VisualShaderNodeDerivativeFunc

const (
	// Sum of absolute derivative in x and y.
	FuncSum Function = 0
	// Derivative in x using local differencing.
	FuncX Function = 1
	// Derivative in y using local differencing.
	FuncY Function = 2
	// Represents the size of the [Function] enum.
	FuncMax Function = 3
)

const (
	// A floating-point scalar.
	OpTypeScalar OpType = 0
	// A 2D vector type.
	OpTypeVector2d OpType = 1
	// A 3D vector type.
	OpTypeVector3d OpType = 2
	// A 4D vector type.
	OpTypeVector4d OpType = 3
	// Represents the size of the [OpType] enum.
	OpTypeMax OpType = 4
)

const (
	// No precision is specified, the GPU driver is allowed to use whatever level of precision it chooses. This is the default option and is equivalent to using dFdx() or dFdy() in text shaders.
	PrecisionNone Precision = 0
	// The derivative will be calculated using the current fragment's neighbors (which may not include the current fragment). This tends to be faster than using [PrecisionFine], but may not be suitable when more precision is needed. This is equivalent to using dFdxCoarse() or dFdyCoarse() in text shaders.
	PrecisionCoarse Precision = 1
	// The derivative will be calculated using the current fragment and its immediate neighbors. This tends to be slower than using [PrecisionCoarse], but may be necessary when more precision is needed. This is equivalent to using dFdxFine() or dFdyFine() in text shaders.
	PrecisionFine Precision = 2
	// Represents the size of the [Precision] enum.
	PrecisionMax Precision = 3
)