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So I was following a tutorial on YouTube on How to make light bulbs (by Blender Guru) but when I did the render black spots appeared on the filament . AND They don't look like noise AT ALL.

You can see them on the glowing bulbs filament and the glass cylinder thing.

Why do they appear and how do I get rid of them?

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note the black spots onenter image description hereenter image description here

These are my settings

  • Laldhinthara, could you add a little more information? May be attach your blender file (use https://blend-exchange.giantcowfilms.com/) or add screenshots of your render settings (Samples, denoising...) and material setup? This way you would increase your chance of getting an answer. – Bruno Mar 20 '18 at 11:17
  • See this post also: https://blender.stackexchange.com/questions/96002/whats-causing-the-colorful-artifacts –  Mar 21 '18 at 02:22

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