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I've downloaded some car models, and after applying the scale on them, it became apparent that some of them have a narrower fresnel angle, so only the clearcoat is visible on most of the object.enter image description here I've made up a simplified .blend file, which i've uploaded here. the two objects have the same topology, and are joined and using the same material slot, but the left uses faces pulled from the car model, and the right uses freshly added faces. enter image description here It's also not affected by texture space, UV Mapping, or face orientation.

any advice would be greatly appreciated.

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  • $\begingroup$ Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. $\endgroup$
    – Community Bot
    Jun 11, 2022 at 5:53

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As you can see if you enable the display of the normals, the cube on the left have inverted normals, select all in Edit mode and press ShiftN to recalculate the normals:

enter image description here

It also has custom split normals data, which may create bad shading, maybe clear:

enter image description here

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  • $\begingroup$ that's weird, I thought I'd checked face orientation, but obviously not; that seems to be the source of the problem. thanks for your help! $\endgroup$
    – Captain Zoll
    Jun 12, 2022 at 14:12

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