.\" Automatically generated by Pandoc 3.5
.\"
.TH "al_build_shader" "3" "" "Allegro reference manual"
.SH NAME
al_build_shader \- Allegro 5 API
.SH SYNOPSIS
.IP
.EX
#include \f[B]<allegro5/allegro.h>\f[R]

bool al_build_shader(ALLEGRO_SHADER *shader)
.EE
.SH DESCRIPTION
This is required before the shader can be used with al_use_shader(3).
It should be called after successfully attaching the pixel and/or vertex
shaders with al_attach_shader_source(3) or
al_attach_shader_source_file(3).
.PP
Returns true on success and false on error, in which case the error log
is updated.
The error log can be retrieved with al_get_shader_log(3).
.RS
.PP
\f[I]Note:\f[R] If you are using the ALLEGRO_PROGRAMMABLE_PIPELINE flag,
then you must specify both a pixel and a vertex shader sources for
anything to be rendered.
.RE
.SH SINCE
5.1.6
.SH SEE ALSO
al_use_shader(3), al_get_shader_log(3)