PC Drivers & Software

[GodlikeDH]

Hi, looking for help, i think there is bug in OpenGL drivers. Was doing some programming with rust egui, i found out that i can't create transparent windows, investigating it further lead that function

 BOOL wglGetPixelFormatAttribivARB(HDC hdc,
                                      int iPixelFormat,
                                      int iLayerPlane,
                                      UINT nAttributes,
                                      const int *piAttributes,
                                      int *piValues);

always return 0 for attribute

WGL_TRANSPARENT_ARB

This reproduces for all possible pixel format ids that  are returned by 

wglChoosePixelFormatARB

There are some of "transparency" related bugs on this forum, may be they all are related to this issue.

Looking for some help, may be there is some devs, who can possibly look at this.

My Setup:

OS:  Microsoft Windows 10 Pro 

OS Version: 10.0.19045 Build19045

Driver Version: 24.20.19.01-241011a-409016C-AMD-Software-Adrenalin-Edition

OpenGL® Driver Version: 24.10.240702_2e2ba6f

GPU: AMD Radeon RX 5700 XT

[goodplay]

May be better to post the issue at https://github.com/GPUOpen-Drivers/AMD-Gfx-Drivers

[GodlikeDH · Accepted solution]

https://github.com/GPUOpen-Drivers/AMD-Gfx-Drivers/issues/29

It's not a bug, just this attribute is not supported for "regular" GPUs