Eevee won't render my Particles

drpeppercan · March 27, 2019, 12:57pm

I initially started this animation in 2.79b.
I am able to see the particles animating in 2.80. And they do render with Cycles.
There are other objects in the scene that do render with Eevee.
I’m using a simple 4 sided object with plain white on it, not UVed, no texture.
With HDRI illumination.

What could it be?

yogyog · March 27, 2019, 3:43pm

Maybe - you know - attach a screenshot showing as much relevant information as you can.

drpeppercan · March 27, 2019, 4:19pm

Thanks for asking.
I’m illuminating the scene with an HDRI file mapped to an Empty sphere that surrounds where some future objects will be. It’s a trick from Dorian Z, this allows me to animate the rotation of the light.

NoParticls_Eevee_HDR.zip (4.8 MB)

The following are cropped renders:
Eevee
noparticles_eevee

Workbench
noparticles_workbench

Cycles
particles_cycles

YAFU · March 27, 2019, 5:04pm

Here your file works on a 2.8 build dated in 2019-03-06
This does not work in recent builds.
I’m not sure what has changed.
Edit:
By the way, 2019-03-06 is the last official build that I have for testing previous to more recent builds. This does not mean that 2019-03-06 build is the last version in which the file works.

drpeppercan · March 27, 2019, 5:17pm

Thanks YAFU
That’s great to know.
I’ll try to get that release

YAFU · March 27, 2019, 5:22pm

Maybe you should report the problem by sharing that same file whit devs. I do not know if it could be a problem because you started the work in 2.79, some new change in 2.8, or a bug.
The developers will tell us if it is our mistake or it is a bug.

YAFU · March 27, 2019, 7:38pm

I found the problem. If Emitter is configured as Wire for Viewport Display in Object tab, particles are not rendered. Please, report the problem with a simplified file like this:
Eevee_emitter as wire problem.blend (610.3 KB)

drpeppercan · March 28, 2019, 2:48pm

Nice job YAFU!
I also noticed that at developer.blender.org site the existence of these Bug reports:

I’ll try to report my issue now

drpeppercan · March 28, 2019, 2:50pm

What are your system specs?

YAFU · March 28, 2019, 3:08pm

I think those reports are different problems, I guess.
Linux, GTX 960.

drpeppercan · March 28, 2019, 3:18pm

I will post the Bug report link here soon.
Should I include the distro you’re using, or just Linux will do?

And do you have the Hash number of your Blender? (from the Splash page)

YAFU · March 28, 2019, 3:26pm

Just report your system information. I will be following your report in case developers can not reproduce the problem.
From new 2.8 builds, from “Help” menu > “Report a Bug”, this will automatically collect information from your system, so when you login from the link that was opened, you will automatically have that data added to the report.

You do not worry too much and just make a simple report sharing those .blend files.

EDIT:
If you already reported, no problem. Otherwise, you could add your problem to this entry:
https://developer.blender.org/T62548

drpeppercan · March 28, 2019, 3:46pm

New Bug report: https://developer.blender.org/T63056

Thanks YAFU

YAFU · March 28, 2019, 3:48pm

Ok, thanks. Now you add a comment in your entry mentioning that the problem could be related to these other reports:
https://developer.blender.org/T62548

drpeppercan · March 28, 2019, 3:51pm

Done!

YAFU · April 4, 2019, 8:23pm

It is currently fixed:
https://developer.blender.org/rB01d0903f1e93bfa0933adfd1d55fb669948e013f

This should be in this night buildbot builds.

drpeppercan · April 4, 2019, 11:37pm

Nice!
That was fast!

Looking forward to see it