 4:35 AM
Tags
  • BF Blender
  • Render & Cycles
Subscribers
Gilberto Rodrigues (gilberto_rodrigues)
Noah Gonzales (NoahGonzales)
Richard Antalik (ISS)

Description

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.87

Blender Version
Broken: version: 2.90 (sub 2), branch: master, commit date: 2020-05-19 03:31, hash: rB1151bcd53d1d
Worked: Never

Short description of error
Everything goes back to working order when I press "Delete Edit" for the particles.
I've tried opening the file on two other computers. On one it works as I'd hope but on the other the same issue occurs.

Exact steps for others to reproduce the error
I haven't ran into this issue before now and I can't replicate it.

Head Hair Bug.blend13 MBDownload

Hope the solution to this is simple and easy. Thank you for constantly making Blender better and better.

Event Timeline

Noah Gonzales (NoahGonzales) created this task.May 18 2020, 4:35 AM
Gilberto Rodrigues (gilberto_rodrigues) added a subscriber: Gilberto Rodrigues (gilberto_rodrigues).EditedMay 18 2020, 5:13 AM

Can confirm it from 2.80 up to 2.83. Couldn't open it in 2.79b (crash).
I'm also on windows and with the same 445.87 driver.
It looks fine if you render it in Cycles or Eevee, but it's messed up in the viewport render preview with Cycles. Here's a more simplified version of that file:

Head_Hair_Bug.blend6 MBDownload
.
Note that in 2.83 this bug is partially fixed, the object shows correctly in the preview, only the hair doesn't preview correctly.
Exact steps to reproduce:
Open file,
Change the viewport mode to Render preview.

Alaska (Alaska) changed the task status from Needs Triage to Needs Information from User.May 18 2020, 5:55 AM
Alaska (Alaska) added a subscriber: Alaska (Alaska).

I'm unable to replicate this issue in Blender 2.82a on Linux with a GTX 1050ti driver 440.82 with both the original or simplified file.

@Noah Gonzales (NoahGonzales) are you able to test loading factory defaults by selecting from the top of Blender "File>Defaults>Load Factory Settings" then open your file with "File>Open" ?

Are you also able to copy your character to a new blender instance? This can be done by opening Blender then select from the top of Blender "File>Append" then find your .blend file with the character and open it. Inside will be a bunch of folders, go into the "Objects" folder and select everything (Press A) then select "Append" in the bottom right. Does the issue also occur in this new .blend?

Considering this bug is hard for you to reproduce from scratch and that I'm unable to reproduce it on my computer. It may not be something the developers can fix. Not entirely sure.

Noah Gonzales (NoahGonzales) added a comment.May 18 2020, 6:40 AM

@Alaska (Alaska) Unfortunately, after following all of your instructions the model and hair are still cropped.

Alaska (Alaska) changed the task status from Needs Information from User to Needs Triage.May 18 2020, 6:50 AM
In T76846#933568, @Noah Gonzales (NoahGonzales) wrote:

@Alaska (Alaska) Unfortunately, after following all of your instructions the model and hair are still cropped.

Thanks for trying. I will leave the handling of this issue up to the developers. I'm unable to shed much light on this as I'm unable to reproduce it and have never experienced it before.

Alaska (Alaska) removed a subscriber: Alaska (Alaska).May 18 2020, 6:50 AM
Richard Antalik (ISS) changed the task status from Needs Triage to Needs Information from User.May 18 2020, 5:27 PM
Richard Antalik (ISS) added a subscriber: Richard Antalik (ISS).

@Noah Gonzales (NoahGonzales) can you check if this works OK in beta or alpha versions? builder.blender.org/

I could reproduce in 2.82a, but not in 2.90

Gilberto Rodrigues (gilberto_rodrigues) added a comment.EditedMay 18 2020, 6:27 PM

2.9 behaves as like what I said about 2.83. The bug is partially fixed, the emiter shows correctly in the preview, but the hair doesn't.
See the preview vs the render in 2.9:

Noah Gonzales (NoahGonzales) added a comment.May 18 2020, 7:03 PM

2.9 has the same issues for 2.83 on my end. The only difference between me and @Gilberto Rodrigues (gilberto_rodrigues) 's results is my rendered image has the same cropping of the hair.

Richard Antalik (ISS) renamed this task from Cropping of Emitter (Face) By Hair In Render to Cropping of Emitter (Face) By Hair In Render preview.May 19 2020, 12:01 PM
Richard Antalik (ISS) changed the task status from Needs Information from User to Confirmed.
Richard Antalik (ISS) updated the task description.
Richard Antalik (ISS) added a project: Render & Cycles.
Bastien Montagne (mont29) changed the subtype of this task from "Report" to "Bug".Oct 14 2020, 2:29 PM