vkCmdBuildAccelerationStructuresIndirectKHR

To build acceleration structures with some parameters sourced on the device call:

void vkCmdBuildAccelerationStructuresIndirectKHR(
    VkCommandBuffer                  commandBuffer,
    uint32_t                                           infoCount,
    const VkAccelerationStructureBuildGeometryInfoKHR* pInfos,
    const VkDeviceAddress*             pIndirectDeviceAddresses,
    const uint32_t*                    pIndirectStrides,
    const uint32_t* const*             ppMaxPrimitiveCounts);

• commandBuffer is the command buffer into which the command will be recorded.
• infoCount is the number of acceleration structures to build.
• pInfos is a pointer to an array of infoCount
  VkAccelerationStructureBuildGeometryInfoKHR structures defining the geometry used to build each acceleration structure.
• pIndirectDeviceAddresses is a pointer to an array of infoCount buffer device addresses which point to pInfos[i].geometryCount
  VkAccelerationStructureBuildRangeInfoKHR structures defining dynamic offsets to the addresses where geometry data is stored, as defined by pInfos[i].
• pIndirectStrides is a pointer to an array of infoCount byte strides between elements of pIndirectDeviceAddresses.
• ppMaxPrimitiveCounts is a pointer to an array of infoCount pointers to arrays of pInfos[i].geometryCount values indicating the maximum number of primitives that will be built by this command for each geometry.

Accesses to acceleration structures, scratch buffers, vertex buffers, index buffers, and instance buffers must be synchronized as with vkCmdBuildAccelerationStructuresKHR.

Accesses to any element of pIndirectDeviceAddresses must be synchronized with the VK_PIPELINE_STAGE_ACCELERATION_STRUCTURE_BUILD_BIT_KHR

pipeline stage and an access type of VK_ACCESS_INDIRECT_COMMAND_READ_BIT.