http://bugs.winehq.org/show_bug.cgi?id=58264
--- Comment #12 from ToastyBug cemer99797@isorax.com --- Sometimes, running BigPEmu in D3D12 mode from the command line argument doesn't work (it launches in the default OpenGL mode)
to get around that, launch BigPEmu once to create the config file: % cd ~/Downloads/BigPEmu_v119 % wine BigPEmu.exe * -localdata -logging
and then open BigPEmu_v119/UserData/BigPEmuConfig.bigpcfg and change
"VideoPlugin": "BigPEmu_Video_OpenGL",
to
"VideoPlugin": "BigPEmu_Video_D3D12",
and relaunch: % wine BigPEmu.exe * -localdata -logging