Quote - DarkElegance, 6000x5000 is a massive image and that kind of size will defintely require a lot of time. I never rendered anything near that size. I would suggest something more reasonable while you get your bearing with Lux. Also, at athat size you have probably consumed all your RAM and hit the swap on disk, which will slow things down to a crawl.

Having said that, the robot image that you posted presents no issue to be rendered with Lux. In fact it can gain a lot. Without seen your scene setup, lights etc I can only guess what happened. Often the issues with grain are caused by misplaced lights. Lights must have a clear path to reach the objects. That is the same that is done in photography. In fact the secret of getting great results at good speed in Lux is to light like a photographer.

Unfortunately a lot of 3D artists have been trained to use the unrealistic model of 3D lights where light path is not as well understood as it is in real life. I would suggest to start over with a simple approach in order to develop the practise necessary:

• Add one figure to the scene

• Add one mesh light, no other lights. If you need to have a light to see the scene make sure that you disable it in Reality

• Set the resolution to standard HD video: either 1280x720 or 1920x1080

• Render

 

Start with that setup and then move the Reality mesh light around to get a feel of it works. Try 5 renders with one light only and see how much understanding you get out of it. When you get the hang od it then add a second mesh light. Or a IBL light.

Hope this helps.

 bot scene originally had a mesh light on the top but that wasnt right as the top parts were blocking the light from the bot, I then used the circular tubing on the upper part as a "light".(you cant see it in the picture but that upper part has a circular tube that runs around it) I actually liked how that looked but it wasnt giving enough light on her face and hands. So I tried tweeking out the lighting by putting a mesh light just above her..but again it wasnt lighting the way I wished.

after many tries I had the "firefly issue " when I tried to use the "red lights" as lights (Just not red) and just about gnawed my lower lip off trying to figure out how to get it to light the way I wanted.

(there was also an issue with reality not wanting to change the materials on the bot which I -still- cant get it to do. it still throws up the error message I posted in RDNA when the piece was in progress)

Trust me, I know reality produces great results, I know materials are SWEET in it. Its the time factor.

When I was playing around with the Bot picture I had tubing(the ones coming from her head) looking more like color glass that was lit. It was lovely.

But.... it just wouldnt work.

I render at that size normally for print.  I use to render 3000x3000(or what ever was needed ratio wise) and 300dpi.

https://www.darkelegance.co.uk/

Commission Closed till 2025