fix: fix bad rendering with bDepthBufferCulling

With bDepthBufferCulling enabled, culling is incorrect if diskcache is
on until ShaderCache is cleared. This is a stopgap until root cause is
identified.

src/Features/VolumetricLighting.cpp

@@ -1,4 +1,5 @@
 #include "VolumetricLighting.h"
+#include "ShaderCache.h"
 #include "State.h"
 #include "Util.h"
 
@@ -51,6 +52,15 @@ void VolumetricLighting::RestoreDefaultSettings()
 
 void VolumetricLighting::DataLoaded()
 {
+	auto& shaderCache = SIE::ShaderCache::Instance();
+	const static auto address = REL::Offset{ 0x1ec6b88 }.address();
+	bool& bDepthBufferCulling = *reinterpret_cast<bool*>(address);
+
+	if (REL::Module::IsVR() && bDepthBufferCulling && shaderCache.IsDiskCache()) {
+		// clear cache to fix bug caused by bDepthBufferCulling
+		logger::info("Force clearing cache due to bDepthBufferCulling");
+		shaderCache.Clear();
+	}
 }
 
 void VolumetricLighting::PostPostLoad()