depth-clip-control

Normally, primitives outside the near/far range are clipped away. With unclippedDepth set on the pipeline’s primitive state, depth is clamped instead - geometry in front of the near plane still rasterizes at the clamped depth. Shadow mapping is the marquee use: casters between the light and its near plane would otherwise vanish and cause light leaks (“peter-panning” fixes often start here).

It corresponds to depthClamp in Vulkan and rasterizer depth-clip control in D3D/Metal, and is widely supported on desktop-class hardware. Renderers usually treat it as a quality enhancement with a fallback of tighter frustum fitting.