Material application problem for unstructured objects How do I solve the problem of strange application of objects like in the picture? The triplanar function is checked
your UV mapping is not correct. possible to look at your 3d model. maybe show a picture of that here, can also help to show if that is the problem.
i have this also sometimes with my 3d modelling in SKP.
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Hi @yyr5811,
Sorry for any inconvenience caused. Do you have a full UV mapping? Or is it a stitching of two maps? Try this seamless function to achieve the effect you want. Hope it helps. 
Best