Page MenuHome
Create Task
Maniphest T82242

Particle System Influence procedural textures [e.g. on hair length] dont update in realtime immediately [depsgraph relation will work only after certain updates]
Closed, ResolvedPublicBUG
Actions

Description

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.38

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-10-18 20:27, hash: rB48c484a22e0d
Worked: (newest version of Blender that worked as expected)

Short description of error
[Please fill out a short description of the error here]

Exact steps for others to reproduce the error

  • create hair particle system
  • create texture for hair length parameter and try to manipulate with size, contrast, intensity or other
  • parameters not update until I check on/off hair length checkbox. try to change any parameter and on/off for apply.

  • create a keyframe on hair length (now changing clouds Size slider will update in realtime)
  • remove the keyframe: relation still works (clouds Size slider will update in realtime)

  • save the file
  • reload the file --> relation is intact (clouds Size slider will update in realtime)

Since this is only an issue if the file is not saved, an example file is not really showing the issue, here it is anyways

T82242.blend588 KBDownload

Revisions and Commits

rB Blender
D9393rB3b57927651fe Fix T82242: creating particle influence textures does not set up DEG

Related Objects

Event Timeline

Roman Yu (ramoncarlos) created this task.Oct 30 2020, 1:52 AM
Nicholas Hawkes (nicholashawkes) added a subscriber: Nicholas Hawkes (nicholashawkes).Oct 30 2020, 6:18 AM
Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Oct 30 2020, 9:43 AM
Philipp Oeser (lichtwerk) changed the subtype of this task from "Report" to "Bug".
Philipp Oeser (lichtwerk) added a project: Nodes & Physics.
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

Can confirm.

Note T76251: Animated procedural texture does not influence particle system is related.

Philipp Oeser (lichtwerk) renamed this task from don`t update hair lenght with generated texture to Particle System Influence procedural textures [e.g. on hair length] dont update in realtime [animating works - even removing animation keeps relation intact].Oct 30 2020, 10:10 AM
Philipp Oeser (lichtwerk) updated the task description. (Show Details)
Philipp Oeser (lichtwerk) added a project: Dependency Graph.
Philipp Oeser (lichtwerk) renamed this task from Particle System Influence procedural textures [e.g. on hair length] dont update in realtime [animating works - even removing animation keeps relation intact] to Particle System Influence procedural textures [e.g. on hair length] dont update in realtime immediately [depsgraph relation will work only after certain updates].Oct 30 2020, 10:31 AM
Philipp Oeser (lichtwerk) updated the task description. (Show Details)
Philipp Oeser (lichtwerk) claimed this task.Oct 30 2020, 10:48 AM

Think I got a fix [adding the texture should rebuild DEG relations immediately]

Philipp Oeser (lichtwerk) added a revision: D9393: Fix T82242: creating particle influence textures does not set up DEG relation immediately.Oct 30 2020, 12:14 PM
Philipp Oeser (lichtwerk) closed this task as Resolved by committing rB3b57927651fe: Fix T82242: creating particle influence textures does not set up DEG.Dec 9 2020, 10:02 PM
Philipp Oeser (lichtwerk) added a commit: rB3b57927651fe: Fix T82242: creating particle influence textures does not set up DEG.