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  1. Qt
  2. QTBUG-82863

OpenGL switch in affine transformation example makes animation freeze

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Details

    • Bug
    • Resolution: Out of scope
    • P3: Somewhat important
    • None
    • 5.15.0 Beta1
    • GUI: OpenGL
    • None
    • Linux/X11

    Description

      Afine transformation example.
      When I switch on "Use OpenGL' button the animation freezes.
      Even though both sliders: Rotate and Scale keep on moving, the animation is still.

      I have run some other strictly OpenGL examples such as "boxes", "2d paiting" or "openglwindows" they all seem to work ok.

      Tested on:
      Ubuntu 18.04.4 LTS,
      Qt lib and Qt creator from online installer
      g++ 64 bits (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0

      glxinfo | grep 'version'
      server glx version string: 1.4
      client glx version string: 1.4
      GLX version: 1.4
          Max core profile version: 4.5
          Max compat profile version: 3.0
          Max GLES1 profile version: 1.1
          Max GLES[23] profile version: 3.1
      OpenGL core profile version string: 4.5 (Core Profile) Mesa 19.2.8
      OpenGL core profile shading language version string: 4.50
      OpenGL version string: 3.0 Mesa 19.2.8
      OpenGL shading language version string: 1.30
      OpenGL ES profile version string: OpenGL ES 3.1 Mesa 19.2.8
      OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
          GL_EXT_shader_implicit_conversions, GL_EXT_shader_integer_mix, 
      

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            lagocs Laszlo Agocs
            anwojcie Anna Wojciechowska
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            Dates

              Created:
              Updated:
              Resolved:

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