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How can I explain in a good way that 6/48 AA subdivs is completely unnecessary to a work collegue?

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  • How can I explain in a good way that 6/48 AA subdivs is completely unnecessary to a work collegue?

    This guy I work with keeps using such high values, which in turn takes up the render farm for forever. The scene is nothing complicated, merely a car driving down the street with camera motion blur (in vray settings) and normal motion blur in the physical camera. Although I know these values are probably way too much, I don't have the technical knowledge to explain why. Can anyone help me?
    CGI Artist @ Staud Studios

  • #2
    Well you could have the same image rendered with these high settings and with defaults and overlay the 2 images in Photoshop using "difference" blending mode. The result would probably be a black picture, which means there is almost no difference between the two.

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    • #3
      It might have a reason, though: Sometimes when rendering with motion blur, you might get a black bucket near the edge of the blur. This happened to me already, often on fast spinning car wheel that were moving at the same time. The solution is to increase the Min AA to 2 or more. But 6 is a bit high.
      Here is the tip for that from Vlado himself: https://forums.chaosgroup.com/forum/...issing-buckets
      https://www.behance.net/Oliver_Kossatz

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