Am 22.01.2011 22:58, schrieb stbenge:

> A speed enhancement can be used to cut the render time down
> significantly, with an arguably acceptable loss of accuracy. Under this
> setup, two instances of the same object are used. One copy is visible,
> uses blurred reflection, and has a no_reflection modifier applied to it.
> The other copy uses non-blurred reflection, but with a no_image modifier
> applied.

I'd suggest a minor modification to this approach: For the no_image 
version, do use the same normals pertubation as for the no_reflection 
version, except that only a single layer is used.


The downside of your approach is of course that it won't work well with 
a mix of both blurred and non-blurred surfaces in the same scene, e.g. a 
dull brass figure in front of a mirror.

Post a reply to this message