GLM_GTC_integer

Functions
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, int, Q >	iround (vec< L, T, Q > const &x)
template<typename genIUType >
GLM_FUNC_DECL genIUType	log2 (genIUType x)
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, uint, Q >	uround (vec< L, T, Q > const &x)

Detailed Description

Include <glm/gtc/integer.hpp> to use the features of this extension.

Allow to perform bit operations on integer values

Function Documentation

iround()

GLM_FUNC_DECL vec<L, int, Q> glm::iround

(

vec< L, T, Q > const &

x

)

Returns a value equal to the nearest integer to x.

The fraction 0.5 will round in a direction chosen by the implementation, presumably the direction that is fastest.

Parameters

x	The values of the argument must be greater or equal to zero.

Template Parameters

T	floating point scalar types.

See also

GLSL round man page

GLM_GTC_integer

log2()

GLM_FUNC_DECL genIUType glm::log2

(

genIUType

x

)

Returns the log2 of x for integer values.

Can be reliably using to compute mipmap count from the texture size.

See also

GLM_GTC_integer

uround()

GLM_FUNC_DECL vec<L, uint, Q> glm::uround

(

vec< L, T, Q > const &

x

)

Returns a value equal to the nearest integer to x.

The fraction 0.5 will round in a direction chosen by the implementation, presumably the direction that is fastest.

Parameters

x	The values of the argument must be greater or equal to zero.

Template Parameters

T	floating point scalar types.

See also

GLSL round man page

GLM_GTC_integer