Module gpu_preprocessing

Batching functionality when GPU preprocessing is in use.

Structs

• BatchedInstanceBuffers
  The GPU buffers holding the data needed to render batches.
• BatchingPlugin
• GpuOcclusionCullingWorkItemBuffers
  The work item buffers we use when GPU occlusion culling is in use.
• GpuPreprocessingSupport
  Records whether GPU preprocessing and/or GPU culling are supported on the device.
• IndirectBatchSet
  A structure, shared between CPU and GPU, that holds the number of on-GPU indirect draw commands for each batch set.
• IndirectParametersBuffers
  The buffers containing all the information that indirect draw commands (multi_draw_indirect, multi_draw_indirect_count) use to draw the scene.
• IndirectParametersCpuMetadata
  A structure, initialized on CPU and read on GPU, that contains metadata about each batch.
• IndirectParametersGpuMetadata
  A structure, written and read GPU, that records how many instances of each mesh are actually to be drawn.
• IndirectParametersIndexed
  The wgpu indirect parameters structure that specifies a GPU draw command.
• IndirectParametersNonIndexed
  The wgpu indirect parameters structure that specifies a GPU draw command.
• InstanceInputUniformBuffer
  Holds the GPU buffer of instance input data, which is the data about each mesh instance that the CPU provides.
• LatePreprocessWorkItemIndirectParameters
  A GPU-side data structure that stores the number of workgroups to dispatch for the second phase of GPU occlusion culling.
• MeshClassIndirectParametersBuffers
  The buffers containing all the information that indirect draw commands use to draw the scene, for a single mesh class (indexed or non-indexed), for a single phase.
• PhaseBatchedInstanceBuffers
  The GPU buffers holding the data needed to render batches for a single phase.
• PhaseIndirectParametersBuffers
  The buffers containing all the information that indirect draw commands use to draw the scene, for a single phase.
• PreprocessWorkItem
  One invocation of the preprocessing shader: i.e. one mesh instance in a view.
• UntypedPhaseBatchedInstanceBuffers
  The GPU buffers holding the data needed to render batches for a single phase, without a type parameter for that phase.
• UntypedPhaseIndirectParametersBuffers
  The buffers containing all the information that indirect draw commands use to draw the scene, for a single phase.

Enums

• GpuPreprocessingMode
  The amount of GPU preprocessing (compute and indirect draw) that we do.
• PreprocessWorkItemBuffers
  The buffer of GPU preprocessing work items for a single view.

Functions

• batch_and_prepare_binned_render_phase
  Creates batches for a render phase that uses bins.
• batch_and_prepare_sorted_render_phase
  Batch the items in a sorted render phase, when GPU instance buffer building is in use. This means comparing metadata needed to draw each phase item and trying to combine the draws into a batch.
• clear_batched_gpu_instance_buffers
  A system that runs early in extraction and clears out all the BatchedInstanceBuffers for the frame.
• clear_indirect_parameters_buffers
• collect_buffers_for_phase
  A system that gathers up the per-phase GPU buffers and inserts them into the BatchedInstanceBuffers and IndirectParametersBuffers tables.
• delete_old_work_item_buffers
  A system that removes GPU preprocessing work item buffers that correspond to deleted ExtractedViews.
• get_or_create_work_item_buffer
  Returns the set of work item buffers for the given view, first creating it if necessary.
• init_work_item_buffers
  Initializes work item buffers for a phase in preparation for a new frame.
• write_batched_instance_buffers
  A system that writes all instance buffers to the GPU.
• write_indirect_parameters_buffers