From 577236113e8fefe9c15c98120ae1ddc2fafac8ee Mon Sep 17 00:00:00 2001
From: Terria-K <teuria@proton.me>
Date: Sat, 12 Oct 2024 23:28:07 +0800
Subject: [PATCH] Fixed ImGui Index offset

---
 Riateu/Core/ImGui/ImGuiRenderer.cs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/Riateu/Core/ImGui/ImGuiRenderer.cs b/Riateu/Core/ImGui/ImGuiRenderer.cs
index a22cef6..27cb3ce 100644
--- a/Riateu/Core/ImGui/ImGuiRenderer.cs
+++ b/Riateu/Core/ImGui/ImGuiRenderer.cs
@@ -266,7 +266,8 @@ private void RenderCommandLists(CommandBuffer buffer, RenderPass renderPass, ImD
         renderPass.BindVertexBuffer(imGuiVertexBuffer);
         renderPass.BindIndexBuffer(imGuiIndexBuffer, IndexElementSize.SixteenBit);
 
-        uint vertexOffset = 0;
+        int vertexOffset = 0;
+        uint indexOffset = 0;
 
         for (int n = 0; n < drawDataPtr.CmdListsCount; n += 1)
         {
@@ -296,13 +297,14 @@ private void RenderCommandLists(CommandBuffer buffer, RenderPass renderPass, ImD
                 renderPass.DrawIndexedPrimitives(
                     drawCmd.ElemCount,
                     1,
-                    0u,
-                    (int)vertexOffset,
+                    indexOffset,
+                    vertexOffset,
                     0u
                 );
+                indexOffset += (uint)drawCmd.ElemCount;
             }
 
-            vertexOffset += (uint)cmdList.VtxBuffer.Size;
+            vertexOffset += cmdList.VtxBuffer.Size;
         }
     }