【Webots 用户指南】<Verifying Your Graphics Driver Installation>

Verifying Your Graphics Driver Installation

Supported Graphics Cards

Webots officially supports only recent NVIDIA and AMD graphics >adapters.
So it is recommended to run Webots on computers equipped with such >graphics adapters and up-to-date drivers provided by the card >manufacturer (i.e., NVIDIA or AMD).
Such drivers are often bundled with the operating system (Windows, >Linux and Mac OS X), but in some cases, it may be necessary to >fetch it from the website of the card manufacturer.

Unsupported Graphics Cards

Webots may nevertheless work with other graphics adapters, in >particular the Intel graphics adapters.
However, this is unsupported and may or may not work, without any >guarantee.
Some users reported success with some Intel graphics cards after >installing the latest version of the driver.
Graphics drivers from Intel may be obtained from the Intel >download center website.
Linux graphics drivers from Intel may be obtained from the Intel >Linux Graphics website.
If some graphical bugs subsist, changing the "RTT preferred mode" >from the Webots OpenGL Preferences from "Framebuffer Object" to >"Pixelbuffer Object" or "Direct Copy" may fix the problems.
However, this may also impact the 3D performance.

Upgrading Your Graphics Driver

On Linux and Windows, you should make sure that the latest graphics >driver is installed.
On the Mac, the latest graphics drivers are automatically installed >by the Software Update, so Mac users are not concerned by this >section.
Note that Webots can run up to 10x slower without the appropriate >driver.
Updating your driver may also solve various problems, i.e., odd >graphics rendering or Webots crashes.

Upgrading the GPU Driver on Linux

On Linux, use this command to check if a hardware accelerated >driver is installed:

$ glxinfo | grep OpenGL

If the output contains the string "NVIDIA", "AMD", or "Intel", this >indicates that a hardware driver is currently installed:

$ glxinfo | grep OpenGL
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 8500 GT/PCI/SSE2
OpenGL version string: 3.0.0 NVIDIA 180.44
...

If you read "Mesa", "Software Rasterizer" or "GDI Generic", this >indicates that the hardware driver is currently not installed and >that your computer is currently using a slow software emulation of >OpenGL:

$ glxinfo | grep OpenGL
OpenGL vendor string: Mesa project: www.mesa3d.org
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.4 (1.5 Mesa 6.5.2)
...

In this case you should definitely install the hardware driver.

On Ubuntu the driver can usually be installed automatically from >the Additional Drivers tab of the Software & Update window.
Otherwise you can find out what graphics hardware is installed on >your computer by using this command:

$ lspci | grep VGA
01:00.0 VGA compatible controller: nVidia Corporation GeForce 8500 >GT (rev a1)

Then you can normally download the appropriate driver from the >graphics hardware manufacturer's website: [http://www.nvidia.com]>(http://www.nvidia.com) for an NVIDIA card or [http://www.amd.com]>(http://www.amd.com) for a AMD graphics card.
Please follow the manufacturer's instructions for the installation.

Upgrading the GPU Driver on Windows

1. Right-click on My Computer.
2. Select Properties.
3. Click on the Device Manager tab.
4. Click on the plus sign to the left of Display adapters.
   The name of the driver appears.
   Make a note of it.
5. Go to the website of your card manufacturer: http://www.nvidia.>com for an NVIDIA card or http://www.amd.>com for a AMD graphics card.
6. Download the driver corresponding to your graphics card.
7. Follow the instructions from the manufacturer to install the >driver.

Hardware Acceleration Tips

Linux: Disable Desktop Effects

Depending on the graphics hardware, there may be a huge performance >drop of the rendering system (up to 10x) when compiz desktop >effects are on.
Also these visual effects may cause some display bug where the main >window of Webots is not properly refreshed.
Hence, on Ubuntu (or other Linux) we recommend to deactivate the >desktop effects.
You can easily disable them using some tools like Compiz Config >Settings Manager or Unity Tweak Tool.