#include <BKE_cryptomatte.hh>

Public Member Functions
	CryptomatteHash (uint32_t hash)
	CryptomatteHash (const char *name, int name_len)
std::string	hex_encoded () const
float	float_encoded () const

Static Public Member Functions
static CryptomatteHash	from_hex_encoded (blender::StringRef hex_encoded)

Public Attributes
uint32_t	hash

Detailed Description

Definition at line 53 of file BKE_cryptomatte.hh.

Constructor & Destructor Documentation

◆ CryptomatteHash() [1/2]

blender::bke::cryptomatte::CryptomatteHash::CryptomatteHash ( uint32_t hash )

Definition at line 543 of file cryptomatte.cc.

References hash.

Referenced by from_hex_encoded().

◆ CryptomatteHash() [2/2]

blender::bke::cryptomatte::CryptomatteHash::CryptomatteHash	(	const char *	name,
		int	name_len )

inline

Definition at line 57 of file BKE_cryptomatte.hh.

References BLI_hash_mm3(), hash, and name.

Member Function Documentation

◆ float_encoded()

float blender::bke::cryptomatte::CryptomatteHash::float_encoded ( ) const

inline

Convert a cryptomatte hash to a float.

Cryptomatte hashes are stored in float textures and images. The conversion is taken from the cryptomatte specification. See Floating point conversion section in https://github.com/Psyop/Cryptomatte/blob/master/specification/cryptomatte_specification.pdf.

The conversion uses as many 32 bit floating point values as possible to minimize hash collisions. Unfortunately not all 32 bits can be used as NaN and Inf can be problematic.

Note that this conversion assumes to be running on a L-endian system.

Definition at line 77 of file BKE_cryptomatte.hh.

References hash, and sign().

Referenced by BKE_cryptomatte_hash_to_float().

◆ from_hex_encoded()

CryptomatteHash blender::bke::cryptomatte::CryptomatteHash::from_hex_encoded ( blender::StringRef hex_encoded )

static

Definition at line 545 of file cryptomatte.cc.

References CryptomatteHash(), hex_encoded(), and result.

Referenced by blender::bke::cryptomatte::manifest::from_manifest().

◆ hex_encoded()

std::string blender::bke::cryptomatte::CryptomatteHash::hex_encoded ( ) const

Definition at line 552 of file cryptomatte.cc.

References hash.

Referenced by from_hex_encoded().

Member Data Documentation

◆ hash

uint32_t blender::bke::cryptomatte::CryptomatteHash::hash

Definition at line 54 of file BKE_cryptomatte.hh.

Referenced by CryptomatteHash(), CryptomatteHash(), float_encoded(), and hex_encoded().

The documentation for this struct was generated from the following files:

Public Member Functions

Static Public Member Functions

Public Attributes