Bug report #20692

3D objects (obj) eats up memory and turns computer unresponsive

Added by Klas Karlsson about 1 year ago.

Status:Open
Priority:Normal
Assignee:-
Category:3D
Affected QGIS version:3.4.2 Regression?:No
Operating System:Ubuntu 18.04 Easy fix?:No
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:Yes Copied to github as #:28512

Description

Using "large" 3D objects to render a lot of points in 3D will start eat up memory (attached image).

When all physical RAM is consumed, it continues with virtual memory. When this also is consumed the computer becomes unresponsive.

I'm using a 6 Mb *.obj file from https://free3d.com/3d-models/ and a point layer with just 500 points. Turning textures "off" helps some, but doesn't fix the problem.

It's a bit of a "fringe" use case, but the software should not allow the computer to become unresponsive at least.

Skärmbild från 2018-12-01 14-35-57.png (211 KB) Klas Karlsson, 2018-12-01 03:11 PM

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