2.8 Metaballs update 'NEVER' is not working, seems to *always* update even with NEVER selected #68840

New Issue

todd doehring · 2019-08-19T20:58:27+02:00

todd doehring commented

2019-08-19 20:58:27 +02:00

System Information
Operating system: win 10
Graphics card: nvidia 1080

Blender Version
Broken: 2.80 (sub 74), branch: master, commit date: 2019-07-11 13:50, hash: 06312c6d2d
Worked: (optional)

Hi all,
I have a complex network of metaballs that I generate using my python script. I would like to (as I do in 2.79) set the UPDATE property to 'NEVER' while I'm generating them; vastly improving speed. This works in 2.79b:

bpy.ops.object.metaball_add(type = 'CAPSULE',rotation = (0,-pi/2,0))
medge = bpy.context.object
medge.data.update_method = 'NEVER'

BUT, it doesn't work in 2.8 or 2.81.

The metaballs seem to be 'stuck' on ALWAYS.
I tried just making a couple generic metaballs and setting to NEVER using the gui, but they still appear!!!

Am i missing something or is there a problem with the NEVER setting in 2.8 ?

Thanks for any suggestions or info. This is kind of mission critical.
Also, I would like to be able to generate 20k or even 100k metaballs. This was not possible in 2.79, but is it possible in 2.8??
If not, is there some way I can modify (improve?) the source to enable handling of tons of metaballs? I'd be happy to try/contribute although I"m not a cpp expert. I'd also like to make a triangle Mball primitive... that shouldn't be very hard?

**System Information** Operating system: win 10 Graphics card: nvidia 1080 **Blender Version** Broken: 2.80 (sub 74), branch: master, commit date: 2019-07-11 13:50, hash: 06312c6d2db8 Worked: (optional) Hi all, I have a complex network of metaballs that I generate using my python script. I would like to (as I do in 2.79) set the UPDATE property to 'NEVER' while I'm generating them; vastly improving speed. This works in 2.79b: ``` bpy.ops.object.metaball_add(type = 'CAPSULE',rotation = (0,-pi/2,0)) medge = bpy.context.object medge.data.update_method = 'NEVER' ``` BUT, it doesn't work in 2.8 or 2.81. The metaballs seem to be 'stuck' on ALWAYS. I tried just making a couple generic metaballs and setting to NEVER using the gui, but they still appear!!! Am i missing something or is there a problem with the NEVER setting in 2.8 ? Thanks for any suggestions or info. This is kind of mission critical. Also, I would like to be able to generate 20k or even 100k metaballs. This was not possible in 2.79, but is it possible in 2.8?? If not, is there some way I can modify (improve?) the source to enable handling of tons of metaballs? I'd be happy to try/contribute although I"m not a cpp expert. I'd also like to make a triangle Mball primitive... that shouldn't be very hard?

todd doehring commented

2019-08-19 20:58:27 +02:00

Added subscriber: @Abemis

Philipp Oeser commented

2019-08-20 12:46:56 +02:00

Added subscriber: @lichtwerk

Philipp Oeser self-assigned this 2019-08-20 12:46:56 +02:00

Philipp Oeser commented

2019-08-20 12:46:56 +02:00

Can confirm the issue about Never still updating.
Also Fast will not recover polygonization after editing is confirmed...

Will have a look.

Can confirm the issue about `Never` still updating. Also `Fast` will not recover polygonization after editing is confirmed... Will have a look.

todd doehring commented

2019-08-21 20:20:13 +02:00

Thank you for the info about 'FAST'. That explains another problem I've been having.

todd doehring commented

2019-09-01 21:41:52 +02:00

Hi,
Is there and ETA for this bug going to be fixed? It seems like a pretty serious bug, and all my work is complete stop until this is fixed. For now I've had to revert all my code back to 2.79.

Thanks for any info.
Todd

Hi, Is there and ETA for this bug going to be fixed? It seems like a pretty serious bug, and **all my work is complete stop** until this is fixed. For now I've had to revert all my code back to 2.79. Thanks for any info. Todd

Philipp Oeser commented

2019-09-05 16:59:46 +02:00

FAST is back (probably due to some - unrelated - change in transform code), so that should help a little, looking into NEVER...

blender-admin commented

2019-09-05 17:07:14 +02:00

This issue was referenced by 1bafa3139c

This issue was referenced by 1bafa3139c361a5ea9df44a260b3f9f492d61812

Philipp Oeser commented

2019-09-05 17:49:39 +02:00

Changed status from 'Open' to: 'Resolved'

Philipp Oeser closed this issue

2019-09-05 17:49:39 +02:00

todd doehring commented

2019-09-23 04:35:23 +02:00

Thanks!
I noticed that this task is now 'closed', but the original issue with 'never' is still not working and using 'fast' makes little difference.

Should I open another task?
I am happy to try and help out; I have the code running in both Eclipse and VScode and can do non-dangerous things.
Really need that 'never' to be working.
Full stop on our development here, can't proceed.

Thanks! I noticed that this task is now 'closed', but the original issue with 'never' is still not working and using 'fast' makes little difference. Should I open another task? I am happy to try and help out; I have the code running in both Eclipse and VScode and can do non-dangerous things. Really need that 'never' to be working. Full stop on our development here, can't proceed.

todd doehring commented

2019-09-23 05:50:55 +02:00

EDIT: I may have made an error in last post. 'Never' seems to be working but not all the time. I can't figure it out, will keep testing.
Thank you.

EDIT: I may have made an error in last post. 'Never' seems to be working but not all the time. I can't figure it out, will keep testing. Thank you.

Philipp Oeser commented

2019-09-23 09:22:28 +02:00

Hi @Abemis : both Never and Fast seems to be working fine here.

If you can provide an example .blend where this fails, I think it is indeed better to open a new report for this [as the original issue has been solved], thx for this.

Hi @Abemis : both `Never` and `Fast` seems to be working fine here. If you can provide an example .blend where this fails, I think it is indeed better to open a new report for this [as the original issue has been solved], thx for this.

todd doehring commented

2019-09-25 11:07:23 +02:00

Thank you again. I've tested and Never is working now. It's very weird if I add a scene (via python) everything speeds up again, then somehow 'always' turns itself back on and it gets super slow again... well that's just FYI in case anyone has similar issue.

When I test some more I'll open a new report with better/proper description.

Thank you again. I've tested and Never is working now. It's very weird if I add a scene (via python) everything speeds up again, then somehow 'always' turns itself back on and it gets super slow again... well that's just FYI in case anyone has similar issue. When I test some more I'll open a new report with better/proper description.

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2.8 Metaballs update 'NEVER' is not working, seems to *always* update even with NEVER selected #68840

2.8 Metaballs update 'NEVER' is not working, seems to always update even with NEVER selected #68840