#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 56 of file BKE_cryptomatte.hh.

Constructor & Destructor Documentation

◆ CryptomatteHash() [1/2]

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

Definition at line 524 of file cryptomatte.cc.

◆ CryptomatteHash() [2/2]

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

inline

Definition at line 60 of file BKE_cryptomatte.hh.

References BLI_hash_mm3(), and hash.

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 80 of file BKE_cryptomatte.hh.

References hash.

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 526 of file cryptomatte.cc.

References 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 533 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 57 of file BKE_cryptomatte.hh.

Referenced by 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