Only search projects.blender.org
Log In
New Account
Home
My Page
Projects
Blender 2.x BF release
Summary
Activity
Tracker
SCM
Files
Blender 2.6 Bug Tracker: Browse
[#26546] Particles leak through deforming quad mesh
Date:
2011-03-19 12:50
Priority:
3
State:
Closed
Submitted by:
Alex Fraser (
z0r
)
Assigned to:
Janne Karhu (jhk)
Category:
Physics
Status:
Fixed / Closed
Relates to:
Duplicates:
Patches:
Summary:
Particles leak through deforming quad mesh
Detailed description
Some particles leak through a deforming quad collision mesh. This does not happen with a triangle mesh.
To reproduce:
- Open the attached .blend file. It has a subdivided collision plane with a wave modifier applied to it.
- Start the animation.
- Look at it from the side - some particles will leak through, especially in the middle.
- Convert the faces in Collider to triangles.
- Start the animation again. This time, no particles will leak through the mesh.
Tested in Blender 2.56 r35623
Ubuntu 10.04
Intel Core i5 CPU U 430 (64-bit)
OpenGL
============================================
renderer: ATI Mobility Radeon HD 5000 Series
vendor: ATI Technologies Inc.
version: 3.2.9756 Compatibility Profile Context
Followup
Message
Date
: 2011-03-19 14:26
Sender
:
Ton Roosendaal
I can imagine that when quads deform non-planar, collisions will fail for it... but Janne might have more info.
Date
: 2011-03-19 14:33
Sender
:
Janne Karhu
Fix committed in r35625, thanks for the report! I had optimized the collision checks in the new code a bit too much and as a result the "edges" that go through quads weren't checked at all.
Attached Files:
Name
Date
Download
leak_quads.blend
2011-03-19 12:50
Download
Changes:
Field
Old Value
Date
By
status_id
Open
2011-03-19 14:33
jhk
close_date
None
2011-03-19 14:33
jhk
Status
Investigate
2011-03-19 14:33
jhk
assigned_to
none
2011-03-19 14:26
ton
Status
New
2011-03-19 14:26
ton
File Added
15438: leak_quads.blend
2011-03-19 12:50
z0r
