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Hey Jure (and Johny), thanks for taking the time and looking at the scene and giving those pointers as well. I did try these options (precomputed with raytrace gave interesting look..) but not that succesfull with them. Interiorwise, I'm very happy with the results and can go beyond LW speed easily....

have you use for foliage kray surface shader?? see it: http://www.kraytracing.com/wiki/Kray_plugins#Kray_Surface_Shaders read this discussion: http://www.kraytracing.com/joomla/forum/index.php?f=3&t=1890&start=0&hilit=kray%20surface%20shader&rb_v=viewtopic yesterday i've rendered an...

Incited by some thread on the NT forums, I tried again to render foliage in Kray. I do like the prospect of using its nicer translucency and hailed superspeed. I always need animation, camera animation that is, so not too much jitter between frames would be nice and some caching to reduce rendertime...

Sure I read that, but it is still a tad vague. Other sources I found were too much in depth, with emphasis on the math..
I'll try to find some better in between description when I get the time, thx.

Erwin, just found the time to check your scene and I'm impressed. Contact shadows are there and it holds up at 200% resolution quite well too. I don't get why you mix 35% light with a lumi poly... why do 2 at the same time? I can surely see that it looks alot worse when the light is turned off.. but...

They are still floating though..
Got to check how Erwin did it in 6.. thanks for putting the scene up.


Anyone of you do the current CgTalk lighting challenge?

Could you upload the scene that renders it in 53 seconds like you have there please?
Would be interested to see how you changed it.

It has more blurry contact shadows and some light leaks on the bottom of that right cube, but over all it looks fast and nice.

Thanks for the link again Matt.

The scene I used:

edit: Perhaps it is not the best scene indeed. But it is a simple one and good to start with I suppose.. Initially I just wanted to learn Kray (how PM's work etc) and tried using LW native to compare if I was getting decent rendertimes or needed more tweaking. I should have kept LW out at first and ...

ah yes, scene file, sorry. Will put it up when I'm home again.

Will move to a way heavier scene in a bit, I guess this one is too light to see much difference perhaps.

Continuing with my monologue :) Got rendertime down to 3m 39s, but setting min distance to 100%. It made hardly a difference (200% makes the touch shadows blur out though). So slowly getting there :) On the whole I like the Kray render better, just wondering if more can be done.. Next step of testin...

added to above: (I can't type well in long messages on forums, dunno why, some bug in my IE or so. Therefore I add it in new msg) -I forgot to turn on "use transparancy" in LW for that render. It matters, but doesn't make that much of a difference. It goes from 2m 50s to 3m 10s. See: Corne...

After a long time, I finally got some time to play with Kray (2.0) again. To test it vs LW I made a Cornell box (only after to find out Matt made a way more "official" one a while ago.. doh :)) But for some reason I can't get Kray to render faster than LW yet, which I would expect with som...

Does that really work... and in that case how? That´s slow! Try it with Kray :) Slow? Well the scene is there, show me how it's done. I'd be happy to learn a faster way. Yes, Hieron on NT forums is me. ps: I know I saw a post by Geo_n here, about Kray rendering HDI instances but only in raytracing ...