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The wing flaps are 2D planes that i applied a solidify mod on them. how do i remove these black marks/seams?
Add more diffuse light, or lights from other angles, so that ripples don’t make such harsh shadows.
If you switch to "flat" rather than "smooth", will the black show?
If you switch to " flat" and the black disappear, the solution will be to make more "subdivision" in the "edit mode" and then switch back to "smooth"
Use Edge split modifier and try changing angle
Try Applying Subdivision surface modifier
if this does not work apply solidify modifierand go to edit mode and re-calculate normals by pressing "Shift + N"
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