Fix IMGUI Demo with HDR10 (#997)

IMGUI leaves the scissor in a random state. This messes up the color normalization in HDR10, where the scissor needs to include the whole viewport. Restore the scissor after IMGUI is done drawing stuff.
turanszkij · Dec 28, 2024 · 2a4bb4b · 2a4bb4b
1 parent b78e42e
commit 2a4bb4b
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/Samples/Example_ImGui_Docking/Example_ImGui_Docking.cpp b/Samples/Example_ImGui_Docking/Example_ImGui_Docking.cpp
@@ -347,6 +347,17 @@ void Example_ImGui::Compose(wi::graphics::CommandList cmd)
 		vertexOffset += drawList->VtxBuffer.size();
 	}
 
+	// Restore Scissor
+	{
+		Rect scissor;
+		scissor.left = 0;
+		scissor.top = 0;
+		scissor.right = (int32_t)viewport.width;
+		scissor.bottom = (int32_t)viewport.height;
+		device->BindScissorRects(1, &scissor, cmd);
+
+	}
+
 	//// Update and Render additional Platform Windows
 	//if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
 	//{