Also @Przemog1 you have those to do

In CascadeAccumulator.hlsl

• Move cascade_layer_scalar_type getLuma(NBL_CONST_REF_ARG(CascadeLayerType) col) to SplattingParameters HLSL path tracer example (new pr) #959 (comment)
• store rcpLog2Base and baseRootOfStart instead HLSL path tracer example (new pr) #959 (comment)
• make lowerCascadeIndex a uint16
• do all the computation using SplattingParameters::scalar_t and not cascade_layer_scalar_type here HLSL path tracer example (new pr) #959 (comment)
• declare a const LastCascade to use throughout the code HLSL path tracer example (new pr) #959 (comment)
• check you really need an initialization_data alias, imho not HLSL path tracer example (new pr) #959 (comment)
• make the weights same type as SplattingParameters::scalar_t HLSL path tracer example (new pr) #959 (comment)
• pull CascadeEntry outside of CascadeAccumulator rename to DefaultCascades and template it on CascadeLayerType,SampleCountType (defaulted to uint16) so its not a nested struct, then CascadeAccumulator gets only templated on CascadesType HLSL path tracer example (new pr) #959 (comment) -> rationale RWMC #936 (comment)
• require CascadesType has a clear(cascadeIx) HLSL path tracer example (new pr) #959

In resolve.hlsl

• make the ResolveAccessorBase concept more generic (actually its resolve params which should have calcLuma - and you're not checking for getters of the cascade samples!), need calc luma for more than RGB HLSL path tracer example (new pr) #959 (comment)
• make output_type have the correct number of components HLSL path tracer example (new pr) #959 (comment)
• template only on the CascadeAccessor and CascadeCount HLSL path tracer example (new pr) #959 (comment)

In ResolveParameters

• Change cascadeSize to cascadeCount and make it a template param so loops can be unrolled HLSL path tracer example (new pr) #959 (comment)
• Change computeResolveParameters to a static create factory HLSL path tracer example (new pr) #959 (comment)

Merged into branch path_tracer_leftover_cleanup (#991)