From d0af9b5c2d4fee143e4c7565b5e72bb80ceda2e6 Mon Sep 17 00:00:00 2001
From: emil28092005 <emil28092005@users.noreply.github.com>
Date: Fri, 19 Jun 2026 08:07:44 +0300
Subject: [PATCH] =?UTF-8?q?fix:=20UBO=20binding=200=20visible=20to=20fragm?=
 =?UTF-8?q?ent=20shader=20=E2=80=94=20lights=20now=20work?=
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Root cause: descriptor set layout binding 0 (SceneUBO) had stageFlags=Vertex
only. Fragment shader reads numLights, lights[], shadowParams[] from UBO
but couldn't access it. Changed to Vertex|Fragment.
---
 imgui.ini                                    | 5 +++++
 src/Engine.Graphics.Vulkan/VulkanPipeline.cs | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/imgui.ini b/imgui.ini
index da274ca..5ca3dc3 100644
--- a/imgui.ini
+++ b/imgui.ini
@@ -28,3 +28,8 @@ Pos=772,456
 Size=507,263
 Collapsed=0
 
+[Window][Shadow & Light Parameters]
+Pos=-1,195
+Size=427,372
+Collapsed=0
+
diff --git a/src/Engine.Graphics.Vulkan/VulkanPipeline.cs b/src/Engine.Graphics.Vulkan/VulkanPipeline.cs
index 6ab6812..83878c2 100644
--- a/src/Engine.Graphics.Vulkan/VulkanPipeline.cs
+++ b/src/Engine.Graphics.Vulkan/VulkanPipeline.cs
@@ -220,7 +220,7 @@ internal sealed unsafe class VulkanPipeline : IDisposable
             binding = 0,
             descriptorType = VkDescriptorType.UniformBuffer,
             descriptorCount = 1,
-            stageFlags = VkShaderStageFlags.Vertex,
+            stageFlags = VkShaderStageFlags.Vertex | VkShaderStageFlags.Fragment,
         };
         bindings[1] = new VkDescriptorSetLayoutBinding
         {