wip fix lens flare, geom coord is ok, occlusion is not

Assets/Scripts/LensFlare/Shader/LensFlareHDRPAdditive.shader

             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"
 			#include "LensFlareHDRPCommon.hlsl"
 
+            #pragma multi_compile __ USING_GLOBAL_SCREEN_SPACE
+			
 			float4 frag (v2f i) : SV_Target
 			{
 				float4 col = tex2D(_MainTex, i.uv);

Assets/Scripts/LensFlare/Shader/LensFlareHDRPCommon.hlsl

+#include "Packages\com.unity.render-pipelines.high-definition\Runtime\ShaderLibrary\GlobalScreenSpace.hlsl"
+
 struct appdata
 {
 	float4 vertex : POSITION;
 
 	float4 extent = TransformWorldToHClip(GetCameraRelativePositionWS(v.worldPosRadius.xyz + cameraUp * v.worldPosRadius.w));
 
-	float2 screenPos = clip.xy / clip.w;
+    float2 screenPosLocal = clip.xy / clip.w;
+	float2 screenPos = CLIP_SPACE_GLOBAL(screenPosLocal);
-	float occlusion = GetOcclusion(screenPos, depth - v.worldPosRadius.w, radius, ratio);
+	float occlusion = GetOcclusion(screenPosLocal, depth - v.worldPosRadius.w, radius, ratio);
 
 	// Distance Fade
 	float4 d = v.lensflare_fadeData;
 
 	float2 rayOffset = -screenPos * v.lensflare_data.x;
 	o.vertex.w = v.vertex.w;
-	o.vertex.xy = screenPos + local + rayOffset;
+	o.vertex.xy = CLIP_SPACE_LOCAL(screenPos + local + rayOffset);
-	o.color = v.color * occlusion * distanceFade * saturate(length(screenPos * 2));
+	o.color = v.color;// * occlusion * distanceFade * saturate(length(screenPos * 2));
 	return o;
 }

Assets/Scripts/LensFlare/Shader/LensFlareHDRPLerp.shader

             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"
 			#include "LensFlareHDRPCommon.hlsl"
 
+            #pragma multi_compile __ USING_GLOBAL_SCREEN_SPACE
+			
 			float4 frag (v2f i) : SV_Target
 			{
 				float4 col = tex2D(_MainTex, i.uv);

Assets/Scripts/LensFlare/Shader/LensFlareHDRPPremultiplied.shader

             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"
 			#include "LensFlareHDRPCommon.hlsl"
 
+            #pragma multi_compile __ USING_GLOBAL_SCREEN_SPACE
+			
-				return col * i.color;
+				return i.color;
 			}
 
 			ENDHLSL