The argument has probably already been developed: I went around the forum but didn't find it. I was looking for a basic setting to get good results to eliminate the "noise" on the scene. Thanks !

In most cases, increase the pixel sampling at the expense of render time usually clears that up, but it is difficult to determine pending how the scene and lighting is set up. Overall 10 pixel sampling may be the minimum, but I see better results sampling between 20 and 50. Again, the higher the sampling, the longer the render time.

Are you using GPU or CPU rendering?

I work on iMac withIntel core i7-3635QM CPU@ 2.40 GHz

Hi RAGraphicDesign!

Here are the settings I use on my Mac mini for medium quality renders. When I'm doing test renders, I set the Pixel Samples to 2 for a quick check of the scene. I use the Medium Quality Subsurface preset and then modify the parameters as seen in the image below.

Hope that helps a little!

Lee

Thanks LeeMoon! I will do some experiments:)

During your tests it might be an idea to try a render without Branched Path Tracing, I believe it provides less noise in concentrating on particular areas of a render where noise might be a problem but that is at the cost of much longer render times. I very rarely use it but set the pixel samples to 50 on the basis you can always stop the render at any point you are happy with it. It is a question of finding what works for you as noise, to some degree at least, is subjective and the scene being rendered can have an impact on at what point noise is acceptable.

This was stopped early in the render as this is the sort of scene where sharp crisps edges are not really expected and some noise may well be acceptable.

hornet3d posted at 11:22AM Thu, 02 January 2020 - #4375220

During your tests it might be an idea to try a render without Branched Path Tracing, I believe it provides less noise in concentrating on particular areas of a render where noise might be a problem but that is at the cost of much longer render times. I very rarely use it but set the pixel samples to 50 on the basis you can always stop the render at any point you are happy with it. It is a question of finding what works for you as noise, to some degree at least, is subjective and the scene being rendered can have an impact on at what point noise is acceptable.

A great render Hornet, but then again, I always like your renders.

That said, I also don't use BPT, and as a general rule, I use 20 pixel samples for a quick test render, and 40 pixel samples for a final render. Of course, most of my renders these days are done while beta testing for vendors, so my scenes aren't as involved as the type of renders you usually come up with, but doing a closeup of a character can often produce "noise" on the character's skin, and I like to avoid that as much as possible.

As far as render times go, the hardware is a main factor, as my now old laptop was a Win7 quad core with 8GB RAM. This new puppy is a Win10 six core with 16GB RAM, so the render times are MUCH shorter.

Miss B posted at 5:58PM Thu, 02 January 2020 - #4375263

hornet3d posted at 11:22AM Thu, 02 January 2020 - #4375220

During your tests it might be an idea to try a render without Branched Path Tracing, I believe it provides less noise in concentrating on particular areas of a render where noise might be a problem but that is at the cost of much longer render times. I very rarely use it but set the pixel samples to 50 on the basis you can always stop the render at any point you are happy with it. It is a question of finding what works for you as noise, to some degree at least, is subjective and the scene being rendered can have an impact on at what point noise is acceptable.

A great render Hornet, but then again, I always like your renders.

That said, I also don't use BPT, and as a general rule, I use 20 pixel samples for a quick test render, and 40 pixel samples for a final render. Of course, most of my renders these days are done while beta testing for vendors, so my scenes aren't as involved as the type of renders you usually come up with, but doing a closeup of a character can often produce "noise" on the character's skin, and I like to avoid that as much as possible.

As far as render times go, the hardware is a main factor, as my now old laptop was a Win7 quad core with 8GB RAM. This new puppy is a Win10 six core with 16GB RAM, so the render times are MUCH shorter.

Thanks for the comments.

I would totally agree that the noise would be a difficult issue with characters skin and particularly so if you are trying to produce a promo showing the skin details. I am not sure but I do not think that BPT would help much though in that I think it is more related to the areas where lights most obvious and only assists in certain parts of the render but I would be l pleased if someone could confirm or deny that. My guess is that you would want a absence of noise across the whole render for a promo.

Of course the other factor is what the render will be used for, for example, if is is to be printed there will be a texture to the paper or materiel that will mask any noise to a large degree.

Again another example in that, although close up, the subdued lighting will mask a lot of noise. On top of that skin is soft so it will absorb some noise but I agree it could also have a major impact and skin detail if really close up. This render may well be included in on of my photo books later in the year but I know from experience that noise will not be and issue even on high quality photo paper.

RAGraphicDesign posted at 7:18PM Thu, 02 January 2020 - #4375216

Thanks LeeMoon! I will do some experiments:)

You're very welcome!

Lee