anchor.diff:          Id : int
           mutable AttributeScope : Ag.Scope
                   
  -        mutable IsActive   : IMod<bool>
  -        mutable RenderPass : uint64
  +        mutable IsActive            : IMod<bool>
  +        mutable RenderPass          : uint64
                   
  -        mutable DrawCallInfos : IMod<list<DrawCallInfo>>
  -        mutable Mode          : IMod<IndexedGeometryMode>
  -        mutable Surface       : IMod<ISurface>
  +        mutable DrawCallInfos       : IMod<list<DrawCallInfo>>
  +        mutable IndirectBuffer      : IMod<IBuffer>
  +        mutable IndirectCount       : IMod<int>
  +        mutable Mode                : IMod<IndexedGeometryMode>
  +        
  +
  +        mutable Surface             : IMod<ISurface>
                                 
  -        mutable DepthTest     : IMod<DepthTestMode>
  -        mutable CullMode      : IMod<CullMode>
  -        mutable BlendMode     : IMod<BlendMode>
  -        mutable FillMode      : IMod<FillMode>
  -        mutable StencilMode   : IMod<StencilMode>
  +        mutable DepthTest           : IMod<DepthTestMode>
  +        mutable CullMode            : IMod<CullMode>
  +        mutable BlendMode           : IMod<BlendMode>
  +        mutable FillMode            : IMod<FillMode>
  +        mutable StencilMode         : IMod<StencilMode>
                   
  -        mutable Indices            : IMod<Array>
  -        mutable InstanceAttributes : IAttributeProvider
  -        mutable VertexAttributes   : IAttributeProvider
  +        mutable Indices             : IMod<Array>
  +        mutable InstanceAttributes  : IAttributeProvider
  +        mutable VertexAttributes    : IAttributeProvider
                   
           mutable Uniforms : IUniformProvider
       }  
  
positive.code:           IsActive = null
            RenderPass = 0UL
            DrawCallInfos = null
            Mode = null
            Surface = null
            DepthTest = null
  
negative.code:           IsActive = null
            RenderPass = 0UL
            DrawCallInfos = null
            IndirectBuffer = null
            IndirectCount = null
  
            Mode = null
            Surface = null
            DepthTest = null
  