Modeling a Stratocaster: need wrinkles to get rid of wrinkles!

Greetings!

Blender newbie here, looking for some help. Im modeling a strat and I keep getting these ugly wrinkles on the body in cycles (which is my goal for rendering) and not entirely sure why. As far as I know there’s no double vertexes and edges and all that funky stuff. My best bet is the neck cutout. I also know Blender doesn’t like triangles and odd shapes but I should be able to model a strat in cycles without these, right?
Attached a picture and also here is a link for the project file: https://www.dropbox.com/s/uu957mf170kmi6w/Stratocaster2_pickguardcutting.rar?dl=0

Thanks in advance!

That’s usually an indicator of the geometry not being “good” and the smoothing being such that you generate artefacts. Looking at your object, I just selected the large face for the scratchplate and chose edges->sharpen edges and did likewise on the body. Though technically, a strat has a chamfer for the elbow and wouldn’t be just one flat surface.

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I completely agree with colkai. In addition, you could try to add an extra support loop for each of the large n-gons (e.g. for the flat surfaces of the pickguard or the body). To do this, select the face and press i in edit mode and move the mouse slightly.



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Normal issues:

viewport overlay

Enabling the facing overlay you can quickly identify many face normal issues.

Red areas are facing inside the mesh instead of outside.

Topology issues:

Large n-gon shapes adversely affect normal calculations. You can select the face and perform a small inset to help flatten the surface.

edge loops

Your edge loops should be continuous all the way around the side. Something went very wrong here.

Excess geometry:

merge verts

excess verts

You dont need so many loop cuts along the edge.

mark sharp

Quick fix mark sharp the face on each side.

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Thank you for the reply! I will try this as soon as I will have time to model again! I still couldn’t wrap my head around how to make the chamber for the elbow.

Thank you very much for the reply! I will do this also!

This is enourmous help, I cannot tell you how grateful I’am. This is basically a tutorial for my own project. Much appreciated! The edge loop problem is something I still cannot figure out, how to join a beveled edge into a harder edge (the big bevel from the body into the sharper edge under the neck cut).