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I'm trying to render a building, and the top of the building is partially showing through the platform on the roof when I pull back the view. The platform is already .1m above the roof. I can make it no longer show through if I raise the platform more, but then the platform is in the wrong place.

enter image description here

When I zoom in, there isn't a problem. Is there a setting I'm missing or something?

The building is 300m tall. The clipping goes away when I space it 1m from the roof. This example shows clipping at .1m. The camera is about 500m from the building.

The surfaces aren't overlapping, so I wouldn't think that z-fighting would take place, even though that's what it looks like.

Robert Rapplean
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    What is the Scale and Dimension of the building an roof? – vklidu Jun 28 '23 at 04:52
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    Does this answer your question? Cause of black artifacts in render? – Leander Jun 28 '23 at 05:45
  • Check the clipping-range of your camera is appropriate to the min and max camera -> feature distances during the shot. (In extreme cases, you can key-frame those) – Robin Betts Jun 28 '23 at 07:43
  • @Leander, these faces are not overlapping, so z-fighting shouldn't apply, unless I'm hitting a resolution limit I'm not aware of. – Robert Rapplean Jun 28 '23 at 16:03
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    Yes, probably the latter. Listening the Robin Betts' advice will redistribute the buckets considered same depth, so if you decrease the clipping range, the visible range will be smaller and so each bucket will be smaller and it will be less likely for two faces to end up in the same bucket. – Markus von Broady Jun 28 '23 at 17:24
  • It is still z-fighting caused by the limited precision of floating point numbers. Did Robin Betts' suggestion solve your problem. – Leander Jun 28 '23 at 17:50
  • So, funny thing, I was looking at the object in the viewport, not through the camera. When I switched to the camera, the artifacts went away. Was not expecting that. – Robert Rapplean Jun 29 '23 at 01:17
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    Viewport can have different clipping range than camera. – Markus von Broady Jun 29 '23 at 08:12
  • @MarkusvonBroady, so it would seem. My apologies for bugging you all with a noob issue. Would one of you like to post that as an answer, or should I take a whack at it? I can alter the question with details as necessary. – Robert Rapplean Jun 29 '23 at 21:07
  • https://blender.stackexchange.com/questions/5201/how-do-i-increase-the-render-distance https://blender.stackexchange.com/questions/1385/shadows-along-edges-of-mesh-in-3d-view https://blender.stackexchange.com/questions/8553/why-does-part-of-my-model-disappear-when-i-zoom-in-on-it-in-the-3d-viewport – Duarte Farrajota Ramos Jul 03 '23 at 16:00
  • Thanks, @DuarteFarrajotaRamos. The issue seems to be that there are numerous pieces of information that need to be combined to solve this problem. "Z-fighting will produce these artifacts," "Clipping needs to be set separately for viewport and render," and also "Broader clipping range can induce z-fighting" None of the listed questions actually combines these, so I'll write my own answer. – Robert Rapplean Jul 03 '23 at 18:06

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