vkCmdCopyMemoryToAccelerationStructureKHR

To copy device memory to an acceleration structure call:

void vkCmdCopyMemoryToAccelerationStructureKHR(
    VkCommandBuffer commandBuffer,
    const VkCopyMemoryToAccelerationStructureInfoKHR* pInfo);

• commandBuffer is the command buffer into which the command will be recorded.
• pInfo is a pointer to a VkCopyMemoryToAccelerationStructureInfoKHR structure defining the copy operation.

Accesses to pInfo→dst must be synchronized with the VK_PIPELINE_STAGE_2_ACCELERATION_STRUCTURE_COPY_BIT_KHR

pipeline stage or the VK_PIPELINE_STAGE_ACCELERATION_STRUCTURE_BUILD_BIT_KHR

pipeline stage, and an access type of VK_ACCESS_ACCELERATION_STRUCTURE_WRITE_BIT_KHR. Accesses to the buffer indicated by pInfo→src.deviceAddress must be synchronized with the VK_PIPELINE_STAGE_2_ACCELERATION_STRUCTURE_COPY_BIT_KHR

pipeline stage or the VK_PIPELINE_STAGE_ACCELERATION_STRUCTURE_BUILD_BIT_KHR

pipeline stage, and an access type of VK_ACCESS_TRANSFER_READ_BIT.

This command can accept acceleration structures produced by either vkCmdCopyAccelerationStructureToMemoryKHR or vkCopyAccelerationStructureToMemoryKHR.

The structure provided as input to deserialize is as described in vkCmdCopyAccelerationStructureToMemoryKHR, with any acceleration structure handles filled in with the newly-queried handles to bottom level acceleration structures created before deserialization. These do not need to be built at deserialize time, but must be created.