added more things to precompute

Author: keptsecret

include/nbl/builtin/hlsl/rwmc/CascadeAccumulator.hlsl

@@ -82,11 +82,7 @@ struct CascadeAccumulator
 
         // handle super bright sample case
         if (cascade > CascadeCount - 1)
-        {
-            const cascade_layer_scalar_type log2Base = cascade_layer_scalar_type(1.0) / splattingParameters.rcpLog2Base;
-            const cascade_layer_scalar_type log2Start = splattingParameters.baseRootOfStart * log2Base;
-            lowerCascadeWeight = exp2(log2Start + log2Base * (CascadeCount - 1) - log2Luma);
-        }
+            lowerCascadeWeight = exp2(splattingParameters.log2Start + splattingParameters.log2Base * (CascadeCount - 1) - log2Luma);
 
         accumulation.addSampleIntoCascadeEntry(_sample, lowerCascadeIndex, lowerCascadeWeight, higherCascadeWeight, sampleCount);
     }

include/nbl/builtin/hlsl/rwmc/SplattingParameters.hlsl

@@ -18,11 +18,15 @@ struct SplattingParameters
     static SplattingParameters create(const scalar_t base, const scalar_t start)
     {
         SplattingParameters retval;
-        retval.rcpLog2Base = scalar_t(1.0) / hlsl::log2(base);
-        retval.baseRootOfStart = hlsl::log2(start) * retval.rcpLog2Base;
+        retval.log2Base = hlsl::log2(base);
+        retval.log2Start = hlsl::log2(start);
+        retval.rcpLog2Base = scalar_t(1.0) / retval.log2Base;
+        retval.baseRootOfStart = retval.log2Start * retval.rcpLog2Base;
         return retval;
     }
-   
+
+    scalar_t log2Base;
+    scalar_t log2Start;
     scalar_t baseRootOfStart;
     scalar_t rcpLog2Base;
 };