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
Forum Updated to NodeBB v4.3 + New Features

How to make opengl offscreen renderer

Scheduled Pinned Locked Moved Unsolved General and Desktop
2 Posts 2 Posters 640 Views 1 Watching
  • 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.
  • Roy44R Offline
    Roy44R Offline
    Roy44
    wrote on 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
    0
    • Roy44R Roy44

      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 last edited by A Former User
      #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

      • Login

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