Question about rendering

crush0369

So, I was working on a new character today, my second. After my render finishes, I noticed little white specs near the eyes. I have rendered this like 3x and still get them. I have made changes to the render settings but I am clearly missing something. My last render before this one finshed at 12 minutes. So I up pixel size to 4k and capped it to 12 min. Max samples is 15000 and I can't get it to change.

Here is my stats for this render:

Brisen 8 for Mika 8
Madeline Tails hair for G8
Wild Nettle Dress

Pixel Size: 2160x3840 (9x16)
Max Samples: 15,000
Max Time: 720 sec (12 min)

Render converge rate 95%
Evironmental Map: 4K woods
Draw Dome On
Dome Only

No other lights in scene

Iray -
Total Time: 12 min 8.52 secs
595 iterations

Gaming Laptop:

I7-9750 2.6Ghz
16 GB Ram
RTX 2080 Max-Q

 

How can i improve this render and remove those little white specs? Any tips to improve my render quality would be msot helpful. Still trying to figure out lights and exact settings on my camera.

Doc Acme

Well, post a sample to start with.

A lot of verbage here for a viusal issue.  );

 

benniewoodell

If you have a 2080 RTX card, you should be able to use the post denoiser and not get any white specks and not have to render anywhere near 15000 iterations, like 500-1000 max with the post denoiser and it probably would look just the same. Set the post denoiser to start at like frame 300. I have a laptop with the same card. Personally, I rarely render a frame more than 350 iterations and I'm also doing 4K, that goes for both animated sequences and still renders on the rare occasion I do one. Try the post denoiser and let us know your results. 

PerttiA

The Max Time 720sec is stopping the rendering before it's finished, increase Max Time to 30000 sec.

Hylas

Set max time to 0 (= infinity).

If the problem persists, either increase "quality" or switch it off completely.

AndrewJJP

You can also use the Spot Render tool to render just the "bad" parts of the image to a crazy high quality very quickly.

• Render the whole image so you are satisfied with most of it.
• Make the sort of changes described above to improve the render quality.
• Switch to the spot render tool.
• In its tool settings, set it to render to a new image.
• Draw a box around a part you're not happy with.
• Let it run to a crazy number of iterations, even into the tens of hundreds of thousands. It will be quick.
• Save the image, giving it a different name.
• Composite that image with the whole render in a photo editor. I use Affinity Photo, but I expect most people use Photoshop or Gimp.
• Repeat for each area you want to improve.

 

crush0369

Doc Acme said:

Well, post a sample to start with.

A lot of verbage here for a viusal issue.  );

Yeah sorry. I posted it but I guess it was too big and got removed. Gonna reduce and reload shortly. Sorry

 

crush0369

I actually turned on the post denoiser (Thanks Bennie) and it cleared the specs right up. Sorry never had that happen. Starting fresh today to reduce my times and max samples and see the results. I am trying to upload the image and it starts uploading and then says NO File Data could Be Found.  So I am attaching link to where I posted it.

 

https://www.deviantart.com/wckdphoto/art/Anwen-Final-910649522

 

It was done with only the HDRI as light, SO I will be adding lights next and see if i can get it to look better

benniewoodell

crush0369 said:

I actually turned on the post denoiser (Thanks Bennie) and it cleared the specs right up. Sorry never had that happen. Starting fresh today to reduce my times and max samples and see the results. I am trying to upload the image and it starts uploading and then says NO File Data could Be Found.  So I am attaching link to where I posted it.

 

https://www.deviantart.com/wckdphoto/art/Anwen-Final-910649522

 

It was done with only the HDRI as light, SO I will be adding lights next and see if i can get it to look better

Huzzah! Glad it worked for you. The render looks good! Yeah, I haven't done a render without the post denoiser since it became available, it has saved me hours. A lot of times the post denoiser will look really bad at first, but after a few iterations it clears up and unless you know what you're looking for, you can't tell the difference between an image at 80% done with the post denoiser or 95% done without it (sometimes I get away with as low as 20% convergence for animated sequences).

crush0369

benniewoodell said:

crush0369 said:

I actually turned on the post denoiser (Thanks Bennie) and it cleared the specs right up. Sorry never had that happen. Starting fresh today to reduce my times and max samples and see the results. I am trying to upload the image and it starts uploading and then says NO File Data could Be Found.  So I am attaching link to where I posted it.

 

https://www.deviantart.com/wckdphoto/art/Anwen-Final-910649522

 

It was done with only the HDRI as light, SO I will be adding lights next and see if i can get it to look better

Huzzah! Glad it worked for you. The render looks good! Yeah, I haven't done a render without the post denoiser since it became available, it has saved me hours. A lot of times the post denoiser will look really bad at first, but after a few iterations it clears up and unless you know what you're looking for, you can't tell the difference between an image at 80% done with the post denoiser or 95% done without it (sometimes I get away with as low as 20% convergence for animated sequences).

 

Awesome. Thanks for the help everyone