[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Public WebGL] Matrix objects in JavaScript

On 3/21/13 12:43 PM, Benoit Jacob wrote:
Even 4x4 matrix inversion is just 200 cycles with SSE1 on a Pentium III,
certainly less on a modern CPU:

So the overhead of DOM API calls will be at least significant for matrix
inversion and definitely dominant for the cheaper operations.

Just for scale, the overhead of a DOM API call with no arguments is on the order of 20-30 CPU cycles in modern browsers, as far as I can tell. If you have arguments, obviously there's more work; figure another 20-30 CPU cycles per argument...


----------------------------------------------------------- You are currently subscribed to public_webgl@khronos.org. To unsubscribe, send an email to majordomo@khronos.org with the following command in the body of your email: unsubscribe public_webgl -----------------------------------------------------------