VkAccelerationStructureMotionInstanceNV

Acceleration structure motion instances can be built into top-level acceleration structures. Each acceleration structure instance is a separate entry in the top-level acceleration structure which includes all the geometry of a bottom-level acceleration structure at a transformed location including a type of motion and parameters to determine the motion of the instance over time.

An acceleration structure motion instance is defined by the structure:

typedef struct VkAccelerationStructureMotionInstanceNV {
    VkAccelerationStructureMotionInstanceTypeNV type;
    VkAccelerationStructureMotionInstanceFlagsNV flags;
    VkAccelerationStructureMotionInstanceDataNV data;
} VkAccelerationStructureMotionInstanceNV;

• type is a VkAccelerationStructureMotionInstanceTypeNV enumerant identifying which type of motion instance this is and which type of the union is valid.
• flags is currently unused, but is required to keep natural alignment of data.
• data is a VkAccelerationStructureMotionInstanceDataNV containing motion instance data for this instance.