> As for principal of least surprise, lots of libraries op
> for using array-wise * and v.dot(v), including (IIRC) all of the various
> GPU shading/compute languages.
In GLSL, vector * vector is component-wise
but matrix * vector is not
matrix * matrix is not,
and it feels very natural.
In HLSL, * is always component-wise and you have to use mul(a, b) to use the
product... I don't buy it.
Gareth is right, element-wise multiplication for matrices is near to useless,
whereas it's handy for vectors.
