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[#26175] Two side node material with transparency texture atialiasing problem.

Date:
2011-02-22 01:57
Priority:
3
State:
Closed
Submitted by:
Adam Jaworski (jawra)
Assigned to:
Ton Roosendaal (ton)
Category:
Rendering
Status:
Fixed / Closed
Relates to:
Duplicates:
Patches:
 
Summary:
Two side node material with transparency texture atialiasing problem.
Detailed description
When node material has alpha transparency texture, sharp edges created by texture are jagged even when FullSample option is on.
It affects two side material setup with ZTransparency on, which is useful while rendering e.g. cross sections.
It doesn't affect RayTransparency setup - works fine when all materials in node are using RayTransparency and the same alpha texture.
This bug comes from 2.4x.
Tested on WinXP and Ubuntu 10.04.
Attached .blend file with additional comments.

Followup

Message
  • Date: 2011-02-22 18:47
  • Sender: Ton Roosendaal
  • To me it seems this now renders all OK (for current svn). Previous bugfix also solved this case?
  • Date: 2011-02-24 01:31
  • Sender: Adam Jaworski
  • Now it works fine :)) Tanks.
    If you mean this bug : [#25967] 'Geometry node "Front/Back" output doesn't work with "Full Oversampling" on' - your commit #34993 didn't solve this. Full Oversampling was working fine but not with ZTranparency. Commit #35080 solved this finally.
    BTW: 'Max Dist' and 'Fade To' options from Mirror panel have influence on both Mirror and RayTransp computing but Transparency panel doesn't have this and it's easy to forget about it when Mirror panel is closed. In 2.49 it was the same panel so easier to see it. I've spent over one hour to figure out why transparency is fading to Sky. Finally firing 2.49 helped. Is there a way to solve this?
  • Date: 2011-02-24 01:39
  • Sender: Adam Jaworski
  • One more thing: when Mirror is off, this options are grayed out like they are nothing to do.
    Regards. And my apology for bothering you here.
  • Date: 2011-02-24 15:56
  • Sender: Ton Roosendaal
  • Adam: we just went over a very long and painful process to align all ideas for how to make the buttons configuration for materials.
    The issue is mostly that the material/shader/light system in blender evolved over 15 years into a system with options that don't collaborate well. I rather not put more time in this, and put energy in finishing 2.5-stable, and setting up a complete redesign project for a shader/light system that's ready for this decade :)
  • Date: 2011-02-24 16:09
  • Sender: Adam Jaworski
  • I see your point and many thanks for your effort :)
 

Attached Files:

Name Date Download
test_3.blend 2011-02-22 01:57 Download

Changes:

Field Old Value Date By
StatusInvestigate2011-02-24 15:56ton
status_idOpen2011-02-24 15:56ton
close_dateNone2011-02-24 15:56ton
assigned_tonone2011-02-22 13:36ton
StatusNew2011-02-22 13:36ton
File Added15098: test_3.blend2011-02-22 01:57jawra