How do I remove them?
They don't appear when using flat shading.
Nothing in the scene can cause this.
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$\begingroup$ Cycles is your render? $\endgroup$– atomicbezierslingerCommented May 19, 2015 at 22:19
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$\begingroup$ Glossy surfaces reflec the things around them... is your environment empty or black?. $\endgroup$– user1853Commented May 19, 2015 at 23:16
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2 Answers
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The problem occurs in smooth shading because it changes the way the shading is calculated across the surfaces, giving the illusion of a smooth surface even if the angle between the faces is sharp.
To correct that, add edge split modifier while all faces are set to smooth shading.
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10$\begingroup$ Would be useful to add why this is the solution. $\endgroup$ Commented May 19, 2015 at 22:51
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- Consider using a mix shader in Cycles. Mix a combo of diffuse dominantly and and gloss to a lesser degree.
- Replace your first shader with the mix shader then add the gloss and diffuse
answered May 19, 2015 at 22:20
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1$\begingroup$ While this does help, it doesn't remove the problem completely. $\endgroup$– 65465168Commented May 19, 2015 at 22:30