Offsetting image sequence with driver on displace modifier texture does not work. #44622

Closed
opened 2015-05-06 15:38:01 +02:00 by Diego Soppels · 8 comments

System Information
CPU i7 4930k 3.40GHz
RAM 32Gb

Operating system and graphics card
Windows 8.1pro 64bit Nvidia GTX 780i

Blender Version
Broken: 2.74 000dfc0

Short description of error
Offsetting image sequence with driver on displace modifier texture does not work. ( driver is generated but doesn't work)

Exact steps for others to reproduce the error

  • Use displacement modifier on subdivided mesh
  • Use image sequence as displacement texture
  • try to control image sequence offset with driver.
  • not working!!!

We need this to animate growing veins on character.

We are uploading blend file, however image sequences cannot be packed. Driver in blend file is set but with empty sequence.

**System Information** CPU i7 4930k 3.40GHz RAM 32Gb Operating system and graphics card Windows 8.1pro 64bit Nvidia GTX 780i **Blender Version** Broken: 2.74 000dfc0 **Short description of error** Offsetting image sequence with driver on displace modifier texture does not work. ( driver is generated but doesn't work) **Exact steps for others to reproduce the error** - Use displacement modifier on subdivided mesh - Use image sequence as displacement texture - try to control image sequence offset with driver. - not working!!! We need this to animate growing veins on character. We are uploading blend file, however image sequences cannot be packed. Driver in blend file is set but with empty sequence.
Author

Changed status to: 'Open'

Changed status to: 'Open'
Author

Added subscriber: @DiegoSG

Added subscriber: @DiegoSG

Added subscriber: @mont29

Added subscriber: @mont29

Missing .blend file so far…

Anyway, this is most likely a limitation of depsgraph, would need the file to be sure though.

Did you try to enable extra object/obdata updates of your objects (Object buttons, Relations Extra panel)? This (bad) hack can fix some issues of that kind sometimes.

Missing .blend file so far… Anyway, this is most likely a limitation of depsgraph, would need the file to be sure though. Did you try to enable extra object/obdata updates of your objects (Object buttons, Relations Extra panel)? This (bad) hack can fix some issues of that kind sometimes.
Author

Here it is, I first sent it through mail, sorry about that.
Displace_driver.blend

Here it is, I first sent it through mail, sorry about that. [Displace_driver.blend](https://archive.blender.org/developer/F170902/Displace_driver.blend)

Changed status from 'Open' to: 'Archived'

Changed status from 'Open' to: 'Archived'
Bastien Montagne self-assigned this 2015-05-07 13:22:12 +02:00

Hmmm… OK, I think this is current depsgraph limitation - modifiers are not well supported here… Workaround: remove your driver, add a dummy material, assign to it same exact texture, add driver to this 'usecase' of the texture. Should work, and since it's the same datablock, driver will affect modifier texture as well.

Will close as known limitation of current code, hopefully this shall be fixed with incoming new depsgraph. Thanks for the report anyway.

Hmmm… OK, I think this is current depsgraph limitation - modifiers are not well supported here… Workaround: remove your driver, add a dummy material, assign to it same exact texture, add driver to this 'usecase' of the texture. Should work, and since it's the same datablock, driver will affect modifier texture as well. Will close as known limitation of current code, hopefully this shall be fixed with incoming new depsgraph. Thanks for the report anyway.
Author

Thanks , works perfect!!!!

Thanks , works perfect!!!!
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Reference: blender/blender#44622
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