Volume intersection objects #43071

New Issue

pistol ioan · 2014-12-30T17:34:41+01:00

pistol ioan commented

2014-12-30 17:34:41 +01:00

System Information
Win 8, 64bit; Gtx 970

Blender Version
Blender 2.72 Hash: 646a96b

volume_intersection_objects.blend
Volume intersection of objects display weird noises triangle

I have attached an image and blend file.

Thx

**System Information** Win 8, 64bit; Gtx 970 **Blender Version** Blender 2.72 Hash: 646a96b ![volume_intersection_objects.jpg](https://archive.blender.org/developer/F134308/volume_intersection_objects.jpg) [volume_intersection_objects.blend](https://archive.blender.org/developer/F134309/volume_intersection_objects.blend) **Volume intersection of objects display weird noises triangle** I have attached an image and blend file. Thx

pistol ioan commented

2014-12-30 17:34:41 +01:00

Changed status to: 'Open'

pistol ioan commented

2014-12-30 17:34:41 +01:00

Added subscriber: @istoltoto

Aaron Carlisle commented

2014-12-30 17:39:59 +01:00

Added subscriber: @Blendify

pistol ioan commented

2014-12-30 17:40:03 +01:00

Is this a bug or a feature unsupported of cycles?
Or is already a button to render the objects with intersections?

Is this a bug or a feature unsupported of cycles? Or is already a button to render the objects with intersections?

Sergey Sharybin commented

2014-12-30 17:41:03 +01:00

Added subscriber: @Sergey

Sergey Sharybin commented

2014-12-30 17:41:03 +01:00

Some questions:

Does it happen with latest builds from https://builder.blender.org/download/ ?
Does changing from dynamic to static bvh helps?
Does it only happen in viewport or also happens in final render?

Some questions: - Does it happen with latest builds from https://builder.blender.org/download/ ? - Does changing from dynamic to static bvh helps? - Does it only happen in viewport or also happens in final render?

Aaron Carlisle commented

2014-12-30 17:44:12 +01:00

tested this and only happens in the view port

pistol ioan commented

2014-12-30 17:53:00 +01:00

I just tested in "blender-2.73-d993bad-win64.zip" last build.
With static and bvh.
And yes in both, render and viewport.

Unfortunately is bad everywhere :D

I just tested in "blender-2.73-d993bad-win64.zip" last build. With static and bvh. And yes in both, render and viewport. Unfortunately is bad everywhere :D

Aaron Carlisle commented

2014-12-30 18:11:37 +01:00

this i my render result{F134316}

this i my render result{[F134316](https://archive.blender.org/developer/F134316/untitled.png)}

pistol ioan commented

2014-12-30 18:22:04 +01:00

You found another bug :P

Aaron Carlisle commented

2014-12-30 18:31:47 +01:00

which is...

Sergey Sharybin commented

2014-12-31 09:44:45 +01:00

Changed status from 'Open' to: 'Archived'

Sergey Sharybin closed this issue

2014-12-31 09:44:45 +01:00

Sergey Sharybin self-assigned this 2014-12-31 09:44:45 +01:00

Sergey Sharybin commented

2014-12-31 09:44:45 +01:00

After some more detailed investigation came to a conclusion there are no bugs at all.

Original issue with triangles is caused by the fact that you're having intersecting co-planar faces. This is always asking for issues because of the nature of computer arithmetics which always have precision issues and there's no clear way to deal with such configurations.

Issue with missing geometry on render is causedby disabled geometry visibility for the render layer.

So thanks for the report, but thereis no actual bugs in here.

After some more detailed investigation came to a conclusion there are no bugs at all. Original issue with triangles is caused by the fact that you're having intersecting co-planar faces. This is always asking for issues because of the nature of computer arithmetics which always have precision issues and there's no clear way to deal with such configurations. Issue with missing geometry on render is causedby disabled geometry visibility for the render layer. So thanks for the report, but thereis no actual bugs in here.

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Volume intersection objects #43071