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Viewports: Fix setting of ImGuiViewportFlags_NoRendererClear. (#3213)

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ocornut 2021-02-18 14:08:50 +01:00
parent a4e4f57cb0
commit 3ec14186cb
1 changed files with 4 additions and 2 deletions
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6
imgui.cpp
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@ -6404,9 +6404,11 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
if (window->WindowClass.ViewportFlagsOverrideClear)
viewport_flags &= ~window->WindowClass.ViewportFlagsOverrideClear;
// We also tell the backend that clearing the platform window won't be necessary, as our window is filling the viewport and we have disabled BgAlpha
// We can also tell the backend that clearing the platform window won't be necessary,
// as our window background is filling the viewport and we have disabled BgAlpha.
// FIXME: Work on support for per-viewport transparency (#2766)
if (!(flags & ImGuiWindowFlags_NoBackground))
viewport_flags &= ~ImGuiViewportFlags_NoRendererClear;
viewport_flags |= ImGuiViewportFlags_NoRendererClear;
window->Viewport->Flags = viewport_flags;
}