20 replies to this topic

[Funkdude]

Hi guys, i have a small issue, i tried to optimise this filter, it looks neat when rendered large (i want to make a blog post with some new photo filters, at 2048x2048) But this beast renders around 20 minutes to get a 512x512 non anti-aliased version. I might ,ick this and start a new simmilar one, but i think im on to something neat.

Does anyone know how to boost rendering without resorting to render individual nodes and import the result?

Attached Images

• 

Attached Files

•  Adaptive Ray Dots.gtx   86.87K   43 downloads

[MonsterMind]

Well, I wonder whether you could simplify the structure without loosing anything in quality.

[Funkdude]

Exactly. It would appear less detailed if i trim the number of nodes. Im working on a fractalize version, but thats also heavy to render. (Due to seeding the cells, cant use references or itll lose detail)

[Silkrooster]

I never seen that many nodes being used. Brings my system to a crawl. Ouch...

[Funkdude]

My 3D Island texture used more, I can cut the number and use a fractalize node, but that will give only a minimal speed boost.

(null)

Edited by Funkdude, 22 February 2012 - 01:25 AM.

[Funkdude]

I think the regions node is slowing things down a lot. Perhaps there is a smarter way with combine nodes and masks, but that would mean hundreds of additional nodes. I think it's worth testing though.

On another note, I'll whip up a wish list for tweaks and optimisations soon.

(null)

[Mr_Lamppost]

If I wanted to kill my system that would be one way to do it

The Regions node is always render heavy even one with lots of small regions is a killer. I'm building up a variant that doesn't use regions. No promises but given that I still don't have a 2048 X 2048 render of the original for comparison

[Mr_Lamppost]

It's still a memory hog and takes a while to render but for a small loss in accuracy there is a vast improvment in performance.


 Adaptive_Ray_Dot_NO_Regionss.gtx   202.29K   26 downloads

[Funkdude]

Neat! I'll check it out at home, I want to randomise the seed as well of the cells so that it looks a bit more random.

(null)

[Mr_Lamppost]

Funny you should mention that it's one of the things I thought about trying but I think randomising the cells might destroy the rays.

[Funkdude]

To be honest that was the purpose, but then I saw the ray like structures and decided to roll with it. It was a classic Bob Ross "happy accident"

(null)

[Mr_Lamppost]

Sorry I've sort of hijacked your filter, which gives me the chance to manually type in thousands of parameters Oh joy

After figuring out how to dump the Regions nodes I had a whole load of ideas for making an input driven general implementation of this idea. It turns out that the way Genetica implements noise and hence cell generation makes several of these ideas mutually exclusive. therefore I am developing along two branches.

The first involves randomised dots:

outside areas of constant colour dots are no longer monochrome which removes noticeable block boundaries.
Cells are randomised. Actually hand typed sequential seed values are used; change them if you are desperate.
A dot size control had been added. Constant red colour value; clamped to useful range. Solid Colour input: black = small dots, red = large dots.
Dot edges have been slightly softened.


 Adaptive_Ray_Dot_NO_Regions_Random_Dots.gtx   209.05K   18 downloads

[Mr_Lamppost]

While testng the dot size input I found this variant:


 Adaptive_Ray_Dot_NO_Regions_Random_Dots_Variant_02.gtx   208.57K   22 downloads

The final exposure needed adjustment.

[Silkrooster]

almost has vellum look to it. what would be kind of cool is for the image itself to have a water bleed look kind like the image is wet and running a bit, or splotches. anywho, just a thought.

[Funkdude]

Cool idea! Also neat that you managed to place a control node, I haven't done that before. I'll play a bit with it later today!

(null)