1+2-3
3.14*0.1/(0.45-0.1)
atan(sin(1.5)/cos(-1.5))
sinh(0.123)*cosh(0.9321)/atanh(-0.4)
pow(2.0, log2(128.5))
exp(log(15.))
sqrt(pow(cos(0.72), 2.0) + pow(sin(0.72), 2.0))
mod(12, 5)
0xabc&0xffff^1234
dot(vec3(1,0,2), vec3(3,4,5))
gl_MaxTextureImageUnits