diff --git a/src/common/rendering/gl/gl_framebuffer.cpp b/src/common/rendering/gl/gl_framebuffer.cpp
index 498c91e692..5be590cbc1 100644
--- a/src/common/rendering/gl/gl_framebuffer.cpp
+++ b/src/common/rendering/gl/gl_framebuffer.cpp
@@ -362,9 +362,9 @@ void OpenGLFrameBuffer::BlurScene(float amount)
 	GLRenderer->BlurScene(amount);
 }
 
-void OpenGLFrameBuffer::InitLightmap(FLevelLocals *Level)
+void OpenGLFrameBuffer::InitLightmap(int LMTextureSize, int LMTextureCount, TArray<uint16_t>& LMTextureData)
 {
-	if (Level->LMTextureData.Size() > 0)
+	if (LMTextureData.Size() > 0)
 	{
 		GLint activeTex = 0;
 		glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTex);
@@ -374,14 +374,14 @@ void OpenGLFrameBuffer::InitLightmap(FLevelLocals *Level)
 			glGenTextures(1, (GLuint*)&GLRenderer->mLightMapID);
 
 		glBindTexture(GL_TEXTURE_2D_ARRAY, GLRenderer->mLightMapID);
-		glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGB16F, Level->LMTextureSize, Level->LMTextureSize, Level->LMTextureCount, 0, GL_RGB, GL_HALF_FLOAT, &Level->LMTextureData[0]);
+		glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGB16F, LMTextureSize, LMTextureSize, LMTextureCount, 0, GL_RGB, GL_HALF_FLOAT, &LMTextureData[0]);
 		glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 		glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 		glGenerateMipmap(GL_TEXTURE_2D_ARRAY);
 
 		glActiveTexture(activeTex);
 
-		Level->LMTextureData.Reset(); // We no longer need this, release the memory
+		LMTextureData.Reset(); // We no longer need this, release the memory
 	}
 }
 
diff --git a/src/common/rendering/gl/gl_framebuffer.h b/src/common/rendering/gl/gl_framebuffer.h
index 301a64004b..1455ead3ed 100644
--- a/src/common/rendering/gl/gl_framebuffer.h
+++ b/src/common/rendering/gl/gl_framebuffer.h
@@ -50,7 +50,7 @@ public:
 	IIndexBuffer *CreateIndexBuffer() override;
 	IDataBuffer *CreateDataBuffer(int bindingpoint, bool ssbo, bool needsresize) override;
 
-	void InitLightmap(FLevelLocals* Level) override;
+	void InitLightmap(int LMTextureSize, int LMTextureCount, TArray<uint16_t>& LMTextureData) override;
 
 	// Retrieves a buffer containing image data for a screenshot.
 	// Hint: Pitch can be negative for upside-down images, in which case buffer
diff --git a/src/common/rendering/v_video.h b/src/common/rendering/v_video.h
index e92f67f950..31e7389d07 100644
--- a/src/common/rendering/v_video.h
+++ b/src/common/rendering/v_video.h
@@ -221,7 +221,7 @@ public:
 	virtual int GetClientHeight() = 0;
 	virtual void BlurScene(float amount) {}
 
-	virtual void InitLightmap(FLevelLocals *Level) {}
+	virtual void InitLightmap(int LMTextureSize, int LMTextureCount, TArray<uint16_t>& LMTextureData) {}
 
     // Interface to hardware rendering resources
 	virtual IVertexBuffer *CreateVertexBuffer() { return nullptr; }
diff --git a/src/common/rendering/vulkan/system/vk_framebuffer.cpp b/src/common/rendering/vulkan/system/vk_framebuffer.cpp
index d030eea848..213cf56a4c 100644
--- a/src/common/rendering/vulkan/system/vk_framebuffer.cpp
+++ b/src/common/rendering/vulkan/system/vk_framebuffer.cpp
@@ -579,13 +579,13 @@ void VulkanFrameBuffer::BeginFrame()
 	}
 }
 
-void VulkanFrameBuffer::InitLightmap(FLevelLocals* Level)
+void VulkanFrameBuffer::InitLightmap(int LMTextureSize, int LMTextureCount, TArray<uint16_t>& LMTextureData)
 {
-	if (Level->LMTextureData.Size() > 0)
+	if (LMTextureData.Size() > 0)
 	{
-		int w = Level->LMTextureSize;
-		int h = Level->LMTextureSize;
-		int count = Level->LMTextureCount;
+		int w = LMTextureSize;
+		int h = LMTextureSize;
+		int count = LMTextureCount;
 		int pixelsize = 8;
 		auto& lightmap = mActiveRenderBuffers->Lightmap;
 
@@ -620,7 +620,7 @@ void VulkanFrameBuffer::InitLightmap(FLevelLocals* Level)
 		stagingBuffer->SetDebugName("VkHardwareTexture.mStagingBuffer");
 
 		uint16_t one = 0x3c00; // half-float 1.0
-		uint16_t* src = &Level->LMTextureData[0];
+		uint16_t* src = &LMTextureData[0];
 		uint16_t* data = (uint16_t*)stagingBuffer->Map(0, totalSize);
 		for (int i = w * h * count; i > 0; i--)
 		{
@@ -650,7 +650,7 @@ void VulkanFrameBuffer::InitLightmap(FLevelLocals* Level)
 		FrameTextureUpload.Buffers.push_back(std::move(stagingBuffer));
 		FrameTextureUpload.TotalSize += totalSize;
 
-		Level->LMTextureData.Reset(); // We no longer need this, release the memory
+		LMTextureData.Reset(); // We no longer need this, release the memory
 	}
 }
 
diff --git a/src/common/rendering/vulkan/system/vk_framebuffer.h b/src/common/rendering/vulkan/system/vk_framebuffer.h
index a18be697df..4098fd7ff8 100644
--- a/src/common/rendering/vulkan/system/vk_framebuffer.h
+++ b/src/common/rendering/vulkan/system/vk_framebuffer.h
@@ -85,7 +85,7 @@ public:
 	void SetTextureFilterMode() override;
 	void StartPrecaching() override;
 	void BeginFrame() override;
-	void InitLightmap(FLevelLocals* Level) override;
+	void InitLightmap(int LMTextureSize, int LMTextureCount, TArray<uint16_t>& LMTextureData) override;
 	void BlurScene(float amount) override;
 	void PostProcessScene(bool swscene, int fixedcm, float flash, const std::function<void()> &afterBloomDrawEndScene2D) override;
 	void AmbientOccludeScene(float m5) override;
diff --git a/src/maploader/maploader.cpp b/src/maploader/maploader.cpp
index 206734b677..6060ad6e05 100644
--- a/src/maploader/maploader.cpp
+++ b/src/maploader/maploader.cpp
@@ -3249,7 +3249,7 @@ void MapLoader::LoadLevel(MapData *map, const char *lumpname, int position)
 	Level->ClearDynamic3DFloorData();	// CreateVBO must be run on the plain 3D floor data.
 	CreateVBO(screen->mVertexData, Level->sectors);
 
-	screen->InitLightmap(Level);
+	screen->InitLightmap(Level->LMTextureSize, Level->LMTextureCount, Level->LMTextureData);
 
 	for (auto &sec : Level->sectors)
 	{