Save another instruction on clipping on PS4

Assets/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.hlsl

     // Static branch.
     if (lightType == GPULIGHTTYPE_PROJECTOR_BOX)
     {
-        // bool  isInBounds = max(abs(positionNDC.x), abs(positionNDC.y)) <= 1 && positionLS.z >= 0;
-        // float clipFactor = isInBounds ? 1 : 0;
-        // This version is slightly more efficient:
-        float clipFactor = saturate(FLT_MAX - FLT_MAX * Max3(abs(positionNDC.x), abs(positionNDC.y), positionLS.z >= 0 ? 0 : 1));
+        bool isInBounds = Max3(abs(positionNDC.x), abs(positionNDC.y), 1 - positionLS.z) <= 1;
+        clipFactor = isInBounds ? 1 : 0;
     }
 
     float attenuation = clipFactor;
         {
             // Compute the NDC position (in [-1, 1]^2) by projecting 'positionWS' onto the plane at 1m distance.
             // Box projector lights require no perspective division.
-            float perspectiveZ = (lightType != GPULIGHTTYPE_PROJECTOR_BOX) ? positionLS.z : 1;
-            float2 positionNDC = positionLS.xy / perspectiveZ;
-            // bool  isInBounds = max(abs(positionNDC.x), abs(positionNDC.y)) <= 1 && positionLS.z >= 0;
-            // float clipFactor = isInBounds ? 1 : 0;
-            // This version is slightly more efficient:
-            float clipFactor = saturate(FLT_MAX - FLT_MAX * Max3(abs(positionNDC.x), abs(positionNDC.y), positionLS.z >= 0 ? 0 : 1));
+            float  perspectiveZ = (lightType != GPULIGHTTYPE_PROJECTOR_BOX) ? positionLS.z : 1;
+            float2 positionNDC  = positionLS.xy / perspectiveZ;
+            bool   isInBounds   = Max3(abs(positionNDC.x), abs(positionNDC.y), 1 - positionLS.z) <= 1;
+            float  clipFactor   = isInBounds ? 1 : 0;
 
             // Remap the texture coordinates from [-1, 1]^2 to [0, 1]^2.
             float2 coord = positionNDC * 0.5 + 0.5;