Fixed LW constant buffer precision

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/InputBuiltin.hlsl

 
 float4x4 unity_ObjectToWorld;
 float4x4 unity_WorldToObject;
-float4 unity_LODFade; // x is the fade value ranging within [0,1]. y is x quantized into 16 levels
+real4 unity_LODFade; // x is the fade value ranging within [0,1]. y is x quantized into 16 levels
-float4 unity_DynamicLightmapST;
-float4 unity_SHAr;
-float4 unity_SHAg;
-float4 unity_SHAb;
-float4 unity_SHBr;
-float4 unity_SHBg;
-float4 unity_SHBb;
-float4 unity_SHC;
-
-// x = Disabled(0)/Enabled(1)
-// y = Computation are done in global space(0) or local space(1)
-// z = Texel size on U texture coordinate
-float4 unity_ProbeVolumeParams;
-float4x4 unity_ProbeVolumeWorldToObject;
-float3 unity_ProbeVolumeSizeInv;
-float3 unity_ProbeVolumeMin;
+real4 unity_SHAr;
+real4 unity_SHAg;
+real4 unity_SHAb;
+real4 unity_SHBr;
+real4 unity_SHBg;
+real4 unity_SHBb;
+real4 unity_SHC;
-float4 unity_ProbesOcclusion;
+real4 unity_ProbesOcclusion;
-half4 unity_SpecCube0_HDR;
+real4 unity_SpecCube0_HDR;
-half4 unity_Lightmap_HDR;
+real4 unity_Lightmap_HDR;
-half4 unity_LightIndicesOffsetAndCount;
-half4 unity_4LightIndices0;
-half4 unity_4LightIndices1;
+real4 unity_LightIndicesOffsetAndCount;
+real4 unity_4LightIndices0;
+real4 unity_4LightIndices1;
 
 CBUFFER_END
 
 
 #if defined(USING_STEREO_MATRICES) && defined(UNITY_STEREO_MULTIVIEW_ENABLED)
 CBUFFER_START(UnityStereoEyeIndices)
-float4 unity_StereoEyeIndices[2];
+real4 unity_StereoEyeIndices[2];
 CBUFFER_END
 #endif
 
 // ----------------------------------------------------------------------------
 
 CBUFFER_START(UnityPerFrame)
-float4 glstate_lightmodel_ambient;
-float4 unity_AmbientSky;
-float4 unity_AmbientEquator;
-float4 unity_AmbientGround;
-float4 unity_IndirectSpecColor;
+real4 glstate_lightmodel_ambient;
+real4 unity_AmbientSky;
+real4 unity_AmbientEquator;
+real4 unity_AmbientGround;
+real4 unity_IndirectSpecColor;
-half4  unity_FogColor;
+real4  unity_FogColor;
 
 #if !defined(USING_STEREO_MATRICES)
 float4x4 glstate_matrix_projection;
 int unity_StereoEyeIndex;
 #endif
 
-float4 unity_ShadowColor;
+real4 unity_ShadowColor;
 CBUFFER_END
 
 // ----------------------------------------------------------------------------

ScriptableRenderPipeline/LightweightPipeline/LWRP/ShaderLibrary/InputSurface.hlsl

 #endif
 
 CBUFFER_START(UnityPerMaterial)
-half4 _MainTex_ST;
+float4 _MainTex_ST;
+half4 _SpecColor;
+half4 _EmissionColor;
-half4 _SpecColor;
-half4 _EmissionColor;
-TEXTURE2D(_MainTex); SAMPLER(sampler_MainTex);
-TEXTURE2D(_MetallicGlossMap); SAMPLER(sampler_MetallicGlossMap);
-TEXTURE2D(_SpecGlossMap); SAMPLER(sampler_SpecGlossMap);
-TEXTURE2D(_BumpMap); SAMPLER(sampler_BumpMap);
-TEXTURE2D(_OcclusionMap); SAMPLER(sampler_OcclusionMap);
-TEXTURE2D(_EmissionMap); SAMPLER(sampler_EmissionMap);
+TEXTURE2D(_MainTex);            SAMPLER(sampler_MainTex);
+TEXTURE2D(_MetallicGlossMap);   SAMPLER(sampler_MetallicGlossMap);
+TEXTURE2D(_SpecGlossMap);       SAMPLER(sampler_SpecGlossMap);
+TEXTURE2D(_BumpMap);            SAMPLER(sampler_BumpMap);
+TEXTURE2D(_OcclusionMap);       SAMPLER(sampler_OcclusionMap);
+TEXTURE2D(_EmissionMap);        SAMPLER(sampler_EmissionMap);
 
 // Must match Lightweigth ShaderGraph master node
 struct SurfaceData