Blender Foundation: Blender 2.x BF release: Detail: 24966 render result: tiled on hair !?

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[#24966] render result: tiled on hair !?

Date:
2010-11-29 07:41 Priority:
3

State:
Closed

Submitted by:
di mistic (budip) Assigned to:
Brecht Van Lommel (blendix)

Category:
Rendering Status:
Fixed / Closed

Relates to: Duplicates:

Patches:

Summary:
render result: tiled on hair !?

Detailed description

you will see tile on render if use hair strand
see pic --> http://www.pasteall.org/pic/show.php?id=7181

I am attach my blend file here

version 2.55 (sub 0), revision 33348. Release
build date: 2010-11-27, 09:39:04
platform: Linux:64bit

OpenGL
============================================

renderer: GeForce 9600 GT/PCI/SSE2
vendor: NVIDIA Corporation
version: 3.2.0 NVIDIA 195.36.24

Followup

Message

Date: 2010-11-29 13:38
Sender: Ton Roosendaal
I could not render this on my 32 bits system, but a simpliefied amount of particles shows the error too.
Both in 2.55 official release, as current svn.

Seems to be related to using "Blender Units" for strand width, using pixels goes fine.
Brecht, you know?

Date: 2010-12-23 14:47
Sender: Ton Roosendaal
I notice the bound clipping happens on strand centers, not on the actual displayed size... maybe i can fix it even :) tomorrow...

Date: 2010-12-26 13:34
Sender: M.G. Kishalmi
attaching a simple testcase .blend
change Render > Performance > Tiles > X from 1 to 2 to get the bug

r33874@linux64

Date: 2010-12-26 18:47
Sender: Ton Roosendaal
Fix goes to svn, keep testing and report if things are still bad!

Attached Files:

Name	Date	Download

render_tiled.jpg	2010-11-29 07:41	Download
bulu.rar	2010-11-29 07:42	Download
bulu.blend	2010-11-29 13:38	Download
bug_24966.blend	2010-12-26 13:34	Download

Changes:

Field	Old Value	Date	By

status_id	Open	2010-12-26 18:47	ton
close_date	None	2010-12-26 18:47	ton
Status	Investigate	2010-12-26 18:47	ton
File Added	14263: bug_24966.blend	2010-12-26 13:34	lmg
File Added	13872: bulu.blend	2010-11-29 13:38	ton
Resolution	New	2010-11-29 13:38	ton
assigned_to	none	2010-11-29 13:38	ton
File Added	13865: bulu.rar	2010-11-29 07:42	budip
File Added	13864: render_tiled.jpg	2010-11-29 07:41	budip