Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. How to make opengl offscreen renderer
QtWS25 Last Chance

How to make opengl offscreen renderer

Scheduled Pinned Locked Moved Unsolved General and Desktop
2 Posts 2 Posters 628 Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • R Offline
    R Offline
    Roy44
    wrote on 8 Jul 2016, 18:35 last edited by
    #1

    Hi,
    I would like to generate pixmap from opengl offscreen renderer.
    An extenal library do the rendering; I have modified this library to use QOpenGLContext.
    So it works for rendering in QOpenGLWidget.
    My purpose is to generate pixmap from opengl rendering offscreen to make icons
    in combobox.

    Thanks,

    ? 1 Reply Last reply 8 Jul 2016, 19:16
    0
    • R Roy44
      8 Jul 2016, 18:35

      Hi,
      I would like to generate pixmap from opengl offscreen renderer.
      An extenal library do the rendering; I have modified this library to use QOpenGLContext.
      So it works for rendering in QOpenGLWidget.
      My purpose is to generate pixmap from opengl rendering offscreen to make icons
      in combobox.

      Thanks,

      ? Offline
      ? Offline
      A Former User
      wrote on 8 Jul 2016, 19:16 last edited by A Former User 7 Aug 2016, 19:19
      #2

      @Roy44 Hi! As a first read I recommend the documentation page for QOffscreenSurface Class and then the Rendering FBOs in a Thread example. Good luck :-)

      1 Reply Last reply
      1

      2/2

      8 Jul 2016, 19:16

      • Login

      • Login or register to search.
      2 out of 2
      • First post
        2/2
        Last post
      0
      • Categories
      • Recent
      • Tags
      • Popular
      • Users
      • Groups
      • Search
      • Get Qt Extensions
      • Unsolved