VkRayTracingLssPrimitiveEndCapsModeNV

The default behavior with endcaps in a LSS chain is that both endcaps will be enabled for all beginning and end points. To change the LSS chain’s endcaps mode use VkAccelerationStructureGeometryLinearSweptSpheresDataNV::endCapsMode. The possible values for endCapsMode are:

typedef enum VkRayTracingLssPrimitiveEndCapsModeNV {
    VK_RAY_TRACING_LSS_PRIMITIVE_END_CAPS_MODE_NONE_NV = 0,
    VK_RAY_TRACING_LSS_PRIMITIVE_END_CAPS_MODE_CHAINED_NV = 1,
} VkRayTracingLssPrimitiveEndCapsModeNV;

• VK_RAY_TRACING_LSS_PRIMITIVE_END_CAPS_MODE_NONE_NV disables all endcaps and the chain boundaries have no influence.
• VK_RAY_TRACING_LSS_PRIMITIVE_END_CAPS_MODE_CHAINED_NV specifies that when VK_RAY_TRACING_LSS_INDEXING_MODE_SUCCESSIVE_NV is used as indexing mode for the LSS primitive, the first primitive in each chain will have both endcaps enabled, and every following primitive in the chain only has endcaps at the trailing position enabled.