Underneath seams showing through...
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the top? How to fix?
The shingles are 1/16" thick and the plywood seams underneath are showing up? How to stop this?
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If you place something exactly on top of something else it will show through - it's logical - which of them is to be shown - why of course they both are, after all they are in the same 'space'.
If you want the 'top' thing to be dominant then you must move it above the other objects.
Note that even if they are not coincident you can still get 'z-fighting' - the graphics drivers have to decide where stuff is and sometimes they'll get it wrong, even when things are actually separated in their spacing - so increase the spacing if that happens... -
@tig said:
If you place something exactly on top of something else it will show through - it's logical - which of them is to be shown - why of course they both are, after all they are in the same 'space'.
If you want the 'top' thing to be dominant then you must move it above the other objects.
Note that even if they are not coincident you can still get 'z-fighting' - the graphics drivers have to decide where stuff is and sometimes they'll get it wrong, even when things are actually separated in their spacing - so increase the spacing if that happens...That's what I figured. I fixed it by increasing the spacing 1/64" at a time until it no longer showed. Thank you!
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The exact logic behind this effect is that all edges in SketchUp display at a constant thickness regardless of their distance from the observer. If you are zoomed right into a rafter, for instance, then that apparent thickness is only that of a length of cotton thread; zoom out a couple of hundred yards, and it's as thick as the mooring ropes of a supertanker....so will show through any thin covering surface. The only solution (other than turning all edges off) is to increase the separation...as you have done...or if all else fails, just hide the offending edges.
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Hi folks.
And, to add to Alan explanation, this is a limitation of Open GL. When viewed from a distance, the difference between object becomes very small. In fact, it becomes so small that Open GL cannot decide which object is closer and thus, it display both. The best workaround is to hide the offending edges, as pointed out by Alan. You may try setting the profiles to a thinner setting. This may work up to some distance but it is not as foolproof as hiding the edges.
Just ideas.
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Great info guys or girls! Thank you.
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