7 Jul
2014
7 Jul
'14
5:29 p.m.
On Mon, Jul 07, 2014 at 06:17:11PM +0200, Tobias Oelgarte wrote:
- A randomly sampled blur could be much more efficient in such cases.
Taking the median of high enough number of pseudo random samples could be a good way if we have very large blur areas. It would result in some noise, but should have constant speed at all zoom levels. (Comparable to depth blur in unbiased renderers)
Neat idea. This would have pretty bad cache coherence though, I think. Also, why median rather than mean?
- A Gaussian blur that works on a lower resolution (1/2^n) source
depending on the effective blur radius. (Comparable to Mipmapping)
Without care you'll end up with annoying box artifacts.
njh