3D-Daz Daz3d Art - Show Us Your DazSkill

5.00 star(s) 13 Votes

mattocean

Active Member
Oct 8, 2018
618
7,235
Hi Guys,

please help me. I am rendering a pool scene and the water is very noisy.

1686584898678.png

The figures and other enviroments looking great at the end of the rendering just the water is noisy. How can I make it smooth without to use denoiser? Thanks.
 
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3D Reaver

Well-Known Member
May 15, 2020
1,455
5,804
Hi Guys,

please help me. I am rendering a pool scene and the water is very noisy.

View attachment 2692605

The figures and other enviroments looking great at the end of the rendering just the water is noisy. How can I make it smooth without to use denoiser? Thanks.
I think that its highly unlikely that there is something wrong with the rendering settings or with the water shader. Water is costly. I would use spot rendering with denoizer. Trying to limit to only the water and then merge it in photoshop with the main scene. You will need to blend the edges with a mask or you will get a visible seam. I also do this for character faces so I can render it for way more samples without it taking a million years.
 

Precox

Newbie
Mar 13, 2019
78
136
I think that its highly unlikely that there is something wrong with the rendering settings or with the water shader. Water is costly. I would use spot rendering with denoizer. Trying to limit to only the water and then merge it in photoshop with the main scene. You will need to blend the edges with a mask or you will get a visible seam. I also do this for character faces so I can render it for way more samples without it taking a million years.
Could you expand on that? That sounds really cool!
 

3D Reaver

Well-Known Member
May 15, 2020
1,455
5,804
Could you expand on that? That sounds really cool!
Eh i don't know what more i could add.
Some things are noisers than others, some things are more important to the image than others, some things react well to the daz denoizer and others result in visual artifacts. it depends. I do consistently run the faces at a higher sample than the rest of the photo.
1.PNG
the original. the noise is especially bad in the face, the body is acceptable and the background is "clear"
2.PNG
i use spot rendering tool on just the face and its super fast. if you dont blur the edges you might end up with some ugly visual artifacts or straight edges that wont clear up when you denoise the image and do other post processing.
3.PNG
You can see where the original meets the more detailed render but its fine. there wont be much detail in that area and it will clear up in post. you apply this to a new layer so that you keep the original renders in case you need them.
4.PNG
How it looks at the end. You cant see where they meet and this is very zoomed in.
 

darkside80

Active Member
Jun 25, 2017
555
20,074
Hi Guys,

please help me. I am rendering a pool scene and the water is very noisy.

View attachment 2692605

The figures and other enviroments looking great at the end of the rendering just the water is noisy. How can I make it smooth without to use denoiser? Thanks.
I think your problem is with the lighting. Depending on the position of your lighting (spotlight, etc.), this can cause grain in the water.

here's a small example, this image was rendered with 500 iterations, one with a spotlight directed towards the water and the other with a hdri source only.

with spotlight
water_spotlight.png

with hdri only
water_hdrionly.png
 

Precox

Newbie
Mar 13, 2019
78
136
Eh i don't know what more i could add.
Some things are noisers than others, some things are more important to the image than others, some things react well to the daz denoizer and others result in visual artifacts. it depends. I do consistently run the faces at a higher sample than the rest of the photo.
View attachment 2692893
the original. the noise is especially bad in the face, the body is acceptable and the background is "clear"
View attachment 2692894
i use spot rendering tool on just the face and its super fast. if you dont blur the edges you might end up with some ugly visual artifacts or straight edges that wont clear up when you denoise the image and do other post processing.
View attachment 2692895
You can see where the original meets the more detailed render but its fine. there wont be much detail in that area and it will clear up in post. you apply this to a new layer so that you keep the original renders in case you need them.
View attachment 2692897
How it looks at the end. You cant see where they meet and this is very zoomed in.
Thanks for taking the time explaining this.
 
5.00 star(s) 13 Votes