Why is my vertices 3D model flickering?

Your 3D model’s vertices are flickering usually due to three main issues: z-fighting (overlapping geometry), low vertex coordinate precision, or overly tight camera near/far clipping planes. - **Z-fighting**: When surfaces are too close, the GPU can’t distinguish which to render first, causing flicker. - **Low precision**: Large or imprecise vertex coordinates make vertices “jump” visually. - **Tight clipping planes**: The camera’s near/far range is too narrow, cutting through parts of the model unexpectedly. Fix z-fighting by slightly separating overlapping surfaces. For precision, center the model at the origin to simplify coordinates. Widen the near/far clipping plane range to avoid cutting the model.