is it z-buffer based gaussian blur?
My algorithm is based on z-buffer but this is not typical blur. With normal blurring methods it is nearly impossible to render DOF effect on first image plane. On the edges of near objects it have to blur only nearest object without blurring background. I used something like "reverse blur". In normal blur method we can use for example convolution matrix. Actual point is computed as a weighted sum of adjacent pixels.
In my method z-buffer is sorted form the farthest pixels to the nearest. Next starting form the farthest pixels, each actual pixel is spread to adjacent pixels with proper opacity, according to blur strength and distance form centre pixel. Final effect is nice and rendering is not so slow but now I don't have idea how to use multiple CPUs for rendering this effect. Pixels has to be rendered in proper order and in this case it is difficult to divide operations for many threads.
July 04, 2012, 07:49:05 AM
Dilber MC Theme by HarzeM