Building:

rebar compile



Example usage:


1> erlglm:mat4().
{1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,
 0.0,1.0}


1> erlglm:lookat({0.0,10.0,10.0}, {0.0,0.0,0.0}, {0.0,1.0,0.0}).
{1.0,0.0,0.0,0.0,0.0,0.7071067811865475,0.7071067811865475,
 0.0,0.0,-0.7071067811865475,0.7071067811865475,0.0,0.0,0.0,
 -14.14213562373095,1.0} 


1> erlglm:perspective(45.0, 4.0/3.0, 0.1, 100.0).
{1.344443240189478,0.0,0.0,0.0,0.0,1.792590986919304,0.0,
 0.0,0.0,0.0,-1.002002002002002,-1.0,0.0,0.0,
 -0.20020020020020018,0.0}


1> erlglm:translate(10.0,0.0,0.0).                 
{1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,10.0,0.0,
 0.0,1.0}


1> erlglm:rotate(erlglm:translate(10.0, 0.0, 0.0), 12.5, {0.0,1.0,0.0}).
{0.9977982791785807,0.0,0.06632189735120068,0.0,0.0,1.0,0.0,
 0.0,-0.06632189735120068,0.0,0.9977982791785807,0.0,10.0,
 0.0,0.0,1.0}