diff --git a/include/services/y2r.hpp b/include/services/y2r.hpp
index 963199fc..fc21fc12 100644
--- a/include/services/y2r.hpp
+++ b/include/services/y2r.hpp
@@ -75,6 +75,7 @@ class Y2RService {
 	void setInputLineWidth(u32 messagePointer);
 	void setInputLines(u32 messagePointer);
 	void setOutputFormat(u32 messagePointer);
+	void setPackageParameter(u32 messagePointer);
 	void setReceiving(u32 messagePointer);
 	void setRotation(u32 messagePointer);
 	void setSendingY(u32 messagePointer);
diff --git a/src/core/services/y2r.cpp b/src/core/services/y2r.cpp
index 44b7c6ea..7d6e4c41 100644
--- a/src/core/services/y2r.cpp
+++ b/src/core/services/y2r.cpp
@@ -23,6 +23,7 @@ namespace Y2RCommands {
 		StartConversion = 0x00260000,
 		StopConversion = 0x00270000,
 		IsBusyConversion = 0x00280000,
+		SetPackageParameter = 0x002901C0,
 		PingProcess = 0x002A0000,
 		DriverInitialize = 0x002B0000,
 		DriverFinalize = 0x002C0000
@@ -60,6 +61,7 @@ void Y2RService::handleSyncRequest(u32 messagePointer) {
 		case Y2RCommands::SetInputLineWidth: setInputLineWidth(messagePointer); break;
 		case Y2RCommands::SetInputLines: setInputLines(messagePointer); break;
 		case Y2RCommands::SetOutputFormat: setOutputFormat(messagePointer); break;
+		case Y2RCommands::SetPackageParameter: setPackageParameter(messagePointer); break;
 		case Y2RCommands::SetReceiving: setReceiving(messagePointer); break;
 		case Y2RCommands::SetRotation: setRotation(messagePointer); break;
 		case Y2RCommands::SetSendingY: setSendingY(messagePointer); break;
@@ -176,6 +178,17 @@ void Y2RService::setOutputFormat(u32 messagePointer) {
 	mem.write32(messagePointer + 4, Result::Success);
 }
 
+void Y2RService::setPackageParameter(u32 messagePointer) {
+	// Package parameter is 3 words
+	const u32 word1 = mem.read32(messagePointer + 4);
+	const u32 word2 = mem.read32(messagePointer + 8);
+	const u32 word3 = mem.read32(messagePointer + 12);
+	Helpers::warn("Y2R::SetPackageParameter\n");
+
+	mem.write32(messagePointer, IPC::responseHeader(0x29, 1, 0));
+	mem.write32(messagePointer + 4, Result::Success);
+}
+
 void Y2RService::setRotation(u32 messagePointer) {
 	const u32 rot = mem.read32(messagePointer + 4);
 	log("Y2R::SetRotation (format = %d)\n", rot);
diff --git a/src/host_shaders/opengl_fragment_shader.frag b/src/host_shaders/opengl_fragment_shader.frag
index 5b6e6830..3f1a256b 100644
--- a/src/host_shaders/opengl_fragment_shader.frag
+++ b/src/host_shaders/opengl_fragment_shader.frag
@@ -232,8 +232,8 @@ void calcLighting(out vec4 primary_color, out vec4 secondary_color) {
 
 		// Positional Light
 		if (bitfieldExtract(GPUREG_LIGHTi_CONFIG, 0, 1) == 0) {
-			error_unimpl = true;
-			// half_vector = normalize(normalize(light_vector + v_view) + view);
+			// error_unimpl = true;
+			half_vector = normalize(normalize(light_vector + v_view) + view);
 		}
 
 		// Directional light
@@ -328,7 +328,7 @@ void calcLighting(out vec4 primary_color, out vec4 secondary_color) {
 	if (fresnel_output2 == 1u) secondary_color.a = d[FR_LUT];
 
 	if (error_unimpl) {
-		secondary_color = primary_color = vec4(1.0, 0., 1.0, 1.0);
+		// secondary_color = primary_color = vec4(1.0, 0., 1.0, 1.0);
 	}
 }