fixed the issue where popup windows stopped working

ref: ImGuiNET/ImGui.NET#294
zaafar · Jan 22, 2022 · 7bd87b8 · 7bd87b8
1 parent 3b1ad94
commit 7bd87b8
Showing 1 changed file with 8 additions and 4 deletions.
diff --git a/ClickableTransparentOverlay/ImGuiController.cs b/ClickableTransparentOverlay/ImGuiController.cs
@@ -461,7 +461,6 @@ private void RenderImDrawData(ImDrawDataPtr draw_data, GraphicsDevice gd, Comman
             for (int i = 0; i < draw_data.CmdListsCount; i++)
             {
                 ImDrawListPtr cmd_list = draw_data.CmdListsRange[i];
-
                 cl.UpdateBuffer(
                     _vertexBuffer,
                     vertexOffsetInVertices * (uint)Unsafe.SizeOf<ImDrawVert>(),
@@ -506,6 +505,11 @@ private void RenderImDrawData(ImDrawDataPtr draw_data, GraphicsDevice gd, Comman
                 for (int cmd_i = 0; cmd_i < cmd_list.CmdBuffer.Size; cmd_i++)
                 {
                     ImDrawCmdPtr pcmd = cmd_list.CmdBuffer[cmd_i];
+                    if (pcmd.ElemCount == 0)
+                    {
+                        continue;
+                    }
+
                     if (pcmd.UserCallback != IntPtr.Zero)
                     {
                         throw new NotImplementedException();
@@ -531,12 +535,12 @@ private void RenderImDrawData(ImDrawDataPtr draw_data, GraphicsDevice gd, Comman
                             (uint)(pcmd.ClipRect.Z - pcmd.ClipRect.X),
                             (uint)(pcmd.ClipRect.W - pcmd.ClipRect.Y));
 
-                        cl.DrawIndexed(pcmd.ElemCount, 1, (uint)idx_offset, vtx_offset, 0);
+                        cl.DrawIndexed(pcmd.ElemCount, 1, pcmd.IdxOffset + (uint)idx_offset, (int)pcmd.VtxOffset + vtx_offset, 0);
                     }
-
-                    idx_offset += (int)pcmd.ElemCount;
                 }
+
                 vtx_offset += cmd_list.VtxBuffer.Size;
+                idx_offset += cmd_list.IdxBuffer.Size;
             }
         }