Adaptive region rendering (not a make-maxwell-biased thing!)
Posted: Sat May 07, 2005 5:39 pm
Hi!
I've been rendering dielectrics test lately, and, thanks to the way maxwell works, I found that after several hours of computing, most of my images were quite noiseless, except for example the caustics, which was still kinda ugly compared to the rest of the picture.
Here, came a simple question: why cant maxwell focus my cpu power on the areas, that are still noisy, and leave the other pixels alone.
So, I started painting bitmaps, to manually control my render to fucus on the caustics, and reached the required clearness in just a small portion of the time I wasted when I was waiting for the whole image to refine.
So, now, I've got some parts that were at level 13 sampling, and some, that were at lvl 20. Combined the two in PS, and got a qite nice, and, imo, still unbiased solution, in quite a reasonable time.
It would be nice, to have this whole process automated, for example, a min, and max sampling level, and a noise threshold spinner. If a given region is good eneugh, maxwell would simply leave that part alone, like it does with a bitmap region rendering, and continue to work on the noisy parts, until they are noisless, or until the max sampling level is reached. Noise thresh could also terminate a render, if every pixel is good eneugh. (also, at different sampling levels) I dont know, if this is possible, but sure sounds good to me.
Dont get me wrong, if this is a sloppy pathway down to the hell of biased solutions, than forget every word I've said.
) I like the noise, I just want a more balanced solution. The noise imo is like working on film, instead of a digital ccd, got more life in it... before maxwell came, I spent long times trying to make a nice, organic gainy look,like now maxwell does.
And, of coure, if this was posted befiore, and so, I've said nothing.
A.
(edited some spelling mistakes, and sorry for my bad english...)
I've been rendering dielectrics test lately, and, thanks to the way maxwell works, I found that after several hours of computing, most of my images were quite noiseless, except for example the caustics, which was still kinda ugly compared to the rest of the picture.
Here, came a simple question: why cant maxwell focus my cpu power on the areas, that are still noisy, and leave the other pixels alone.
So, I started painting bitmaps, to manually control my render to fucus on the caustics, and reached the required clearness in just a small portion of the time I wasted when I was waiting for the whole image to refine.
So, now, I've got some parts that were at level 13 sampling, and some, that were at lvl 20. Combined the two in PS, and got a qite nice, and, imo, still unbiased solution, in quite a reasonable time.
It would be nice, to have this whole process automated, for example, a min, and max sampling level, and a noise threshold spinner. If a given region is good eneugh, maxwell would simply leave that part alone, like it does with a bitmap region rendering, and continue to work on the noisy parts, until they are noisless, or until the max sampling level is reached. Noise thresh could also terminate a render, if every pixel is good eneugh. (also, at different sampling levels) I dont know, if this is possible, but sure sounds good to me.
Dont get me wrong, if this is a sloppy pathway down to the hell of biased solutions, than forget every word I've said.
) I like the noise, I just want a more balanced solution. The noise imo is like working on film, instead of a digital ccd, got more life in it... before maxwell came, I spent long times trying to make a nice, organic gainy look,like now maxwell does. And, of coure, if this was posted befiore, and so, I've said nothing.
A.
(edited some spelling mistakes, and sorry for my bad english...)
I had this strange feeling, that this has to be some feature, thats just too evident, to be overlooked, but, I just had to post it. 