Fractal PingPong, simplified math

Auburn · Mar 2, 2025 · 6fd5b43 · 6fd5b43
1 parent c6abac2
commit 6fd5b43
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Showing 2 changed files with 8 additions and 8 deletions.
diff --git a/include/FastNoise/Generators/Fractal.inl b/include/FastNoise/Generators/Fractal.inl
@@ -84,19 +84,19 @@ class FastSIMD::DispatchClass<FastNoise::FractalPingPong, SIMD> final : public v
         float32v weightedStrength = this->GetSourceValue( mWeightedStrength, seed, pos... );
         float32v pingPongStrength = this->GetSourceValue( mPingPongStrength, seed, pos... );
         float32v lacunarity( mLacunarity );
-        float32v amp( mFractalBounding );
-        float32v noise = PingPong( (this->GetSourceValue( mSource, seed, pos... ) + float32v( 1 )) * pingPongStrength );
+        float32v amp( mFractalBounding * 2 );
+        float32v noise = PingPong( this->GetSourceValue( mSource, seed, pos... ) * pingPongStrength );
 
-        float32v sum = (noise - float32v( 0.5f )) * float32v( 2 ) * amp;
+        float32v sum = (noise - float32v( 0.5f )) * amp;
 
         for( int i = 1; i < mOctaves; i++ )
         {
             seed -= int32v( -1 );
             amp *= Lerp( float32v( 1 ), noise, weightedStrength );
             amp *= gain;
 
-            noise = PingPong( (this->GetSourceValue( mSource, seed, (pos *= lacunarity)... ) + float32v( 1 )) * pingPongStrength );
-            sum += (noise - float32v( 0.5f )) * float32v( 2 ) * amp;
+            noise = PingPong( (this->GetSourceValue( mSource, seed, (pos *= lacunarity)... )) * pingPongStrength );
+            sum += (noise - float32v( 0.5f )) * amp;
         }
 
         return sum;

diff --git a/src/FastNoise/Metadata.cpp b/src/FastNoise/Metadata.cpp
@@ -21,11 +21,11 @@ constexpr static std::nullptr_t gMetadataVectorSize = nullptr; // Invalid
 // Setting these values avoids needless vector resizing and oversizing on startup
 // Sadly there is no way to automate this as they fill up as part of static init
 template<>
-constexpr size_t gMetadataVectorSize<const Metadata*> = 44;
+constexpr size_t gMetadataVectorSize<const Metadata*> = 45;
 template<>
-constexpr size_t gMetadataVectorSize<const char*> = 88;
+constexpr size_t gMetadataVectorSize<const char*> = 87;
 template<>
-constexpr size_t gMetadataVectorSize<Metadata::MemberVariable> = 68;
+constexpr size_t gMetadataVectorSize<Metadata::MemberVariable> = 70;
 template<>
 constexpr size_t gMetadataVectorSize<Metadata::MemberNodeLookup> = 30;
 template<>