On 3/12/2011 2:20 PM, Simon wrote:
I've done lots of 3d over the years and used quite a lot of different libraries and I've come to prefer code that makes a distinction between points and vectors.
Agreed. This has some nice benefits with operator overloading, as well:
vec v = ...;
pt p = ...;
auto p2 = p + v; // p2 is pt
auto p3 = p + p2; // error
auto v2 = v + v; // v2 is vec
...and with properties:
p.x = 5; // p is pt, sets p._vals[0]
v.dx = 3; // v is vec, sets v._vals[0]
