User Manual

FastRawViewer – user manual

Troubleshooting

Windows: Changing the Active Graphics Engine

In some cases (to the best of our knowledge, this will only happen due to an old graphics driver),

FastRawViewer cannot use the automatically selected graphics engine.

When this happens, one of the following warnings is displayed:

OpenGL mode, unsupported version of OpenGL

FastRawViewer informs the user that the version of OpenGL made available by the OS is not recent

enough for the program to operate, and offers to manually switch to the graphics acceleration

through DirectX 9 (see below, the section “Manually Changing Graphics Modes”)