Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Darkening effect when stacking more than about 16 mesh layers with transparent material #124

Closed
Theverat opened this issue Jul 28, 2018 · 3 comments
Closed

Darkening effect when stacking more than about 16 mesh layers with transparent material #124

Theverat opened this issue Jul 28, 2018 · 3 comments
Assignees
@Dade916
Labels
bug
Projects
LuxCoreRender v2.1

Comments

@Theverat
Copy link
Member

Theverat commented Jul 28, 2018 •
edited

Forum post: https://forums.luxcorerender.org/viewtopic.php?f=4&t=519&p=5107#p5107

16 layered planes:
0001

26 layered planes:
0011

Scene setup:
scrn_2018-07-28_11-21-39

Blender and LuxCore files:
opacity.blend.zip
opacity_LuxCore.zip
@Dade916 Dade916 self-assigned this Jul 28, 2018
Dade916 added a commit that referenced this issue Jul 28, 2018
@Dade916
Fixed the Scene::Intersect() passtrought random varialbe generation t…
083f078 
…o avoid problem with multiple layer of transparent objects (issue #124)
@Dade916 Dade916 added the bug label Jul 28, 2018
Dade916 added a commit that referenced this issue Jul 28, 2018
@Dade916
Fixed issue #124 in OpenCL code too
4cdc796
@Dade916
Copy link
Member

Dade916 commented Jul 28, 2018

The problem should be now fixed.

@Theverat
Copy link
Member Author

Confirmed, thanks!

Dade916 added a commit that referenced this issue Jul 31, 2018
@Dade916
Fixed a problem in OpenCL code of solution to issue #124
de268ce
@Dade916 Dade916 added this to To Do in LuxCoreRender v2.1 via automation Jul 31, 2018
@Dade916
Copy link
Member

Dade916 commented Jul 31, 2018 •
edited

Note: TILEPATHOCL (and RTPATHOCL) count the layers of transparent surfaces as an iteration of the finite rendering state machine so they requires to increase the max. path depth to avoid black regions. This is an unavoidable problem without having a performance penalty. All other rendering engines work as intended and can use a max. path depth where transparent surfaces are skipped.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@Dade916 Dade916

Labels
bug
Projects
No open projects
LuxCoreRender v2.1
  
To Do
Milestone
No milestone
Development

No branches or pull requests
2 participants
@Theverat @Dade916