[HDRP][Path Tracing] Fixed PS5 build compilation warnings

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed issue with Stacklit raytrace reflection
 - Fixed various issues with using SSR lighting with IBL fallback for Lit shader with clear coat(case 1380351)
 - Fixed stackLit coat screen space reflection and raytrace reflection light hierarchy and IBL fallback
+- Fixed compilation errors from Path Tracing on the PS5 build.
 
 ### Changed
 - Optimizations for the physically based depth of field.

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/PathTracing/Shaders/PathTracingMain.raytrace

@@ -158,11 +158,11 @@ void RayGen()
     else // Orthographic projection
     {
         uint2 pixelResolution = DispatchRaysDimensions().xy;
-        float3 screenCoord = float3(2.0 * jitteredPixelCoord.x / pixelResolution.x - 1.0,
+        float4 screenCoord = float4(2.0 * jitteredPixelCoord.x / pixelResolution.x - 1.0,
                                     -2.0 * jitteredPixelCoord.y / pixelResolution.y + 1.0,
-                                    0.0);
+                                    0.0, 0.0);
 
-        ray.Origin = mul(_InvViewProjMatrix, screenCoord);
+        ray.Origin = mul(_InvViewProjMatrix, screenCoord).xyz;
         ray.Direction = cameraDirection;
     }