fix(dynamic cubemap): blend native cubemap fallback

features/Dynamic Cubemaps/Shaders/DynamicCubemaps/InferCubemapCS.hlsl

@@ -90,7 +90,8 @@ float3 GetSamplingVector(uint3 ThreadID, in RWTexture2DArray<float4> OutputTextu
 	}
 
 #if defined(REFLECTIONS)
-	color.rgb = lerp(color.rgb, Color::IrradianceToLinear(ReflectionsTexture.SampleLevel(LinearSampler, uv, 0.0).rgb), saturate(mipLevel / 7.0));
+	float fallbackWeight = saturate(mipLevel / 7.0) * SharedData::cubemapCreatorSettings.ReflectionFallbackAmount;
+	color.rgb = lerp(color.rgb, Color::IrradianceToLinear(ReflectionsTexture.SampleLevel(LinearSampler, uv, 0.0).rgb), fallbackWeight);
 #else
 	color.rgb = lerp(color.rgb, color.rgb * DefaultCubemap.SampleLevel(LinearSampler, uv, 0.0).xyz, saturate(mipLevel / 7.0));
 #endif

features/Dynamic Cubemaps/Shaders/Features/DynamicCubemaps.ini

@@ -1,5 +1,5 @@
 [Info]
-Version = 2-3-1
+Version = 2-3-2
 
 [Nexus]
 autoupload = false

package/Shaders/Common/SharedData.hlsli

@@ -60,9 +60,13 @@ namespace SharedData
 	struct CubemapCreatorSettings
 	{
 		uint Enabled;
-		float3 pad0;
+		uint EnabledSSR;
+		float2 pad0;
 
 		float4 CubemapColor;
+
+		float ReflectionFallbackAmount;
+		float3 pad1;
 	};
 
 	struct TerraOccSettings

src/Features/DynamicCubemaps.cpp

@@ -12,7 +12,8 @@ constexpr auto MIPLEVELS = 8;
 NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(
 	DynamicCubemaps::Settings,
 	EnabledSSR,
-	EnabledCreator);
+	EnabledCreator,
+	ReflectionFallbackAmount);
 
 std::vector<std::pair<std::string_view, std::string_view>> DynamicCubemaps::GetShaderDefineOptions()
 {
@@ -26,6 +27,14 @@ std::vector<std::pair<std::string_view, std::string_view>> DynamicCubemaps::GetS
 
 void DynamicCubemaps::DrawSettings()
 {
+	if (ImGui::TreeNodeEx("Native Cubemap Fallback", ImGuiTreeNodeFlags_DefaultOpen)) {
+		ImGui::SliderFloat("Fallback Amount", &settings.ReflectionFallbackAmount, kReflectionFallbackMin, kReflectionFallbackMax, "%.2f", ImGuiSliderFlags_AlwaysClamp);
+		if (auto _tt = Util::HoverTooltipWrapper()) {
+			ImGui::Text("Controls how much the game's reflection cubemap fills missing dynamic reflection directions.");
+		}
+		ImGui::TreePop();
+	}
+
 	if (ImGui::TreeNodeEx("Screen Space Reflections", ImGuiTreeNodeFlags_DefaultOpen)) {
 		recompileFlag |= ImGui::Checkbox("Enable Screen Space Reflections", reinterpret_cast<bool*>(&settings.EnabledSSR));
 		if (auto _tt = Util::HoverTooltipWrapper()) {
@@ -131,6 +140,7 @@ void DynamicCubemaps::DrawSettings()
 void DynamicCubemaps::LoadSettings(json& o_json)
 {
 	settings = o_json;
+	settings.ReflectionFallbackAmount = std::clamp(settings.ReflectionFallbackAmount, kReflectionFallbackMin, kReflectionFallbackMax);
 	if (REL::Module::IsVR()) {
 		Util::LoadGameSettings(iniVRCubeMapSettings);
 	}

src/Features/DynamicCubemaps.h

@@ -12,6 +12,10 @@ class MenuOpenCloseEventHandler : public RE::BSTEventSink<RE::MenuOpenCloseEvent
 struct DynamicCubemaps : Feature
 {
 public:
+	static constexpr float kReflectionFallbackMin = 0.0f;
+	static constexpr float kReflectionFallbackMax = 1.0f;
+	static constexpr float kReflectionFallbackDefault = 0.5f;
+
 	const std::string defaultDynamicCubeMapSavePath = "Data\\textures\\DynamicCubemaps";
 
 	// Specular irradiance
@@ -116,7 +120,10 @@ struct DynamicCubemaps : Feature
 		uint EnabledSSR = true;
 		uint pad0[2];
 		float4 CubemapColor{ 1.0f, 1.0f, 1.0f, 0.0f };
+		float ReflectionFallbackAmount = kReflectionFallbackDefault;
+		float pad1[3];
 	};
+	STATIC_ASSERT_ALIGNAS_16(Settings);
 
 	Settings settings;
 	bool enabledAtBoot = false;