Help with very grainy results

rebkean

Hi. 

So I've searched a bit, but I think I need some help. Since I'm a beginner, I don't understand why the result is so grainy? I don't mind if it's a little like that, it's quite nice. But as you can see in the pictures here, it's a lot.
I tried to remove all windows, and it helped a little, but all finess with lighting was gone then, so it's not a great sollution. Are there settings that can help with this problem? The pictures on the buy page looks of course nothing like mine lol. I think you can guess which of the pics are frome there. =)

I tried rendering it in a higher resolution, but that made no difference. Any ideas on what to try? Remember that I don't know much about settings and most other things. I have mostly loaded a finished product and then just changed the settings to 1920x1080 and then "render". So my knowlege is quite limited. I want to learn however, so any information is appreciated. =)

/Kim

 

Richard Haseltine

Essentially, you need more light - you can always adjust tone-mapping to darken the image, but if you rely on light bounced from a few lights (or an HDR outside the room) then the image will take a long time to converge.

Inkubo

I very recently purchased a room that came with its own lights, but a test render with the product as it loads "out of the box" took a long time and produced a very dark and grainy render. I made the assumption that the lights were set up properly, as the producer intended, so to compensate I started looking into render settings. I think messing with the F-stop setting produced a brighter image for me, but this is not my forte. Maybe someone has a guide on using render settings to overcome the problems with dark sets.

One thing that would be a neat extra is if with each product, the PA would include a page of instructions on how to reproduce their sample renders. (Many already include the cameras and lights.)

tristanthorne1997

Ghost Lights and Probe Lights by Kindred Arts works wonders for every single one of my indoor renders. Well worth the money, and the really do speed up render times.

https://www.daz3d.com/iray-ghost-light-kit

https://www.daz3d.com/iray-light-probe-kit

dracorn

tristanthorne1997 said:

Ghost Lights and Probe Lights by Kindred Arts works wonders for every single one of my indoor renders. Well worth the money, and the really do speed up render times.

https://www.daz3d.com/iray-ghost-light-kit

https://www.daz3d.com/iray-light-probe-kit

I agree - these are great for dark scenes.

rebkean

OMG, I didn't realize this thread got posted lol. I removed it, or so I thought, cause I found other threads, perhaps in the right forum as well. 
Sorry about that, I will read this and check it out. I tested some things, and I think I'm learning. I think. 

And I see now that my attached files are not here...
I think this was the one I wanted to show you. Or wait, perhaps this was how it got when I made it work for 8 hours? Well, this one is grainy, but acceptable I think.

EDIT. And now I can see that the original pictures WAS posted. Perhaps I need a nap. 

EDIT 2. What I learned earlier, was that I needed to change the time settings. There was so many settings, and I knew aboslutely nothing. When I changed it to 8 hourse, it's not hurting my eyes anymore to look at the results, so that's good. Lighting will take a while to learn, but I'll get there.

rebkean

Thanks for the links. I will have to do something about the lights. As soon as I turn away from a window...well, you understand. 

I did a render earlier, outside the building. And wow! With the sun in my back, that looked so much better that I realized I had to do something about the lights, and start over.