I did a Tutorial on YouTube. When rendering the animation I got a diagonal line with artifacts.

Render result

This is a render of 300 samples

300 samples

I am fairly new to blender so thought i was doing something wrong. Started over used the correct settings for the project but got the same result at the beginning of the tutorial. Both CPU and GPU render show artifacts.

Render result

Searched on the internet but couldn't find an answer. Any help is much appreciated.

  • $\begingroup$ I have a feeling it has something to do with camera clipping planes. Not sure though. Could you send the .blend file? $\endgroup$ – Alphisto Jan 14 '17 at 14:33
  • 1
    $\begingroup$ You're only rendering 1 sample. Cycles can need hundreds or thousands of samples to render an image cleanly. Try upping the number of samples (seen in the Sampling panel in your screenshot) to 200 and see if you still get the same result. $\endgroup$ – Ray Mairlot Jan 14 '17 at 15:03
  • $\begingroup$ @Ray Mairlot This line is from the tutorial; "Since we gonna be using a lot of emission shaders to pull this effect off, we don't really need that much sampling so this is set to 1." I already did increase the number of samples did one of 300 and one of 1000 samples and got a slightly better result, but still not perfect. If i raise up the sampling the animation is not being saved in the render output folder. I still have to learn a lot about blender and i am not that technical sorry for that $\endgroup$ – FunkY Jan 15 '17 at 8:44
  • $\begingroup$ @Alphisto <img src="http://blend-exchange.giantcowfilms.com/embedImage.png?bid=2548" /> $\endgroup$ – FunkY Jan 15 '17 at 9:07
  • $\begingroup$ One sample should be enough if you are only using emissive and transparency shaders, like in this tutorial. I downloaded and rendered your file and I had the same image as your first image, but without the diagonal artifact. I rendered on the CPU, because I don't have a supported GPU on this laptop. What happens if you render with the CPU? $\endgroup$ – lbalazscs Jan 15 '17 at 13:33

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