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 Post subject: Frostbite DCT animation compression
PostPosted: Sun Jul 29, 2018 6:44 am 
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Does anyone know how DCT is applied to an animation?

I vaguely understand how it is applied to an image but this is a little confusing
Luckily i have access to the structures but still it doesnt make much sense

Code:
      public UInt16 QuantizeMultBlock;
      public UInt8 QuantizeMultSubblock;
      public UInt8 CatchAllBitCount;


      public FArray<UInt8> DofTableDescBytes; //No idea what this is but it matches the size of the delta's below

               //these are probably the coefficients (AC)
      public FArray<Int16> DeltaBaseX;
      public FArray<Int16> DeltaBaseY;
      public FArray<Int16> DeltaBaseZ;
      public FArray<Int16> DeltaBaseW;

               //no idea
      public FArray<UInt16> BitsPerSubblock;
      public UInt32 DataSize;

                //actual data
      public FArray<UInt8> Data;


I included a sample file and a 010 template


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