Issue
On Windows, after the startup message Initializing texture cache..., the viewer hides the splash screen and exposes the main viewer window. During that transition, the client area can be background-erased by Win32 before the first rendered frame is available, producing a visible white flash.
Testing
Launch the viewer on Windows; confirm no white flash between window appearing and first rendered frame.
Resize the window by dragging an edge.
Minimize and restore the viewer window.
This is a contribution: #5903
Issue
On Windows, after the startup message Initializing texture cache..., the viewer hides the splash screen and exposes the main viewer window. During that transition, the client area can be background-erased by Win32 before the first rendered frame is available, producing a visible white flash.
Testing
Launch the viewer on Windows; confirm no white flash between window appearing and first rendered frame.
Resize the window by dragging an edge.
Minimize and restore the viewer window.
This is a contribution: #5903