What can light leaks indicate about a scene's geometry?

Light leaks in a scene often suggest that there are unexpected gaps or errors in the geometry. When light is shining through unintended openings or cracks in the mesh, it typically indicates that the geometry is not properly closed or that there are triangulation issues that need addressing. This means that the mesh does not fully encapsulate the volume it is meant to represent, allowing light to pass through areas where it should not.

Mismatched UV seams or poorly aligned vertices can also contribute to this problem, leading to light penetrating through surfaces. Identifying and correcting these issues is crucial for achieving a realistic representation of light and shadow in the scene, as it can significantly impact the visual quality and immersion of the environment.