Particle display problem in rendering when using the Time remapping option #69496

New Issue

orou · 2019-09-04T16:43:30+02:00

orou commented

2019-09-04 16:43:30 +02:00

System Information
Operating system: Mac Os Mojave 10.14.6 (18G95) and Windows 10 (Last update)
Graphics card: AMD Radeon R9 M295X 4 Go & Nvidia GTX 1070

Blender Version
Blender 2.80

Short description of error
There is a problem of particle rendering if we use the Time remapping function which makes it possible to make a film slower by multiplying the number of images of an animation. The particle animation is not continuous, some disappear and then reappear creating a jerky effect.
The problem does not appear when launching the animation directly in the software but only by doing a rendering calculation whether it is in film or frame-by-frame mode or movie (with Cycle or Eevee rendering)

Exact steps for others to reproduce the error
If I leave the time remapping by default (old 100, new 100) there is no problem.torus particules.blend
If I change the time remapping to have a movie with 4 times more image (old 25, new 100), the problem appears: the particle animation is not continuous, some disappear and then reappear creating a jerky effect.

**System Information** Operating system: Mac Os Mojave 10.14.6 (18G95) and Windows 10 (Last update) Graphics card: AMD Radeon R9 M295X 4 Go & Nvidia GTX 1070 **Blender Version** Blender 2.80 **Short description of error** There is a problem of particle rendering if we use the Time remapping function which makes it possible to make a film slower by multiplying the number of images of an animation. The particle animation is not continuous, some disappear and then reappear creating a jerky effect. The problem does not appear when launching the animation directly in the software but only by doing a rendering calculation whether it is in film or frame-by-frame mode or movie (with Cycle or Eevee rendering) **Exact steps for others to reproduce the error** If I leave the time remapping by default (old 100, new 100) there is no problem.[torus particules.blend](https://archive.blender.org/developer/F7716435/torus_particules.blend) If I change the time remapping to have a movie with 4 times more image (old 25, new 100), the problem appears: the particle animation is not continuous, some disappear and then reappear creating a jerky effect.

orou commented

2019-09-04 16:43:30 +02:00

Added subscriber: @orou

Richard Antalik commented

2020-01-09 21:51:05 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-01-09 21:51:05 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Richard Antalik commented

2020-01-09 21:51:05 +01:00

Can not reproduce this.
@orou Is this still an issue with latest build? https://builder.blender.org/download/

Can not reproduce this. @orou Is this still an issue with latest build? https://builder.blender.org/download/

orou commented

2020-01-10 09:49:35 +01:00

No issue with this alpha version, but I see exactly the problem during the render : Particles disappears every 4 frames.
I don't know if it this will help you to resolve the problem ?

No issue with this alpha version, but I see exactly the problem during the render : Particles disappears every 4 frames. I don't know if it this will help you to resolve the problem ?

Richard Antalik commented

2020-01-10 17:02:04 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'

Richard Antalik commented

2020-01-10 17:02:04 +01:00

I can confirm glitch every 4 frames when file is rendered.

Anatoly commented

2021-09-26 11:46:53 +02:00

Added subscriber: @immozzer-3

Anatoly commented

2021-09-26 11:46:53 +02:00

I agree. The problem still exists. And it is a pity that it has not been fixed yet. The time management tool is very necessary. The Blender command/ Please help us. Time dilation is the most popular effect.2021-09-26 12-44-47.mp4

I agree. The problem still exists. And it is a pity that it has not been fixed yet. The time management tool is very necessary. The Blender command/ Please help us. Time dilation is the most popular effect.[2021-09-26 12-44-47.mp4](https://archive.blender.org/developer/F10606099/2021-09-26_12-44-47.mp4)

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Particle display problem in rendering when using the Time remapping option #69496