Cycles smoke is not exported to render without baking #59467

New Issue

tobbew · 2018-12-16T18:52:44+01:00

tobbew commented

2018-12-16 18:52:44 +01:00

System Information
Operating system: win 10
Graphics card: geforce 1080 ti

Blender Version
Broken: blender-2.80-4488056f3d9-win64
Worked: (optional)

Short description of error
Smoke is visible in viewport but not in render.

Exact steps for others to reproduce the error

Select default cube.
Run quicksmoke
Select the domain and in the simulation cache settings choose Replay(step added to be reproducible in mantaflow)
Run play so you get some smoke.
Press f12 (or switch to cycles and press f12).
Renders cube but no smoke.

Manually setting it up gives the same result.

**System Information** Operating system: win 10 Graphics card: geforce 1080 ti **Blender Version** Broken: blender-2.80-4488056f3d9-win64\ Worked: (optional) **Short description of error** Smoke is visible in viewport but not in render. **Exact steps for others to reproduce the error** - Select default cube. - Run quicksmoke - Select the domain and in the simulation cache settings choose `Replay`(step added to be reproducible in mantaflow) - Run play so you get some smoke. - Press f12 (or switch to cycles and press f12). - Renders cube but no smoke. Manually setting it up gives the same result.

tobbew commented

2018-12-16 18:52:44 +01:00

Added subscriber: @tobbew

blender-admin commented

2018-12-16 18:52:44 +01:00

#67581 was marked as duplicate of this issue

blender-admin commented

2018-12-16 18:52:44 +01:00

#67121 was marked as duplicate of this issue

blender-admin commented

2018-12-16 18:52:44 +01:00

#66792 was marked as duplicate of this issue

Philipp Oeser commented

2018-12-17 11:22:14 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2018-12-17 11:22:14 +01:00

Can confirm cycles needs cache baking prior to rendering atm. (this wasnt the case previously?)

Eevee will render the volumes though (just needs Volumetric to be enabled in the Render tab)

Can confirm cycles needs cache baking prior to rendering atm. (this wasnt the case previously?) Eevee will render the volumes though (just needs `Volumetric` to be enabled in the Render tab)

Philipp Oeser changed title from ~~Smoke is not exported to render~~ to Cycles smoke is not exported to render without baking

2018-12-17 11:23:41 +01:00

tobbew commented

2018-12-19 21:46:36 +01:00

It was not like that before 2.8, if you had just played through the timeline so it had a smoke frame in memory it would render what was currently in memory (ie current frame if you had played the scene from the simulation start to where you are, or the last simulated scene if you stopped your playback and clicked around the timeline - until you clicked the simulation start frame where it would become empty again).

K Wolf commented

2019-01-08 08:40:04 +01:00

Added subscriber: @KillerWolf

K Wolf commented

2019-01-08 08:40:05 +01:00

i seem to be having the same issue w/ a fire scene in an animation, i have built it from scratch, not using Quick Smoke. i've run the animation, the Viewport looks pretty different to the version in 2.79, when i F12 i get no fire, and it one scene it appeared that the domain was blocking some of the normal render effects.

Brecht Van Lommel commented

2019-07-14 13:50:48 +02:00

Added subscriber: @MrJoMo

Brecht Van Lommel commented

2019-07-17 14:23:46 +02:00

Added subscribers: @A.Lex_3D, @brecht

Germano Cavalcante commented

2019-07-24 19:38:08 +02:00

Added subscriber: @Ash_The_Robot

Mike commented

2019-12-02 07:20:11 +01:00

Added subscriber: @MMMM

Mike commented

2019-12-02 07:20:11 +01:00

Funny thing, I had this working... accidentally deleted my box and couldn't get it to work again for a while.

You probably won't believe what I did to get it to work:
Select the Smoke Domain box, while in object mode, CTRL-A, all transforms. Renders in Cycles now. (still doesn't in Eevee, but I'm not using Eevee, so I'm not gonna mess with it.)
No baking required.

Note:
Blender 2.81
Using default "quick smoke" and only altering the prepopulated density setting to 250 to create "steam".
Not density under the object's smoke property, NOR the density under the smoke domain's smoke property, the density under the smoke domain's material settings is the one I changed

Funny thing, I had this working... accidentally deleted my box and couldn't get it to work again for a while. You probably won't believe what I did to get it to work: Select the Smoke Domain box, while in object mode, CTRL-A, all transforms. Renders in Cycles now. (still doesn't in Eevee, but I'm not using Eevee, so I'm not gonna mess with it.) No baking required. Note: Blender 2.81 Using default "quick smoke" and only altering the prepopulated density setting to 250 to create "steam". Not density under the object's smoke property, NOR the density under the smoke domain's smoke property, the density under the smoke domain's material settings is the one I changed ![Donut11.png](https://archive.blender.org/developer/F8184504/Donut11.png)

Germano Cavalcante commented

2020-01-20 13:35:09 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2020-01-20 13:35:09 +01:00

I can confirm with the current simulation system (Mataflow) and corresponding cache system without bake (Replay in cache settings).
The worst thing is that with this type of cache you don't have an option to bake, so you won't be able to render.

I can confirm with the current simulation system (Mataflow) and corresponding cache system without bake (`Replay` in cache settings). The worst thing is that with this type of cache you don't have an option to bake, so you won't be able to render.

Brecht Van Lommel commented

2020-01-20 14:30:24 +01:00

I'm not sure what you mean by having no option to bake, baking and rendering smoke simulations with mantaflow seems to work?

Germano Cavalcante commented

2020-01-20 15:03:42 +01:00

In #59467#853817, @brecht wrote:
I'm not sure what you mean by having no option to bake, baking and rendering smoke simulations with mantaflow seems to work?

I refer to the cache as "Replay".

> In #59467#853817, @brecht wrote: > I'm not sure what you mean by having no option to bake, baking and rendering smoke simulations with mantaflow seems to work? I refer to the cache as `"Replay"`. ![GIF.gif](https://archive.blender.org/developer/F8289715/GIF.gif)

Philipp Oeser removed the

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Cycles smoke is not exported to render without baking #59467