0.9.9 API documenation
Functions
GLM_GTC_integer

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

Functions

template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, int, Q > iround (vec< L, T, Q > const &x)
 Returns a value equal to the nearest integer to x. More...
 
template<typename genIUType >
GLM_FUNC_DECL genIUType log2 (genIUType x)
 Returns the log2 of x for integer values. More...
 
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, uint, Q > uround (vec< L, T, Q > const &x)
 Returns a value equal to the nearest integer to x. More...
 

Detailed Description

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

Allow to perform bit operations on integer values

Function Documentation

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
xThe values of the argument must be greater or equal to zero.
Template Parameters
Tfloating point scalar types.
See also
GLSL round man page
GLM_GTC_integer
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
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
xThe values of the argument must be greater or equal to zero.
Template Parameters
Tfloating point scalar types.
See also
GLSL round man page
GLM_GTC_integer