Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-4583

Significant performance degradation when using OpenGL 2 graphics system with lighting example

    XMLWordPrintable

Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 4.6.0
    • 4.6.0
    • GUI: OpenGL
    • None
    • 0bdb0d61d8eea356b1ac7d09ced6dee26d89ee8d

    Description

      When running the lighting example with the OpenGL 2 graphics system, the performance is significantly worse than when using the raster or OpenGL 1 graphics systems. Furthermore, the performance degrades for each additional lighting example run concurrently with the OpenGL 2 engine.

      Reproduced with Qt 4.6 branch on Windows Vista (SHA-1: f6dee67827e72a0660f37998dafb18c6ccd9834e) and Linux.

      Attachments

        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

        Activity

          People

            rweather Rhys Weatherley (closed Nokia identity) (Inactive)
            sthomass Stian Sandvik Thomassen (closed Nokia identity) (Inactive)
            Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Gerrit Reviews

                There are no open Gerrit changes