This struct contains the properties of a culling split.
| cascadeBlendCullingFactor | Cascade blend culling factor. |
| cullingMatrix | Culling matrix. |
| cullingPlaneCount | The number of culling planes this split has in BatchCullingContext.cullingPlanes. |
| cullingPlaneOffset | The index of the first plane in this split in BatchCullingContext.cullingPlanes. |
| nearPlane | The near plane distance of the culling frustum. |
| sphereCenter | The center of the culling sphere. |
| sphereRadius | The radius of the culling sphere. |