Problem with points or geometry in a model (noob question) I have a model of a car, and there are a couple of broken bits.  Just these two near each other.  But I have no idea where t start looking to fix this distortion. It seems to be just in the rendering, the model shape seems fine, the second picture shows a different angle.

How can I fix this blemish?





EDIT:  After some advice from below I was missing around and merged some vertices, and that solved one problem (and it will fix the other too), but now I wonder will that cause issues with anything else? UV's etc?
Seems like wrong direction of "normals". Try enter edit mode, select all, then Recalculate Normals (Shift + N or menu Mesh > Normals > Recalculate Outside ).