Wednesday, July 17, 2019

OpenGL debugging under GNU/Linux.

For debugging OpenGL under GNU/Linux, there are three tools that are very similar to each other. They can capture the stream of OpenGL commands, and let you examine the state at each command. These are the tools:


Renderdoc probably has the easiest interface, and is quite powerful in its capabilities. It lets you view both input and output meshes from your vertex shader, for instance. I do hit on what seems to be a bug in renderdoc if I use uniform buffers, though.

Intel Graphics Performance Analyzer

Intel GPA comes with a graphics frame analyzer. The capturing and analysis of a frame is done with two different commands, though. To capture, run gpa-monitor to launch your app and press Ctrl-Shift-C to capture a frame. Then quit the app and monitor, and run frame-analyzer.

NVidia Nsight Graphics

To capture with NVidia Nsight Graphics, do:

$ cd NVIDIA-Nsight-Graphics-2019.2/host/linux-desktop-nomad-x64/
$ ./nv-nsight-gfx

Choose "Quick Launch" and select "Capture for Live Analysis" in the nsight UI when your app is running.

1 comment:

  1. Are you looking for a business loan, personal loans, mortgage loans, car loans, student loans, unsecured consolidation loans,project funding etc ... Or simply refuse loan from a bank or financial institution for one or more reasons? We are the right solutions for credit! We offer loans to businesses and individuals with low and affordable interest rate of 2%. So if you are Interested in an urgent and secured loan. For more information kindly email us today Via: