Particle Texture Influence Bug (3) #28263

New Issue

Mike Pan · 2011-08-15T21:30:41+02:00

Mike Pan commented

2011-08-15 21:30:41 +02:00

%%%Particle Size Texture Influence Bug

This file shows a simple particle system that uses a (blend)texture to change the size of the particles.

To try it out:

  Press Alt-A to play the animation
  Move the Empty around to see the particle grow and shrink with the empty

The problem:

  Right now, The particle system needs to be set to 'Newtonian Physics' for texture to influence the size, and with global gravity turned off.

Wishlist:

  It would make sense if the size influence could work with the Physics set to 'None'. That should save some computation time and avoid hacks such as setting gravity influence to 0.
  Even better if the particle system can update without having the animation being played-back.

Thanks%%%

%%%Particle Size Texture Influence Bug This file shows a simple particle system that uses a (blend)texture to change the size of the particles. To try it out: ``` Press Alt-A to play the animation Move the Empty around to see the particle grow and shrink with the empty ``` The problem: ``` Right now, The particle system needs to be set to 'Newtonian Physics' for texture to influence the size, and with global gravity turned off. ``` Wishlist: ``` It would make sense if the size influence could work with the Physics set to 'None'. That should save some computation time and avoid hacks such as setting gravity influence to 0. Even better if the particle system can update without having the animation being played-back. ``` Thanks%%%

Mike Pan commented

2011-08-15 21:30:41 +02:00

Changed status to: 'Open'

Janne Karhu commented

2011-08-15 21:32:49 +02:00

%%%Assigned to self for investigation.%%%

Dalai Felinto commented

2011-08-17 00:42:56 +02:00

%%%I actually found a new bug with this.
The texture driven by the object is only working in the 3dview :/

(0) open the file Mike prepared
(1) render it

result is different than 3dview
(2) select the plane and go inside/outside edit mode
it changed in 3dview back to the correct distribution.

[repeat (2) and (3) ad eternum]
%%%

%%%I actually found a new bug with this. The texture driven by the object is only working in the 3dview :/ (0) open the file Mike prepared (1) render it - result is different than 3dview (2) select the plane and go inside/outside edit mode - it changed in 3dview back to the correct distribution. [repeat (2) and (3) ad eternum] %%%

Jeff H commented

2011-08-17 14:56:05 +02:00

%%%I can confirm what Dalai Felinto is saying. It may even be related to the bug i reported:
http://projects.blender.org/tracker/index.php?func=detail&aid=28116&group_id=9&atid=498

They are both kind of the same idea: particles rendering different then what you see in the 3dview.%%%

%%%I can confirm what Dalai Felinto is saying. It may even be related to the bug i reported: http://projects.blender.org/tracker/index.php?func=detail&aid=28116&group_id=9&atid=498 They are both kind of the same idea: particles rendering different then what you see in the 3dview.%%%

Ton Roosendaal commented

2012-10-21 18:32:34 +02:00

%%%Well ehh... this seems to be more an issue than the one I just closed.
Or is it dependency graph?%%%

%%%Well ehh... this seems to be more an issue than the one I just closed. Or is it dependency graph?%%%

Ton Roosendaal commented

2013-02-16 17:51:43 +01:00

%%%Merged with this report:
http://projects.blender.org/tracker/index.php?func=detail&aid=28919&group_id=9&atid=498%%%

%%%Merged with this report: http://projects.blender.org/tracker/index.php?func=detail&aid=28919&group_id=9&atid=498%%%

Ton Roosendaal commented

2013-02-16 17:52:06 +01:00

%%%Merged with this report:
http://projects.blender.org/tracker/index.php?func=detail&aid=30205&group_id=9&atid=498%%%

%%%Merged with this report: http://projects.blender.org/tracker/index.php?func=detail&aid=30205&group_id=9&atid=498%%%

Sergey Sharybin commented

2014-05-29 09:42:33 +02:00

Changed status from 'Open' to: 'Archived'

Sergey Sharybin closed this issue

2014-05-29 09:42:33 +02:00

Sergey Sharybin commented

2014-05-29 09:42:33 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2014-05-29 09:42:33 +02:00

Particles are one of the things which are gonna to be re-worked as a part of the Gosseberry project. Seems this is not really a regression (or at least regression happened ages ago), so moving it to TODO http://wiki.blender.org/index.php/Dev:2.5/Source/Development/Todo/Tools#Particles

We'll address all the limitations/bugs at once with new particle system. Thanks for the report anyway!

Particles are one of the things which are gonna to be re-worked as a part of the Gosseberry project. Seems this is not really a regression (or at least regression happened ages ago), so moving it to TODO http://wiki.blender.org/index.php/Dev:2.5/Source/Development/Todo/Tools#Particles We'll address all the limitations/bugs at once with new particle system. Thanks for the report anyway!

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Particle Texture Influence Bug (3) #28263