Moved SurfaceData to InputSrufaceCommon.

Merged CBs for particles.

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/InputSurfaceCommon.hlsl

 #include "Core.hlsl"
 #include "CoreRP/ShaderLibrary/Packing.hlsl"
 #include "CoreRP/ShaderLibrary/CommonMaterial.hlsl"
-#include "SurfaceData.hlsl"
+
+// Must match Lightweigth ShaderGraph master node
+struct SurfaceData
+{
+    half3 albedo;
+    half3 specular;
+    half  metallic;
+    half  smoothness;
+    half3 normalTS;
+    half3 emission;
+    half  occlusion;
+    half  alpha;
+};
 
 ///////////////////////////////////////////////////////////////////////////////
 //                      Material Property Helpers                            //

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/InputSurfacePBR.hlsl

-#ifndef LIGHTWEIGHT_INPUT_SURFACE_PBS_INCLUDED
-#define LIGHTWEIGHT_INPUT_SURFACE_PBS_INCLUDED
+#ifndef LIGHTWEIGHT_INPUT_SURFACE_PBR_INCLUDED
+#define LIGHTWEIGHT_INPUT_SURFACE_PBR_INCLUDED
 
 #include "Core.hlsl"
 
     outSurfaceData.alpha = Alpha(albedoAlpha.a);
 }
 
-#endif // LIGHTWEIGHT_INPUT_SURFACE_PBS_INCLUDED
+#endif // LIGHTWEIGHT_INPUT_SURFACE_PBR_INCLUDED

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/Particles.hlsl

 #include "Core.hlsl"
 #include "CoreRP/ShaderLibrary/Color.hlsl"
 
-CBUFFER_START(UnityPerMaterial_Particle)
+CBUFFER_START(UnityPerMaterial)
 float4 _SoftParticleFadeParams;
 float4 _CameraFadeParams;
 float4 _MainTex_ST;
 
 half _Cutoff;
 half _Shininess;
+half _Metallic;
+half _Glossiness;
-TEXTURE2D(_MainTex);            SAMPLER(sampler_MainTex);
+#include "InputSurfaceCommon.hlsl"
 
 TEXTURE2D(_CameraDepthTexture);
 SAMPLER(sampler_CameraDepthTexture);
     return specularGloss;
 }
 
-half AlphaBlendAndTest(half alpha)
+half AlphaBlendAndTest(half alpha, half cutoff)
 {
 #if defined(_ALPHABLEND_ON) || defined(_ALPHAPREMULTIPLY_ON) || defined(_ALPHAOVERLAY_ON)
     half result = alpha;
-    AlphaDiscard(result, (half)_Cutoff, 0.0001h);
+    AlphaDiscard(result, cutoff, 0.0001h);
 
     return result;
 }

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/ParticlesPBR.hlsl

-#ifndef LIGHTWEIGHT_PARTICLES_PBS_INCLUDED
-#define LIGHTWEIGHT_PARTICLES_PBS_INCLUDED
+#ifndef LIGHTWEIGHT_PARTICLES_PBR_INCLUDED
+#define LIGHTWEIGHT_PARTICLES_PBR_INCLUDED
-#include "SurfaceData.hlsl"
-
-CBUFFER_START(UnityPerMaterial_ParticlePBS)
-half _Metallic;
-half _Glossiness;
-CBUFFER_END
 
 void InitializeSurfaceData(VertexOutputLit IN, out SurfaceData surfaceData)
 {
     surfaceData.smoothness = metallicGloss.g;
     surfaceData.occlusion = 1.0;
 
-    surfaceData.alpha = AlphaBlendAndTest(albedo.a);
+    surfaceData.alpha = AlphaBlendAndTest(albedo.a, _Cutoff);
-#endif // LIGHTWEIGHT_PARTICLES_PBS_INCLUDED
+#endif // LIGHTWEIGHT_PARTICLES_PBR_INCLUDED

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/LightweightStandardParticlesSimpleLighting.shader

             half4 ParticlesLitFragment(VertexOutputLit IN) : SV_Target
             {
                 half4 albedo = Albedo(IN);
-                half alpha = AlphaBlendAndTest(albedo.a);
+                half alpha = AlphaBlendAndTest(albedo.a, _Cutoff);
                 half3 diffuse = AlphaModulate(albedo.rgb, alpha);
                 half3 normalTS = NormalTS(IN);
                 half3 emission = Emission(IN);

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/LightweightStandardParticlesUnlit.shader

                 half4 fragParticleUnlit(VertexOutputLit IN) : SV_Target
                 {
                     half4 albedo = Albedo(IN);
-                    half alpha = AlphaBlendAndTest(albedo.a);
+                    half alpha = AlphaBlendAndTest(albedo.a, _Cutoff);
                     half3 emission = Emission(IN);
                     half3 diffuse = AlphaModulate(albedo.rgb, alpha);
 

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/SurfaceData.hlsl

-#ifndef LIGHTWEIGHT_SURFACE_DATA_INCLUDED
-#define LIGHTWEIGHT_SURFACE_DATA_INCLUDED
-
-// Must match Lightweigth ShaderGraph master node
-struct SurfaceData
-{
-    half3 albedo;
-    half3 specular;
-    half  metallic;
-    half  smoothness;
-    half3 normalTS;
-    half3 emission;
-    half  occlusion;
-    half  alpha;
-};
-
-#endif // LIGHTWEIGHT_SURFACE_DATA_INCLUDED

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/SurfaceData.hlsl.meta

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