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.TH "al_set_shader_int_vector" "3alleg5" "" "Allegro reference manual" ""
.hy
.SH NAME
.PP
al_set_shader_int_vector - Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include <allegro5/allegro.h>

bool al_set_shader_int_vector(const char *name,
   int num_components, const int *i, int num_elems)
\f[R]
.fi
.SH DESCRIPTION
.PP
Sets an integer vector array uniform of the current target bitmap\[cq]s
shader.
The `num_components' parameter can take one of the values 1, 2, 3 or 4.
If it is 1 then an array of `num_elems' integer elements is added.
Otherwise each added array element is assumed to be a vector with 2, 3
or 4 components in it.
.PP
For example, if you have a GLSL uniform declared as
\f[C]uniform ivec3 flowers[4]\f[R] or an HLSL uniform declared as
\f[C]uniform int3 flowers[4]\f[R], then you\[cq]d use this function from
your code like so:
.IP
.nf
\f[C]
int flowers[4][3] =
{
   {1, 2, 3},
   {4, 5, 6},
   {7, 8, 9},
   {2, 5, 7}
};

al_set_shader_int_vector(\[dq]flowers\[dq], 3, (int*)flowers, 4);
\f[R]
.fi
.PP
Returns true on success.
Otherwise returns false, e.g.\ if the uniform by that name does not
exist in the shader.
.SH SINCE
.PP
5.1.0
.SH SEE ALSO
.PP
al_set_shader_float_vector(3alleg5), al_use_shader(3alleg5)