pub unsafe fn emit_mesh_tasks_ext_payload<T>(
group_count_x: u32,
group_count_y: u32,
group_count_z: u32,
payload: &mut T,
) -> !Expand description
Defines the grid size of subsequent mesh shader workgroups to generate upon completion of the task shader workgroup.
‘Group Count X Y Z’ must each be a 32-bit unsigned integer value. They configure the number of local workgroups in each respective dimensions for the launch of child mesh tasks. See Vulkan API specification for more detail.
‘Payload’ is an optional pointer to the payload structure to pass to the generated mesh shader invocations. ‘Payload’ must be the result of an OpVariable with a storage class of TaskPayloadWorkgroupEXT.
The arguments are taken from the first invocation in each workgroup. Any invocation must execute this instruction exactly once and under uniform control flow. This instruction also serves as an OpControlBarrier instruction, and also performs and adheres to the description and semantics of an OpControlBarrier instruction with the ‘Execution’ and ‘Memory’ operands set to Workgroup and the ‘Semantics’ operand set to a combination of WorkgroupMemory and AcquireRelease. Ceases all further processing: Only instructions executed before OpEmitMeshTasksEXT have observable side effects.
This instruction must be the last instruction in a block.
This instruction is only valid in the TaskEXT Execution Model.