CSLib_DerivativeStatus.hxx File Reference

Enumerations
enum	CSLib_DerivativeStatus {   CSLib_Done , CSLib_D1uIsNull , CSLib_D1vIsNull , CSLib_D1IsNull ,   CSLib_D1uD1vRatioIsNull , CSLib_D1vD1uRatioIsNull , CSLib_D1uIsParallelD1v }
	Status of surface derivatives computation for normal calculation. More...

Enumeration Type Documentation

CSLib_DerivativeStatus

enum CSLib_DerivativeStatus

Status of surface derivatives computation for normal calculation.

Describes the result of attempting to compute a surface normal from the first derivatives D1U and D1V at a point on a surface.

Enumerator
CSLib_Done	Normal computed successfully.
CSLib_D1uIsNull	D1U has null length: ||D1U|| <= Resolution.
CSLib_D1vIsNull	D1V has null length: ||D1V|| <= Resolution.
CSLib_D1IsNull	Both derivatives are null.
CSLib_D1uD1vRatioIsNull	D1U is negligible: ||D1U|| / ||D1V|| <= RealEpsilon.
CSLib_D1vD1uRatioIsNull	D1V is negligible: ||D1V|| / ||D1U|| <= RealEpsilon.
CSLib_D1uIsParallelD1v	D1U and D1V are parallel.