Use uniform_copy

@Clément Foucault (fclem): mind having a second look at this patch :-) I just fixed a related issue T70868 :-)

Velocity debugging

Perfect!

Added the changes @Sebastián Barschkis (sebbas) proposed.

Yes, just noticed that the matrix needed more changes to work correct.

Cause is inside the volume_velocity_vert.glsl here it is assumed that the velocity texture has to be drawn around the center of the object.

I can take a look at this one. Is more in my alley than the fragment shader

I can confirm.
As seen in the image attached by @Jacques Lucke (JacquesLucke), the needles indicating speed are partially out of the domain.

Jupp - Looks the same.
if you now center the origin, ist gone.

Don't know if this is the same issue, but I can confirm the issue described here.

Same as before. I just added a translation to the voxel indicator so that it stays inside the domain when resizes occur.

Please adjust your attitude. The report was set to Confirmed status. He just said he's checking the issue.

Some excuses. In 2.79 it was a normal hide. Can you complete the task normally? It's 2019 year, and you say that it’s normally done, that's funny

There you go-

The comparison of the mesh / particle looks very interesting. Can you send me that file?

Bake all in general doesnt do anything. It my last test, also cloth or other items wont start baking when using "Bake all". I haven tested 2.81 or latest build though.

Confirmed, checking...

FYI, the skipping of hair particles with Bake All Dynamics was introduced in rB66918b3add4d.
On first sight, I dont see a particular reason to skip [tested non-skipping which seems to work], but this is ancient, so I guess this has never been considered a bug...

Well, I didn't know that the pre-roll feature was removed as I'm a beginner. So, I think it's better to show a warning message when someone tries to bake while entering a negative value. For me, the best thing is to make this feature work again. I know there might be programming limitations but the more features the software has, the better it will be.

This is tied to the simulation having a negative start frame.

Hello & thanks! (Sebbas) Downloaded the latest build last night from blender.org, much better!

The trails in the "with subframes" example seem to produce a "staircase" effect. Will investigate this further.

I think this issue resolved itseld with 0d31127d6ca2. Before that commit, some names were still old ("smoke" instead of "manta") and no additional modifiers could be added. So your bug was probably related to this.

Good catch, I was able to reproduce the issue. It seems there was an issue with the dependency graph. I made the particle emitter use the same setup as the mesh emitter and now I am able to generate decent smoke trails.

Hi Gottfried!

I think this could be a great feature for animation, too, if you have a part of a rig that depends on a simulation. The cloth in a character's clothing could simulate while the animator is moving things, and stop when there's no transform going on. This would only give an idea of what the position of the cloth will be when baked, but it would be useful since you'd catch a lot of mistakes before a lengthy baking process.

FYI: I made a couple of different sims yesterday- and neither did the above, so it's not happening every time.

Note: removed the BF Blender tag, as this is not yet in official 'master' branch (still pending review).