Hair particles: Brush effect [e.g. combing] not occluded by emitter geometry #71987
Labels
No Label
Interest
Alembic
Interest
Animation & Rigging
Interest
Asset Browser
Interest
Asset Browser Project Overview
Interest
Audio
Interest
Automated Testing
Interest
Blender Asset Bundle
Interest
BlendFile
Interest
Collada
Interest
Compatibility
Interest
Compositing
Interest
Core
Interest
Cycles
Interest
Dependency Graph
Interest
Development Management
Interest
EEVEE
Interest
EEVEE & Viewport
Interest
Freestyle
Interest
Geometry Nodes
Interest
Grease Pencil
Interest
ID Management
Interest
Images & Movies
Interest
Import Export
Interest
Line Art
Interest
Masking
Interest
Metal
Interest
Modeling
Interest
Modifiers
Interest
Motion Tracking
Interest
Nodes & Physics
Interest
OpenGL
Interest
Overlay
Interest
Overrides
Interest
Performance
Interest
Physics
Interest
Pipeline, Assets & IO
Interest
Platforms, Builds & Tests
Interest
Python API
Interest
Render & Cycles
Interest
Render Pipeline
Interest
Sculpt, Paint & Texture
Interest
Text Editor
Interest
Translations
Interest
Triaging
Interest
Undo
Interest
USD
Interest
User Interface
Interest
UV Editing
Interest
VFX & Video
Interest
Video Sequencer
Interest
Virtual Reality
Interest
Vulkan
Interest
Wayland
Interest
Workbench
Interest: X11
Legacy
Blender 2.8 Project
Legacy
Milestone 1: Basic, Local Asset Browser
Legacy
OpenGL Error
Meta
Good First Issue
Meta
Papercut
Meta
Retrospective
Meta
Security
Module
Animation & Rigging
Module
Core
Module
Development Management
Module
EEVEE & Viewport
Module
Grease Pencil
Module
Modeling
Module
Nodes & Physics
Module
Pipeline, Assets & IO
Module
Platforms, Builds & Tests
Module
Python API
Module
Render & Cycles
Module
Sculpt, Paint & Texture
Module
Triaging
Module
User Interface
Module
VFX & Video
Platform
FreeBSD
Platform
Linux
Platform
macOS
Platform
Windows
Priority
High
Priority
Low
Priority
Normal
Priority
Unbreak Now!
Status
Archived
Status
Confirmed
Status
Duplicate
Status
Needs Info from Developers
Status
Needs Information from User
Status
Needs Triage
Status
Resolved
Type
Bug
Type
Design
Type
Known Issue
Type
Patch
Type
Report
Type
To Do
No Milestone
No project
No Assignees
2 Participants
Notifications
Due Date
No due date set.
Dependencies
No dependencies set.
Reference: blender/blender#71987
Loading…
Reference in New Issue
No description provided.
Delete Branch "%!s(<nil>)"
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?
System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.36
Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash:
26bd5ebd42
(Also happened in the newest 2.82 alpha from today (which also seems to have even worse combing performance))
Worked: (2.8 , 2.79)
Short description of error
The hair combing brush affects the hair on the opposing side of the mesh making combing impossible as already combed hair / fur gets ruined when the fur is combed on the opposing side of the mesh.
Exact steps for others to reproduce the error
Open the attached file for simple example of combed situation
or
Create new blend file and:
Additionally selecting hair particles with C selection also selects the hairs on the opposing side and thus it cannot easily be used to limit the combing effect to some area
Depending on the mesh you can also see "live" how the error happens. When I comb hair around my animal character's eye looking towards the cheek of the opposing side, the fur moves on both cheeks even though I only work on the eye area because opposing cheek gets modified and them mirrored to both sides. This happens with mirroring enabled.
If these are caused by some "xray" system somewhere I couldn't find it and it shouldn't be on by default. And it wasn't on 2.8 as I already added fur to my character without issues but had to redo it and cannot get same results now due to this issue.
HairComb_Issue.blend
Added subscriber: @Jarwa
Added subscriber: @lichtwerk
Can confirm.
2.79 was occluding with emitter geometry [which -- if not optional / defined by a setting -- is the better default]
Combing brush affects fur/hair on the opposing side of the mesh (not mirror)to Hair particles: Brush effect [e.g. combing] not occluded by emitter geometryActually, this has been reported before, see #71558 (Particle Edit ignores object occlusion), will merge these reports...
Closed as duplicate of #71558