Rename 'camera' to 'view' (where applicable) for clarity

Assets/ScriptableRenderPipeline/HDRenderPipeline/ShaderVariablesFunctions.hlsl

     return pos;
 }
 
-// Returns the position of the primary (scene view) camera.
 // Note: '_WorldSpaceCameraPos' is set by the legacy Unity code.
 float3 GetPrimaryCameraPosition()
 {
-float3 GetCurrentCameraPosition()
+// Could be e.g. the position of a primary camera or a shadow-casting light.
+float3 GetCurrentViewPosition()
 {
 #if defined(SHADERPASS) && (SHADERPASS != SHADERPASS_SHADOWS)
     return GetPrimaryCameraPosition();
 #endif
 }
 
-// Returns the forward direction of the current camera in the world space.
-float3 GetCameraForwardDir()
+// Returns the forward (central) direction of the current view in the world space.
+float3 GetViewForwardDir()
-// Returns 'true' if the current camera performs a perspective projection.
-bool IsPerspectiveCamera()
+// Returns 'true' if the current view performs a perspective projection.
+bool IsPerspectiveProjection()
 {
 #if defined(SHADERPASS) && (SHADERPASS != SHADERPASS_SHADOWS)
     return (unity_OrthoParams.w == 0);
 #endif
 }
 
-// Computes the world space view direction (pointing towards the camera).
+// Computes the world space view direction (pointing towards the viewer).
-    if (IsPerspectiveCamera())
+    if (IsPerspectiveProjection())
-        float3 V = GetCurrentCameraPosition() - positionWS;
+        float3 V = GetCurrentViewPosition() - positionWS;
-        return -GetCameraForwardDir();
+        return -GetViewForwardDir();
     }
 }