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I created a donut and cup in blender. I went into Render-Sampling and clicked on "Render" and set it to 1000. yeah, it was over kill, but it should be crystal clear. After 11 hours of rendering (no joke) it was crystal clear, of course, but the cup and half the donut as well had grain still! I already rendered it. I do not have photoshop. anyway to fix this? I am a beginner at blender, and i used my GPU to render it. any help is appreciated!

picture:

https://i.stack.imgur.com/gMecx.png

only took a couple hours :)

zoom in near the cup....

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    $\begingroup$ Some images and/or a .blend file would be helpful. You can upload a .blend file here blend-exchange.giantcowfilms.com $\endgroup$ – Dontwalk May 10 '17 at 13:44
  • $\begingroup$ what if it is a png? $\endgroup$ – Blender User1 May 10 '17 at 13:53
  • $\begingroup$ i've just finished rendering it $\endgroup$ – Blender User1 May 10 '17 at 13:54
  • $\begingroup$ check out this link, this is going to be helpful if render glass or refractive shaders google.fr/… $\endgroup$ – Pascal Nardi May 10 '17 at 14:57
  • $\begingroup$ You will have to upload your png in order for someone to help you. $\endgroup$ – Christopher Tiller May 10 '17 at 16:38
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It´s never completely noise-free. I rendered my latest projekt with 8192 samples and at some Points there is still grain (But it took just 1 hour to render, not really complicated lighting/mesh)

But as Benjaming J. already wrote, you can follow this link https://www.blenderguru.com/articles/7-ways-get-rid-fireflies/ Some tips are really helpful actually.

I also decreased render time on my latest Little Project(Yamaha HS7 Speaker) by Rendering the part of the Picture that tends to be noisier with a higher sample rate(For example the left part of the Picture where the Speaker stands). (This doesnt work with animations of Course)

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