adjust RdRenderer

pkdawson · Nov 30, 2022 · 152b9b1 · 152b9b1
1 parent 5662f0e
commit 152b9b1
Showing 1 changed file with 9 additions and 5 deletions.
diff --git a/addons/imgui-godot/ImGuiGodot/InternalRdRenderer.cs b/addons/imgui-godot/ImGuiGodot/InternalRdRenderer.cs
@@ -166,16 +166,18 @@ public void CloseViewport(Viewport vp)
 
     public void RenderDrawData(Viewport vp, ImDrawDataPtr drawData)
     {
-        if (drawData.CmdListsCount == 0)
-            return;
-
 #if IMGUI_GODOT_DEV
         RD.DrawCommandBeginLabel("ImGui", Colors.Purple);
 #endif
         RID fb = GetFramebuffer(vp);
 
         int vertSize = Marshal.SizeOf<ImDrawVert>();
 
+        var window = (GodotImGuiWindow)GCHandle.FromIntPtr(drawData.OwnerViewport.PlatformHandle).Target;
+        Transform2D transform = window.Xform;
+        if (transform == Transform2D.Identity)
+            transform = Transform2D.Identity.Translated(window.GetWindowPos()).Inverse(); ;
+
         _scale[0] = 2.0f / drawData.DisplaySize.X;
         _scale[1] = 2.0f / drawData.DisplaySize.Y;
 
@@ -298,11 +300,13 @@ public void RenderDrawData(Viewport vp, ImDrawDataPtr drawData)
                 RD.DrawListBindIndexArray(dl, idxArray);
                 RD.DrawListBindVertexArray(dl, vtxArray);
 
-                RD.DrawListEnableScissor(dl, new Rect2(
+                var clipRect = new Rect2(
                     drawCmd.ClipRect.X,
                     drawCmd.ClipRect.Y,
                     drawCmd.ClipRect.Z - drawCmd.ClipRect.X,
-                    drawCmd.ClipRect.W - drawCmd.ClipRect.Y));
+                    drawCmd.ClipRect.W - drawCmd.ClipRect.Y);
+                clipRect.Position += transform.origin;
+                RD.DrawListEnableScissor(dl, clipRect);
 
                 RD.DrawListDraw(dl, true, 1);