Blender Foundation: Blender 2.x BF release: Detail: 25654 bug with strand render with particlesystem, render, object with hair

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[#25654] bug with strand render with particlesystem, render, object with hair

Date:
2011-01-15 23:02 Priority:
3

State:
Closed

Submitted by:
charles proust (buisson) Assigned to:
Brecht Van Lommel (blendix)

Category:
Physics Status:
Fixed / Closed

Relates to: Duplicates:

Patches:

Summary:
bug with strand render with particlesystem, render, object with hair

Detailed description

Here is the description:

plane1 has a particlesystem, type emitter with render->object->plane2.
plane2 has a particlesystem, type hair.
It works OK except if you enable strand render for plane2.

I have attached a simple blend file.

F12->It works
enable strand render for plane2 -> F12 and it bugs.
Thanks

Ubuntu
blender 2.56 r34338

Followup

Message

Date: 2011-03-04 09:50
Sender: Janne Karhu
Can't really make heads or tails about this as it doesn't happen without strand rendering, Brecht can you take a look?

I attached a modified version of the file, which shows that there are strands created, but there are also some render tile conflicts. If tiles are set to 1x1 all the strands are rendered, but it seems there is a wrong matrix used at some point as the hair strands don't start at the duplicated emitters.

Date: 2011-03-11 22:37
Sender: Brecht Van Lommel
Fix in svn, thanks for the report, was a bug in the strand render code.

Attached Files:

Name	Date	Download

problem_object-hair-strandrender.blend	2011-01-15 23:02	Download
problem_object-hair-strandrender_mod.blend	2011-03-04 09:50	Download

Changes:

Field	Old Value	Date	By

status_id	Open	2011-03-11 23:29	blendix
close_date	None	2011-03-11 23:29	blendix
Status	Investigate	2011-03-11 23:29	blendix
File Added	15247: problem_object-hair-strandrender_mod.blend	2011-03-04 09:50	jhk
assigned_to	jhk	2011-03-04 09:50	jhk
assigned_to	none	2011-01-16 15:07	ton
Category	None	2011-01-16 15:07	ton
Status	New	2011-01-16 15:07	ton
File Added	14558: problem_object-hair-strandrender.blend	2011-01-15 23:02	buisson